L9779WD datasheet(14/170 Pages) STMICROELECTRONICS

14 / 170 page

Pins description

L9779WD

14/170

DocID027452 Rev 5

VTRK2

Sensor1 tracking supply 5V

Sensor supply output

RST

Reset input/output for µP

Output: push-pull

DGT input

Open drain

VDD_IO

External supply

Power input

WDA_INT

WDA Interrupt Signal

Output: open drain DGT

input

VRS

VRSN

Negative VRS input

Analog input

1.65 V internal polarization

VRSP

Positive VRS input

Analog input

1.65 V internal polarization

OUT_VRS

Digital VRS output

DGT output

Push-pull

CAN

CAN_TX

Can transceiver input (from TX µP) DGT input

CAN_RX

Can transceiver output (to RX µP)

DGT output

CAN_H

Bi-dir protected CAN_H wire

Analog input/output

CAN_L

Bi-dir protected CAN_L wire

Analog input/output

ISO9141

K_TX

ISO9141 logical input

DGT input

Internal pull-up resistor

K_LINE

Bi-dir protected K-line wire

Analog input/output

Open drain

K_RX

ISO9141logical output

DGT output

Push-pull

Low side drivers

OUT1

Output low-side 1 for R, L load

(Injector)

Power output

Open drain

OUT2

Output low-side 2 for R, L load

(Injector)

Power output

Open drain

OUT3

Output low-side 3 for R, L load

(Injector)

Power output

Open drain

OUT4

Output low-side 4 for R, L load

(Injector)

Power output

Open drain

PGND

Power GND

PGND

Power GND

PGND

OUT5

Output low-side 5 for R, L load (high

current)

Power output

Open drain

OUT6

Output low-side 6 for R, L load

(heater)

Power output

Open drain

OUT7

Output low-side 7 for R, L load

(heater)

Power output

Open drain

Table 2. Pins description (continued)

Pin#

Name

Function

Type

Polarization/note

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L9779WD 数据表(PDF) 14 Page - STMicroelectronics

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