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1 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. | Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. 新能源汽车安全隔离光耦解决方案 Broadcom Optocouplers Reliable automotive-grade Isolators for new energy vehicles March 16, 2016 Tech Shanghai Hong Lei Chen

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Page 1: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

1 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. | Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved.

新能源汽车安全隔离光耦解决方案

Broadcom Optocouplers –

Reliable automotive-grade Isolators for new energy vehicles

March 16, 2016 Tech Shanghai

Hong Lei Chen

Page 2: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

2 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

• Broadcom Isolation Products Overview

• Optocoupler Introduction

• Automotive-grade Optocouplers for Automotive Applications

• Optocouplers for EV Charging Station Designs

• Design Tools and Technical Support

• Summary

Agenda

Page 3: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

3 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Heritage of Technology

1961 1981 1996 1999 2002 2005 2007 2009 2014 2016 1991

IPO

Page 4: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

4 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Avago acquires

Broadcom

2016

Trademark: R2Coupler – Reinforced Reliability

2014

Automotive R2Coupler

Digital Opto

AEC Q100 Grade 1

(-40ºC to +125ºC) Smart gate drive opto-

coupler with integrated

dc-dc flyback controller

(ACPL-32JT)

Industry-first SiC

MOSFET Gate

Drive Optocoupler R2Coupler Design

in HEV

TS16949 Certification

(Assembly & Test)

2.5V low supply

voltage

optocoupler

High precision

optically isolated

amp (0.5%)

Optically isolated

voltage sensor

2009 2010 2007 2011 2013 2005 2012

PhotoIC with highest

insulation voltage

7500Vrms

14.2mm C/C gate drive, digital and

current sense

TS16949

Certification

(Epi/LED

Wafer Fab)

Avago spun off

from Agilent

2008

R2Coupler

in PHEV &

EV

2015

SSO12

Fine Pitch

Package

>40M

R2Couplers

Shipped

R2Coupler

Gate Drive &

IsoAmp AEC Q100

Grade 1

(-40ºC to +125ºC)

Broadcom Optocouplers – Market and Product Leadership HP Labs

developed

breakthrough

GaAsP LEDs

Commercially

available

Optocouplers

(JEDEC) offered by

HP

HP introduced High

Speed CMOS and

Wide-body (CNW)

Optocouplers

HP introduced IGBT

Gate Drive

Optocoupler

HP introduced Isolation

Amplifier utilizing Sigma-

Delta ADC technology

(HCPL-7800)

HP introduced 1st Gen

Smart Gate Drive

Optocoupler

(HCPL-316J)

1966 1993 1995 1992 1996 1970 1989 1997

Portfolio of multi-

channel /

bidirectional

optocoupler

3.3V/5V dual supply

voltage optocoupler

Fastest Digital

Optocoupler

(50MBd, PWD <2ns)

Agilent spun

off from HP

2002 2000 2004 1999

Page 5: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

5 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Broadcom Optocouplers Overview

Automotive-grade

Optocouplers

AEC-Q100 certification

Digital Optocouplers

Signal Isolation Digital Optocouplers

(up to 50MBd)

Digital Isolators (up to 100MBd)

Analog Optocouplers &

Special Functions

Isolation Amplifiers

Current / Voltage Sensing

Isolated ADC

Analog Output Iso-Amp

Gate Drivers

Power Device Gate Driving IPM Interface

IGBT/MOSFET Gate drivers Smart gate drivers

Basic gate drivers

Hermetic Optocouplers

MIL-PRF-38534 Industrial

Product Family

Market Segment

Page 6: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

6 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Optocoupler Product Market Segments

Motor Control

Page 7: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

7 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

What is Optocoupler? (also known as: Photocoupler, Opto-isolator, Optical isolator)

Light Blocking

Epoxy Outer Mold

Input

Leadframe

Output Leadframe

Insulation Tape

Other Parameters:

Package: SO, SSO, DIP, ACNV, ACNW, ACNT

Reliability / Operating Lifetime

Basic Safety Parameters:

Viso : dielectric withstand voltage (UL1577)

Viorm : max. working insulation voltage (IEC 60747-5-5)

Clearance, creepage, DTI : insulation coordinates

“Functional”, “Basic”, “Reinforced Insulation”

Safety certificates (component level standards):

UL1577, IEC 60747-5-5, CSA #5

ESD: HBM, MM, CDM

MSL=1 (most optocouplers)

Optocoupler Selection Criteria

Basic Electrical Parameters:

CTR (= Io/If) range

LED Vf, If

Vcc power supply range

Data rate (MBd) / tprop delay

Operating temp. range

CMRR kV/µs (noise immunity)

Page 8: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

8 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Broadcom Optocoupler Package Types

SO-5

Stretched

SO-6 (SSO-6)

Stretched

SO-8 (SSO-

8)

Standard

300mil

DIP8

Stretched SO-12

(SSO-12)

SO-16

SO-8

SO-8

400mil

DIP8

Widebody

500mil

DIP10

Widebody

14.2mm

SSO-8

SO-16

Narrow

body

SO-16

SO-8

SO-16

Narrow

body

DIP-4, DIP-6, DIP-8

DIP-16 White Housing

Jade DIP-8

Transparent Silicon

WIDEBODY

Reflective Silicon

LED Photo

Detector

Jade S0-16

White Housing

SO-4, SO-5, SO-8

SSO-6 SSO-8 Stag SO-8, SO-16

Page 9: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

9 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. | Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved.

Introduce R2Couplers – Broadcom Automotive-grade Optocouplers Broadcom offers reliable isolation technology with a wide selection of products

Page 10: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

10 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Applications in xEV Systems Different packages to meet different high voltage requirement

MOSFET

Driver

IGBT

Driver

IsoAmp IPM

Driver

10BMd

Digital

≤1MBd

Digital

Analog

Part No.

ACPL-

K30T

ACPL-

K33T

ACPL-

782T

ACPL-

M46T

ACPL-

M71T/

K71T/

K74T

ACPL-

M43T

ACPL-

M43T/

K43T

ACPL-

K34T

ACPL-

38JT

ACPL-

C87AT/

C87BT

ACPL-

M43T

ACPL-

M72T/

K72T/

K75T

ACPL-

M46T

ACPL-

M49T/

K49T

ACPL-

31JT

ACPL-

34JT/

344JT

ACPL-

C797T

ACPL-

K43T/

K44T

ACPL-

M61T

ACPL-

K43T/

K44T

ACPL-

32JT/

33JT

ACPL-

C799T*

ACFL-

6211T/

6212T

ACFL-

5211T/

5212T

Charger ● ● ● ● ● ● ●

Inverter ● ● ● ● ● ●

HVAC ● ● ● ● ● ●

DC/DC ● ● ● ● ● ● ●

Oil Pump ● ● ● ●

BMS ● ● ● ● ●

* Advance information

Oil Pump

Inverter

• IPM Drive Interface

• Integrated IGBT Gate

Drive

CANBus Interface

• Digital Communications

• Status Control

Charger & Converters

IGBT Gate Driver

MOSFET Driver

Current/Voltage Sensing

Digital Interface

• Communications

• Wake-Up/Status Control

• Fault Feedback

CANBUS Interface

• Digital

Communications

• Status Control

Battery Management System

Battery Pack Monitoring

• Voltage/Temperature Sensing

• CANBus Communications

• Status Control

Battery Cell Management

• Cell Balancing

• Digital Communications

• Wake-Up/Status Control

• Fault Status Feedback

Analog Sensing

• Temperature/

Voltage Sensing

• Current sensing

Drive System

• IPM Drive Interface

• Integrated IGBT Gate

Drive

• Voltage/Current Sensing

• Digital Interface

• Communications

• Wake-Up

• Fault Feedback

Aircon Compressor / Heater

Inverter/Heater

• IPM Drive Interface

• Integrated IGBT Gate Drive

• Voltage Sensing

• IGBT Gate Drive

CANBus Interface

• Digital Communications

• Status Control

Page 11: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

12 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Gate Driver Selection for Inverter, DC/DC and Charger

Isolation

/ Power

Benefits < 10kW 10kW – 100kW - 250kW

• Flyback Converter

• Isolation

• Driver

•Distributed

power

architecture

•Better

performance

and lower

cost

• Isolation

• Driver

•Fully

compatible to

existing power

architecture

Application DC/DC, Charger Drive Systems

ACPL-38JT 2A Gate Drive, Desat Sensing, Fault Feedback

ACPL-34JT/344JT 2A Gate Drive, Desat Sensing Miller Clamp, UVLO Feedback

ACPL-32JT 2A Gate Drive Desat Sensing Miller Clamp

2W Flyback Controller

ACPL-K34T 200kHz MOSFET Driver

ACPL-31JT Smart MOSFET Driver

ACPL-33JT 2A Gate Drive Desat Sensing Miller Clamp

> 4W Flyback Controller

ACPL-K33T SiC MOSFET Driver

ACPL-312T 2A IGBT Gate Drive

Page 12: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

13 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Gate Driver Portfolio

Part Number

Features

Integration

Power Switching Device

IGBT

Basic

General Purpose

ACPL-312T

Tight Delay Control

ACPL-K33T

Smart

Protection + Power

ACPL-32JT ACPL-33JT

Protection Features

ACPL-34JT ACPL-38JT

MOSFET

Basic

Tight Delay Control

ACPL-K34T

Smart

Protection Features

ACPL-31JT

Part Number Working

Voltage

IO- / IO+ TPLH / TPHL TPLH - TPHL VCC2 Supply Miller

Clamp

UVLO /

Feedback

Desat /

Feedback

DC-DC Flyback

Controller

ACPL-312T 630V -2.5A / 2.5A 500ns / 500ns -350ns / 350ns 30V NA 12V / No NA NA

ACPL-K33T 1140V -2.5A / 2.5A 120ns / 120ns -40ns / 50ns 30V NA 12V / No NA NA

ACPL-K34T 1140V -2.5A / 2.5A 120ns / 120ns -40ns / 50ns 20V NA 8V / No NA NA

ACPL-31JT* 1230V -2.5A / 2.5A 250ns / 250ns -100ns / 15ns 20V 2A 10V / No 4V / Yes NA

ACPL-32JT 1230V -2.5A / 2.5A 250ns / 250ns -160ns / 60ns 20V 2A 12V / No 7V / Yes 20V

ACPL-33JT* 1230V -2.5A / 2.5A 250ns / 250ns -150ns / 150ns 16V 2.5A 12V / No 7V / Yes 16V

ACPL-34JT 1230V -2.5A / 2.5A 250ns / 250ns -150ns / 150ns 25V 2A 12V / No 7V / Yes NA

ACPL-344JT 1230V -2.5A / 2.5A 250ns / 250ns -150ns / 105ns 25V 2A 12V / No 7V / Yes NA

ACPL-38JT 1230V -2.5A / 2.5A 500ns / 500ns -350ns / 350ns 30V NA 12V / No 7V / No NA

Page 13: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

14 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Isolation Amplifier Selection

Digital Outputs

Differential

Analog Outputs

Interface 50A – 500A < 50A AC Voltage DC Voltage Temperature

Sensing Current sensing Voltage Sensing

ACPL-782T +/-200mV Input Range

2%

ACPL-C799T Sigma Delta Output

+/-50mV Current Sensor

1%

ACPL-C87BT / C87AT 2V Input Range

0.5% / 1%

ACPL-C797T Sigma Delta Output

+/-200mV Voltage Sensor 1%

Sample

MCLK

MDAT

SIGMA-DELTA MOD. /

ENCODEDECODE

VIN+

VIN-

+ -

+ -

VIN+

VIN-

VO+

VO-

Page 14: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

15 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Digital Optocoupler Selection

Up to 1414Vdc

(BUS/Truck)

Up to 560Vdc

(Passenger

Cars)

Isolation

Voltages

Up to 100kBd 100kBd – 1MBd 1MB – 15MBd

ACPL-M61T 10MBd

Open Collector Output SO5 Single

ACPL-M43T Wide Supply Range

1MBd Prop Delay < 1us Linear Response

Zero Off state power SO5 Single

ACPL-M72T 10MBd CMOS Output

Supply Current < 1.5mA SO5 Single

ACPL-M46T Wide Supply Range

1MBd Prop Delay < 0.5us

SO5 Single

ACPL-M49T Wide Supply Range

20kBd 4 pin configuration Linear Response

Zero off state power SO5 Single

ACPL-K43T Wide Supply Range

1MBd Prop Delay < 1us Linear Response

Zero Off state power SSO8 Single

ACPL-K71T 15MBd CMOS Output

Prop Delay < 32ns SSO8 Single

ACPL-K44T Wide Supply Range

Linear Response Zero Off state power

SSO8 Dual

ACPL-K49T Wide Supply Range

20kBd 4 pin configuration Linear Response

Zero off state power SSO8 Single

ACPL-K75T Supply Current < 1.5mA

SSO8 Dual

ACPL-K74T Supply Current < 1.5mA

SSO8 Dual

ACPL-K72T 10MBd CMOS Output

SSO8 Single

ACPL-M71T 15MBd CMOS Output

Supply Current < 1.5mA Prop Delay < 32ns

SO5 Single

Dual Channel

Uni / Bi-Directional

ACFL-5211T Wide Supply Range

Linear Response Zero Off state power SSO12 Bi-direction

ACFL-6212T Supply Current < 1.5mA

SSO12 Bi-direction

ACFL-6211T Supply Current < 1.5mA

SSO12 Bi-direction

ACFL-5212T Wide Supply Range

4 pin, Linear Response SSO12 Bi-direction

Page 15: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

16 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Schematic Block Diagram

Features

Qualified to AEC-Q100 Grade 1 Test Guidelines

-40OC to +125OC operating temperature range

2.5 A maximum peak output current

1.9 A Miller Clamp Sinking Current

Wide Operating Voltage: 12V to 25V

Propagation delay: 250ns (max.)

4V Desat sensing, hard turn-off for fast protection and Fault Feedback

Under Voltage Lock-Out protection (UVLO) with Feedback

>50kV/μs Common Mode Rejection (CMR) at VCM = 1500 V

High Noise Immunity

- Miller Current Clamping

- Direct LED input with low input impedance and low noise sensitivity

- Negative Gate Bias

Regulatory approvals:

- UL1577, CSA

- IEC/EN/DIN EN 60747-5-5

Half Bridge Evaluation Board Available

ACPL-31JT - Automotive 2.5 Amp MOSFET Gate Drive Optocoupler with Integrated Desat Sensing, Miller Current Clamping and Under Voltage Lock Out Feedback

Status – In Production

Page 16: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

17 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Channel 1: VGS (10V/div)

Channel 2: VDS (50V/div)

Channel 3: VDESAT (5V/div)

Channel 4: ID (100A/div)

Channel 1: VGS (10V/div)

Channel 2: VDS (50V/div)

Channel 3: VDESAT (5V/div)

Channel 4: Fault (5V/div)

VBUS = 100V

IDrain(peak)~120A

Hard shutdown

Overvoltage ~ 80V

Fault Feedback

Note:

• The short circuit test is conducted with MOSFET IPW65R110CFD (VDS rating=650V).

• There is no soft shutdown for ACPL-31JT, therefore it is recommended to add a TVS diode (D3T, D3B) between Drain and Gate for voltage clamping

protection if the MOSFET VDS rating is lower than the overvoltage observed.

ACPL-31JT Short Circuit Test Waveforms

Page 17: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

18 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

ACPL-344JT – IGBT Gate Driver with UVLO Feedback

- UVLO Feedback - Active Miller Clamping - Soft shutdown for short circuit protection.

- Half bridge evaluation board available with short circuit and 2 pulse test result.

4.7

k

0.1

u 20

20u

10u

uC

+ 5V LED2+

VE

VCC2

VEE2

VO

CLAMP_SS

VEE2 VEE1

NC

AN

CA

FAULT

DESAT VCC1

UVLO

NC

ACPL-M49T

ACPL-34JT/344JT

R

g

1

1

0

20u

2k

330p

1k

330

p

330

p 4.7

k

135

0.1

u

15V 8 – 18V

Rss

135

PWM_TOP

PWM_BOT

Vge

V/FLT

Vce

Ice

Short Circuit Test Waveforms

Page 18: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

19 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Key Features

• Automotive AEC-Q100 Qualification

• Creepage and Clearance: > 8mm

• Isolation Voltage: 5kVrms 1 minute

• Working Voltage: 1230Vpeak continuous

• Wide Operating Temperature: -40 ^C – 125^C

• Input Supply Voltage: 4.5 to 5.5V

• Regulated Output Voltage: 16V

• Integrated DC-DC Controller for Floating Power Supply

• IGBT Desat sensing,

• Programmable “soft” IGBT turn-off and Fault Feedback

• Under Voltage Lockout and Feedback

• Integrated Miller Clamping

• Worldwide Saftey Approval: UL, IEC, CSA

Benefit

• Distributed floating power supply architecture

• Less switching noise

• Smaller transformer

• Integrated fault protection

• Small size and board space saving

Applications

• IGBT Gate Driver for Traction Inverter

• Charger and HVAC

ACPL-33JT - Gate Driver with Flyback DC-DC Controller, Desat Over Current Protection, Miller Clamping and UVLO Feedback

• Status Update

• Preliminary Datasheet

• Engineering Samples: Available

Vin = 12V Battery

(6V – 24V)

ACPL-33JT

VCC2 = 16V

C1

Lp Ls Co Ro

LED2+

VCC2

VEE2

VEE2

VO

CLAMP

SS

PG

VEE1

AN

CA

FAULT

UVLO

DESAT VCC1

COMP

Rc

R2 R3

Rbuffer

C7 Cs Cc

C3

C4

C6

5V Reg

DC_5V

C8

Rg Q1

NVF3055L1

08

Q2

Rss

Q3

HV

uC

200k

22n 100p

10k 10k C8

PWM_Top

PWM_Bot

R4

R5 R6

Cin

RDesat

DDesat

IGBT

D2

D0

D1

Page 19: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

20 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

ACPL-32JT Compact Design with Integrated Flyback Controller

Features

• Integrated flyback controller

• Rail to rail driving output

• Negative Gate Biasing and Miller Clamp for gate noise rejection

• Adjustable Desat Sensing threshold through additional Desat Diode

• Soft shutdown timing can be adjusted by Rss

• Direct low impedance LED input, high dV/dt noise immunity

• Over current blanking time can be controlled through blanking capacitor

8 – 18 V 20V , 60mA~120mA

LED2+

VCC2

VEE2

VEE2

VO

VE

SW

VEE1

AN

CA

FAULT

UVLO

DESAT VCC1

COMP

uC

+ 5V

C1

Ls 220nF

2k Lp

470k

4.7k

4.7k

Rg

330pF 22nF

330pF

0.1uF

10

330pF

270

1k

330pF

20

ACPL-32JT

CLAMP_SS

10uF

20uF

20uF

15V

2k

HV Diode

Rss

10uF

Evaluation Board Available

Single Channel For Infineon Hybrid Pack 2

Page 20: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

21 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

• Main Features:

• Avago Automotive 2.5A Smart Gate Drive Optocoupler ACPL-33JT

• Integrated flyback DCDC controller

• External primary winding switch to increase driving power

• Rail to rail driving output

• Adjustable Desat Sensing threshold through additional Desat Diode

• Soft shutdown timing can be adjusted by Rss

• Direct low impedance LED input, high dV/dt noise immunity

• Over current blanking time can be controlled through blanking capacitor

ACPL-33JT Half Bridge Evaluation Board for HP2

Page 21: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

22 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

• Fuji M651 IGBT Driver Board

• 400A/650V IGBT

• Direct Mount to IGBT Module

• Gate Driver IC – Avago ACPL-32JT with integrated flyback DC/DC

controller

• +15/-5 V Distributed 2W Power Supply

• IGBT desat short circuit sensing and feedback with soft

shutdown capability

• Undervoltage lockout protection and feedback

• Voltage Sense – ACPL-C87AT provides isolated bus voltage sense

• Buffer-driven PWM gate driver input

• 5A peak buffer output

IGBT Driver Boards

• Fuji M652 IGBT Driver Board

• 600A/650V IGBT

• Direct Mount to IGBT Module

• Gate Driver IC – Avago ACPL-32JT with integrated flyback DC/DC

controller

• +15/-5 V Distributed 2W Power Supply

• IGBT desat short circuit sensing and feedback with soft

shutdown capability

• Undervoltage lockout protection and feedback

• Voltage Sense – ACPL-C87AT provides isolated bus voltage sense

• Buffer-driven PWM gate driver input

• 15A peak buffer output

Page 22: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

23 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Take the Risk out of

High Voltage Failure with Certified Broadcom Optocouplers

IEC 60747-5-5 Certified

Optocouplers are the only isolation devices that meet or exceed the IEC 60747-5-5 International Safety Standard for insulation and isolation. Stringent evaluation tests show Broadcom’s optocouplers deliver outstanding performance on essential safety and deliver exceptional High Voltage protection for your equipment. Alternative isolation technologies such as ADI’s magnetic or TI’s capacitive isolators do not deliver anywhere near the high voltage insulation protection or noise isolation capabilities that optocouplers deliver.

long-term reliability

http://www.avagotech.com/products/optocouplers/

Insulation

-Recognized Safety

Standard by IEC

Reliability

Insulation Material

Distance Through

Insulation (DTI)

ESD Surge Test

>15KV

EMI/EMC

Isolation (CMR)

Broadcom Optocouplers Magnetic Isolator Capacitive Isolator

IEC 60747-5-5 Approval

Certify to “Reinforced”

insulation

IEC 60747-5-5 Not Approved

Compliant to “Basic”

insulation only

IEC 60747-5-5 Not Approved

Compliant to “Basic”

insulation only

High reliability to High Voltage

lifetime Test, proven

functional after 168hrs at

3.75kV test

Fail at 8.5hrs at 2.5kV High

Voltage test

Limited field data to prove

Silicone / Kapton

Polymide

SiO2

0.08 to 1mm (-> up to 2mm)

( >10 times DTI)

0.02mm

0.008mm

Withstands

Fails

Fails

Transmit signal through light

and thus immune to EMI

Magnetic solution results in

electromagnetic radiation and

subjected to electromagnetic

interference (EMI)

Transferred through capacitive

is subjected to electromagnetic

interference (EMI)

High Common Mode

Transient (dV/dt) does not

damage Optocoupler.

High Common Mode Transient

(dV/dt) may cause latch-up

or permanent damage

Capacitive reactance is inverse

proportional to frequency,

resulting in high pass for high

frequency noise

Isolation Technology Comparison

Page 23: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

24 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. | Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved.

A Complete Safety Isolation Solution for Electric Vehicle Charging Station Designs

Page 24: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

25 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

EV Charging Station Value Chain

• Charging station suppliers fulfills an important supportive activity.

• The EV user can choose products and services according to his needs and preferences; which energy source, who to produce it, who to distribute it, etc.

Charging station suppliers

EV Users Electricity

Materials and components suppliers such as Broadcom

Optocouplers

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26 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

On-board Charger and Charging Station

Reference: ABB White Paper; SAE International.

AC/DC Charging Electrical Ratings

Charge

Method

Nominal

Supply

Voltage

Maximum

Continuou

s Current

Output

Power

Estimated Charge

Time1

AC

Level 1

120 V AC

Supply, 1-

phase

12 A 1.4 kW 17 Hrs (OBC, SOC2 –

20% to full) 16 A 1.9 kW

AC

Level 2

208-240 V

AC Supply, 1-

phase

80 A Up to 19.2

kW

SOC – 20% to full:

7 Hrs (3.3 kW OBC);

3.5 Hrs (7 kW OBC);

1.2 Hrs (20 kW OBC).

DC

Level 1

200-500 V

DC (EVSE

Output)

80 A Up to 40 kW 1.2 Hrs (SOC – 20% to

100%, 20 kW off-board

charger)

DC

Level 2

200-500 V

DC (EVSE

Output)

200 A Up to 100

kW

20 min (SOC – 20% to

80%, 45 kW off-board

charger) Notes:

1) For ease of discussion, only BEV (battery electric vehicle) examples are listed.

2) SOC (state of charge) is the equivalent of a fuel gauge for the battery pack in a BEV. 0% SOC

means the battery pack is completely discharged; and 100% SOC means it’s fully charged.

3) Rated Power is at nominal configuration operating voltage and coupler rated current

4) Ideal charge times assume 90% efficient chargers, 150W to 12V loads and no balancing of Traction

Battery Pack.

5) BEV (25 kWh usable pack size) charging always starts at 20% SOC, faster than a 1C rate (total

capacity charged in one hour) will also stop at 80% SOC instead of 100%.

AC charging • Every vehicle has an

on-board charger. • Limited power rating,

slow charging. • Requires Automotive-

grade components

DC charging • Infrastructure investment is

shared with hundreds of users.

• Large power rating, fast charging.

• Industrial-grade components suffice

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27 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Global EV Charging Station Market to Grow to 12.8 Million Units in 2020

+ + = 12.8M

+ + = 1M

Source: IHS.

0

2

4

6

8

10

12

14

2014 2015 2016 2017 2018 2019 2020

Un

its

(Mil)

Global EV Charging Station Cumulative

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31 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Worldwide EV Charging Station Development Tesla Supercharger

Today: 443 Supercharger stations with 2,465 Superchargers

2016 Est. 4000 superchargers.

2020 Est. 8000 superchargers.

US Charging Stations (2015) 29,170 charging outlets in the United States

EU Fast Charging Corridor plan

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32 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

China EV Charging Station Plan

• Till 2014, new energy vehicles cumulative 120ku; charging piles 30ku

cumulative. Fulfilling only ¼ of the need based on 1:1 ratio.

• By 2020, project new energy vehicles cumulative 5Mu; charging piles

4.5Mu cumulative. • Average selling price 20k RMB each.

• TAM: 90 Bil RMB = 14.1 Bil USD for 2015-2020.

Source: 中国汽车工业协会, “国标8月修订出台 新能源充电桩标准统一,” 2015年08月03日 09:13 来源:华夏时报

http://www.caam.org.cn/biaozhuidongtai/20150803/0905167535.html

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34 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

DC Fast Electric Vehicle Charging Station – Broadcom provides complete isolation solution to ensure safety

Recommended Optocouplers Voltage sensor – ACPL-

C87B/C87A/C870

Current sensor – Analog output

ACPL-C79B/C79A/C790; digital

output ACPL-C797/796J/798J

MOSFET gate drivers – ACPL-

W345/346; IGBT/SiC/GaN MOSFET

gate drivers – ACPL-W347/349

Smart IGBT gate drivers for large

power charging stations – ACPL-

339J/336J/337J

CAN Bus isolation – 5/10 MBd

ACPL-W21L/W61L, 2X; 25 MBd

ACSL-7210, 1X

+ –

Voltage Sense

ACPL-C870

Controller

+ –

Current Sense

ACPL-C790

Current Sense ACPL-

C790, 4X

+ – + –

+ – Current Sense ACPL-C790

- +

Charging Station Control Center

+ –

CAN Bus

ACPL-W61L, 2X PWM PWM PWM

- +

Gate Drive

ACPL-W347/ W349,

6X Voltage Sense

ACPL-C870

CAN Bus

ACPL-W61L, 2X

Safety Isolation Barrier

Safety Isolation Barrier

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35 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Recommended Optocouplers for EV Charging Stations

The needs of Optocouplers in EV Charging system:

• Need gate drive optocoupler to drive IGBT/MOSFET

Power MOSFET gate drivers ACPL-W346/345, ACPL-

W347/349, ACPL-335J [ ]

Smart gate drivers ACPL-339J/336J/337J

• Need voltage, current and temperature sensor in inverters, DCDC

converters

Voltage/Temperature Sensor ACPL-C87B/C87A/C870

Current Sensor ACPL-C79B/C79A/C790

• CAN bus communication requires high CMR Digital Optocouplers

CAN Bus isolation 5/10 MBd ACPL-W21L/W61L

High speed communication 25 MBd ACSL-7210

• Broadcom provides a complete range of isolation products

to meet the market needs.

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36 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

ACPL-335J 2.5A MOSFET Gate Drive Optocoupler with Integrated Over Current Sensing, Active Miller Clamping, Fault and UVLO Status Feedback Key Features for MOSFET 2.5 A max. peak output current

10V UVLO Threshold for MOSFET

3.9V Over Current Threshold for MOSFET

Adjustable blanking time for fast over current

detection

Fast over-current response time

Fast Drive with 110ns typ. propagation delay

CMR > 50kV/µs min for high freq PWM

Integrated 2A Active Miller clamping

Creepage and Clearance > 8mm

Worldwide Safety Approval:

IEC/EN/DIN EN 60747-5-5, VIORM = 1230

VPEAK

UL 1577 (5000 VRMS/1 min.)

CSA notice #5

Functional Diagram

MOSFET Driving Application : High Voltage, High

Frequency • EV Charging Stations

• ESS Battery Chargers

• PV Inverters

• Power Supplies

• High Frequency Drives

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38 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Evaluation Boards

ACPL-H342/K342 Gate Driver with Active Miller Clamp

ACPL-339J MOSFET Buffer Interface Gate Driver

ACPL-P346/W3436 MOSFET Gate Driver

ACPL-P343/W343 IGBT Gate Driver

Basic Gate Drive Optocoupler

ACNT-H313 High Creepage/Clearance/Insulation

Voltage Gate Driver

Smart Gate Drive Optocoupler

ACPL-337J Highly Integrated Gate Driver

ACPL-302J Gate Driver with DC-DC controller

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39 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Reference Designs

• Cree 2nd Gen SiC MOSFET C2M0080120D. ACPL-W346 High Speed Basic Gate Driver and ACPL-339J Gate Driver with DESAT Protection

• Fuji Electric AT-NPC 3 Level 4-in-1/12-in-1 IGBT Modules. ACPL-339J/332J Gate Driver with DESAT Protection

• ST SiC MOSFET SCT30N120. ACPL-H342 Gate Driver and ACPL-C797/796J Sigma-Delta Modulator

• Mitsubishi “Mega Power Dual” Series IGBT modules. CM1800DY 1800A/1700V. ACPL-339J Gate Driver with DESAT Protection

• Altera Multi-Axis Motor Control Series. ACPL-798J Sigma-Delta Modulator with LVDS interface. ACPL-W61L 10MBd Digital I/O logic isolation

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40 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Tutorial Webinars

光电耦合隔离放大器在光伏发电系统中的灵活应用

双路输出的智能IGBT

驱动光耦 ACPL-339J

碳化硅功率器件(SiC

MOSFET)门驱动光耦

设计完整和极具成本效益的门驱动方案

车规级光耦ACPL-32JT

驱动三相全桥IGBT模块

http://www.avagotech.com/support/resources/video-webinar-library#webinars

Page 35: TechShanghai2016 - Reliable automotive-grade Isolators for new energy vehicles

41 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

More Technical Evaluation Tools

• Spice Models

• Power and Thermal Modeling User inputs per application requirements

Datasheet specifications

Calculated outputs

Parameters Symbol Unit Value Comments

LED Driving Current ILED mA 16

LED Forward Voltage VF V 1.95 Datasheet Max

Average LED Switching Duty Cycle Duty % 80% Application Average

LED Power Dissipation Pe W 0.02496 = ILED * VF * Duty

Maximum Input IC Supply Current ICC1 mA 6 Application

Input IC Supply Voltage VCC1 V 5.5 Datasheet recommended Max

Input IC Power Dissipation Pi W 0.033 = ICC1 * VCC1

Output IC Supply Voltage VCC2 V 30 Datasheet

Maximum Output IC Supply Current ICC2max mA 7.5 Datasheet Max

MOSFET Gate Charge at Supply Voltage Qg uC 1 IGBT Datasheet per application or = VCC2 * Cg

LED Switching Frequency fpwm KHz 10 Application

Absolute Maximum Output Current Iomax A 4 Datasheet

Minimum High Side Output Impedance Rds,ohmin Ohm 0.5 Datasheet

Minimum Low Side Output Impedance Rds,olmin Ohm 0.2 Datasheet

Minimum Gate Resistance charging Rghmin Ohm 7 = ( VCC2 - VEE ) / Iomax - Rd,soh(min)

Minimum Gate Resistance charging Rglmin Ohm 7.3 = ( VCC2 - VEE ) / Iomax - Rd,sol(min)

Gate Charging/Discharging Resistance Rg Ohm 7.3 >= Rghmin || Rglmin

Maximum High Side Output Impedance Rds,ohmax Ohm 4.50 Datasheet Max

Maximum Low Side Output Impedance Rds,olmax Ohm 3.60 Datasheet Max

High Side Switching Power Dissipation Phs mW 57.20 = (VCC2*Qg*fpwm) * Rds,ohmax / (Rds,ohmax + Rg)/2

Low Side Switching Power Dissipation Pls mW 49.54 = (VCC2*Qg*fpwm) * Rds,olmax / (Rds,olmax + Rg)/2

Output IC Power Dissipation Po W 0.3317 =VCC2*ICC2max + Phs+Pls

Thermal Coefficient Between

LED and Input IC Aei °C/W 35.4

LED and Output IC Aeo °C/W 33.1

Input and Output IC Aio °C/W 25.6

LED and Ambient Aea °C/W 176.1

Input IC and Ambient Aia °C/W 92

Output IC and Ambient Aoa °C/W 76.7

Ambient temperature Ta °C 95 Application measurement

LED Junction Temperature Te °C 111.5 Te = AeaPe + AeiPi + Aeo Po + Ta

Input IC Junction Temperature Ti °C 107.4 Ti = AeiPe + AiaPi + Aio Po + Ta

Output IC Junction Temperature To °C 122.1 To = AeoPe + AioPi + Aoa Po + Ta

Absolute Max. Junction Temperature for LED and IC Tj °C 125 Datasheet

ACPL-337J

• IGBT Gate Current Calculator

Download: http://www.avagotech.com/products/optocouplers/spicemodels/

Contact Broadcom FAE for this

tool.

Contact Broadcom FAE for this

tool.

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42 Broadcom Limited Proprietary and Confidential. © 2016 Broadcom Limited. All rights reserved. |

Technical Response Contacts

• Broadcom online technical support: http://www.avagotech.cn/pages/contact/request_tech_support/

• Asia-Pac Technical Response Centers:

• China/HK: +86-755-82072628;

• Taiwan: +886-2-87712290;

• To find out more about Broadcom Optocouplers: http://www.avagotech.com/pages/en/optocouplers_plastic/

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