参数资料
型号: LSP4303DAD
厂商: LITE-ON SEMICONDUCTOR CORP
元件分类: 稳压器
英文描述: 0.84 A SWITCHING CONTROLLER, 110 kHz SWITCHING FREQ-MAX, PSSO5
封装: TO-252, 5 PIN
文件页数: 3/7页
文件大小: 192K
代理商: LSP4303DAD
Liteon Semiconductor Corporation
LSP4303
Low Power Off Line SMPS Primary Switcher
Rev1.0
3/7
IDD1
Operating
Supply
Current;
Switching
ICOMP=0.5mA; ID=50mA
4.5
mA
OSCILLATOR SECTION
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
FOSC
Oscillator Frequency
Total Variation
VDD=VDDoff≤35V;
Tj=0~100°C
90
100
110
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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