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R2A20124ASP-U0 Datasheet(PDF) 4 Page - Renesas Technology Corp |
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R2A20124ASP-U0 Datasheet(HTML) 4 Page - Renesas Technology Corp |
4 / 13 page R2A20124AFP/R2A20124ASP Preliminary REJ03D0928-0200 Rev.2.00 Page 4 of 12 Aug 03, 2010 Pin Functions LQFP-40 Pin No. SOP-20 Pin No. Pin Name Input/Output Pin Function 1 8 DELAY-1 Input/Output Delay time adjustor for the full-bridge control signal (OUT-A and B) 2 9 DELAY-2 Input/Output Delay time adjustor for the full-bridge control signal (OUT-C and D) 4 10 DELAY-3 Input/Output Delay time adjustor for the secondary control signal (OUT-E and F) 5 — SEC-CONT Input Synchronous rectification on/off control 6 — REMOTE Input Remote on/off control 7 11 VREF Output 5 V/20 mA output 9 12 VCC Input IC power supply input 13 13 OUT-F Output Secondary control signal 14 14 OUT-E Output Secondary control signal 17 15 OUT-D Output Full-bridge control signal 18 16 OUT-C Output Full-bridge control signal 19 17 OUT-B Output Full-bridge control signal 20 18 OUT-A Output Full-bridge control signal 22 — PGND — Ground level for the output signal 23 — SGND — Ground level for the small signal — 19 GND — Ground 24 20 RT Input/Output Timing resistor for the oscillator 27 1 SYNC Input/Output Synchronization I/O for the oscillator 29 2 RAMP-SLP Input/Output Ramp sloping adjustor 31 3 RAMP Input Ramp waveform set 33 4 CS Input Current sense signal input for OCP 34 — CS-OUT Output Current sense information amplifier output 36 5 COMP Output Error amplifier output 37 6 FB(–) Input Error amplifier negative input 38 7 SS Output Timing capacitor for soft start 3, 8, 10 to 12, 15, 16, 21, 25, 26, 28, 30, 32, 35, 39, 40 — N.C. — Open |
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