L9662 datasheet(18/80 Pages) STMICROELECTRONICS

18 / 80 page

Electrical specifications

L9662

18/80

DocID028325 Rev 1

IHS_12A

High side deployment current

limit

Configuration mode 1 bits

D9:D8=”00” SQHx shorted

to ground;

VRES = 7 to 37 V

1.21

1.47

IHS_15A

Configuration Mode 1 bits

D9:D8=”01” SQHx shorted

to ground;

VRES = 7 to 25 V

1.51

1.85

IHS_175A

Configuration Mode 1 bits

D9:D8=”11” SQHx shorted

to ground;

VRES = 7 to 37 V

1.76

2.14

tILIM

Low side MOS shutdown

under short to battery

Vsqblo=18 V

110

μs

ILS

Low side MOS current limit

2.2

4.0

tsettle

Firing current settling time

Time from fire command

CS_D rising edge to where

firing current remains within

specified limits

CSQUIB _HI = 0 to 0.12 μF

CSQUIB _LO = 0 to 0.12 μF

150

μs

tDEPLOY-2ms

Deployment time

VRES = 7 to 37 V@ IHS_12A

VRES = 7 to 25 V@ IHS_15A

For IHS_12A and IHS_15A

Firing Measured from CS_D

rising edge

2.15

2.5

tDEPLOY-1ms

VRES = 7 to 37 V

For IHS_175A Firing

Measured from CS_D rising

edge

1.15

1.40

tDEPLOY-0.65ms

VRES = 7 to 37 V

For IHS_175A Firing current

Measured from CS_D rising

edge

0.65

0.85

Table 7. Squib deployment drivers and diagnostics - DC electrical characteristics

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

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