L9659 datasheet(13/51 Pages) STMICROELECTRONICS

13 / 51 page

L9659

Electrical specifications

Doc ID 022048 Rev 2

13/51

tDIAGTIMEOUT Diagnostic delay time

From/CS  until Test Results

are Valid,

Output voltage change 0V to

VDD * 0.72

CSQHx= 0.12µF

CSQLx= 0.12µF

300

µs

High side safing diagnostics

ISRC_HSS

Diagnostic current into

selected VRESx pin during

test

Normal conditions

710

950

µA

IHSS_8

Current during diagnostic

All 8 VRESx pins tied

together

710

1020

µA

RHSSNORM_th

Normal resistance range

when running high side

safing diagnostics

All 8 VRESx pins tied

together

1.4

2.5



VHSSNORM_r

ange

Normal voltage range

between VSDIAG and

VRESx pin) when running

high side safing diagnostics

All 8 VRESx pins tied

together

1.0

2.5

VHSSSHORT_th

Short voltage threshold

between VSDIAG and

VRESx pin)

All 8 VRESx pins tied

together

0.5

1.0

VHSSOPEN_th

Open voltage threshold

between VSDIAG and

VRESx pin)

All 8 VRESx pins tied

together

2.5

4.0

tDIAGTIMEOUT Diagnostic delay time

From/CS  until test results

are valid,

CSQHx= 0.12µF

CSQLx= 0.12µF

500

µs

Voltage measurement diagnostics (VRESx)

IRESx

Max diagnostic current into

VRESx pin

Normal Conditions

µA

VVRESXLO_th

Low voltage threshold for

VRESx pin

-5.0

VVRESXHI_th

High voltage threshold for

VRESx pin

13.7

18.0

tDIAGTIMEOUT Diagnostic delay time

From/CS  until test results

are valid.

100

µs

Table 7.

Squib deployment drivers and diagnostics - DC electrical characteristics (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

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