SP703 SIPEX [Sipex Corporation], SP703 Datasheet
SP703
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SP703 Summary of contents
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... Pin Compatible Upgrades to MAX703/MAX704 DESCRIPTION The SP703/704 devices are microprocessor ( P) supervisory circuits that integrate a myriad of components involved in discrete solutions to monitor power-supply and battery-control functions in P and digital systems. The series will significantly improve system reliability and operational efficiency when compared to discrete solutions. The features of the SP703/704 devices include a manual reset input reset and backup-battery switchover, and power- failure warning ...
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... All Other Inputs.................................20mA Rate of Rise ..................100V BATT Continuous Power Dissipation.......500mW Storage Temperature.......- +160 C Lead Temperature(soldering,10sec).................+300 C ESD Rating.............................4kV Human Body Model SPECIFICATIONS V =4.75v to 5.50V for SP703 4.50V to 5.50V for SP704 ...
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... SPECIFICATIONS (continued) V =4.75V to 5.50V for SP703 4 5.50V for SP704 ...
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... BATT Pin 8 — V OUT V CC will be switched to V 20mV greater than V 20mV above V nected to V vents repeated switching if V slowly. SP703/704 Low Power Microprocessor Supervisory 4 CIRCUITRY RESET RESET GENERATOR 1.25V 1.25V — Backup-Battery Input. When BATT falls below the reset threshold, V ...
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... Temperature 212 V = Step, CC 210 V =2.8V BATT 208 206 204 202 200 -60 - 120 150 Temperature Deg. C SP703/704 Low Power Microprocessor Supervisory 5 PFI Threshold vs. Temperature 1.256 V =5V CC 1.254 V =0 BATT NO LOAD ON PFO 1.252 1.250 1.248 1.246 -60 - 120 150 Temperature Deg ...
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... CC V =0V BATT Slope=0.6 100 IOUT (mA) Figure Vs. Output Current CC OUT div 0V RESET 0V 1sec/div Figure 3A. SP703 RESET Output Voltage vs. Supply Voltage SP703/704DS/07 1000 V BATT V CC Slope=5 100 100 1000 Figure 2. V BATT BATT ...
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... V CC +5V +4V RESET + s/div Figure 4A. SP703 RESET Response Time +1.3V PFI +1.2V PFO 5V 0V 500ns/div Figure 5A. Power-Fail Comparator Response Time (FALL) SP703/704DS/ Figure 4B. Circuit for the RESET Response Time BATT PFI +1.25V Figure 5B. Circuit for the Power-Fail Comparator ...
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... OUT 0V +5V PFO PFI = 3.0V BATT Figure 7. Timing Diagram SP703/704DS/ BATT PFI +1.25V Figure 6B. Circuit for the Power-Fail Comparator Response Time (RISE) 3.0V SP703/704 Low Power Microprocessor Supervisory PFO 1K 30pF t RS © Copyright 2000 Sipex Corporation ...
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... FEATURES The SP703/704 devices provide four key func- tions battery backup switching for CMOS RAM, CMOS microprocessors, or other logic reset output during power-up, power-down and brownout conditions reset pulse if the manual reset has been pulled below 0.8V for at least 150ns. ...
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... Reset Threshold = 4.65V in SP703 Reset Threshold = 4.40V in SP704 Figure 9. BACKUP-BATTERY Switchover Block Diagram SP703/704DS/07 Backup-Battery Switchover In the event of a brownout or power failure, it may be necessary to preserve the contents of RAM. With a backup battery installed at V the RAM is assured to have power if V ...
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... Figure 12. Backup Power Source Using High Capacity Capacitor with SP703 and a +5V 5% Supply above the reset threshold and 0.5V above V V from V CC less than 0.5V above V Leakage current through the capacitor charging ...
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... Figure 15. When the negative rail is valid, PFO is low. When the negative supply voltage drops, PFO goes high. This circuit's accuracy is affected by the PFI threshold tolerance, the V voltage, and the resistors, R1 and R2. CC SP703/704 Low Power Microprocessor Supervisory Since there is OUT CC does not need to be switched. A ...
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... P reset I/ Figure 16. Buffer the RESET output to other system components. SP703/704DS/07 Buffered RESET connects to System Components RESET GND TRIP R 2 Figure 16. Interfacing to Microprocessors with Bidirectional RESET I/O V- SP703/704 Low Power Microprocessor Supervisory 13 + RESET 4.7K GND © Copyright 2000 Sipex Corporation ...
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... D (9.017/10.160) E 0.300/0.325 (7.620/8.255) E1 0.240/0.280 (6.096/7.112) 0.115/0.150 L (2.921/3.810) 0°/ 15° Ø (0°/15°) SP703/704 Low Power Microprocessor Supervisory 14 DUAL–IN–LINE (NARROW) C Ø 0.300 BSC A (7.620 BSC) © Copyright 2000 Sipex Corporation ...
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... B 0.014/0.019 (0.35/0.49) D 0.189/0.197 (4.80/5.00) E 0.150/0.157 (3.802/3.988) e 0.050 BSC (1.270 BSC) H 0.228/0.244 (5.801/6.198) h 0.010/0.020 (0.254/0.498) L 0.016/0.050 (0.406/1.270) Ø 0°/8° (0°/8°) SP703/704 Low Power Microprocessor Supervisory 15 Ø L © Copyright 2000 Sipex Corporation ...
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... Model SP703CN.......................................................... +70 C....................................................8-Pin NSOIC SP703CP........................................................ +70 C.........................................................8-Pin PDIP SP703EN......................................................- +85 C.....................................................8-Pin NSOIC SP703EP.......................................................- +85 C....................................................... 8-Pin PDIP SP704CN........................................................ +70 C......................................................8-Pin NSOIC SP704CP........................................................ +70 C......................................................... 8-Pin PDIP SP704EN......................................................- +85 C................................................... ..8-Pin NSOIC SP704EP.......................................................- +85 C....................................................... 8-Pin PDIP Please consult the factory for pricing and availability on a Tape-On-Reel option ...