Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.
3D-MSOP-8.png
Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.
SO-8.pngMicro-processor (?P) Supervisory Circuits
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The PT7A7611-7615/7621-7625/7631-7635 family micro-processor (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 PT7A7631-7635).
| 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) | 2.7 V |
| Maximum Input Voltage (V) | 5.5 V |
| Quiescent Current (µA) | 10 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
