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參數(shù)資料
| 型號(hào)： | L4904A |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | DUAL 5V REGULATOR WITH RESET |
| 中文描述： | 雙帶復(fù)位5V穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 3/9頁(yè) |
| 文件大小： | 96K |
| 代理商： | L4904A |
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
Parameter
Value
24
60
Unit
V
V
DC Input Voltage
Transient Input Overvoltage (t = 40ms)
Output Current
Power Dissipation at T
amb
= 50
°
C
Storage and Junction Temperature
I
o
Internally Limited
1
– 40 to 150
P
tot
T
j
W
°
C
THERMALDATA
Symbol
R
th j-amb
Parameter
Value
100
Unit
°
C/W
Thermal Resistance Junction-ambient
Max
ELECTRICAL CHARACTERISTICS
(V
IN
= 14.4V,T
amb
= 25
o
C unlessotherwise specified)
Symbol
V
i
V
01
V
02H
V
02 L
I
01
I
L01
I
02
V
I01
Parameter
TestConditions
Min.
Typ.
Max.
20
5.15
V
01
Unit
V
V
V
V
mA
μ
A
mA
V
V
V
mV
mV
mV
mV
mV
mA
DC Operating Input Voltage
Output Voltage 1
Output Voltage 2 HIGH
Output Voltage 2 LOW
Output Current 1
Leakage Output 1 Current
Output Current 2
Output 1 Dropout Voltage (*)
R Load 1k
R Load 1k
I
02
= – 5mA
V
01
= – 100mV
V
IN
= 0, V
01
≤
3V
V
02
= – 100mV
I
01
= 10mA
I
01
= 50mA
4.95
V
01
–0.1
5.05
5
0.1
50
1
100
0.7
0.75
6.4
250
5
5
5
10
0.8
0.9
V
IT
V
ITH
V
01
V
02
V
01
V
02
IQ
Input Threshold Voltage
Input Threshold Voltage Hyst.
Line Regulation
Line Regulation 2
Load Regulation 1
Load Regulation 2
Quiescent Current
V
01
+ 1.2
V
01
+ 1.7
7V < V
IN
< 18V, I
01
= 5mA
7V < V
IN
< 18V, I
02
= 5mA
V
IN
= 8V, 5mA < I
01
< 50mA
V
IN
= 8V, 5mA < I
02
< 100mA
I
= I
01
≤
5mA
0 < V
IN
< 13V
7V < V
IN
< 13V
6.3V < V
IN1
< 13V, V
IN2
= 0
I
01
≤
5mA, I
02
= 0
50
50
20
50
4.5
1.6
0.6
6.5
3.5
0.9
I
Q1
Quiescent Current 1
mA
V
RT
V
RTH
V
RH
V
RL
t
RD
t
d
Reset Threshold Voltage
Reset Threshold Hysteresis
Reset Output Voltage HIGH
Reset Output Voltage LOW
Reset Pulse Delay
Timing Capacitor Discharge
Time
V
02
–0.15
30
V
02
– 1
4.9
50
4.12
0.25
V
02
– 0.05
80
V
02
0.4
11
20
V
mV
V
V
ms
μ
s
I
R
= 500
μ
A
I
R
= – 5mA
C
t
= 10nF
C
t
= 10nF
3
V
01
T
V
02
T
S
VR1
S
VR2
Thermal Drift
– 20
°
C
≤
<0>T
amb
≤
125
°
C
0.3
–0.8
mV/
°
C
Thermal Drift
– 20
°
C
≤
<0>T
amb
≤
125
°
C
0.3
– 0.8
mV/
°
C
Supply Voltage Rejection
Supply Voltage Rejection
f = 100Hz, V
R
= 0.5V, I
o
= 50mA
f = 100Hz, V
R
= 0.5V, I
o
= 100mA
50
50
84
80
dB
dB
* The dropout voltage is defined as the difference between theinput and the output voltage when the outputvoltage is lowered of 25 mV under
constant outputcurrent condition.
L4904A
3/9
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