UC2844N

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Texas Instruments

SINGLE ENDED 500KHZ CURRENT MODE PWM CONTROLLER WITH 16V/10V UVLO 50% DUTY CYCLE, -40C TO 85C

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Search across all available documentation for this part.

DocumentsUCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802 +12

UC2844N

Active

Texas Instruments

SINGLE ENDED 500KHZ CURRENT MODE PWM CONTROLLER WITH 16V/10V UVLO 50% DUTY CYCLE, -40C TO 85C

Deep-Dive with AI

DocumentsUCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802 +12

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UC2844N

Mounting Type	Through Hole
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	0.3 in
Package / Case	8-DIP
Package / Case	7.62 mm
Supplier Device Package	8-PDIP

UC2844A Series

30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 40°C to 85°C

Part	Current - Supply	Operating Temperature [Max]	Operating Temperature [Min]	Applications	Package / Case [x]	Package / Case [y]	Package / Case	Mounting Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Voltage - Input [Min]	Voltage - Input [Max]	Supplier Device Package	Package / Case	Package / Case
Texas Instruments UC2844ADTR	11 mA	85 °C	-40 °C	PWM Controller	0.154 in	3.9 mm	14-SOIC	Surface Mount	30 VDC	10 VDC	-3 V	6.3 V
Texas Instruments UC2844D8TR	11 mA	85 °C	-40 °C	PWM Controller	0.154 in	3.9 mm	8-SOIC	Surface Mount	28 V	12 V	-3 V	6.3 V	8-SOIC
Texas Instruments UC2844D	11 mA	85 °C	-40 °C	PWM Controller	0.154 in	3.9 mm	14-SOIC	Surface Mount	28 V	12 V	-3 V	6.3 V
Texas Instruments UC2844DTR	11 mA	85 °C	-40 °C	PWM Controller	0.154 in	3.9 mm	14-SOIC	Surface Mount	28 V	12 V	-3 V	6.3 V
Texas Instruments UC2844AQD8R	11 mA	85 °C	-40 °C	PWM Controller	0.154 in	3.9 mm	8-SOIC	Surface Mount	30 VDC	10 VDC	-3 V	6.3 V	8-SOIC
Texas Instruments UC2844ADTRG4	11 mA	85 °C	-40 °C	PWM Controller	0.154 in	3.9 mm	14-SOIC	Surface Mount	30 VDC	10 VDC	-3 V	6.3 V
Texas Instruments UC2844D8G4	11 mA	85 °C	-40 °C	PWM Controller	0.154 in	3.9 mm	8-SOIC	Surface Mount	28 V	12 V	-3 V	6.3 V	8-SOIC
Texas Instruments UC2844N		85 °C	-40 °C				8-DIP	Through Hole					8-PDIP	0.3 in	7.62 mm
Texas Instruments UC2844AQDR	11 mA	85 °C	-40 °C	PWM Controller	0.154 in	3.9 mm	14-SOIC	Surface Mount	30 VDC	10 VDC	-3 V	6.3 V
Texas Instruments UC2844DG4	11 mA	85 °C	-40 °C	PWM Controller	0.154 in	3.9 mm	14-SOIC	Surface Mount	28 V	12 V	-3 V	6.3 V

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 1.55
		10	$ 1.38
		50	$ 1.31
		100	$ 1.08
		250	$ 1.01
		500	$ 0.89
		1000	$ 0.70
		2500	$ 0.66
		5000	$ 0.62
Texas Instruments	TUBE	1	$ 1.09
		100	$ 0.84
		250	$ 0.62
		1000	$ 0.44

Description

General part information

UC2844A Series

The UCx84xA family of control devices is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5mA, oscillator discharge is trimmed to 8.3mA, and during UVLO, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.

Documents

Technical documentation and resources

Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B)

Application note

U-111, Practical Considerations in Current Mode Power Supplies

Application note

U-100A UC3842/3/4/5 Provides Low-Cost Current-Mode Control

Application note

Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (Rev. A)

Application note

UCx84x Current-Mode PWM Controllers datasheet (Rev. H)

Data sheet

DN-26 UC3842A Low-Cost Start-up and Fault Protection Circuit

Application note

UC2844N

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UC2844N

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Technical Specifications

UC2844A Series

Pricing

Description

UC2844A Series

Documents

UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers

DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802

DN-65 Considerations in Powering BiCMOS ICs

Understanding Buck Power Stages In Switchmode Power Supplies

Understanding Boost Power Stages In Switchmode Power Supplies

DN-27 UC1842/UC1842A Family - Summary of Functional Differences

DN-40 The Effects of Oscillator Discharge Current Variations on Maximum Duty

Power Management Guide 2018 (Rev. R)

Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B)

U-111, Practical Considerations in Current Mode Power Supplies

U-100A UC3842/3/4/5 Provides Low-Cost Current-Mode Control

Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (Rev. A)

UCx84x Current-Mode PWM Controllers datasheet (Rev. H)

DN-26 UC3842A Low-Cost Start-up and Fault Protection Circuit

UC2844A Series