L9177 datasheet(18/49 Pages) STMICROELECTRONICS

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Electrical specifications

L9177

18/49

DocID17617 Rev 1

3.5.9

High side switch

Figure 9. High-side driver block diagram

3.5.10

Injector driver

Table 15. HS_OUT output electrical characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Ron_hs

Ron

Ihs = 50 mA



Ihs_max

Current limitation

VB =13.5 V

100

400

Table 16. Injector driver electrical characteristic

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Imax

Output current

2.2

I_oc

Overcurrent threshold

2.8

VDS

Output clamping voltage

I = 2.2 A

Ron

On resistance

I = 2.2 A

0.6



Ilk_off

Leakage current

Vout = 18 V, diagnosis OFF

μA

Ilk_on

Leakage current

Vout = 18 V, diagnosis ON

100

μA

ton-off

Turn on-off delay

from CMD edge to 50%

output variation

μs

VOL

Open load output voltage

Driver in OFF condition

0.46*VDD 0.5*VDD 0.54*VDD

Vdiagth_H(1) Diagnostic high threshold

Driver in OFF condition

0.54*VDD 0.6*VDD 0.66*VDD

Vdiagth_L(1) Diagnostic low threshold

Driver in OFF condition

0.36*VDD 0.4*VDD 0.44*VDD

1. Vdiagth_L<Vout<Vdiagth_H  Open Load; Vout<Vdiagth_L  Short to GND

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