High Accuracy and Bidirectional output and debounced Reset supervisory Circuit
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The series are designed to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments, and a debounced manual reset input.
This device performs a single function: it asserts a reset signal whenever the VCC supply voltage falls below a preset threshold or whenever manual reset is asserted. Reset remains asserted for an internally programmed interval (reset timeout period) after VCC has risen above the reset threshold or manual reset is de-asserted.
PT7M6314USxx are bidirectional output, allowing it to be directly connected to µP with bidirectional reset inputs. The serials come with factory-trimmed reset threshold voltages in 100mV increments from 2.5V to 5V. Preset timeout periods of 200ms and 1570ms (typ.) are available.
| Adjustable Detect Voltage Reference Voltage (V) | N/A |
|---|---|
| Ambient Temperature Range (°C) | -40 to 85 |
| Fixed Detect Voltages (V) | 1.8 to 5 |
| Manual RESET | Yes |
| Maximum Input Voltage (V) | 5.5 |
| Minimum Operating Voltage (V) | 1 |
| Number of Channels | 1 |
| Power Fail Comparator Threshold (V) | None |
| Quiescent Current (µA) | 10 |
| RESET Output (Active High) | No |
| RESET Output (Active Low) | Yes |
| Reset Output Topology | Bi-Direct |
| Reset Period (ms) | 1.4, 26, 200, 1570 |
| Typical Time Delay (µs) | 0.01 |
| Watchdog | No |
| Watchdog Time (s) | None |
