UC3842GP(2012) Просмотр технического описания (PDF) - Unisonic Technologies
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UC3842GP Datasheet PDF : 8 Pages
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UNISONIC TECHNOLOGIES CO., LTD
UC3842G
LINEAR INTEGRATED CIRCUIT
HIGH PERFORMANCE
CURRENT MODE
CONTROLLER
■ DESCRIPTION
The UTC UC3842G of high performance current mode
controller is specifically designed for off-line and DC-to-DC
converter applications offering the designer a cost effective
solution with minimal external components. This integrated
circuit features approximately 40μA start up current, a precision
reference trimmed the error amplifier input. Also included are
protective features consisting of input and reference
undervoltage lockouts each with hysteresis, cycle-by-cycle
current limiting, and so on.
■ FEATURES
* Low startup and operating current
* User defined switching frequency(Norm is 52kHz)
* Power-saving mode for low power
* Under voltage lockout with hysteresis
* Over voltage protection
* Latching PWM for Cycle-By-Cycle current limiting
* Internally trimmed reference with undervoltage lockout
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UC3842GL-S08-R
UC3842GP-S08-R
UC3842GL-S08-T
UC3842GP-S08-T
UC3842GL-D08-T
UC3842GP-D08-T
Package
SOP-8
SOP-8
DIP-8
Packing
Tape Reel
Tube
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www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., Ltd
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