Part Number: UC3845BN
File Name: uc3844b.pdf
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UC2842B/3B/4B/5B UC3842B/3B/4B/5B HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
Part Number: UC3845BN
Abstract:
The UC384xB family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockout featuring start-up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the offstate.
Other Part Numbers:
UC2842B, UC2842B/3B/4B/5B, UC2842BD1, UC2842BN, UC2843BD1, UC2843BN, UC2844BD1, UC2844BN, UC2845BD1, UC2845BN, UC284XB, UC3842B, UC3842B/3B/4B/5B, UC3842BD1, UC3842BN, UC3843B, UC3843BD1, UC3843BN, UC3844B, UC3844BD1, UC3844BN, UC3845B, UC3845BD1, UC3845BN, UC384XB, UCX842/44, UCX842B/44B, UCX843/45, UCX843B/45B, UCX84XAs
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