參數(shù)資料
型號: L9444
廠商: 意法半導體
英文描述: ONE CHIP CAR ALTERNATOR REGULATOR
中文描述: 單芯片汽車發(fā)電機調(diào)節(jié)器
文件頁數(shù): 3/5頁
文件大?。?/td> 78K
代理商: L9444
ELECTRICALCHARACTERISTICS
(– 40
°
C
T
J
125
°
C unlessotherwise noted)
Symbol
V
r
Parameter
Test Conditions
T
j
= –40
°
C
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
%
Regulation Voltage
for L9444VB
for L9448VB
for L9480VB
T
j
= 25
°
C
T
j
= 125
°
C
for L9444VB
for L9448VB
for L9480VB
C
T
Temperature Coeff. of the
Regulation Voltage
for L9444VB
for L9448VB
for L9480VB
eC
T
Error on Nominal Temperature
Coeff.
Load Regualtion
V
r
0.1 I
< I
alt
< 0.9 I
n
(note 1)
Measured at Supply Pin
250
mV
V
su
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
2
3
V
V
sd
22
V
V
sat 1
V
sat 2
I
q
I
s
I
fs
I
field
= 4 A
p
I
field
= 200 mA
Field Off
I
field
= 4 A
p
Field Off
Field Pin @ 16 V
I
clamp
= 50 mA
1.2
0.7
20
50
2
1
V
V
mA
mA
mA
5
V
1 CLAMP
Low Energy ClampingZener
Voltage
Switching Frequency
120
V
f
sw
01 I
n
< I
alt
< 0.9 I
n
30
1000
Hz
Note1:
measured on an alternator with the following characteristics: I
n
=<90A;I
alt
/I
field
>=23
APPLICATION CIRCUIT
L9444VB - L9448VB - L9480VB
3/5
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