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UC1875-SP - Phase Shift Resonant Controller

Datasheet Summary

Description

The UC1875-SP 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.

Features

  • 1 QML-V Qualified, SMD 5962-94555.
  • Rad-Tolerant: 50 kRad (Si) TID (1).
  • Zero to 100% Duty Cycle Control.
  • Programmable Output Turn-On Delay.
  • Compatible with Voltage or Current Mode Topologies.
  • Practical Operation at Switching Frequencies to 1 MHz.
  • Four 2-A Totem Pole Outputs.
  • 10-MHz Error Amplifier.
  • Undervoltage Lockout (UVLO).
  • Low Startup Current.
  • 150 µA.
  • Outputs Active Low During UVLO.

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Datasheet preview – UC1875-SP

Datasheet Details

Part number UC1875-SP
Manufacturer Texas Instruments
File Size 0.98 MB
Description Phase Shift Resonant Controller
Datasheet download datasheet UC1875-SP Datasheet
Additional preview pages of the UC1875-SP datasheet.

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Full PDF Text Transcription

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community UC1875-SP SLUSAQ9B – DECEMBER 2011 – REVISED DECEMBER 2015 UC1875-SP Rad-Tolerant Class-V, Phase Shift Resonant Controller 1 Features •1 QML-V Qualified, SMD 5962-94555 • Rad-Tolerant: 50 kRad (Si) TID (1) • Zero to 100% Duty Cycle Control • Programmable Output Turn-On Delay • Compatible with Voltage or Current Mode Topologies • Practical Operation at Switching Frequencies to 1 MHz • Four 2-A Totem Pole Outputs • 10-MHz Error Amplifier • Undervoltage Lockout (UVLO) • Low Startup Current – 150 µA • Outputs Active Low During UVLO • Soft-Start Control • Latched Overcurrent Comparator With Full Cycle Restart • Trimmed Reference 2 Applications Power FPGAs (1) Radiation tolerance is a typical value based u
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