KA3882C

Operating Supply Voltage :
Number of Outputs : 1
Mounting Style : Through Hole
Package / Case : DIP-8
Rise Time : 40 ns
Switching Frequency : 500 KHz
Duty Cycle (Max) : 100 %
Maximum Operating Temperature : + 70 C
Fall Time : 40 ns
Operating Supply Current : 17 mA


Features:

• Low Start Current 0.2mA (Typ)
• Operating Range Up To 500kHz
• Cycle by Cycle Current Limiting
• Under Voltage Lock Out With Hysteresis
• Short Shutdown Delay Time: Typ.100ns
• High Current Totem-Pole Output
• Output Swing Limiting: 22V


Specifications

Parameter	Symbol	Value	Unit
Supply Voltage	VCC	30	V
Output Current	IO	±1	A
Analog Inputs (pin 2, 3)	VI(ANA)	-0.3 to 6.3	V
Error Amp. Output Sink Current	ISINK(EA)	10	mA
Power dissipation	PD	1	W
Thermal Resistance, Junction-to-Air (Note4) 8-SOP	Tja	280	°C/W
8-DIP		95
Storage temperature range	TSTG	-65 ~ 150	°C

Description

The KA3882C/KA3883C is a fixed PWM controller for Off Line and DC to DC converter applications. The internal circuits include an UVLO, a low start up current circuit, a temperature compensated reference, a high gain error amplifier, a current sensing comparator, and the high current totem-pole output for driving a POWER MOSFET. Also the KA3882C/KA3883C provides low start-up current below 0.3mA and short shutdown delay time typ. 100ns. The KA3882C has the UVLO threshold of 16V (on) and 10V(off). The KA3883C is 8.4V(on) and 7.6V(off). The KA3882C and KA3883C can operate within 100% duty cycle.

Parameters:

Technical/Catalog Information	KA3882C
Vendor	Fairchild Semiconductor
Category	Integrated Circuits (ICs)
Packaging	Tube
Package / Case	8-DIP
Power (Watts)	1W
Voltage - Input	12 ~ 30 V
Voltage - Output	-
Frequency Range	47 ~ 57kHz
Operating Temperature	0°C ~ 70°C
Output Isolation	-
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	KA3882C KA3882C