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UC3843A Datasheet Preview

UC3843A Datasheet

CURRENT MODE PWM CONTROLLER

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UNISONIC TECHNOLOGIES CO., LTD
UC3842A/3843A
LINEAR INTEGRATED CIRCUIT
CURRENT MODE PWM
CONTROL CIRCUITS
DESCRIPTION
The UTC UC3842A/3843A provide the necessary functions to
implement off-line or DC to DC fixed frequency current mode,
controlled switching circuits with minimal external components.
FEATURES
*Low Start Up Current ( Typical 0.12mA )
*Automatic Feed Forward Compensation
*Pulse-by-Pulse Current Limiting
*Under-voltage Lockout with Hysteresis
*Double Pulse Suppression
*High Current Totem Pole Output to Drive MOSFET Directly
*Internally Trimmed Band Gap Reference
*500kHz Operation
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UC3842AL-D08-T
UC3842AP-D08-T
UC3842AL-S08-R
UC3842AP-S08-R
UC3843AL-D08-T
UC3843AP-D08-T
UC3843AL-S08-R
UC3843AP-S08-R
Package
DIP-8
SOP-8
DIP-8
SOP-8
Packing
Tube
Tape Reel
Tube
Tape Reel
MARKING
Package
DIP-8
UC3842A
SOP-8
www.unisonic.com.tw
Copyright © 2019 Unisonic Technologies Co., Ltd
UC3843A
876 5
UTC
UC3843A
1 23 4
Date Code
L: Lead Free
P: Halogen Free
Lot Code
1 of 9
QW-R103-002.J




UTC

UC3843A Datasheet Preview

UC3843A Datasheet

CURRENT MODE PWM CONTROLLER

No Preview Available !

UC3842A/3843A
PIN CONFIGURATION
COMP 1
VFB 2
Current Sense 3
RT/CT 4
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
8 VREF
7 VCC
6 Output
5 GND
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 9
QW-R103-002.J


Part Number UC3843A
Description CURRENT MODE PWM CONTROLLER
Maker UTC
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UC3843A Datasheet PDF






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