L9779WD-SPI datasheet(13/141 Pages) STMICROELECTRONICS

13 / 141 page

DocID027721 Rev 2

13/141

L9779WD-SPI

Pins description

140

4V3V3

3.3 V output voltage

regulator

Power logic output

supply

Charge Pump

Analog Input

9VTRK1

Sensor1 tracking

supply 5V

Sensor supply output

VTRK2

Sensor1 tracking

supply 5 V

Sensor supply output

RST

Reset output for µP

DGT output

Open drain 10k

 > PU >

(1)

WDA

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

Open drain

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

Pu =20 µA

K_LINE

Bi-dir protected K-

line wire

Analog Input/Output

Open drain

K_RX

ISO9141 logical

output

DGT Output

Open drain

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

Table 2. Pins description (continued)

Pin#

Name

Function

Type

Polarization/note

L9779WD-SPI Datasheet(PDF) 13 Page - STMicroelectronics

L9779WD-SPI Datasheet(HTML) 13 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL