UCC3813D-3 Part Information

Details for UCC3813D-3 by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Part Description

The UCC3813-x device family of high-speed, lowpower integrated circuits contains all of the control and drive components required for off-line and DC-toDC 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.

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Part Features

  • 1-A Totem-Pole Output
  • 1.5% Tolerance Voltage Reference
  • 100-u00b5A Typical Starting Supply Current
  • 500-u00b5A Typical Operating Supply Current
  • 70-ns Typical Response from Current-Sense to Gate-Drive Output
  • Internal Fault Soft Start
  • Internal Leading-Edge Blanking of the Current- Sense Signal
  • Internal Soft Start
  • Operation to 1 MHz
  • Same Pinout as the UCC3802 Device, UC3842

Part Specifications

Input Voltage -
Output Voltage 4.06V
Output Current 200mA
Supply Voltage Min 0V
Supply Voltage Max 10V
Controller IC Case Style SOIC
No. of Pins 8Pins
Frequency 1MHz
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Base Number 3813
Controller Type PWM
IC Temperature Range Commercial
Operating Temperature Range 0°C to +70°C
Output Current Max 1A
Output Energy per Cycle 20µJ
Output Type Totem Pole
Power Dissipation Pd 650mW
Supply Voltage Range 0V to 10V
Termination Type Surface Mount Device
RoHS Compliant

Alternative Part Descriptions

  • PMIC; PWM controller; 1A; 31kHz÷1MHz; Channels: 1; SO8; 0÷99% | Transfer Multisort Elektronik
  • Economy low power BICMOS 1MHz current mode PWM with 4.1V/3.6V UVLO, 100% duty cycle, 0C to 70C | Texas Instruments

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