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KA3843 Datasheet PDF

Part Series:
KA3843 Series
Category:
PWM Controllers
Description:
FAIRCHILD SEMICONDUCTOR KA3843B PWM Controller, 25V-12V supply, 500kHz, 5V/200mA out, DIP-8
Updated Time: 2023/01/13 02:03:37 (UTC + 8)

KA3843 PWM Controllers Datasheet PDF

KA3843 Datasheet PDF PWM Controllers

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KA3843B - Fairchild Specifications

TYPE
DESCRIPTION
Mounting Style
Through Hole
Frequency
500 kHz
Number of Pins
8 Pin
Supply Voltage (DC)
12.0V (min)
Case/Package
DIP-8
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KA3843B - Fairchild Function Overview

The KA3843B is a fixed frequency current-mode PWM Controller for off-line and DC-to-DC converter applications with minimum external components. This integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totem pole output ideally suited for driving a power MOSFET. The KA3843B is 8.5V (on) and 7.9V (off) and it can operate within 100% duty cycle.
Low start up current
Maximum duty clamp
UVLO with hysteresis
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