ST EVAL-L99H02XP Manuel utilisateur

Introduction

The EVAL-L99H02XP is an evaluation board designed to control 4 external N-channel MOS transistor in bridge configuration for

DC-motor driving in automotive applications.

EVAL-L99H02XP Evaluation board

UM2921

User manual

UM2921 - Rev 1 - November 2021

For further information contact your local STMicroelectronics sales office.

www.st.com

1EVAL-L99H02XP board

The EVAL-L99H02XP is composed by a motherboard and a daughterboard on which is pre-assembled the EVAL-

L99H02XP (see the Figure 1). The system features an enhanced power management power supply functionality

including various standby modes.

The motherboard, based on STM8 microcontroller, provides the logic section for monitoring and driving the

EVAL-L99H02XP assembled in the daughterboard.

With the aim to make the board usage and setting simpler, STM provides a dedicated Graphic User Interface

(GUI). This enables the user to set EVAL-L99H02XP parameters and at the same time it shows real time device

information.

Figure 1. EVAL-L99H02XP

UM2921

EVAL-L99H02XP board

UM2921 - Rev 1 page 2/18

2Hardware description and setup

This section provides a description of the main components of this evaluation kit, giving instruction for a quick

setup of the system.

2.1 Components description

The evaluation kit consists of two main components:

• 1 Motherboard based on STM8A microcontroller, interfacing host PC with daughterboard. The

communication with the PC is established through isolated USB.

• 1 Daughterboard assembling EVAL-L99H02XP.

The daughterboard with EVAL-L99H02XP and the motherboard are already properly plugged provided.

Figure 2. EVAL-L99H02XP block diagram

L99H02XP

2.2 Motherboard schematic

A universal motherboard is used to control and drive the daughterboard containing the EVAL-L99H02XP. The

motherboard has the following functions:

• USB-to-UART conversion: a FT232RL USB to serial UART interface is used to convert the data from the

GUI, in the PC, in commands that are processed by the microcontroller.

• STM8AF51xAT microcontroller: it is used to convert the commands from the GUI in control signals for the

L99H02XP in the daughterboard. Also it process the data received from the L99H02XP and return the

results to the GUI by the USB.

• L4995R LDO: this LDO is used to convert the +12 V used to supply the motherboard to a +5 V voltage used

to supply the microcontroller and the L99H02XP in the daughterboard.

• Socket and connectors to plug the daughterboard.

The motherboard schematic is shown in the following figures. Schematic and BOM of the motherboard can be

found on the ST website.

UM2921

Hardware description and setup

UM2921 - Rev 1 page 3/18

Figure 3. STM8 Uni board - I/O and body

P100

SPI

R261 R

R265 R

R270 R

R274 R

GND

2 6

ZD120D

ESDAxx

2 4

ZD120C

ESDAxx

2 3

ZD120B

ESDAxx

2 1

ZD120A

ESDAxx

GND

R275 R

R271 R

R266 R

R262 R

SPI_MISO

SPI_MOSI

SPI_SCK

SPI_NSS

SPI_SCK

SPI_MOSI

SPI_MISO

SPI_NSS

SPI_SCK

SPI_MOSI

SPI_MISO

SPI_NSS

PA3

PA4

PA5

PA6

PB0

PB1

PB2

PB3

PB4

PB5

PB6

PB7

PC1

PC2

PC3

PC4

PC5

PC6

PC7

PD0

PD2

PD3

PD4

PD5

PD6

PD7

PE0

PE1

PE2

PE3

PE4

PE5

PE6

PE7

PF0

PF3

PF4

PF5

PF6

PF7

PG0

PG1

PC0

CAN_TX

CAN_RX

LIN_UART_RX

LIN_UART_TX

NRST

CAN_TX

CAN_RX

LIN_UART_TX

LIN_UART_RX

P102

CAN

CAN_HI

CAN_LO

P101

LIN

GND

JP100

LIN_PULL_UP

R239

C128

GND

Tr_d100

ESDLIN

GND

R276 R

R202 R

R204 R

R194 R

R184 R

R182 R

R173 R

R171 R

R170 R

R149 R

USART_RX

USART_TX

USART_CX

R151 R

R153 R

R154 R

USART_RX

USART_TX

USART_CX

PA3/TIM2_CC3

R146

C100

CZD100

BZV55C5.1

GND GND

R145

R148

+5V

GND

R152

C101

CZD101

BZV55C5.1

GND GND

R150

R155

+5V

GND

R163 R

R165 R

R167 R

R157

C102

CZD102

BZV55C5.1

GND GND

R156

R158

+5V

GND

R160

C104

CZD103

BZV55C5.1

GND

R159

R161

+5V

GND

R166

C106

CZD104

BZV55C5.1

GNDGND

R164

R169

+5V

GND

R187

C113

ZD107

BZV55C5.1

GND GND

R186

R189

RGND

R174

C109

CZD105

BZV55C5.1

GND GND

R172

R176

+5V

GND

R180

C111

CZD106

BZV55C5.1

GND GND

R178

R183

+5V

GND

+5V

R168 R

R175 R

R177 R

R179 R

R181 R

R185 R

R188 R

R191 R

R192 R

PC1(HS)/TIM1_CC1

PC2(HS)/TIM1_CC2

PC3(HS)/TIM1_CC3

PC4(HS)/TIM1_CC4

PD0(HS)/TIM3_CC2

PD2(HS)/TIM3_CC1

PD3(HS)/TIM2_CC2

PD4(HS)/TIM2_CC1

PD7/TLI

PE0/CLK_CCO

I2C_SCL

I2C_SDA

PE3/TIM1_BKIN

PE4_

Ext_10

Ext_1

Ext_2

Ext_3

Ext_4

Ext_5

Ext_6

Ext_7

Ext_8

Ext_9

Ext_1

Ext_2

Ext_3

Ext_4

Ext_5

Ext_6

Ext_7

Ext_8

GND

+Vs_Ch_A

I2C_SCL

I2C_SDA

J102

CON_2

J103

CON_2

J107

CON_2

C103

C105

C107

C108

C120

C123

GND

J109

DIP_6pin

LED102

LED106

LED110

LED107

LED103

R 042R R 142R

R 652R R 752R

R 852R R 952R

R 362R R 462R

R 762R R 862R

R 272R R 372R

GND

R147 R NReset

NReset

R193

ZD108

BZV55C5.1

GND

R190

R195

RGND

+5V

C115

GND R197

ZD109

BZV55C5.1

GND

R196

R198

RGND

+5V

C118

GND

R200

ZD110

BZV55C5.1

GND

R199

R201

RGND

+5V

C119

GND R205

ZD111

BZV55C5.1

GND

R203

R206

RGND

+5V

C122

GND

R212

ZD112

BZV55C5.1

GND

R209

R214

RGND

+5V

C124

GND R219

ZD113

BZV55C5.1

GND

R217

R220

RGND

+5V

C125

GND

R234

ZD114

BZV55C5.1

GND

R233

R235

RGND

+5V

C126

GND R237

ZD115

BZV55C5.1

GND

R236

R238

RGND

+5V

C127

GND

R208 R

R210 R

R211 R

R215 R

R216 R

R218 R

R162 R

IO..BUS

COMMUNICATION..BUS

Ext_10

J104

CON_2

C112

GND

C110

J105

CON_2

C116

GND

C114

J106

CON_2

C117

C121

GND

J108

DIP_6pin

R 452R R 552R

R 252R R 352R

R 052R R 152R

R 742R R 842R

R 542R R 642R

R 342R R 442R

LED100

LED104

LED108

LED101

LED105

LED109

LED111

P103

Header 15

Q103

BSS138

GND

LED113

LED_A

R277

Q104

BSS138

GND

LED114

LED_B

R278

Q105

BSS138

GND

LED115

LED_C

R279

Q102

BSS84

R281

LED116

LED_D

GND

Q100

BSS84

R242

LED112

SPI_CSN

GND

SP101

SP100

GND GND

R282

R280

PA3/TIM2_CC3

PC1(HS)/TIM1_CC1

PC2(HS)/TIM1_CC2

PC3(HS)/TIM1_CC3

PC4(HS)/TIM1_CC4

PD0(HS)/TIM3_CC2

PD2(HS)/TIM3_CC1

PD3(HS)/TIM2_CC2

PD4(HS)/TIM2_CC1

PD7/TLI

PE0/CLK_CCO

PE3/TIM1_BKIN

PH0(HS)

PC0/ADC_ETR

PH2_

PH7/TIM1_NCC1

PH4/TIM1_ETR

PH3_

PH2_

PH1(HS)

PH0(HS)

+5V_DB

LED_A

LED_B

LED_C

LED_D

LED_A

LED_B

LED_C

LED_D

BTN_COM

BTN_A

BTN_B

BTN_COM

BTN_A

BTN_B

IO_CON_1

IO_CON_2

IO_CON_3

IO_CON_4

IO_CON_5

IO_CON_6

IO_CON_7

IO_CON_8

IO_CON_9

IO_CON_10

IO_CON_11

IO_CON_12

IO_CON_1

IO_CON_2

IO_CON_3

IO_CON_4

IO_CON_5

IO_CON_6

IO_CON_7

IO_CON_8

IO_CON_9

IO_CON_10

IO_CON_11

IO_CON_12

GND

R101

+5V

R123

GND

R102

+5V

R124

GND

R103

+5V

R125

GND

R104

+5V

R126

GND

R105

+5V

R127

GND

R106

+5V

R128

GND

R107

+5V

R129

GND

R108

+5V

R130

GND

R109

+5V

R131

GND

R110

+5V

R132

GND

R111

+5V

R133

GND

R112

+5V

R134

GND

R113

+5V

R135

GND

R114

+5V

R136

GND

R115

+5V

R137

GND

R116

+5V

R138

GND

R117

+5V

R139

GND

R118

+5V

R140

GND

R119

+5V

R141

GND

R100

+5V

R122

GND

R120

+5V

R142

GND

D100

DR144

R221R

R222R

R223R

R224R

R225R

R226R

R227R

R228R

R229R

R230R

R231R

R232

ZD117

ZD122

ZD125

ZD119

ZD121 ZD123

ZD118

ZD126

ZD116

ZD124

ZD128

ZD127

GND

+5V_PERM +5V_PERM +5V_PERM +5V_PERM

+5V_PERM

+Vs_Ch_B

GND

I2C_SCL

I2C_SDA

+Vs_Ch_B

+Vs_Ch_A

+5V_PERM

+5V_DB

+Vs_PERM

PERIPHERIAL..BUS

EXPANDER..BUS

+Vs_PERM

+5V_PERM

+Vs_Ch_A

+Vs_Ch_B

+5V_DB +5V_DB

+5V_PERM

+Vs_Ch_B

+Vs_Ch_A

+Vs_PERM

Chargepump

PH3_

PH5/TIM1_NCC3

PH6/TIM1_NCC2

PH7/TIM1_NCC1

PE4_

PC0/ADC_ETR

GND GND

USB_CB_2

USB_CB_3

Q101

BSS84

R249

+5V_PERM

R269

GND

2 3

T100

BC847

R260

GND

EXT_A1

Header 10

Ext_9

EXT_B1

Header 10

GND

PH4 R213 R PH4/TIM1_ETR

R121

+5V

R143

GND

+5V

+5V_PERM

+5V_DB

PB0/AIN0/TIM1_NCC1

PB1/AIN1/TIM1_NCC2

PB2/AIN2/TIM1_NCC3

PB3/AIN3

PB4/AIN4

PB5/AIN5

PB6/AIN6

PB7/AIN7

A10

PE7/AIN8

A11

PE6/AIN9

A12

+5V_Perm

PF0/AIN10

A13

PF3/AIN11

A14

PF4/AIN12

A15

PF5/AIN13

A16

PF6/AIN14

A17

PF7/AIN15

A18

PA3/TIM2_CC3

A19

PC1(HS)/TIM1_CC1

A21

PC2(HS)/TIM1_CC2

A22

PC3(HS)/TIM1_CC3

A23

PC4(HS)/TIM1_CC4

A24

PD0(HS)/TIM3_CC2

A25

PD2(HS)/TIM3_CC1

A26

PD3(HS)/TIM2_CC2

A27

PD4(HS)TIM2_CC1

A28

PD7/TLI

A29

PE0/CLK_CCO

A30

PE3/TIM1_BKIN

A31

PE4

A32

PC0/ADC_ETR

A20

PH0(HS)

A40 PH1(HS)

A39 PH2

A38 PH3

A37 PH4/TIM1_ETR

A36 PH5/TIM1_NCC3

A35 PH6/TIM1_NCC2

A34 PH7/TIM1_NCC1

A33

PE5/SPI_NSS

PC5/SPI_SCK

B10

PC6/SPI_MOSI

B11

PC7/SPI_MISO

B12

PD5/LINUART_TX

PD6/LINUART_RX

PG0/CAN_TX

PG1/CAN_RX

PA4/USART_RX

B4 PA5/USART_TX

B3 PA6/USART_CX

PE1/I2C_SCL

B13

PE2/I2C_SDA

B14

NRESET

+5V_SW

B21

USB_CB2

B17 LIN_PU

B16

USB_CB3

B18

LIN

B15

BTN_COM

B22

CAN_HI

B19

BTN_A

B23

CAN_LO

B20

BTN_B

B24

LED1

B25

LED2

B26

LED3

B27

LED4

B28

IO_CON1

B29

Out 12 C1

Out 12 C2

Out 11 C3

Out 11 C4

Out 10 C5

Out 10 C6

Out 9 C7

Out 9 C8

Out 8 C9

Out 8 C10

Out 8 C11

Out 8 C12

Out 7 C13

Out 7 C14

Out 7 C15

Out 7 C16

Out 6 C17

Out 6 C18

Out 6 C19

Out 6 C20

Out 5 C21

Out 5 C22

Out 5 C23

Out 5 C24

Out 4 C25

Out 4 C26

Out 4 C27

Out 4 C28

Out 3 C29

Out 3 C30

Out 3 C31

Out 3 C32

Out 2 C33

Out 2 C34

Out 2 C35

Out 2 C36

Out 1 C37

Out 1 C38

Out 1 C39

Out 1 C40

CP D1

Vs_Per D2

VS_B D3

Vs_B D4

Vs_B D5

Vs_B D6

Vs_B D7

Vs_B D8

Vs_B D9

Vs_B D10

Vs_B D11

Vs_B D12

Vs_B D13

Vs_B D14

Vs_B D15

Vs_B D16

Vs_A D17

Vs_A D18

Vs_A D19

GND_VIP D20

GND D21

GND D22

GND D23

GND D24

GND D25

GND D26

GND D27

GND D28

GND D29

GND D30

ext10 D31

ext9 D32

ext8 D33

ext7 D34

ext6 D35

ext5 D36

ext4 D37

ext3 D38

ext2 D39

ext1 D40

IO_CON2

B30

IO_CON3

B31

IO_CON4

B32

IO_CON5

B33

IO_CON6

B34

IO_CON7

B35

IO_CON8

B36

IO_CON9

B37

IO_CON10

B38

IO_CON11

B39

IO_CON12

B40

Daughterboard Socket

STM8UB_DB

PH6/TIM1_NCC2

PH5/TIM1_NCC3

PA3/TIM2_CC3

PC1(HS)/TIM1_CC1

PC2(HS)/TIM1_CC2

PC3(HS)/TIM1_CC3

PC4(HS)/TIM1_CC4

PD0(HS)/TIM3_CC2

PD2(HS)/TIM3_CC1

PD3(HS)/TIM2_CC2

PD4(HS)/TIM2_CC1

PD7/TLI

PE0/CLK_CCO

PE3/TIM1_BKIN

PH7/TIM1_NCC1

PH4/TIM1_ETR

PH3_

PH1(HS)

PH0(HS)

PE4_

PC0/ADC_ETR

PH6/TIM1_NCC2

PH5/TIM1_NCC3

PH2_

EX_PI0

EX_PI1

EX_PI2

EX_PI3

EX_PI4

EX_PI5

EX_PI6 1

EXT_A2

Header 10

EXT_B2

Header 10

SPI_MISO

SPI_MOSI

SPI_SCK

+Vs_Ch_B

+Vs_Ch_A

+5V_PERM

+5V_DB

+5V_SW +5V_SW

+5V_SW

EX_ICC_DATA / SWIM

EX_ICC_CLOCK

EX_ICCSEL/VPP

EX_ICC_RESET

+Vs_PERM +Vs_PERM

+5V_SW

LIN

CAN_HI

CAN_LO

Default value = 1

J100

J101

PH0

PH1

PH2

PH3

PH5

PH6

PH7

R207 R

PH1(HS)

+Vs_PERM

LED118

LED124

LED127

LED117

LED121

LED128

LED119

LED123

LED126

LED120

LED125

LED122

UM2921

Motherboard schematic

UM2921 - Rev 1 page 4/18

Figure 4. STM8 Uni board - USB interface

12 Vo 11

Vos 10

Res 5

Vcr

GND

L4995R

C12

C13

GND

C10

GND GND

C11

C_EL

GND GND

5V_STM8

C14

470n

GND

5V_STM8

GND

5V_STM8

GND

PA3

PA4

PA5

PA6

PF7

PF6

PF5

PF4

PF3

PF0

PB7

PB6

PB5

PB4

PB3

PB2

PB1

PB0

PE7

PE6 PE5

PC1

PC2

PC3

PC4

PC5

PC6

PC7

PG0

PG1

PC0

PE4

PE3

PE2

PE1

PE0

PD0

swim

PD2

PD3

PD4

PD5

PD6

PD7

USB_5V_SEC_A

USB_RXD

USB_TXD

JP2

JUMP_2x

RJMP1

0R Optional

JP4

JUMP_3_PIN

JP5

JUMP_3_PIN

NRST

C17

optional

R12

optional

5V_STM8

GND

SP1

GND

NRST

PA3

PA4

PA5

PA6

PF7

PF6

PF5

PF4

PF3

PF0

PB7

PB6

PB5

PB4

PB3

PB2

PB1

PB0

PE7

PE6

PD2

PD3

PD4

PD5

PD6

PD7

PE5

PC1

PC2

PC3

PC4

PC5

PC6

PC7

PG0

PG1

PH0

PC0

PE4

PE3

PE2

PE1

PE0

PD0

ICC/SWIM (MLW10)

SWIM

GND

RST

swim data

Vcc targ. 5V_STM8

PA3

PA4

PA5

PA6

PB0

PB1

PB2

PB3

PB4

PB5

PB6

PB7

PC1

PC2

PC3

PC4

PC5

PC6

PC7

PD0

PD2

PD3

PD4

PD5

PD6

PD7

PE0

PE1

PE2

PE3

PE4

PE5

PE6

PE7

PF0

PF3

PF4

PF5

PF6

PF7

PG0

PG1

PC0

NRST

+Vs_PERM

+5V_DB

LED2

LED

5V_STM8

R11

LED1

POWER

GND

C16

100n

C15

100n

C18

100n

GND

C_EL

GND

USB_5V_SEC_B

Vcc

1GND

2NC

3INPUT2

4NC

5INPUT1

6NC

7CSENSE1

8NC

9CSENSE2

10 CS_DIS

11 Vcc

12 OUTPUT1 13

OUTPUT1 14

OUTPUT1 15

OUTPUT1 16

OUTPUT1 17

OUTPUT1 18

OUTPUT2 19

OUTPUT2 20

OUTPUT2 21

OUTPUT2 22

OUTPUT2 23

OUTPUT2 24

Vcc 25

VND5025A

Vbat

FET_N

GND

100k

10k

Tr_d1

TRANSIL_D

GND

Ivs_Meas_A

FET_P

10k

R3 100k

ZD2

BZV55C12

GND

C_EL

GND

+Vs_Ch_B

STP D3

optional

JP1

JUMP

+5V_PERM

BSS84

BSS138

GND

R14

R15

GND

5V_SUP_SW

+5V_PERM

LED3

5V_SW

R16

GND

USB optocouplers supply switch

VS supply chanels A and B

5V supply to/from daughterboard

12V permanent supply 5V permanent supply

JP3

JUMP_3_PIN

+5V_PERM+5V_PERM+Vs_PERM

Chargepump

VS_CH_B_SW

VS_CH_A_SW

VS_CH_B_SW

+Vs_Ch_A

+Vs_Ch_B

+5V_DB

+Vs_Ch_A

R10 10k

R9 10k

C_EL

GND

PB0/AIN0/TIM1_NCC1

TIM1_CC2/PC2(HS) 44

TIM1_CC3/PC3(HS) 45

CAN_TX/PG0 52

PF7/AIN15

PF6/AIN14

PF5/AIN13

PF4/AIN12

VDDA

PF0/AIN10

PB7/AIN7

PB4/AIN4

30 SPI_MISO/PC7 51

PG4 56

PI0 57

TIM1_BKIN/PE3 67

I2C_SDA/PE2 68

TIM3_CC1/PD2(HS) 75

TIM2_CC1/PD4 77

LINUART_TX/PD5 78

TIM3_CC2/PD0(HS) 73

I2C_SCL/PE1 69

PA3/TIM2_CC3

9Vddio_1

CAN_RX/PG1 53

PG2 54

PG3 55

PG5 63

PG6 64

PE4 66

LINUART_RX/PD6 79

TLI/PD7 80

SWIM/PD1(HS) 74

CLK_CCO/PE0 70

PB3/AIN3

PB2/AIN2/TIM1_NCC3

PB1/AIN1/TIM1_NCC2

SPI_NSS/PE5 41

TIM1_CC1/PC1(HS) 43

TIM1_CC4/PC4(HS) 46

SPI_SCK/PC5 47

Vssio_2 48

PA2/OSCOUT

Vssio_1

VSS

VCAP

SPI_MOSI/PC6 50

Vddio_2 49

VDD

PA4/USART_RX

PA5/USART_TX

PA6/USART_CX

PE6/AIN9

ADC_ETR/TIM2_CC2/PD3 76

PG7 65

PB6/AIN6

PA1/OSCIN

2NRST

PB5/AIN5

PF3/AIN11

VREF+

VSSA

VREF-

PE7/AIN8

PH0 (HS)

PH1 (HS)

PH2

PH3

PH4/TIM1_ETR

PH5/TIM1_NCC3

PH6/TIM1_NCC2

PH7/TIM1_NCC1

ADC_ETR/PC0 42

PI1 58

PI2 59

PI3 60

PI4 61

PI5 62

PI6 71

PI7 72

STM8AF51xAT

PH4

PH0

PH1

PH2

PH3

PH5

PH6

PH7

PH1

PH2

PH3

PH5

PH6

PH7

PH0

PH1

PH2

PH3

PH5

PH6

PH7

R13

optional

GND

+5V_PERM

+Vs_PERM

EX_PI0

EX_PI1

EX_PI2

EX_PI3

EX_PI4

EX_PI5

EX_PI6

EX_PI0

EX_PI1

EX_PI2

EX_PI3

EX_PI4

EX_PI5

EX_PI6

EX_PI0

EX_PI1

EX_PI2

EX_PI3

EX_PI4

EX_PI5

EX_PI6

JP6

JUMP_3_PIN

GND

5V_STM8

+5V_SW

5V_SUP_SW

5V_STM8

+5V_SW

EX_ICC_CLOCK

GND

R17

10k

GND

EX_ICCSEL/VPP

EX_ICC_RESET

EX_ICC_DATA / SWIM

JP7

JUMP_3_PIN

NOTICE: For Expander board programming is required to c onnect the 5V_STM8 to the target micro supply voltage

Expander board ICC connection

GND

ZD1

BZV55C12

GND GND

Vbat

GND

Tr_d2

TRANSIL_D

GND

_PA1

_PA2

_PA1

_PA2

_PI7

_PG7

_PG6

_PG5

_PG3

_PG4

_PG2

EX_PI0

EX_PI1

EX_PI2

EX_PI3

EX_PI4

EX_PI5

EX_PI6

_PG3

_PG4

_PG2

_PG7

_PG6

_PG5

_PI7

CON_16

J10

CON_16

CON_20

J11

CON_8

GND

GNDGND

J12

J15

J14

J16

J17

PIN J18

J19

PIN J20

swim

VS_CH_B_SW

VS_CH_A_SW

USB_VS_CHA

USB_VS_CHB

R18

10k

R19

10k

R20

10k

R21

10k

+5V_PERM+5V_PERM

J3 Ivs_Meas_B

GND

JP11

JUMP

2 3

NPN

R22

GND

JP9

JUMP

JP10

JUMP

JP8

JUMP

UM2921

Motherboard schematic

UM2921 - Rev 1 page 5/18

Figure 5. STM8 Uni board - STM8 and supply

Vcc 1

USB- 2

USB+ 3

Gnd 4

J500

USB1X90BPCB

C503

10n

L500

TL.1.5uHSMD

R504

C502

100n C500

4M7/25V

LED500

USB OK

GND_USB

LED502

LED501

R505

270

R506

270

R500

680

R503

2k2

R502

680

R501

2k2

C504

100n

C501

100n

GND_USB

GND

GND_USB

GND

+5V_USB

1J502

TxD

1J501

RxD

6U502

TLP113

U501

TLP113

TXD 1

RXD 5

RTS# 3

CTS# 11

DTR# 2

DSR# 9

DCD# 10

RI# 6

CBUS0 (TXLED#) 23

CBUS1 (RXLED#) 22

CBUS2 (TXDEN) 13

GND

AGND

25 VCCIO 4

VCC 20

USBDM

USBDP

RESET#

OSCO

TEST

OSCI

GND

CBUS3 (PWREN#) 14

CBUS4 (SLEEP#) 12

3V3OUT

U500

FT232RL

GND_USB

C505

100n

GND_USB

USB_5V_SEC_A

USB_RXD

USB_TXD

U503

TLP113

R507

680

+5V_USB

U504

TLP113

R508

680

+5V_USB

USB_CB_2

USB_5V_SEC_B

GND

USB_CB_3

PWREN

J503

CB2

J504

CB3

Q500

BSS84

R509

LED503

CB_3

+5V_USB

Q501

BSS84

R510

LED504

CB_2

+5V_USB

C506

100n

GND

GND_USB GND_USB

U505

TLP113

R511

680

+5V_USB

U506

TLP113

R512

680

+5V_USB

GND

C507

100n

GND

USB_VS_CHA

USB_VS_CHB

UM2921

Motherboard schematic

UM2921 - Rev 1 page 6/18

2.3 Daughterboard schematic

The Figure 6 shows the schematic of the daughterboard.

In the daughterboard the following sections are present:

• 1 EVAL-L99H02XP and the components necessary for its functionality.

• 1 connector to the motherboard.

• 1 temperature sensor LM135.

• 1 DC motor connector.

• 1 reverse battery network and VB connector.

• 1 H-bridge.

The schematic and BOM of the daughterboard can be found on the ST website.

UM2921

Daughterboard schematic

UM2921 - Rev 1 page 7/18

Figure 6. EVAL-L99H02XP daughterboard schematic

+5V_DB

PB0/AIN0/TIM1_NCC1

PB1/AIN1/TIM1_NCC2

PB2/AIN2/TIM1_NCC3

PB3/AIN3

PB4/AIN4

PB5/AIN5

PB6/AIN6

PB7/AIN7

A10

PE7/AIN8

A11

PE6/AIN9

A12

+5V_Perm

PF0/AIN10

A13

PF3/AIN11

A14

PF4/AIN12

A15

PF5/AIN13

A16

PF6/AIN14

A17

PF7/AIN15

A18

PA3/TIM2_CC3

A19

PC1(HS)/TIM1_CC1

A21

PC2(HS)/TIM1_CC2

A22

PC3(HS)/TIM1_CC3

A23

PC4(HS)/TIM1_CC4

A24

PD0(HS)/TIM3_CC2

A25

PD2(HS)/TIM3_CC1

A26

PD3(HS)/TIM2_CC2

A27

PD4(HS)TIM2_CC1

A28

PD7/TLI

A29

PE0/CLK_CCO

A30

PE3/TIM1_BKIN

A31

PE4

A32

PC0/ADC_ETR

A20

PH0(HS)

A40 PH1(HS)

A39 PH2

A38 PH3

A37 PH4/TIM1_ETR

A36 PH5/TIM1_NCC3

A35 PH6/TIM1_NCC2

A34 PH7/TIM1_NCC1

A33

PE5/SPI_NSS

PC5/SPI_SCK

B10

PC6/SPI_MOSI

B11

PC7/SPI_MISO

B12

PD5/LINUART_TX

PD6/LINUART_RX

PG0/CAN_TX

PG1/CAN_RX

PA4/USART_RX

B4 PA5/USART_TX

B3 PA6/USART_CX

PE1/I2C_SCL

B13

PE2/I2C_SDA

B14

NRESET

+5V_SW

B21

USB_CB2

B17 LIN_PU

B16

USB_CB3

B18

LIN

B15

BTN_COM

B22

CAN_HI

B19

BTN_A

B23

CAN_LO

B20

BTN_B

B24

LED1

B25

LED2

B26

LED3

B27

LED4

B28

IO_CON1

B29

CP D1

Vs_Per D2

VS_B D3

Vs_B D4

Vs_B D5

Vs_B D6

Vs_B D7

Vs_B D8

Vs_B D9

Vs_B D10

Vs_B D11

Vs_B D12

Vs_B D13

Vs_B D14

Vs_B D15

Vs_B D16

Vs_A D17

Vs_A D18

Vs_A D19

GND_VIP D20

GND D21

GND D22

GND D23

GND D24

GND D25

GND D26

GND D27

GND D28

GND D29

GND D30

ext10 D31

ext9 D32

ext8 D33

ext7 D34

ext6 D35

ext5 D36

ext4 D37

ext3 D38

ext2 D39

ext1 D40

IO_CON2

B30

IO_CON3

B31

IO_CON4

B32

IO_CON5

B33

IO_CON6

B34

IO_CON7

B35

IO_CON8

B36

IO_CON9

B37

IO_CON10

B38

IO_CON11

B39

IO_CON12

B40

Daughterboard Socket1

STM8UB_DB1

122

3V- 4

ADJ

566

7V+ 8

LM135

R27

TP1

Temperature Sensor

6V... 40V

R26

100K

GND

R22

100K

L4448

JP1

STB270N04

2 3

BC847

GND_PW

R23

GND

220nF

DIR

PWM

CSN

CLK

CSO

CSI1+

CSI1-

CSI2+

CSI2-

GL2

SL2

GH2

SH2

SL1

GL1

SH1

GH1

R20

4K7

REVERSE BATTERY & VB CONNECTOR

TEMPERATURE SENSOR

GND_PW

220uF 50V

GND_PW

220uF 50V

R18

2mOhm

R10

C15

C16

GND_PW

G1 G2

G3 G4

R28

2mOhm

CON2

D3S1

DC MOTOR

R11

10R

SH1

D4S2

R14

10R

SH2

D4S2

R25

10R

C12

2.2nF

C13

2.2nF

GND

R24

10R

GND

CSI1+

CSI1-

GND

R19

10R

R17

10R

C11

2.2nF

C10

2.2nF

GND

CSI2+

CSI2-

+5V_PERM

100nF

GND

C14

100nF

GND

47R

R12

47R

R13

47R

G3 G4

GH2

GH1

GL2

GL1

R15

10R

R16

10R

SL2SL1

220nF

DIR

PWM

+5V_PERM

CLK

CSN

1 2

TR1

SMCJ24CA

C17

220nF

GND_PW

CONNECTOR

+5V_PERM TEMP

TEMP

GND

VBAT_SENSE

GND

CSO

GND_PW

ID0

ID1

ID2

ID3

TP2

TP8

TP12

TP10

TP13

TP9

TP11

TP3

TP15

TP16

TP14

TP4

TP5

TP6

TP7

M5 M6

M7 M8

CP2-

CP1+

CP1-

GND/SLUG

GNDD

VCCD

VCC

DIR

PWM

CSN

CLK

CSO

CSI1+ 15

CSI1- 16

CSI2+ 17

CSI2- 18

TS/ACT_OFF 21

GL2 23

SL2 24

GH2 25

SH2 26

SL1 27

GL1 28

SH1 29

GH1 30

CP 31

CP2+ 32

SLUG

L99H02XP

GND

UM2921

Daughterboard schematic

UM2921 - Rev 1 page 8/18

2.4 Motherboard layout

The EVAL-L99H02XP motherboard was designed in a 2 layers board. Motherboard Top and Bottom layers are

shown in the Figure 7 and Figure 8. Gerber files of the motherboard can be found in the ST website

Figure 7. Assembly Top

Figure 8. Assembly Bottom

UM2921

Motherboard layout

UM2921 - Rev 1 page 9/18

2.5 Daughterboard layout

Different choice regarding the number of the layers can be used. A two-layers or an N-layers (where N can be 3

or 4) application board can be used to develop the board for the L99H02XP application.

A 4 layers solution was chosen to design the EVAL-L99H02XP daughterboard to increase the ground area on

which to disperse the heat.

The Top, Inner 1, Inner 2 and Bottom layers are shown in the following figures.

Gerber files of the daughterboard can be found in the ST website.

Figure 9. Assembly Top

Figure 10. Inner 1

UM2921

Daughterboard layout

UM2921 - Rev 1 page 10/18

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