UC2843ANNTR

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Unitrode

UC2843 SWITCHING CONTROLLER

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Unitrode

UC2843 SWITCHING CONTROLLER

Technical Specifications

Parameters and characteristics commom to parts in this series

Specification	UC2843ANNTR	UC2843 Series

Clock Sync	False	False
Control Features	Frequency Control	Frequency Control
Duty Cycle (Max) [Max]	96 %	96 - 97 %
Function	Step-Up, Step-Up/Step-Down, Step-Down	Step-Up, Step-Up/Step-Down, Step-Down
Mounting Type	Through Hole	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	0.3 in	0.3 in
Package / Case	8-DIP	8-DIP, 14-SOIC, 20-LCC (J-Lead)
Package / Case	7.62 mm	7.62 mm
Package / Case	-	0.154 in
Package / Case	-	3.9 mm
Supplier Device Package	8-PDIP	8-PDIP, 20-PLCC (9x9)
Synchronous Rectifier	False	False
Topology	Flyback, Boost, Forward, Buck	Flyback, Boost, Forward, Buck, Buck-Boost
Voltage - Supply (Vcc/Vdd) [Max]	30 V	28 - 30 V
Voltage - Supply (Vcc/Vdd) [Min]	7.6 V	7.6 - 12 V

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

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

Distributor	Package	Quantity	$

Digikey	Bulk	460	$ 0.65

General part information

Boost, Buck, Flyback, Forward Regulator Positive, Isolation Capable Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 8-PDIP

Technical documentation and resources