L99H01 Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

L99H01

Motor bridge driver for automotive applications(LQFP32)

STMicroelectronics 

Block diagram and pin description

L99H01

Table 2. Pin definitions and functions (continued)

Pin

Symbol

Function

Serial clock input: this input controls the internal shift register of the

9

CLK

SPI and requires CMOS logic levels.This input has a pull-down

current.

Serial data in: the input requires CMOS logic levels and receives serial

10

DI

data from the microcontroller. The data is an 8-bit control word and the

most significant bit (MSB, bit 7) is transferred first. This input has a

pull-down current.

Serial data out: the diagnosis data is available via the SPI and this

11

DO

tristate-output. The output remains in tristate, if the chip is not selected

by the input CSN (CSN = high).

12, 14, 19,

20, 22

NC

Not connected.

13

CSO

Current sense amplifier output: VCC compatible.

15

CSI1+ Current sense amplifier input: positive input 1, multiplexible.

16

CSI1-

Current sense amplifier input: negative input 1, multiplexible.

17

CSI2+ Current sense amplifier input: positive input 2, multiplexible.

18

CSI2-

Current sense amplifier input: negative input 2, multiplexible.

21

TS/ ACT_OFF Thermal sensor interface or input to switch all driver active off.

23

GL2

Gate driver for PowerMOS low-side switch in halfbridge 2.

24

SL2

Source of low-side switch in halfbridge 2.

25

GH2

Gate driver for PowerMOS high-side switch in halfbridge 2.

26

SH2

Source/drain of halfbridge 2.

27

SL1

Source of low-side switch in halfbridge 1.

28

GL1

Gate driver for PowerMOS low-side switch in halfbridge 1.

29

SH1

Source/drain of halfbridge 1.

30

GH1

Gate driver for PowerMOS high-side switch in halfbridge 1.

31

CP

Charge pump output.

32

CP2+

Charge pump pin for capacitor 2, positive side.

33

CP2-

Charge pump pin for capacitor 2, negative side.

34

CP1+

Charge pump pin for capacitor 1, positive side.

35

CP1-

Charge pump pin for capacitor 1, negative side.

Power supply voltage (external reverse protection required).

36

VS

For EMI reason a ceramic capacitor as close as possible to GND is

recommended.

8/53

DocID15567 Rev 5

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