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HA16103FPK Datasheet(PDF) 2 Page - Renesas Technology Corp |
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HA16103FPK Datasheet(HTML) 2 Page - Renesas Technology Corp |
2 / 19 page HA16103FPJ/FPK Rev.3.00 Jun 15, 2005 page 2 of 18 Pin Arrangement P-RUN GND NC NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 NC (Top view) Rf Cf R CR R VOadj VOUT STBY V RES NMI C V V NC STBYadj VNMIadj RES CONT CC Pin Functions No. Pin Name Description 1 NC NC pin 2 P-RUN P-RUN signal input pin for watchdog timer 3 Rf Connect resistor Rf. Frequency bandwidth of the filter circuit depends on Rf 4 Cf Connect resistor Cf. Frequency bandwidth of the filter circuit depends on Cf 5 RR Connect resistor RR. Reset-signal power-on time depends on RR 6 CR Connect resistor CR. Reset-signal power-on time depends on CR 7 GND Ground 8 Voadj 5-V reference voltage fine-tuning pin. Connect a resistor between this pin and GND. The value of output voltage is given by VOUT = {1 + 5.34/(R1 // 2.0)} × Voadj Unit for R1: kΩ 9 VOUT Connect the collector of an external PNP-type transistor. The pin supplies 5-V regulated voltage for internal circuit 10 NC NC pin 11 NC NC pin 12 VCONT The external PNP-type transistor’s base control pin 13 VCC Supply voltage pin. Operating supply voltage range is 6.0 to 40 V. 14 CRES If the voltage of VOUT pin declines to less than Detection voltage(1) (because of an instant power cut or other cause), NMI signals are generated. If tRES ≈ 0.5•Rf•CRES(sec) has passed since then, RES signals are generated. If the voltage of VOUT pin inclines to more than Detection voltage(1) (in case of re- start from LVI state), NMI signals are stop. tr ≈ 0.5•Rf•CRES(sec) has passed since then, RES signals are stop. Connect capacitor CRES between this pin and GND to adjust the RES signals delay time(tRES, tr). If delay time is unnecessary, make this pin open (tRES = 2 µs typ. tr = 10 µs typ. at open) 15 VNMIadj NMI detection voltage fine-tuning pin. Connect a resistor between this pin and VOUT pin or GND. The value of output voltage is given by VNMI = {1 + (R2 // 25.5)/(R3 // 10.6)} × VNMIadj. Unit for R2, R3: kΩ 16 NMI NMI signal output pin. Connect to pin NMI of the microcomputer 17 RES RES signal output pin. Connect to pin RES of the microcomputer 18 VSTBYadj STBY detection voltage tuning pin. Connect a resistor between this pin and VOUT or GND. The value of output voltage is given by VSTBY = 1.89 × {1 + 21/(7.9 + 8.85 // R4)} × VSTBYadj Unit for R4: kΩ 19 STBY STBY signal output pin. Connect to pin STBY of the microcomputer 20 NC NC pin |
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