UCC2813D-5G4
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Texas Instruments UCC2813D-5G4

Manufacturer No:
UCC2813D-5G4
Manufacturer:
Texas Instruments
Package:
Tube
Description:
IC REG CTRLR MULT TOPOLOGY 8SOIC
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Product Introduction

Overview

The UCC2813D-5G4 is a member of the UCC2813-x family of high-speed, low-power integrated circuits from Texas Instruments. These devices are designed for use in off-line and DC-to-DC fixed-frequency current-mode switching power supplies. They offer a range of features that make them suitable for various power supply applications, including battery-operated systems and industrial power supplies. The UCC2813D-5G4 is characterized by its low starting and operating supply currents, internal soft start, and leading-edge blanking of the current-sense signal, among other features.

Key Specifications

ParameterTypical ValueMinimum ValueMaximum ValueUnit
Starting Supply Current100 µA--µA
Operating Supply Current500 µA--µA
Oscillator FrequencyUp to 1 MHz--Hz
Reference Voltage4 V3.94 V4.06 VV
Turn-On Threshold4.1 V--V
Turn-Off Threshold3.6 V--V
Maximum Duty Cycle50%48%50%%
Current Sense Gain1.65 V/V1.1 V/V1.8 V/VV/V
Output Current±1 A--A
Operating Temperature Range-40°C to 85°C-40°C85°C°C

Key Features

  • Low starting supply current: typically 100 µA
  • Low operating supply current: typically 500 µA
  • Internal soft start and fault soft start
  • Leading-edge blanking of the current-sense signal
  • 1-A totem-pole output
  • 70-ns typical response from current-sense to gate-drive output
  • 1.5% tolerance voltage reference
  • Pinout compatible with UC3842 and UC3842A families
  • Up to 1-MHz oscillator frequency
  • Internal full-cycle restart delay
  • Low self-biasing output during UVLO
  • Available in surface-mount and PDIP packages

Applications

  • Switch mode power supplies (SMPS)
  • DC-DC converters
  • Power modules
  • Industrial power supplies
  • Battery-operated power supplies

Q & A

  1. What is the typical starting supply current of the UCC2813D-5G4? The typical starting supply current is 100 µA.
  2. What is the operating supply current of the UCC2813D-5G4? The typical operating supply current is 500 µA.
  3. What is the reference voltage for the UCC2813D-5G4? The reference voltage is 4 V with a tolerance of 1.5%.
  4. What is the maximum duty cycle for the UCC2813D-5G4? The maximum duty cycle is 50%.
  5. What is the gain of the current sense amplifier in the UCC2813D-5G4? The gain of the current sense amplifier is typically 1.65 V/V.
  6. What is the operating temperature range for the UCC2813D-5G4? The operating temperature range is from -40°C to 85°C.
  7. What types of packages are available for the UCC2813D-5G4? The device is available in surface-mount and PDIP packages.
  8. Does the UCC2813D-5G4 have internal soft start and fault recovery features? Yes, it has internal soft start and fault soft start features.
  9. What is the response time from current-sense to gate-drive output in the UCC2813D-5G4? The typical response time is 70 ns.
  10. Is the UCC2813D-5G4 pinout compatible with other families of PWM controllers? Yes, it is pinout compatible with the UC3842 and UC3842A families.

Product Attributes

Output Type:Transistor Driver
Function:Step-Up, Step-Up/Step-Down
Output Configuration:Positive
Topology:Boost, Flyback, Forward Converter
Number of Outputs:1
Output Phases:1
Voltage - Supply (Vcc/Vdd):3.6V ~ 12V
Frequency - Switching:- 
Duty Cycle (Max):49%
Synchronous Rectifier:No
Clock Sync:No
Serial Interfaces:- 
Control Features:Frequency Control
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Surface Mount
Package / Case:8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:8-SOIC
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Similar Products

Part Number UCC2813D-5G4 UCC2813D-0G4
Manufacturer Texas Instruments Texas Instruments
Product Status Discontinued at Digi-Key Discontinued at Digi-Key
Output Type Transistor Driver Transistor Driver
Function Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down
Output Configuration Positive Positive
Topology Boost, Flyback, Forward Converter Boost, Flyback, Forward Converter
Number of Outputs 1 1
Output Phases 1 1
Voltage - Supply (Vcc/Vdd) 3.6V ~ 12V 6.9V ~ 12V
Frequency - Switching - -
Duty Cycle (Max) 49% 99%
Synchronous Rectifier No No
Clock Sync No No
Serial Interfaces - -
Control Features Frequency Control Frequency Control
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC 8-SOIC

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