High Accuracy and Open-drain and debounced Reset supervisory Circuit
Contact Sales
Log in or register to manage email notifications about changes to datasheets or PCNs for this part.
The series is 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 deasserted.
The PT7M6315USxx devices are open-drain RESET output. They can be pulled up to a voltage higher than VCC.
The serials come with factory-trimmed, reset threshold voltages in 100mV increments from 1.8V to 5V. Preset timeout periods of 200ms (typ.) for PT7M6315USxxD3, 1570ms (typical) for PT7M6315USxxD4, and 26ms for PT7M6315USxxD2 are available.
| Fixed Detect Voltages (V) | 1.8 to 5 V |
|---|---|
| Adjustable Detect Voltage Reference Voltage (V) | N/A V |
| Number of Channels | 1 |
| Minimum Operating Voltage (V) | 1 V |
| Maximum Input Voltage (V) | 5.5 V |
| Quiescent Current (µA) | 10 µA |
| Typical Time Delay (µs) | 0.01 µs |
| Reset Period (ms) | 1.4, 26, 200, 1570 ms |
| RESET Output (Active High) | No (Active High) |
| RESET Output (Active Low) | Yes (Active Low) |
| Manual RESET | Yes |
| Watchdog | No |
| Watchdog Time (s) | None s |
| Power Fail Comparator Threshold (V) | None V |
| Reset Output Topology | Open-Drain |
| Ambient Temperature Range (°C) | -40 to 85 °C |
Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents
