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R2A20124AFP-U0 Datasheet(PDF) 1 Page - Renesas Technology Corp |
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R2A20124AFP-U0 Datasheet(HTML) 1 Page - Renesas Technology Corp |
1 / 13 page R03DS0031EJ0300 Rev.3.00 Page 1 of 12 Mar 11, 2011 Preliminary Datasheet R2A20124AFP/R2A20124ASP Synchronous Phase Shift Full-Bridge Control IC Series Description The R2A20124AFP/R2A20124ASP controls a full-bridge phase shift circuit and secondary synchronous rectification. The R2A20124AFP/R2A20124ASP has adjustable delay time functions which make ZVS of primary side and make loss of body diode of primary switching device minimal. The R2A20124AFP/R2A20124ASP is based on HA16163/R2A20121. And RAMP slope compensation circuit is built- in as an additional function. Also its output driver circuits are improved to enlarge gate drive output voltage swing from VREF to VCC. In addition R2A20124AFP has ON/OFF function of synchronous rectification and includes amplifier which detect input current signal. Features Maximum ratings Supply voltage Vcc: 20 V Operating junction temperature Tj-opr: –40 to +125°C Electrical characteristics VFB feedback voltage VFB(–): 1.25 V 2.0% UVLO (Under Voltage Lockout) operation start voltage VH: 8.4 V 0.7 V UVLO operation shutdown voltage VL: 8.0 V 0.6 V UVLO hysteresis voltage dVUVL: 0.4 V 0.1 V Output voltage swing of OUT-A, B, C, D, and E for gate drive: GND to VCC Functions R2A20124AFP/R2A20124ASP Full-bridge phase-shift switching circuit with adjustable delay times Pulse by pulse current limit Synchronization I/O for the oscillator Ramp sloping adjustor Error amplifier built-in Soft start function R2A20124AFP Synchronous rectification on/off control Remote on/off control Amplified output of current sense input voltage: CS Package lineup Pb-free LQFP-40: R2A20124AFP Pb-free SOP-20: R2A20124ASP Ordering Information Part No. Package Name Package Code Taping Spec. R2A20124AFP-W0 2000 pcs./one taping product R2A20124AFP-W5 2000 pcs./one taping product R2A20124AFP-U0 — R2A20124AFP-U5 FP-40EV PLQP0040JB-C — R2A20124ASP-W0 2000 pcs./one taping product R2A20124ASP-W5 2000 pcs./one taping product R2A20124ASP-U0 — R2A20124ASP-U5 FP-20DAV PRSP0020DD-B — R03DS0031EJ0300 Rev.3.00 Mar 11, 2011 |
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