UCC3813-3 Series

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

Catalog

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 %

Catalog

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

Key Features

• 100-µA typical starting supply current500-µA typical operating supply currentOperation to 1 MHzInternal soft startInternal fault soft startInternal leading-edge blanking of the current-sense signal1-A totem-pole output70-ns typical response from current-sense to gate-drive output1.5% Tolerance Voltage ReferenceSame Pinout as the UCC3802 device, UC3842 device, and UC3842A device families100-µA typical starting supply current500-µA typical operating supply currentOperation to 1 MHzInternal soft startInternal fault soft startInternal leading-edge blanking of the current-sense signal1-A totem-pole output70-ns typical response from current-sense to gate-drive output1.5% Tolerance Voltage ReferenceSame Pinout as the UCC3802 device, UC3842 device, and UC3842A device families

Description

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. The UCC2813-x device series is specified for operation from –40°C to 85°C and the UCC3813-x device series is specified for operation from 0°C to 70°C. 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. The UCC2813-x device series is specified for operation from –40°C to 85°C and the UCC3813-x device series is specified for operation from 0°C to 70°C.