UCC3813DTR-2

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Texas Instruments

ECONOMY BICMOS 1MHZ CURRENT MODE PWM WITH 12.5V/8.3V UVLO, 100% DUTY CYCLE, 0C TO 70C

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DocumentsDifferences Between the UCC3813 and the UCC3800 PWM Families Power Management Guide 2018 (Rev. R)+9

UCC3813DTR-2

Active

Texas Instruments

ECONOMY BICMOS 1MHZ CURRENT MODE PWM WITH 12.5V/8.3V UVLO, 100% DUTY CYCLE, 0C TO 70C

Deep-Dive with AI

DocumentsDifferences Between the UCC3813 and the UCC3800 PWM Families Power Management Guide 2018 (Rev. R)+9

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UCC3813DTR-2

Control Features	Frequency Control
Duty Cycle	99 %
Frequency - Switching	1 MHz
Internal Switch(s)	False
Mounting Type	Surface Mount
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-55 °C
Output Isolation	Either
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SOIC
Topology	Flyback, Boost, Forward, Buck
Voltage - Start Up	12.5 V
Voltage - Supply (Vcc/Vdd) [Max]	12 V
Voltage - Supply (Vcc/Vdd) [Min]	8.3 V

UCC3813-3 Series

Economy low power BICMOS 1MHz current mode PWM with 7.2V/6.9V UVLO and 100% duty cycle, 0C to 70C

Part	Topology	Supplier Device Package	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Control Features	Package / Case	Package / Case [y]	Package / Case [x]	Output Phases	Function	Operating Temperature [Max]	Operating Temperature [Min]	Output Configuration	Output Type	Mounting Type	Duty Cycle (Max)	Number of Outputs	Frequency - Switching	Voltage - Start Up	Output Isolation	Duty Cycle	Package / Case [custom]	Package / Case [custom]	Duty Cycle (Max) [Max]	Package / Case	Package / Case
Texas Instruments UCC3813DTR-5	Boost Flyback Forward Converter	8-SOIC	3.6 V	12 V	Frequency Control	8-SOIC	3.9 mm	0.154 in	1	Step-Up Step-Up/Step-Down	70 °C	0 °C	Positive	Transistor Driver	Surface Mount	49 %	1	31 kHz
Texas Instruments UCC3813DTR-2	Boost Buck Flyback Forward	8-SOIC	8.3 V	12 V	Frequency Control	8-SOIC	3.9 mm	0.154 in			150 °C	-55 °C			Surface Mount			1 MHz	12.5 V	Either	99 %
Texas Instruments UCC3813PW-4	Boost Buck Flyback Forward	8-TSSOP	8.3 V	12 V	Frequency Control	8-TSSOP					150 °C	-55 °C			Surface Mount			1 MHz	12.5 V	Non-Isolated	49 %	0.173 "	4.4 mm
Texas Instruments UCC3813PWTR-1	Boost Flyback Forward Converter	8-TSSOP	7.4 V	12 V	Frequency Control	8-TSSOP			1	Step-Up Step-Up/Step-Down	70 °C	0 °C	Positive	Transistor Driver	Surface Mount	49 %	1	46 kHz				0.173 "	4.4 mm
Texas Instruments UCC3813PWTR-3G4	Boost Flyback Forward Converter	8-TSSOP	3.6 V	12 V	Frequency Control	8-TSSOP			1	Step-Up Step-Up/Step-Down	70 °C	0 °C	Positive	Transistor Driver	Surface Mount		1	31 kHz				0.173 "	4.4 mm	99 %
Texas Instruments UCC3813N-1	Boost Flyback Forward Converter	8-PDIP	7.4 V	12 V	Frequency Control	8-DIP			1	Step-Up Step-Up/Step-Down	70 °C	0 °C	Positive	Transistor Driver	Through Hole	49 %	1	46 kHz							0.3 in	7.62 mm
Texas Instruments UCC3813PWTR-5	Boost Flyback Forward Converter	8-TSSOP	3.6 V	12 V	Frequency Control	8-TSSOP			1	Step-Up Step-Up/Step-Down	70 °C	0 °C	Positive	Transistor Driver	Surface Mount	49 %	1	31 kHz				0.173 "	4.4 mm
Texas Instruments UCC3813D-1G4	Boost Flyback Forward Converter	8-SOIC	7.4 V	12 V	Frequency Control	8-SOIC	3.9 mm	0.154 in	1	Step-Up Step-Up/Step-Down	70 °C	0 °C	Positive	Transistor Driver	Surface Mount	49 %	1	46 kHz
Texas Instruments UCC3813PW-5	Boost Flyback Forward Converter	8-TSSOP	3.6 V	12 V	Frequency Control	8-TSSOP			1	Step-Up Step-Up/Step-Down	70 °C	0 °C	Positive	Transistor Driver	Surface Mount	49 %	1	31 kHz				0.173 "	4.4 mm
Texas Instruments UCC3813PWTR-0	Boost Flyback Forward Converter	8-TSSOP	6.9 V	12 V	Frequency Control	8-TSSOP			1	Step-Up Step-Up/Step-Down	70 °C	0 °C	Positive	Transistor Driver	Surface Mount		1	46 kHz				0.173 "	4.4 mm	99 %

Pricing

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

Distributor	Package	Quantity	$

Arrow	N/A	2500	$ 0.80
Digikey	Cut Tape (CT)	1	$ 2.06
		10	$ 1.85
		25	$ 1.74
		100	$ 1.49
		250	$ 1.40
		500	$ 1.22
		1000	$ 1.01
	Digi-Reel®	1	$ 2.06
		10	$ 1.85
		25	$ 1.74
		100	$ 1.49
		250	$ 1.40
		500	$ 1.22
		1000	$ 1.01
	Tape & Reel (TR)	2500	$ 0.94
		5000	$ 0.91
Texas Instruments	LARGE T&R	1	$ 1.55
		100	$ 1.28
		250	$ 0.92
		1000	$ 0.69

Description

General part information

UCC3813-3 Series

The UCC3813-x device family of high-speed, low-power integrated circuits contains all of the control and drive components required for off-line and DC-to-DC fixed-frequency current-mode switching power supplies with minimal parts count.

These devices have the same pin configuration as the UC384x device family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC3813-x device family offers a variety of package options, temperature-range options, choice of maximum duty cycle, and choice of critical voltage levels. Devices with lower reference voltage such as the UCC3813-3 and UCC3813-5 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC3813-2 device and UCC3813-4 device make these ideal choices for use in off-line power supplies.