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参数资料
| 型号： | LR745ND |
| 厂商： | SUPERTEX INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, UUC3 |
| 封装： | DIE-3 |
| 文件页数： | 2/5页 |
| 文件大小： | 34K |
| 代理商： | LR745ND |
14-6
+
–
+
–
comp2
Clk
Clock
Reset
Q
GND
RD
VOUT
VIN
M2
M1
R1
R2
R3
2 to 4 mA
R4
23V
Vz
comp1
VREF
Symbol
Parameter
Min
Typ
Max
Unit
Conditions
VOUT
Output Voltage
18.8
24
V
IOUT = 0
VOUT over Temperature
18.5
24.3
V
IOUT = 0, TA = -40°C to +85°C
IOUT
Output Current Limiting
2
3
4
mA
VIN
Operating Input Voltage Range
25
450
V
IINQ
Input Quiescent Current
500
AV
IN = 400V, IOUT = 0
VOFF
Output Turn OFF Voltage
12.6
13.25
13.9
V
VOFF Over Temperature
12.3
13.25
14.2
V
TA = -40°C to +85°C
VRESET
Output Reset Voltage
6.3
7
7.7
V
VRESET Over Temperature
6
7
8
V
TA = -40°C to +85°C
IOFF
VIN Off-State Leakage Current
75
AV
IN = 400V
VAUX
External Voltage Applied to VOUT
22
V
IAUX
Input Current to VOUT
500
AV
AUX = 22V
Electrical Characteristics
Test conditions unless otherwise specified: T
A = 25°C; VIN = 450V
LR745
Block Diagram
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