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TEXAS INSTRUMENTS  UC2879DW  Resonant PWM Controller, 4 outputs, 11V-18V supply, 2.2V/10mA out, 500 kHz, SOIC-20

TEXAS INSTRUMENTS UC2879DW
Technical Data Sheet (10.05KB) EN See all Technical Docs

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Product Overview

The UC2879DW is a Phase Shift Resonant Controller implements control of a bridge power stage by phase-shifting the switching of one half-bridge with respect to the other, allowing constant frequency pulse-width modulation in combination with resonant, zero-voltage switching for high efficiency performance at high frequencies. This family of circuits may be configured to provide control in either voltage or current-mode operation, with a separate over-current shutdown for fast fault protection. A programmable time delay is provided to insert a dead-time at the turn-on of each output stage. This delay, providing time to allow the resonant switching action, is independently controllable for each output pair. With the oscillator capable of operation at frequencies in excess of 2MHz, overall switching frequencies to 1MHz are practical.
  • Programmable output turn-on delay
  • Zero delay available
  • Compatible with voltage mode or current mode topologies
  • 10MHz Error amplifier
  • Pin programmable undervoltage lockout
  • Soft-start control
  • Outputs active low during UVLO
  • Green product and no Sb/Br

 

Product Information

Input Voltage:
12V
Output Voltage:
2.2V
Output Current:
10mA
Supply Voltage Min:
11V
Supply Voltage Max:
18V
Controller IC Case Style:
SOIC
No. of Pins:
20Pins
Frequency:
500kHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
Automotive Qualifications Standard:
-
MSL:
MSL 2 - 1 year
Supply Voltage Range:
11V to 18V
SVHC:
No SVHC (15-Jun-2015)
Digital IC Case Style:
SOIC

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Applications

  • Power Management;
  • Industrial

Legislation and Environmental

Moisture Sensitivity Level:
MSL 2 - 1 year
RoHS Compliant:
Yes
Authorized Distributor