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MAX706PCUA Datasheet(PDF) 10 Page - Maxim Integrated Products |
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MAX706PCUA Datasheet(HTML) 10 Page - Maxim Integrated Products |
10 / 15 page +3V Voltage Monitoring, Low-Cost µP Supervisory Circuits 10 ______________________________________________________________________________________ Ordering Information (continued) Chip Information PROCESS: CMOS sees 1.25V when VIN falls to the desired trip point (VTRIP). Resistor R3 adds hysteresis. R3 will typically be an order of magnitude greater than R1 and R2. The current through R1 and R2 should be at least 1µA to ensure that the 25nA (max) PFI input current does not shift the trip point significantly. R3 should be larger than 10kΩ to prevent it from loading down the PFO pin. Capacitor C1 adds noise rejection. Monitoring a Negative Voltage The power-fail comparator can be used to monitor a negative supply voltage using the circuit of Figure 8. When the negative supply is valid, PFO is low. When the negative supply voltage drops, PFO goes high. This circuit’s accuracy is affected by the PFI threshold toler- ance, the VCC voltage, and resistors R1 and R2. Bypassing VCC For noisy systems, bypass VCC with a 0.1µF capacitor to GND. PART † TEMP RANGE PIN- PACKAGE PKG CODE MAX706PEUA -40°C to +85°C 8 µMAX U8-1 MAX706PMJA -55°C to +125°C 8 CERDIP* J8-2 MAX706RCPA 0°C to +70°C 8 Plastic Dip P8-1 MAX706RCSA 0°C to +70°C 8 SO S8-2 MAX706RCUA 0°C to +70°C 8 µMAX U8-1 MAX706REPA -40°C to +85°C 8 Plastic Dip P8-1 MAX706RESA -40°C to +85°C 8 SO S8-2 MAX706REUA -40°C to +85°C 8 µMAX U8-1 MAX706RMJA -55°C to +125°C 8 CERDIP* J8-2 MAX706SCPA 0°C to +70°C 8 Plastic Dip P8-1 MAX706SCSA 0°C to +70°C 8 SO S8-2 MAX706SCUA 0°C to +70°C 8 µMAX U8-1 MAX706SEPA -40°C to +85°C 8 Plastic Dip P8-1 MAX706SESA -40°C to +85°C 8 SO S8-2 MAX706SEUA -40°C to +85°C 8 µMAX U8-1 MAX706SMJA -55°C to +125°C 8 CERDIP* J8-2 MAX706TCPA 0°C to +70°C 8 Plastic Dip P8-1 MAX706TCSA 0°C to +70°C 8 SO S8-2 MAX706TCUA 0°C to +70°C 8 µMAX U8-1 MAX706TEPA -40°C to +85°C 8 Plastic Dip P8-1 MAX706TESA -40°C to +85°C 8 SO S8-2 MAX706TEUA -40°C to +85°C 8 µMAX U8-1 MAX706TMJA -55°C to +125°C 8 CERDIP* J8-2 MAX706APEPA -40°C to +85°C 8 Plastic Dip P8-1 MAX706APESA -40°C to +85°C 8 SO S8-2 MAX706APEUA -40°C to +85°C 8 µMAX U8-1 MAX706AREPA -40°C to +85°C 8 Plastic Dip P8-1 MAX706ARESA -40°C to +85°C 8 SO S8-2 MAX706AREUA -40°C to +85°C 8µMAX U8-1 MAX706ASEPA -40°C to +85°C 8 Plastic Dip P8-1 PART † TEMP RANGE PIN- PACKAGE PKG CODE MAX706ASESA -40°C to +85°C 8 SO S8-2 MAX706ASEUA -40°C to +85°C 8 µMAX U8-1 MAX706ATEPA -40°C to +85°C 8 Plastic Dip P8-1 MAX706ATESA -40°C to +85°C 8 SO S8-2 MAX706ATEUA -40°C to +85°C 8 µMAX U8-1 MAX708RCPA 0°C to +70°C 8 Plastic Dip P8-1 MAX708RCSA 0°C to +70°C 8 SO S8-2 MAX708RCUA 0°C to +70°C 8 µMAX U8-1 MAX708REPA -40°C to +85°C 8 Plastic Dip P8-1 MAX708RESA -40°C to +85°C 8 SO S8-2 MAX708REUA -40°C to +85°C 8 µMAX U8-1 MAX708RMJA -55°C to +125°C 8 CERDIP* J8-2 MAX708SCPA 0°C to +70°C 8 Plastic Dip P8-1 MAX708SCSA 0°C to +70°C 8 SO S8-2 MAX708SCUA 0°C to +70°C 8 µMAX U8-1 MAX708SEPA -40°C to +85°C 8 Plastic Dip P8-1 MAX708SESA -40°C to +85°C 8 SO S8-2 MAX708SEUA -40°C to +85°C 8 µMAX U8-1 MAX708SMJA -55°C to +125°C 8 CERDIP* J8-2 MAX708TCPA 0°C to +70°C 8 Plastic Dip P8-1 MAX708TCSA 0°C to +70°C 8 SO S8-2 MAX708TCUA 0°C to +70°C 8 µMAX U8-1 MAX708TEPA -40°C to +85°C 8 Plastic Dip P8-1 MAX708TESA -40°C to +85°C 8 SO S8-2 MAX708TEUA -40°C to +85°C 8 µMAX U8-1 MAX708TMJA -55°C to +125°C 8 CERDIP* J8-2 †SO, µMAX, and PDIP packages are available in lead-free. *Contact factory for availability and processing to MIL-STD-883. **Future product—contact factory for availability. |
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