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S3882P

AUK corp
Part Number S3882P
Manufacturer AUK corp
Description Current Mode PWM Controller
Published Apr 7, 2005
Detailed Description Semiconductor S3882P Current Mode PWM Controller Descriptions The S3882 is fixed PWM controller for Off-line and DC-DC...
Datasheet PDF File S3882P PDF File

S3882P
S3882P

Overview
Semiconductor S3882P Current Mode PWM Controller Descriptions The S3882 is fixed PWM controller for Off-line and DC-DC converter applications.
The internal circuits include UVLO, low start up current circuit, temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totempole output for driving a power MOSFET.
Also S3882 provide low start up current below 0.
3mA and short shutdown delay Time typical 100nsec.
S3882 have UVLO threshold of 16V(on) and 10V(off).
.
Features • Low start up current < 0.
3mA • Operating range up to 500KHz • Cycle by cycle current limiting • Under Voltage Lock Out with hysteresis • Short shutdown delay time ; typical 100nsec • High current totempole output • Output swing limiting : 22V Ordering Information Type NO.
S3882P Marking S3882P Package Code DIP-8 Outline Dimensions unit : mm PIN Connections 1.
Output / Compensation 2.
Voltage feedback.
Input 3.
Current sense Input 4.
Rt/Ct 5.
GND 6.
Output 7.
Vcc 8.
Vref KSI-L008-000 1 S3882P Absolute Maximum Ratings Characteristic Supply Voltage Output Current Analog Inputs Error Amp.
Output Sink current Power Dissipation Ta=25°C Symbol Vcc Io Vi(ana) Isink(EA) Pd Ratings 28 1 -0.
3 to 6.
3 10 1 Unit V A V mA W Electrical Characteristics (Vcc=15V, Rt=10Kohm,Ct=3.
3nF, Ta=0℃ to 70℃, Unless otherwise specified) Characteristic 1.
Reference Section Output Voltage Line Regulation Load Regulation Output Short Current Symbol Vref Δ Vref Δ Vref Isc fOSC △f /△V VOSC Idischarge Test Condition Tj=25℃, Io=1mA 12V ≤ VCC ≤ 25V 1mA ≤ IO ≤ 20mA Min.
4.
91 -180 47 1.
4 7.
8 Typ.
Max.
5.
00 6 6 -100 52 0.
2 1.
7 8.
3 5.
09 20 25 57 1.
0 1.
8 8.
8 Unit V mV mV mA KHz % V mA Ta=25°C Tj=25℃ 12V ≤ VCC ≤ 25V Vpin4, peak to peak Tj=25°C, Pin4=2V 2.
Oscillator Section Initial Accuracy Voltage Stability Oscillator Voltage Discharge Current 3.
Error Amp Section Input Voltage Input Bias Current Open Loop Voltage Gain Unity Gain Bandwidth PSRR Output Sink Current Outpu...


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