Overview
The MAX810SQ293T1G is a cost-effective system supervisor circuit designed by onsemi to monitor the power supply voltage (VCC) in digital systems and provide a reset signal to the host processor when necessary. This device is part of the MAX810 series, which features an active-high RESET output. It is optimized for low power consumption and is suitable for a wide range of applications, including battery-powered devices and critical microprocessor power supply monitoring.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Power Supply Voltage (VCC to GND) | -0.3 | 6.0 | V | |
| RESET Output Voltage (CMOS) | -0.3 | VCC + 0.3 | V | |
| Input Current, VCC | 20 | mA | ||
| Output Current, RESET | 20 | mA | ||
| Supply Current (VCC = 3.3 V) | 0.5 | μA | ||
| Detector Voltage Threshold | 2.93 | V | ||
| Reset Active TimeOut Period | 140 | 460 | ms | |
| Operating Temperature | -40 | 105 | °C | |
| Package Type | SOT-23, SC-70 |
Key Features
- Precision VCC monitoring for supplies from 1.2 V to 4.9 V in 100 mV steps.
- Active-high RESET output for the MAX810 series.
- Low supply current of 0.5 μA (VCC = 3.3 V), making it suitable for battery-powered applications.
- No external components required.
- Wide operating temperature range: -40°C to 105°C.
- VCC transient immunity to reject fast transient glitches.
- Guaranteed minimum power-on reset pulse widths available (1 ms, 20 ms, 100 ms, and 140 ms).
- RESET output guaranteed to VCC = 1.0 V.
- Compatible with hot plug applications.
- Pb-free and RoHS compliant.
Applications
- Computers
- Embedded systems
- Battery-powered equipment
- Critical microprocessor power supply monitoring
Q & A
- What is the primary function of the MAX810SQ293T1G?
The primary function is to monitor the power supply voltage (VCC) in digital systems and provide a reset signal to the host processor when necessary. - What type of RESET output does the MAX810SQ293T1G have?
The MAX810SQ293T1G has an active-high RESET output. - What is the typical supply current of the MAX810SQ293T1G at VCC = 3.3 V?
The typical supply current is 0.5 μA. - What is the operating temperature range of the MAX810SQ293T1G?
The operating temperature range is -40°C to 105°C. - Does the MAX810SQ293T1G require any external components?
No, it does not require any external components. - How does the MAX810SQ293T1G handle VCC transients?
The device is optimized to reject fast transient glitches on the VCC line. - What are the available reset timeout periods for the MAX810SQ293T1G?
The available reset timeout periods are 1 ms, 20 ms, 100 ms, and 140 ms. - Is the MAX810SQ293T1G Pb-free and RoHS compliant?
Yes, it is Pb-free and RoHS compliant. - What package types are available for the MAX810SQ293T1G?
The device is available in SOT-23 and SC-70 packages. - How does the RESET output behave during power-down?
The RESET output remains valid to VCC = 1.0 V; below this voltage, the output becomes an open circuit.
