L9788 datasheet(74/264 Pages) STMICROELECTRONICS

tên linh kiện	L9788

Giải thích chi tiết về linh kiện	Multifunction IC for automotive engine management system

PDF	264 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

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74 / 264 page

Multi-voltage regulator supplies

L9788

74/264

DS12308 Rev 4

6.4

External tracking regulator monitor

Vsense4_mon is an input pin for monitoring an external tracking regulator output voltage.

Conditions:

5.5 V < VB_IN_SW ≤ 18 V, Tj -40 to 175 °C unless otherwise specified.

Table 32. VTrack external components characteristics

Symbol

Parameter

Note

Min

Typ

Max

Unit

CVS1/2/3

VSENSE external

capacitor

ESR_max<20 mΩ Suggest

part numbers:

GCM188R71C105KA49D

470nF

-20%

0.47

µF

VSENSE1/2/3

Table 33. External VTrack monitor

Symbol

Parameter

Test condition

Min

Typ

Max Unit

VUV_VS_l

VSENSE4 undervoltage

threshold low

4.55

4.65

4.75

VSENSE4_MON

VUV_VS_h

VSENSE4 undervoltage

threshold high

4.7

4.8

4.95

VSENSE4_MON

VOV_VS

VSENSE4 overvoltage

threshold

5.3

5.4

5.55

VSENSE4_MON

TUV_filter_VS_running(1) Undervoltage filter time

Covered by

SCAN TEST

µs

VSENSE4_MON

TOV_filter_VS_running(1) Overvoltage filter time

Covered by

SCAN TEST

µs

VSENSE4_MON

1. Fault detection during power up sequence is masked until RSTN release to avoid false triggering at ramp-up phase.

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