L9473 데이터 시트보기 (PDF) - STMicroelectronics

부품명

상세내역

제조사

L9473

CAR ALTERNATOR VOLTAGE REGULATOR

STMicroelectronics 

Figure 6. Set-Point Voltages vs. Mounting Tab Temperature (TS-Open)

15.0

14.8

14.6 14.73

14.4

14.2

14.0 14.12

13.8

13.6

13.4

14.63

14.00

14.43

13.78

13.2

13.0

-40 -20 0

20 40 60 80 100 120 140 160

Temp

L9473

Table 6. DIAGNOSTIC (Tcase = -35°C to +150°C unless otherwise specified)

Symbol

Parameter

Conditions

Min. Typ. Max. Units

VOV Over-Voltage

VSP + 1 VSP + VSP + 2

V

1.3

VUV Under-Voltage

FP > FP-LRC , 10kohm between

S_term and VGO

10.95

11.8

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 2

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)

3 Tcase < 125C

1.85

V

TDELAY Fault Indication Delay Time

Delay before Lamp ON

0.9

1.1

1.3

s

2. 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.

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

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

5/9

Share Link: