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SO-8.pngActive Low Reset output in
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The PT7A751X/752X/753X family microprocessor
(µP) supervisory circuits are targeted to
improve reliability and accuracy of power-supply
circuitry in µP’s systems. These devices reduce the
complexity and number of components required to
monitor power-supply and battery functions.
The main functions are:
1. Asserting reset output during power-up, power down
and brownout conditions for µP system.
2. Detecting power failure or low-battery
conditions with a 1.25V threshold detector.
3. Watchdog functions (not for PT7A753x)
| Fixed Detect Voltages (V) | 2.63, 2.93, 3.08, 4.38, 4.63 V |
|---|---|
| Adjustable Detect Voltage Reference Voltage (V) | N/A V |
| Number of Channels | 1 |
| Minimum Operating Voltage (V) | Vd+10% V |
| Maximum Input Voltage (V) | 5.5 V |
| Quiescent Current (µA) | 30 µA |
| Typical Time Delay (µs) | N/A µs |
| Reset Period (ms) | 200 ms |
| RESET Output (Active High) | No (Active High) |
| RESET Output (Active Low) | Yes (Active Low) |
| Manual RESET | Yes |
| Watchdog | Yes |
| Watchdog Time (s) | 1.6 s |
| Power Fail Comparator Threshold (V) | 1.25 V |
| Reset Output Topology | Push-Pull |
| Ambient Temperature Range (°C) | -40 to 85 °C |
Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents
