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L4947PD 数据表(PDF) 2 Page - STMicroelectronics

部件名 L4947PD
功能描述  5V-0.5A VERY LOW DROP REGULATOR WITH RESET
PDF  6 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L4947PD 数据表(HTML) 2 Page - STMicroelectronics

  L4947PD Datasheet HTML 1Page - STMicroelectronics L4947PD Datasheet HTML 2Page - STMicroelectronics L4947PD Datasheet HTML 3Page - STMicroelectronics L4947PD Datasheet HTML 4Page - STMicroelectronics L4947PD Datasheet HTML 5Page - STMicroelectronics L4947PD Datasheet HTML 6Page - STMicroelectronics  
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ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
Vi
DC Input Voltage
DC Reverse Input Voltage
Transient Input Overvoltages :
Load Dump :
5ms
≤ trise ≤ 10ms
τf Fall Time Constant = 100ms
RSOURCE
≥ 0.5Ω
Field Decay :
5ms
≤ tfall ≤ 10ms, RSOURCE ≥ 10Ω
τr Rise Time Constant = 33ms
Low Energy Spike :
trise =1
µs, tfall = 500µs, RSOURCE ≥ 10Ω
fr Repetition Frequency = 5Hz
35
–18
80
–80
± 100
V
V
V
V
V
VR
Reset Output Voltage
35
V
TJ,Tstg
Junction and Storage Temperature Range
– 55 to 150
°C
Note: The circuit is ESD protected according to MIL-STD-883C.
THERMAL DATA
Symbol
Parameter
Value
Unit
Rth j-case
Thermal Resistance Junction-case
Max
3
°C/W
GND
DELAY CAP.
+VOUT
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
1
3
2
4
5
6
7
8
9
N.C.
N.C.
N.C.
N.C.
N.C.
+VIN
N.C.
RESET
GND
20
19
18
17
16
14
15
13
12
D94AT107A
GND
10
GND
11
PIN CONNECTION (Top view)
L4947PD
IN
Ci
100nF
100nF
Cd
17
2
1-20
19
3
OUT
RESET
OUTPUT
Co
47
µF(*)
RP
D94AT108
(*) Min 20
µF, ESR <10Ω over full temperature range
RP (pull up resistor) and RL (load) are both equal to 1kΩ.
TEST CIRCUIT
L4947PD
2/6



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