L9473

Electrical specifications

7/10

Table 7.

Fault indication

Conditions

TDelay?

Initial KEY-ON Bulb and Wiring Check (Lamp ON for 1 sec

 15% after initial KEY-

ON)

No

VGO > VOV

Yes

VP < VP-F AND VGO < VSP

Yes

FP < FP-TR @ VP-TR

Yes

No connection between battery and VGO

No

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

No

Table 8.

Regulation characteristics

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

VL-PD

L terminal regulator activate

threshold

VGO=12.6V

0.8

1

1.15

V

IL-PD

L terminal pull down current

VL = VL-ACT

VGO=12.6V

0.09

0.78

mA

VP-IR

Initiate regulation phase voltage

threshold

Regulator Activated

1.1

1.3

1.5

V

IP

Phase terminal current sink

VP > 1.5V and < 12.6V

VGO = 12.6V

0.25

3.5

mA

FP-IR

Initiate regulation phase

frequency

123

145

167

Hz

FP-TR

Terminate regulation phase

frequency

59

72

86

Hz

IRD

Initiate regulation delay

Regulator Activated, VP-IR AND

FP-IR Conditions Met First Time.

2.533.5

s

FSDC

Field strobe duty cycle

Regulator Activated AND

(Regulation Terminated OR

Regulation NOT Initiated)

16

18.75

22

%

LRC

Load response control rate

Field Drive Duty Cycle Increase

8.5

10

11.5

%/s

FP-LRC

LRC transition frequency

LRC Enabled if FP < FP-LRC

255

300

345

Hz

SS

Soft-start

LRC enabled until VSP reached

regardless other conditions

34

40

46

%/s

Obsolete

Product(s)

- Obsolete

Product(s)