L9788 datasheet(121/264 Pages) STMICROELECTRONICS

121 / 264 page

DS12308 Rev 4

121/264

L9788

High/low-side drivers - STARTER STR[1:3]

263

Figure 47. Safety switch off

Conditions:

5.5 V ≤ VB_IN ≤ 18 V, Tj -40 to 175 °C unless otherwise specified;

Note:

For this application the function is implemented, but kept disabled using external resistor to

pull EN_N and EN_P to low.

GADG0512161145PS

Starter

Control

Battery

L9788

ECM

Remote Location

SW_BAT

Switched

Battery

EN_N

EN_P

Status

Isolated Circuitry

Watchdog Function

WDA

Throttle

H-Bridge

Driver IC

Isolated

Disable

oscillator fault

v3v3pre_mon_ov

v3v3pre_mon_uv

v3v3pre_ov

v3v3pre_uv

v3v3ana_ov

v3v3ana_uv

v3v3dig_ov

v3v3dig_uv

gnd_dig_loss

STR3

EN_RLY4

EN_STR2

EN_STR3

STR2

RLY4

Table 52. EN_P and EN_N electrical characteristics

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

VIH_TX

HIGH_level input voltage

1.75

EN_P

VIL_TX

LOW_level input voltage

0.75

EN_P

VHYS_TX

Input voltage hysteresis

0.06

0.5

EN_P

PULL_TX

Pull-up resistance

100

200

kΩ

EN_P

VIH_TX

HIGH_level input voltage

1.75

EN_N

VIL_TX

LOW_level input voltage

0.75

EN_N

VHYS_TX

Input voltage hysteresis

0.06

0.5

EN_N

PULL_TX

Pull-up resistance

100

200

kΩ

EN_N

L9788 Datasheet(PDF) 121 Page - STMicroelectronics

L9788 Datasheet(HTML) 121 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL