L9660 datasheet(11/49 Pages) STMICROELECTRONICS

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DocID024714 Rev 2

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L9660

Electrical specifications

2.4.2

Electrical characteristics - Squib deployment drivers and diagnostics

4.9 V

 V

DD  5. 1V; 7 V  VRESX  37 V; 7 V  VSDIAG  37 V; FEN1 = FEN2 = VDD;

R_REF = 10 k

, ±1%, 100 PPM; -40 °C  T

A  +95 °C; C_VRES0_1  68nF; C_VRES2_3 

68nF; unless other specified.

ILKGD

Input leakage current

MOSI, SCLK

VIN = VDD

µA

VIN = 0 to VIH

-1

µA

IPU_CS

Input pull-up current CS_D

VIN = VIH to GND

-10

-50

µA

VOH

Output voltage MISO

IOH = -800µA

VDD–

0.8

VOL

IOL = 1.6mA

0.4

IHI_Z

Tri-state current MISO

MISO = VDD

µA

MISO = 0V

-1

µA

Table 6. General - DC electrical characteristics (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

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

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

General

ILKGSQH

Leakage current SQH

VSDIAG = VDD = 0,

VRES = 37V, VSQH = 0V

µA

ILKGVRES

Bias current VRESX

VSDIAG = 18V; VDD = 5V;

VRES = 37V; SQH shorted

to SQL

µA

ILKGSQL

Leakage current SQL

VSDIAG = VDD = 0,

VSQL = 18V

-10

µA

IPD

Pull-down current SQL

VSQL = 1.5V to 20V

3.3

4.1

VBIAS

Diagnostics Bias voltage

Nominal 3.6V

-5%

VDD*

0.72

+5%

Short to battery/ground diagnostics - Rsqb from 0 to Open

ISVRCM

Maximum diagnostics bias

current limit

Short to battery or ground

test active VSQH = 0V

RSTB

Short to battery resistance

threshold

Vbatt = 6.5V

1.92

3.42



Vbatt = 16V

8.61

13.98



Vbatt = 20V

11.42

18.42



ISTB

Short to battery current

threshold

-0.9

1.42

RSTG

Short to ground threshold

1.07

2.1



ISTG

Short to ground current

threshold

1.8

3.2

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