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R2A20121SP - Synchronous Phase Shift Full-Bridge Controller

Description

Note: All voltage, current, time shown in the diagram is typical value unless otherwise noted.

UVLO UVLO (Under Voltage Lockout Operation) is a function that halts operation of the IC in the event of a low IC power supply voltage.

Features

  • High frequency operation; oscillator frequency = 2 MHz Max Full-bridge phase-shift switching circuit with adjustable delay times Integrated secondary synchronous rectification control with adjustable delay times Pulse by pulse current limit Package: TSSOP-20 Illustrative Circuit VIN Vout + DC 5 V DC 5 V DC 5 V DC 5 V DC 5 V Vbias (DC 12 V).
  • VCC OUT OUT CS RAMP -A -B OUT -C OUT OUT OUT -D -E -F COMP R2A20121 VREF GND RT SYNC SS FB.

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Datasheet Details

Part number R2A20121SP
Manufacturer Renesas
File Size 324.27 KB
Description Synchronous Phase Shift Full-Bridge Controller
Datasheet download datasheet R2A20121SP Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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R2A20121SP Synchronous Phase Shift Full-Bridge Control IC REJ03D0914-0100 Rev.1.00 Sep 29, 2008 Features • • • • • High frequency operation; oscillator frequency = 2 MHz Max Full-bridge phase-shift switching circuit with adjustable delay times Integrated secondary synchronous rectification control with adjustable delay times Pulse by pulse current limit Package: TSSOP-20 Illustrative Circuit VIN Vout + DC 5 V DC 5 V DC 5 V DC 5 V DC 5 V Vbias (DC 12 V) − VCC OUT OUT CS RAMP -A -B OUT -C OUT OUT OUT -D -E -F COMP R2A20121 VREF GND RT SYNC SS FB (+) FB (−) DELAY DELAY DELAY -3 -1 -2 HAT3043C HAT3042C HAT3004R Note: The above circuit is reference example. Please confirm the operation when designing the system. REJ03D0914-0100 Rev.1.00 Sep 29, 2008 Page 1 of 27 www.DataSheet.
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