L9473 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
L9473 Datasheet PDF : 9 Pages
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L9473
Table 8. REGULATION FEATURES
Symbol
Parameter
Conditions
VL-PD L Terminal Regulator Activate
Threshold
VGO=12.6V
IL-PD L Terminal Pull Down Current
VL = VL-ACT
VGO=12.6V
VP-IR Initiate Regulation Phase Voltage Regulator Activated
Threshold
IP Phase Terminal Current Sink
VP > 1.5V and < 12.6V
VGO = 12.6V
FP-IR Initiate Regulation Phase
Frequency
FP-TR Terminate Regulation Phase
Frequency
IRD Initiate Regulation Delay
FSDC Field Strobe Duty Cycle
Regulator Activated, VP-IR AND
FP-IR Conditions Met First Time.
Regulator Activated AND
(Regulation Terminated OR
Regulation NOT Initiated)
LRC Load Response Control Rate
Field Drive Duty Cycle Increase
FP-LRC LRC Transition Frequency
SS Soft-Start
LRC Enabled if FP < FP-LRC
LRC enabled until VSP reached
regardless other conditions
Min.
0.8
Typ.
1
Max.
1.15
Unit
V
0.09
0.78 mA
1.1
1.3
1.5
V
0.25
3.5
mA
123 145 167
Hz
59
72
86
Hz
2.5
3
3.5
s
16 18.75 22
%
8.5
10
11.5 %/s
255 300 345
Hz
34
40
46
%/s
6/9
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