steval-ill022v1 solar-led streetlight controller with … sheets/st...photovoltaic or pv module)....

September 2010 Doc ID 14469 Rev 2 1/18

UM0512User manual

STEVAL-ILL022V1 solar-LED streetlight controller with 25 W LEDlamp driver and 80 W battery charger based on the STM32F101Rx

IntroductionThe solar-LED streetlight controller consists of one 80 W battery charger and one 25 W LED driver. During the daytime, when there is sufficient sunlight, the charger converts the electricity from the solar panel and charges the battery. At nighttime, the battery powers on the LED lamp as streetlight.

If it is rainy or cloudy for several continuous days, the battery will gradually run out of power. The controller then resorts to the AC mains supply to power on the LED until the battery has had time to fully charge again.

Main features of the solar-LED streetlight controller

■ Maximization of electricity conversion efficiency from solar panel by way of maximum power point tracker (MPPT)

■ Automatic day/night/weather detection

■ Automatic battery/mains switch over

■ Constant current control for LED lamp

■ Battery charge control

■ Optional LED lighting duration mode

■ Easy system monitoring via debug LED indicators

■ Full protection function for OTP, OCP and UVP

Figure 1. Snapshot of the solar-LED streetlight controller

www.st.com

http://www.st.com

Contents UM0512

2/18 Doc ID 14469 Rev 2

Contents

1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4 Board operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1 Board description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2 Controller characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4 Operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.1 Hardware installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2 Recommended peripheral parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2.1 Solar panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2.2 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2.3 LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2.4 Mains switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5 DIP selection and LED indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5.1 DIP selection switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5.2 LED indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6 Schematic and bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

UM0512 List of tables

Doc ID 14469 Rev 2 3/18

List of tables

Table 1. Description of functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Table 2. Recommended electrical parameters for solar panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Table 3. Recommended electrical parameters for battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Table 4. Recommended electrical parameters for LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Table 5. Symptoms and corrective action. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Table 6. DIP switch for LED lamp light-on time selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Table 7. LED indicator and error message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Table 8. BOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Table 9. Pin strip header. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Table 10. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Safety instructions UM0512

4/18 Doc ID 14469 Rev 2

1 Safety instructions

Warning: The demonstration board must be used in a suitable laboratory by qualified personnel only, familiar with the installation, use and maintenance of electrical systems.

1.1 Intended useThe demonstration board is a component designed for demonstration purposes only, and shall not be used for domestic or industrial installations. The technical data and information concerning the power supply and working conditions must be taken from the documentation provided with the delivery, and must be strictly observed.

1.2 InstallationThe installation instructions of the demonstration board must be taken from the present document and strictly observed. The components must be protected against excessive strain. In particular, no components are to be bent, or isolating distances altered, during the transportation, handling or use. The demonstration board contains electro-statically sensitive components that are prone to damage through improper use. Electrical components must not be mechanically damaged or destroyed (to avoid potential risks and health injury).

1.3 Electrical connectionApplicable national accident prevention rules must be followed when working on the mains power supply. The electrical installation must be completed in accordance with the appropriate requirements (e.g. cross-sectional areas of conductors, fusing and PE connections).

1.4 Board operationA system architecture that supplies power to the demonstration board must be equipped with additional control and protective devices in accordance with the applicable safety requirements (e.g. compliance with technical equipment and accident prevention rules).

UM0512 General description

Doc ID 14469 Rev 2 5/18

2 General description

The solar-LED streetlight controller is the key element of the system, also comprising the solar panel, battery and LED streetlight (lamp). Figure 2 shows the structure of the system.

Figure 2. System block diagram

Each block’s function is described below.

● The sunlight delivers pockets of photons (solar energy) to the solar panel (also called photovoltaic or PV module). The photons (energy) are absorbed by the PV module and electrons are released.

● The electrons flow along the metal contact of the PV module and create electricity. The battery charger then converts the electrical energy and charges the battery.

● The battery stores the electricity supplied by the battery charger. The controller monitors the status of the battery.

● The LED lamp (LED streetlight) is activated by the LED driver. The LED light controller monitors the system and controls the light-on and light-off in daytime and nighttime.

● When the battery goes low, the controller sends an enable signal to the mains switch and the AC offline power supply is enabled.The AC offline power supply (not covered in this document) acts as a backup source to power the LED streetlight.

The solar-LED streetlight controller plays the key role in the system for electricity (solar energy) storage control and LED lamp light-on/-off control.

Hardware description UM0512

6/18 Doc ID 14469 Rev 2

3 Hardware description

3.1 Board descriptionTable 1 describes the various functions of the controller’s demonstration board. Figure 3 provides the top view of the board.

Table 1. Description of functions

Category Index Designator Description

System connectors

1 P1 Solar panel connector

2 P4 Battery temperature sensor connector (connected to NTC)

3 P5 LED lamp temperature sensor connector (connected to NTC)

7 P6 Mains enable output

10 P3 LED lamp connector

11 P2 Battery connector

HMI

4 SW1~SW4 DIP switch (1): mode selection

5 LED1~LED4 Debug indicators(2)

6

LED5, LED6

LED 5 (red) ON: battery charged

OFF: battery not charged

LED 6 (white) ON: battery full

OFF: battery not full

9 PB1 Reset

ICP interface 8 CN1 JTAG

1. Refer to Table 6 for dip selection mapping.

2. Refer to Table 7 for debug message mapping.

UM0512 Hardware description

Doc ID 14469 Rev 2 7/18

Figure 3. Top view of demonstration board

3.2 Controller characteristicsThe controller has the following characteristics.

● Battery operation voltage:

– 13.8 V max./11 V min. for 12 V system

● Charger:

– input voltage range ≤ 50 VDC

– output power ≤ 80 W

● LED lamp driver:

– output current 2.45 A

– output power ≤ 25 W

● Dimensions:

– 113 mm x 98 mm x 50 mm

Operating instructions UM0512

8/18 Doc ID 14469 Rev 2

4 Operating instructions

4.1 Hardware installationThe following steps are to install the hardware.

1. Connect an NTC resistor (battery temperature sensor) to P4 (refer to Section 3.1).

2. Connect an NTC resistor (LED lamp temperature sensor) to P5 (refer to Section 3.1).

3. Connect the mains switch controller enable input to P6 (refer to Section 3.1).

4. Set SW1~SW4 according to DIP selection mapping table (Table 6).

5. Connect P3 (refer to Section 3.1) to LED lamp.

6. Connect P2 (refer to Section 3.1) to battery.

7. Connect P1 (refer to Section 3.1) to solar panel.

4.2 Recommended peripheral parameters

4.2.1 Solar panel

4.2.2 Battery

4.2.3 LED

Table 2. Recommended electrical parameters for solar panel

Parameters Symbol Typ Unit Condition

Maximum power Pmax 80 W

Irradiance: 1000 W/m2

Module temperature: 25°C

Maximum power voltage Vpm 17.8 V

Maximum power current Ipm 4.52 A

Open circuit voltage Voc 21.82 V

Short circuit current Isc 5.01 A

Module efficiency ηm 13.42 %

Table 3. Recommended electrical parameters for battery

Parameters Typ Unit

Nominal capacity 50 Ah

Nominal voltage 12 V

Table 4. Recommended electrical parameters for LED

Parameters Typ Unit

Nominal power 25 W

Nominal current 2.45 A

UM0512 Operating instructions

Doc ID 14469 Rev 2 9/18

4.2.4 Mains switch

When the battery is low, a high logic level output is generated by the MCU, which then enables the mains power.

4.3 Troubleshooting

Table 5. Symptoms and corrective action

Symptom Corrective action

None of the LED(s) is powered on. The LED(s) include LED lamp, debug LED and battery status LED

– Set-up the system as per the hardware installation procedure described in Section 4.1.

– Check the mains enable signal on P6. A high logic level indicates that the battery voltage is too low to power the LED light. This status will persist until the battery is fully charged.

– Reset the system by pressing the reset button (PB1).

– Check the battery type and polarity. Only 12 V battery can be applied to this system. If the battery has previously been connected reversely, replace the fuse (F1) with a new one.

– Check that the LED lamp is available.

Battery status LED fails to light during daytime

– Set-up the system as per the hardware installation procedure described in Section 4.1.– Reset the system by pressing the reset button (PB1).

– Check that it is not too dark to enable the solar panel’s output.

– Check that the solar panel is available.

Dim LED lamp– Try to cool down the LED lamp.

– Check that the LED lamp’s lifecycle is still valid.

DIP selection and LED indicator UM0512

10/18 Doc ID 14469 Rev 2

5 DIP selection and LED indicator

5.1 DIP selection switchThe DIP switches DIP1, DIP2, DIP3 and DIP4 are used to define the LED lamp’s on time after the "switch on" signal has been received from the MCU. Table 6 describes the jumper positions of each switch. The positions 'L' and 'H' are shown in Table 1.

5.2 LED indicatorThe demonstration board has four LED indicators, LED1, LED2, LED3 and LED4, which are used to indicate any error messages during operation. Table 7 describes each type of error message. The messages are there to assist technicians in their troubleshooting and maintenance tasks.

Table 6. DIP switch for LED lamp light-on time selection

Status DIP 1 DIP 2 DIP 3 DIP 4 Mode description

1 L L L L Switch on LED for 5 minutes, then turn-off

2 H L L L Switch on LED for 2 hours during nighttime

3 L H L L Switch on LED for 4 hours during nighttime

4 H H L L Switch on LED for 6 hours during nighttime

5 L L H L Switch on LED for 8 hours during nighttime

6 H L H L Switch on LED for 10 hours during nighttime

7 L H H L Switch on LED for 12 hours during nighttime

8 H H H L Always switch on LED

9 - - - H Always switch on LED at nighttime

Table 7. LED indicator and error message

LED 1 LED 2 LED 3 LED 4 Error message

No error

Battery charger overheat

Battery overheat

LED driver overheat

LED overheat

Incorrect solar panel polarity

UM0512 DIP selection and LED indicator

Doc ID 14469 Rev 2 11/18

Battery over-voltage or under-voltage

Battery overcurrent

LED over-voltage

Abnormal LED driving current

Short-circuit in LED driver

Table 7. LED indicator and error message (continued)

LED 1 LED 2 LED 3 LED 4 Error message

Schematic and bill of materials UM0512

12/18 Doc ID 14469 Rev 2

6 Schematic and bill of materials

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1uF

R16

10

R27

1.2K

R99

1K

R95

10K

C38

1uF

4

2

13 5

GN

D

POS

OU

TN

EG

VCC

U4

TS39

1ILT

GN

D

GN

D

GN

D

R26

10

12V

3

1

2

Q12

MM

BT

3

1

2

Q14

BC80

7

R96

47K

12V

C74

1uF

R22

10

R50

1.2K

R100

1K

R97

10K

C45

1uF

4

2

13 5

GN

D

POS

OU

TN

EG

VCC

U8

TS39

1ILT

GN

D

GN

D

GN

D

VDR

VDR

Vba

21

3

Q10

TYN

616R

G

GN

DR8

0.2

C75

22uF

C76

22uF

C9 22uF

12

LD6

Gre

en

R106

330

Mai

ns_E

nabl

eBA

T_FU

LL

15

24

L2 39uH

2 31

A

8 4

U1A

LM25

8D

5

67 B

84

U1B

LM25

8D R108

1K

R107

1K

GN

DR1

0920

KR1

1110

K

R110

10K

R112

10K

C83

100p

F

2 31

A

8 4

U5A

LM25

8D

5

67B

84

U5B

LM25

8D

R116

1K

R115

20K

GN

D

GN

D

R113

10K

R114

10K

R117

10K

U7V

CC

U7V

CC

GN

D

12V

U1V

CC

U1V

CC

GN

D

U5V

CC

U5V

CC

GN

D12

P6 CON

_B

GN

D

R105

10K

R118

10K

R102

560

R42

560

1 2

P1 Sola

r Cel

ls

12

P2Ba

tter

y

1 2

P3 LED

R104

10K

R103

1K

R82

10R8

510

R86

10

R87

10R9

010

R92

10R9

410

C61

330n

F

C63

330n

F

C69

330n

F

C70

330n

F

C71

330n

F

C72

330n

F

R119

10K

R120

10K

R121

10K

567

1 2 3

8

4

GndVo Gnd

Vin

NC

InhibitGndGnd

U11

L493

1ABD

33-T

R

C80

22uF

C44

22uF

C79

100n

F

C43

100n

F

1 2

D5

SMA

J24A

-TR

1 2 3 45678

S1 SW-D

IP4

R125

10K

R124

10K

R123

10K

R122

10K

R32

10K

NTC

R88

10K

NTC

UM0512 Schematic and bill of materials

Doc ID 14469 Rev 2 13/18

Table 8. BOM

Reference Value / generic part number Package /class

B1 One way 6x6 mm (SMD), 4.3 mm(H), tactile switch

C1, C6 1 µF (1210), 100 V, ceramic capacitor

C2, C3, C12, C14, C24, C36, C39, C41, C42, C43, C46, C48, C49, C50, C51, C52, C56, C57, C58, C60, C62, C65, C66, C67, C68,

C77, C79

100 nF (0603), 50 V, ceramic capacitor

C4, C5, C13 470 µF 63 V, Al-cap electrolytic capacitor

C7, C8, C35, C38, C45, C53, C73, C74

1 µF (0805), 25 V, ceramic capacitor

C9, C22, C34, C44, C75, C76, C80 22 µF 50 V, Al-cap electrolytic capacitor

C10, C11, C25, C26 220 pF (0805), 50 V, ceramic capacitor

C15, C20 1 µF (1206), 50 V, ceramic capacitor

C17 560 pF (0603), 50 V, ceramic capacitor

C18, C19, C30, C33 220 µF 50 V, Al-cap electrolytic capacitor

C23, C59, C61, C63, C69, C70, C71, C72

330 nF (0805), 50 V, ceramic capacitor

C27, C29, C32, C64, C83 100 pF (0603), 50 V, ceramic capacitor

C28 220 pF (0603), 250 V, ceramic capacitor

C47 10 µF (3528-21), 16 V, tantalum

C54, C55 20 pF (0603), 50 V, ceramic capacitor

CN1 20-way Box header (Right angle mounting), JTAG connector

D1, D11, D13, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30, D31, D32,

D33, D34, D35, D36, D37

BAT46JFILM (SOD323), small signal Schottky diode

D2, D3, D12 15 V (SOD 80C), Zener diode

D4, D10 STPS20H100CFP (TO-220FPAB), power Schottky rectifier

D5, D9 SMAJ24A-TR(SMA or DO-214AC), 24 V 400 W

TransilTM (TVS)

D7 3.9 V (SOD 80C), Zener diode

D8 STPS1H100A(SMA or DO-214AC), power Schottky

rectifier

D14 STPS2045CFP (TO-220FPAB), power Schottky rectifier

D16 STPS1L60A(SMA or DO-214AC), power Schottky

rectifier

F1 10 A(2.54 x 7.2 mm, axial lead), 251 series

fuse

JP1 (see Table 9) 0.64x0.64 mm, 2 way 2.54 mm pitch, pin strip header


14/18 Doc ID 14469 Rev 2

L2 (see Table 9) 39 µH Inductor

L5, L6 600 Ω @ 100 MHz(0603), Chip ferrite bead, 25%, 200mA

max.

LD1, LD2, LD3, LD4 80 mcd, yellow (0603), LED

LD5 45 mcd, red (3.0, diffused, radio lead), LED

LD6 10 mcd, green (3.0, undiffused, radio lead), LED

P1, P2, P3 Terminal block 2 Terminal, pitch 7.5mm

P4, P5, P6 Header, 2 pin HDR1x2, pitch 2.54mm

Q1 STP40NF10 (TO-220), N-channel MOSFET

Q2, Q4 STP75NF75FP (TO-220FP), N-channel MOSFET

Q3, Q5, Q6, Q7, Q11, Q12 MMBTA42 (SOT-23), NPN bipolar transistor

Q8, Q9, Q13, Q14 BC807 (SOT-23), PNP bipolar transistor

Q10 TYN616RG (TO-220AB), Triac

R1, R2, R3, R4, R9, R17, R18, R19, R20, R46, R47, R55

0.1 Ω (1206), 1%, resistor

R5, R7, R10, R12, R15, R16, R22, R23, R24, R26, R28, R31, R40,

R53, R10110 Ω (0805), 1%, resistor

R6, R13, R29 10 kΩ (0805), 5%, resistor

R8 0.2 Ω (Axial lead), cement, 2W, resistor

R11, R45, R48, R49, R59, R60, R61, R62, R63, R64, R65, R67,

R69, R95, R97, R104, R105, R110, R111, R112, R113, R114, R117, R118, R119, R120, R121, R122,

R123, R124, R125

10 kΩ (0603), 5%, resistor

R14, R27, R50 1.2 kΩ (0805), 5%, resistor

R21, R70, R71, R72, R73, R74, R106

330 Ω (0603), 5%, resistor

R25 1.8 kΩ (0603), 5%, resistor

R30, R33, R54 33 mΩ (1210), 1%, resistor

R32, R88 NTC, 10 kΩ (0805), NTC resistor

R34, R107, R108, R116 1 kΩ (0603), 1%, resistor

R35 24 Ω (1206), 5%, resistor

R36, R41 10 kΩ (0603), 1%, resistor

R37 12 kΩ (0603), 1%, resistor

R38, R39 4.7 kΩ (0603), 5%, resistor

R102 560 Ω (1206), 5%, resistor

Table 8. BOM (continued)


UM0512 Schematic and bill of materials

Doc ID 14469 Rev 2 15/18

Note: STM32F101R4, STM32F101R6, STM32F101R8, STM32F101RB, STM32F101RC STM32F101RD and STM32F101RE are all equivalent for the purpose.

\

R43 9.1 kΩ (0603), 1%, resistor

R44, R89, R91, R93 3.3 kΩ (0603), 1%, resistor

R51 330 kΩ (0603), 5%, resistor

R52 120 Ω (0603), 5%, resistor

R56, R58, R96 47 kΩ (0603), 5%, resistor

R57 3.3 kΩ (0603), 5%, resistor

R66 1 MΩ (0603), 1%, resistor

R68 1.8 kΩ (0603), 1%, resistor

R75 150 kΩ (0805), 1%, resistor

R76, R78, R81, R84 10 kΩ (0805), 1%, resistor

R77, R80 82 kΩ (0805), 1%, resistor

R79, R82, R85, R86, R87, R90, R92, R94

10 Ω (0603), 5%, resistor

R83 39 kΩ (0805), 1%, resistor

R98, R99, R100, R103 1 kΩ (0603), 5%, resistor

R109, R115 20 kΩ (0603), 1%, resistor

S1 DIP switch 4 Position DIP Switch

T1 (see Table 9) 33 µH EER25.5, transformer

T2 (see Table 9) 1 mH Driver transformer

U1, U5 LM258D(SO8 narrow), dual operational

amplifiers

U2, U4, U8 TS391ILT (SO), single voltage comparator

U3, U9 TSC101AILT (SO), current sense IC

U6 L78L12ABD-TR (SO8 narrow), positive voltage regulator

U7 LM193D (SO8), dual voltage comparator

U10 STM32F101RXT6 (LQFP64), 32-bit microprocessor

U11 L4931ABD33-TR (SO8 narrow), linear regulator

X1 8 MHz (3 x 8), crystal oscillator


Table 8. BOM (continued)



16/18 Doc ID 14469 Rev 2

Table 9. Pin strip header

Figure Description

Accessory for JP1 M20 series jumper socket

L2

– 1: 39 µH +/- 4% (W1//W2 and twisted)

– 2: Winding 1: pin 1 to pin 5 (18 turns CCW)– 3: Winding 2: pin 2 to pin 4 (18 turns CCW)

– 4: Wire gage: AWG31*20

– 5: Core: EER28-Z-PC40– 6: Bobbin: BEER28-1110CPFR

T1

– 1: 33 µH +/- 4% (W1+W3 at 50 kHz, 1 Vrms)– 2: Leakage < 0.1 µH (W2 short-circuit)

– 2: Winding 1: pin 1 to pin 5 (5 turns CCW)


– 4: Wire gage: AWG31*20

– 5: Core: EER28-Z-PC40– 6: Bobbin: BEER28-1110CPFR

T2– 1: 1 mH (W1+W3 at 50 kHz, 1 Vrms)

– 2: Leakage < 10 µH (W2 short-circuit)– 3: No air-gap is required

– 2: Winding 1: pin 1 to pin 2 (17 turns CCW)


– 4: Wire gage: AWG31

– 5: Core: EE10/11-Z-PC40

– 6: Bobbin: BE10-118CPSFR

UM0512 Revision history

Doc ID 14469 Rev 2 17/18

7 Revision history

Table 10. Document revision history

Date Revision Changes

08-Jan-2010 1 Initial release

28-Sep-2010 2

– Changed: connectors1: P1: solar panel connector

2: P2: battery connector

3: P3: LED lamp connector 4: SW1~SW4: mode selection DIP switch

– Battery use only 12VDC type

– Figure 1 changed due to the connectors outline changed– Re-new the connectors' location in Figure 3 which is based on the

description in Table 1– Figure 4, the schematic is updated

– Table 8, the BOM is updated

UM0512

18/18 Doc ID 14469 Rev 2

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