Micro-processor (μP) 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
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A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
| PCN # | Issue Date | Implementation Date | Subject |
|---|---|---|---|
| PCN-2770 | 2025-10-30 | 2025-10-30 | Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products |
