Texas Instruments

Description

The UC3842B, UC3843B series are high performance fixed frequency current mode controllers. They are specifically designed for. Off Line and DC DC olds for the UC3843B and UC3845B are 8.5 V and 7.9. V. The UC3842B and UC3843B can operate to duty cycles approaching 100%. A range of the zero to <. UNISONIC TECHNOLOGIES CO., LTD. 2 of 11 www.unisonic.com.tw. QW-R103- 012.F. MARKING. Package. UC3842B. UC3843B . DIP-8. UTC. UC3843B . 2. The UC3842B, UC3843B series are high performance fixed frequency current mode controllers. They are specifically designed for. Off-Line and dc-to-dc upon startup. UC3843 /5. UC384X does not include brown-out, soft-start and overload detection. the external implementation cost of these functions is $0.07 .