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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