Low power consumption with 200ms delay time supervisory Circuit
Contact Sales
Log in or register to manage email notifications about changes to datasheets or PCNs for this part.
The PT7M64xx series are µP supervisory circuits with a minimum reset timeout period of 120ms. Each circuit includes a precise bandgap reference; a comparator, a reset timeout circuit, internally trimmed resistor networks that set specified trip thresholds, and an internal 5% threshold hysteresis circuit (see the Block Diagram). Output is asserted when VCC falls below the internal VTH- and remains asserted until VCC rises above VTH+ (VTH+ = VTH-×1.05) after a reset timeout period. These devices provide excellent circuit reliability and low cost by eliminating external components and adjustments when monitoring normal systems voltage from +1.8V to +5V in 100mV increments. The series are voltage detectors with a propagation delay of 35µs.
The family is available with four output stage options: push-pull with active-low output, push-pull with active high output, open drain with active-low output and bidirection port with active-low output and pushbutton reset input. These devices specified over the -40°C to +85°C temperature range.
| 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 | No |
| Maximum Input Voltage (V) | 5.5 |
| Minimum Operating Voltage (V) | 1.2 |
| Number of Channels | 1 |
| Power Fail Comparator Threshold (V) | None |
| Quiescent Current (µA) | 0.6 |
| RESET Output (Active High) | No |
| RESET Output (Active Low) | Yes |
| Reset Output Topology | Open-Drain |
| Reset Period (ms) | 260 |
| Typical Time Delay (µs) | 35 |
| Watchdog | No |
| Watchdog Time (s) | None |
