L9444 Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
L9444 Datasheet PDF : 5 Pages
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L9444VB - L9448VB - L9480VB
ELECTRICAL CHARACTERISTICS (– 40 °C ≤ TJ≤ 125 °C unless otherwise noted)
Symbol
Vr
CT
eCT
Vr
Vsu
Vsd
Vsat 1
Vsat 2
Iq
Is
Ifs
V1 CLAMP
fsw
Parameter
Regulation Voltage
Temperature Coeff. of the
Regulation Voltage
Error on Nominal Temperature
Coeff.
Load Regualtion
Control Circuit Minimum Start
up Voltage
Shutdown Voltage (dump
protection threshold)
Output Saturation Voltage
Start Up Saturation Voltage
Quiescent Current
Supply Current
Field Pin Sink Current
Low Energy Clamping Zener
Voltage
Switching Frequency
Test Conditions
Tj = –40°C for L9444VB
for L9448VB
for L9480VB
Tj = 25°C
Tj = 125°C for L9444VB
for L9448VB
for L9480VB
for L9444VB
for L9448VB
for L9480VB
0.1 In < Ialt < 0.9 In
(note 1)
Measured at Supply Pin
Ifield = 4 Ap
Ifield = 200 mA
Field Off
Ifield = 4 Ap
Field Off
Field Pin @ 16 V
Iclamp = 50 mA
01 In < Ialt < 0.9 In
Note1: measured on an alternator with the following characteristics: In =<90A; Ialt/Ifield >= 23
Min.
14.49
14.36
14.75
14.10
13.50
13.70
13.10
Typ.
14.79
14.66
15.05
14.40
13.80
14.00
13.40
-6
-4
- 10
± 30
Max.
15.05
14.96
15.35
14.70
14.10
14.30
13.70
Unit
V
V
V
V
V
V
V
mV/°C
mV/°C
mV/°C
%
250
mV
2
3
V
22
V
1.2
2
V
0.7
1
V
20
mA
50
mA
5
mA
120
V
30
1000 Hz
APPLICATION CIRCUIT
3/5
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