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R2A20121SP

Renesas Technology
Part Number R2A20121SP
Manufacturer Renesas Technology
Description Synchronous Phase Shift Full-Bridge Controller
Published Nov 8, 2010
Detailed Description R2A20121SP Synchronous Phase Shift Full-Bridge Control IC REJ03D0914-0100 Rev.1.00 Sep 29, 2008 Features • • • • • High...
Datasheet PDF File R2A20121SP PDF File

R2A20121SP
R2A20121SP

Overview
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.
in R2A20121SP Pin Arrangement SYNC RAMP CS COMP FB (+) FB (−) SS DELAY-1 DELAY-2 DELAY-3 1 2 3 4 5 6 7 8 9 10 (Top view) 20 19 18 17 16 15 14 13 12 11 RT GND OUT-A OUT-B OUT-C OUT-D OUT-E OUT-F VCC VREF...


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