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参数资料
| 型号： | LSP4301ND |
| 厂商： | LITE-ON SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.84 A SWITCHING CONTROLLER, 66 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封装： | PLASTIC, DIP-8 |
| 文件页数： | 3/8页 |
| 文件大小： | 220K |
| 代理商： | LSP4301ND |
Liteon Semiconductor Corporation
LSP4301
Low Power Off Line SMPS Primary Switcher
Rev1.0
3/8
IDD1
Operating
Supply
Current;
Switching
ICOMP=0.5mA; ID=50mA
4.5
mA
Drst
Restart Duty Cycle
16
%
VDDoff
VDD Undervoltage Shutdown
Threshold
7
8
9
V
VDDon
VDD Start Up Threshold
13
14.5
16
V
VDDhyst
VDD Threshold Hysteresis
5.8
6.5
7.2
V
VDDovp
VDD Overvoltage Threshold
38
42
46
V
OSCILLATOR SECTION
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
FOSC
Oscillator Frequency
Total Variation
VDD=VDDoff≤35V;
Tj=0~100°C
54
60
66
kHz
FEEDBACK SECTION
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Icomp
Feedback Shutdown Current
Vcomp=0V
0.9
mA
Rcomp
COMP Pin Input Impedance
ID=0mA
1.2
k
PWM COMPARATOR SECTION
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
GID
Icomp to ID Current Gain
560
IDlim
Peak Current Limitation
VCOMP=0V
0.56
0.7
0.84
A
td
Current Sense Delay to
Turn-Off
ID=0.4A
200
ns
tb
Blanking Time
500
ns
tONmin
Minimum Turn On Time
700
ns
OVERTEMPERATURE SECTION
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
TSD
Thermal
Shutdown Temperature
140
170
℃
THYST
Thermal Shutdown
Hysteresis
40
℃
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