L9788 datasheet(91/264 Pages) STMICROELECTRONICS

91 / 264 page

DS12308 Rev 4

91/264

L9788

Low-side drivers

263

I_LS_PU1

Diagnostic pull up

current

In OFF condition, OUTx

< VLVT, Ipupd_EN

=ENB,



Ipupd_MODE = "1"

2.5

3.6

4.7

INJ1/2/3/4

I_LS_PU2

Diagnostic pull up

low current

In OFF condition,



OUTx < VLVT,

Ipupd_EN = ENB,

Ipupd_MODE = "0" and

IDIAG_HIGH_INJ = "0"

100

µA

INJ1/2/3/4

I_LS_PU3

Diagnostic pull up

high current

In OFF condition,

OUTx < VLVT,

Ipupd_EN = ENB,

Ipupd_MODE = "0" and

IDIAG_HIGH_INJ = "1"

100

200

µA

INJ1/2/3/4

I_LS_PD1

Diagnostic pull

down low current

In OFF condition,

OUTx > VOUTOPEN,

Ipupd_EN = ENB

IDIAG_HIGH_INJ = "0"

110

µA

INJ1/2/3/4

I_LS_PD2

Diagnostic pull

down high current

In OFF condition,

OUTx > VOUTOPEN,

Ipupd_EN = ENB

IDIAG_HIGH_INJ = "1"

325

550

µA

INJ1/2/3/4

Tflt_diagoff1

DIAG Filter time

Filter Mode = 0

100

125

µs

INJ1/2/3/4

Tflt_diagoff2

DIAG Filter time

Filter Mode = 1

450

600

750

µs

INJ1/2/3/4

Minimum OFF time

for correct

diagnostic

Application note (esd

cap < 10nF)

Filter Mode=0

175

µs

ESVx

Table 44. Low-side driver - INJECTOR electrical characteristics (continued)

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

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