L9484 데이터 시트보기 (PDF) - STMicroelectronics

부품명

상세내역

제조사

L9484

Alternator voltage regulator

STMicroelectronics 

L9484

2.4

Diagnostic

Table 6.

Symbol

Diagnostic

(Tcase = -35C to +150C unless otherwise specified)

Parameter

Conditions

Min. Typ. Max. Units

VOV Over-voltage

VSP + 1

VSP +

1.3

VSP + 2

V

VL-SAT Lamp ON saturation voltage IL = 0.5A (sinked by ASVR)

>VL-ACT 1.33 1.45

V

VL-SAT-BO Lamp ON voltage (1)

IL < 0.5A, VGO = open; Tcase = -

35C to 85C

3.8

5

V

VL-RLY

Lamp OFF (relay drive)

saturation voltage (vs. B+)

IL = 750mA (sourced by

ASVR)(2) Tcase < 125C

1.85

V

TDELAY Fault indication delay time

Delay before lamp ON

0.9

1.1

1.3

s

1. This condition can happen when the connection between the battery and VGO or the output terminal of the generator is

broken. The 1.1 second delay is not required, and current is sinked by ASVR.

2. When no fault is detected the Lamp terminal is pulled up by ASVR.

2.5

Fault indication

Table 7. Fault indication table

Conditions

Initial KEY-ON Bulb and wiring check (lamp ON for 1 sec  15% after initial KEY-ON)

VGO > VOV

VP < VP-F AND VGO < VSP

FP < FP-TR @ VP-TR

No connection between battery and VGO

At start: lamp ON until FP>FP-IR AND VP>VP-F. i.e. until VP reaches 8V.

TDelay?

No

Yes

Yes

Yes

No

No

2.6

Regulation features

Table 8. Regulation features

Symbol

Parameter

Conditions

VL-PD

L terminal regulator activate

threshold

IL-PD L terminal pull down current

VGO=12.6V

VL = VL-ACT

VGO=12.6V

VP-IR

VP-TR

Initiate regulation phase voltage

threshold

Regulator activated

Terminate regulation phase

voltage threshold

Regulator activated

Min. Typ. Max. Unit

0.8

1

1.15

V

0.09

0.78 mA

1.1 1.3 1.5

V

1.1 1.3 1.5

V

7/11

Share Link: