Overview
The MAX809MTRG, produced by onsemi, is a cost-effective system supervisor circuit designed to monitor the supply voltage (VCC) in digital systems and provide a reset signal to the host processor when necessary. This device is part of the MAX809 and MAX810 series, which are optimized to reject fast transient glitches on the VCC line. The MAX809MTRG requires no external components and is suitable for battery-powered applications due to its low supply current of 0.5 µA at VCC = 3.3 V.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Power Supply Voltage (VCC to GND) | VCC | -0.3 | - | 6.0 | V |
| Supply Current (VCC = 3.3 V) | ICC | - | 0.5 | 1.2 | µA |
| Reset Threshold Voltage | VTH | Varies by model (e.g., 4.83 V for MAX809SN490 at 25°C) | - | - | V |
| Reset Active Time-Out Period | tRP | 1 ms, 20 ms, 100 ms, 140 ms | - | - | ms |
| Operating Temperature | TA | -40°C | - | 105°C | °C |
| Package Type | - | - | - | SOT-23, SC-70 | - |
Key Features
- Precision VCC monitoring for 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V supplies.
- Precision monitoring voltages from 1.2 V to 4.9 V available in 100 mV steps.
- Four guaranteed minimum power-on reset pulse widths (1 ms, 20 ms, 100 ms, and 140 ms).
- RESET output guaranteed to VCC = 1.0 V.
- Low supply current (0.5 µA at VCC = 3.3 V).
- VCC transient immunity.
- No external components required.
- Wide operating temperature range: -40°C to 105°C.
- Pb-free and RoHS compliant.
Applications
- Computers.
- Embedded Systems.
- Battery Powered Equipment.
- Critical Microprocessor Power Supply Monitoring.
- Automotive Electronics (e.g., Body Electronics, Braking, Infotainment, Instrument Cluster, Navigation, Occupant Comfort, Occupant Protection, Powertrain).
Q & A
- What is the primary function of the MAX809MTRG?
The MAX809MTRG is designed to monitor the supply voltage (VCC) in digital systems and provide a reset signal to the host processor when necessary.
- What are the available package types for the MAX809MTRG?
The MAX809MTRG is available in SOT-23 and SC-70 packages.
- What is the typical supply current of the MAX809MTRG at VCC = 3.3 V?
The typical supply current is 0.5 µA at VCC = 3.3 V.
- What are the guaranteed minimum power-on reset pulse widths for the MAX809MTRG?
The guaranteed minimum power-on reset pulse widths are 1 ms, 20 ms, 100 ms, and 140 ms.
- Is the MAX809MTRG suitable for battery-powered applications?
- What is the operating temperature range of the MAX809MTRG?
The operating temperature range is -40°C to 105°C.
- Does the MAX809MTRG require any external components?
No, it does not require any external components.
- Is the MAX809MTRG Pb-free and RoHS compliant?
- What types of systems can the MAX809MTRG be used in?
- How does the MAX809MTRG handle transient glitches on the VCC line?
CC line.
