UC3842G(2007) Просмотр технического описания (PDF) - Unisonic Technologies
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UC3842G 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 300µA 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
*Pb-free plating product number:
UC3842GL
ORDERING INFORMATION
Ordering Number
Normal
Lead Free Plating
UC3842G-D08-T
UC3842GL-D08-T
UC3842G-S08-R
UC3842GL-S08-R
UC3842G-S08-T
UC3842GL-S08-T
UC3842GL-D08-T
(1)Packing Type
(2)Package Type
(3)Lead Plating
Package
DIP-8
SOP-8
SOP-8
Packing
Tube
Tape Reel
Tube
(1) T: Tube, R: Tape Reel
(2) D08: DIP-8, S08: SOP-8
(3) L: Lead Free Plating, Blank: Pb/Sn
www.unisonic.com.tw
Copyright © 2007 Unisonic Technologies Co., Ltd
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