UC2845ADTR

Active

Texas Instruments

30V, 1A, 500KHZ CURRENT MODE PWM CONTROLLER WITH 8.4V/7.6V UVLO 50% DUTY CYCLE, 40°C TO 85°C

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsPower Management Guide Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B)+11

UC2845ADTR

Active

Texas Instruments

30V, 1A, 500KHZ CURRENT MODE PWM CONTROLLER WITH 8.4V/7.6V UVLO 50% DUTY CYCLE, 40°C TO 85°C

Deep-Dive with AI

DocumentsPower Management Guide Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B)+11

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UC2845ADTR

Applications	PWM Controller
Current - Supply	11 mA
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	14-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Voltage - Input [Max]	6.3 V
Voltage - Input [Min]	-3 V
Voltage - Supply [Max]	30 VDC
Voltage - Supply [Min]	7.6 V

UC2845AQ Series

Automotive single ended 500KHz current mode PWM controller with 8.5V/7.9V UVLO 50% duty cycle

Part	Current - Supply	Applications	Mounting Type	Supplier Device Package	Voltage - Supply [Max]	Voltage - Supply [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input [Min]	Voltage - Input [Max]	Package / Case	Package / Case [y]	Package / Case [x]	Package / Case	Package / Case
Texas Instruments UC2845AQD8R	11 mA	PWM Controller	Surface Mount	8-SOIC	30 VDC	7.9 V	-40 °C	125 °C	-3 V	6.3 V	8-SOIC	3.9 mm	0.154 in
Texas Instruments UC2845AQD	11 mA	PWM Controller	Surface Mount		30 VDC	7.9 V	-40 °C	125 °C	-3 V	6.3 V	14-SOIC	3.9 mm	0.154 in
Texas Instruments UC2845NG4	11 mA	PWM Controller	Through Hole	8-PDIP	28 V	12 V	-40 °C	85 °C	-3 V	6.3 V	8-DIP			0.3 in	7.62 mm
Texas Instruments UC2845ADTR	11 mA	PWM Controller	Surface Mount		30 VDC	7.6 V	-40 °C	85 °C	-3 V	6.3 V	14-SOIC	3.9 mm	0.154 in
Texas Instruments UC2845D8TRG4	11 mA	PWM Controller	Surface Mount	8-SOIC	28 V	12 V	-40 °C	85 °C	-3 V	6.3 V	8-SOIC	3.9 mm	0.154 in
Texas Instruments UC2845AD8TRG4	11 mA	PWM Controller	Surface Mount	8-SOIC	30 VDC	7.6 V	-40 °C	85 °C	-3 V	6.3 V	8-SOIC	3.9 mm	0.154 in
Texas Instruments UC2845AD8G4	11 mA	PWM Controller	Surface Mount	8-SOIC	30 VDC	7.6 V	-40 °C	85 °C	-3 V	6.3 V	8-SOIC	3.9 mm	0.154 in
Texas Instruments UC2845AD8	11 mA	PWM Controller	Surface Mount	8-SOIC	30 VDC	7.6 V	-40 °C	85 °C	-3 V	6.3 V	8-SOIC	3.9 mm	0.154 in
Texas Instruments UC2845AQDR	11 mA	PWM Controller	Surface Mount		30 VDC	7.9 V	-40 °C	125 °C	-3 V	6.3 V	14-SOIC	3.9 mm	0.154 in
Texas Instruments UC2845DTRG4	11 mA	PWM Controller	Surface Mount		28 V	12 V	-40 °C	85 °C	-3 V	6.3 V	14-SOIC	3.9 mm	0.154 in

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 1.17
		10	$ 1.05
		25	$ 0.99
		100	$ 0.82
		250	$ 0.76
		500	$ 0.67
		1000	$ 0.53
	Digi-Reel®	1	$ 1.17
		10	$ 1.05
		25	$ 0.99
		100	$ 0.82
		250	$ 0.76
		500	$ 0.67
		1000	$ 0.53
	Tape & Reel (TR)	2500	$ 0.50
		5000	$ 0.47
		12500	$ 0.45
Texas Instruments	LARGE T&R	1	$ 0.98
		100	$ 0.75
		250	$ 0.56
		1000	$ 0.40

Description

General part information

UC2845AQ Series

The UC2842A/3A/4A/5A family of control ICs is a pin for pin compatible improved version of the UC2842/3/4/5 family. Providing the necessary features to control current mode switched mode power supplies, this family has the following improved features. Start up current is designed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.

The difference between members of this family are shown in the table below.