UCC28C42DR

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Texas Instruments

INDUSTRIAL, 20-V, LOW-POWER CURRENT-MODE PWM CONTROLLER, 14.5-V/9-V UVLO, 100% DUTY CYCLE

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DocumentsUCC38C42 30-W Synchronous Buck Converter Reference Design UCCx8C4x Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA +13

UCC28C42DR

Active

Texas Instruments

INDUSTRIAL, 20-V, LOW-POWER CURRENT-MODE PWM CONTROLLER, 14.5-V/9-V UVLO, 100% DUTY CYCLE

Deep-Dive with AI

DocumentsUCC38C42 30-W Synchronous Buck Converter Reference Design UCCx8C4x Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA +13

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UCC28C42DR

Clock Sync	False
Control Features	Frequency Control
Duty Cycle (Max) [Max]	96 %
Frequency - Switching [Max]	1 MHz
Function	Step-Up, Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [custom]	-40 °C, 105 °C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SOIC
Synchronous Rectifier	False
Topology	Flyback, Boost, Forward Converter
Voltage - Supply (Vcc/Vdd) [Max]	18 V
Voltage - Supply (Vcc/Vdd) [Min]	9 V

UCC28C42-Q1 Series

Automotive, 20-V, low-power current-mode PWM controller, 14.5-V/9-V UVLO, 100% duty cycle

Part	Output Configuration	Duty Cycle (Max) [Max]	Output Type	Function	Supplier Device Package	Control Features	Output Phases	Topology	Number of Outputs	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Operating Temperature [custom]	Frequency - Switching [Max]	Package / Case	Package / Case [y]	Package / Case [x]	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Grade	Qualification
Texas Instruments UCC28C42D	Positive	96 %	Transistor Driver	Step-Up Step-Up/Step-Down	8-SOIC	Frequency Control	1	Boost Flyback Forward Converter	1	18 V	9 V	-40 °C 105 °C	1 MHz	8-SOIC	3.9 mm	0.154 in	Surface Mount
Texas Instruments UCC28C42QDRQ1	Positive	96 %	Transistor Driver	Step-Up/Step-Down	8-SOIC	Frequency Control	1	Flyback	1	18 V	9 V		1 MHz	8-SOIC	3.9 mm	0.154 in	Surface Mount	-40 °C	125 °C	Automotive	AEC-Q100
Texas Instruments UCC28C42DR	Positive	96 %	Transistor Driver	Step-Up Step-Up/Step-Down	8-SOIC	Frequency Control	1	Boost Flyback Forward Converter	1	18 V	9 V	-40 °C 105 °C	1 MHz	8-SOIC	3.9 mm	0.154 in	Surface Mount
Texas Instruments UCC28C42DG4	Positive	96 %	Transistor Driver	Step-Up Step-Up/Step-Down	8-SOIC	Frequency Control	1	Boost Flyback Forward Converter	1	18 V	9 V	-40 °C 105 °C	1 MHz	8-SOIC	3.9 mm	0.154 in	Surface Mount
Texas Instruments UCC28C42DRG4	Positive	96 %	Transistor Driver	Step-Up Step-Up/Step-Down	8-SOIC	Frequency Control	1	Boost Flyback Forward Converter	1	18 V	9 V	-40 °C 105 °C	1 MHz	8-SOIC	3.9 mm	0.154 in	Surface Mount

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	$ 0.97
		10	$ 0.86
		25	$ 0.82
		100	$ 0.67
		250	$ 0.63
		500	$ 0.56
		1000	$ 0.44
	Digi-Reel®	1	$ 0.97
		10	$ 0.86
		25	$ 0.82
		100	$ 0.67
		250	$ 0.63
		500	$ 0.56
		1000	$ 0.44
	Tape & Reel (TR)	2500	$ 0.41
		5000	$ 0.39
		12500	$ 0.37
		25000	$ 0.36
Texas Instruments	LARGE T&R	1	$ 0.65
		100	$ 0.54
		250	$ 0.39
		1000	$ 0.29

Description

General part information

UCC28C42-Q1 Series

The UCC28C4x-Q1 family devices are high performance current-mode PWM controllers.

The UCC28C4x-Q1 family supports a fixed-frequency, peak current-mode flyback implementation with UVLO and maximum duty-cycle limit options. UCC28C4X-Q1 can be configured with either primary-side regulation using an auxiliary winding or secondary-side regulation with the use of an opto-coupler. This family of devices features high frequency operation up to 1 MHz with low start up and operating currents, thus minimizing start up loss and operating power consumption for improved efficiency. The devices also feature a fast current sense to output delay time of 35 ns, and a ±1-A peak output current capability for driving large external MOSFETs directly.

The UCC28C4x-Q1 family is offered in the 8-pin SOIC (D) package.