UC2843DTR/80869

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Unitrode

UC2843 SWITCHING CONTROLLER

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UC2843DTR/80869

Active

Unitrode

UC2843 SWITCHING CONTROLLER

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Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics commom to parts in this series

Specification	UC2843DTR/80869	UC2843 Series

Clock Sync	False	False
Control Features	Frequency Control	Frequency Control
Duty Cycle (Max) [Max]	97 %	96 - 97 %
Function	Step-Up, Step-Up/Step-Down, Step-Down	Step-Up, Step-Up/Step-Down, Step-Down
Mounting Type	Surface Mount	Through Hole, Surface Mount
Number of Outputs	1	1
Operating Temperature [Max]	85 °C	85 - 125 °C
Operating Temperature [Min]	-40 °C	-40 °C
Output Configuration	Positive, Isolation Capable	Positive, Isolation Capable
Output Phases	1	1
Output Type	Transistor Driver	Transistor Driver
Package / Case	14-SOIC	8-DIP, 14-SOIC, 20-LCC (J-Lead)
Package / Case	-	0.3 in
Package / Case	-	7.62 mm
Package / Case [x]	0.154 in	0.154 in
Package / Case [y]	3.9 mm	3.9 mm
Supplier Device Package	-	8-PDIP, 20-PLCC (9x9)
Synchronous Rectifier	False	False
Topology	Flyback, Buck-Boost, Forward, Boost, Buck	Flyback, Boost, Forward, Buck, Buck-Boost
Voltage - Supply (Vcc/Vdd) [Max]	28 V	28 - 30 V
Voltage - Supply (Vcc/Vdd) [Min]	12 V	7.6 - 12 V

UC2843 Series

UC2843 SWITCHING CONTROLLER

Part	Output Configuration	Function	Supplier Device Package	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Output Phases	Output Type	Topology	Number of Outputs	Package / Case	Package / Case	Package / Case	Duty Cycle (Max) [Max]	Control Features	Package / Case [x]	Package / Case [y]
Unitrode UC2843ANNTR	Isolation Capable, Positive	Step-Down, Step-Up, Step-Up/Step-Down	8-PDIP	7.6 V	30 V	85 °C	-40 °C	Through Hole	1	Transistor Driver	Boost, Buck, Flyback, Forward	1	0.3 in	8-DIP	7.62 mm	96 %	Frequency Control
Unitrode UC2843DTR/80869	Isolation Capable, Positive	Step-Down, Step-Up, Step-Up/Step-Down		12 V	28 V	85 °C	-40 °C	Surface Mount	1	Transistor Driver	Boost, Buck, Buck-Boost, Flyback, Forward	1		14-SOIC		97 %	Frequency Control	0.154 in	3.9 mm
Unitrode UC2843AQ	Isolation Capable, Positive	Step-Down, Step-Up, Step-Up/Step-Down	20-PLCC (9x9)	7.6 V	30 V	125 ¯C	-40 °C	Surface Mount	1	Transistor Driver	Boost, Buck, Flyback, Forward	1		20-LCC (J-Lead)		96 %	Frequency Control
Unitrode UC2843NNTR	Isolation Capable, Positive	Step-Down, Step-Up, Step-Up/Step-Down	8-PDIP	12 V	28 V	85 °C	-40 °C	Through Hole	1	Transistor Driver	Boost, Buck, Buck-Boost, Flyback, Forward	1	0.3 in	8-DIP	7.62 mm	97 %	Frequency Control

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Bulk	417	$ 0.72

Description

General part information

UC2843 Series

Boost, Buck, Buck-Boost, Flyback, Forward Regulator Positive, Isolation Capable Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 14-SOIC

Documents

Technical documentation and resources