L9924L datasheet(36/84 Pages) STMICROELECTRONICS

36 / 84 page

Electrical specifications

L9924L

36/84

DocID028840 Rev 3

9twait

Key presence

check time

interval

Lamp drive mode,

digital window time

-40

tfilt

Key-on filter time

Both lamp and RVC drive modes

Analogue time

V(L) = V(A+/B+) = 12 V

-45

μs

VLHTh

High voltage

threshold key-

ON receiver

detector

-0.7

0.8

0.9

VLLTh

Low voltage

threshold key-

ON receiver

detector

-0.7

0.8

0.9

ILlamp,limLS

Low-side lamp

driver limitation

current

Lamp drive mode

V(L) = 12 V

0.5

ILRVC,limLS

(2)

Low-side RVC

driver limitation

current

RVC drive mode

V(L) = 5 V

150

tLdelay

Turn-on delay

time

Both lamp and RVC drive modes

Analogue time

V(L) = 12 V

120

μs

tLOC

Maximum time

duration of low-

side linear

current limitation

Lamp drive mode

Digital window time

Pretry (3)

Max power

dissipation

during retrying

period

For information only

300

VHsat

Relay driver

saturation

voltage

I(L) = -0.3 A

ILOVCHS

High-side over-

current threshold

--1

-0.4

tLfilterHS

High-side over

current filter time

Analogue filter time

μs

Table 22. Electrical characteristics pin "L" (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

L9924L 数据表(PDF) 36 Page - STMicroelectronics

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