Overview
The MAX809HTRG, 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 MAX809HTRG features an active-low RESET output and is available in SOT-23 and SC-70 packages, making it suitable for a variety of applications, including battery-powered equipment and critical microprocessor power supply monitoring.
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 (Vin Decreasing) | VTH | 4.48 | 4.53 | 4.58 | V |
| Reset Active TimeOut Period | tRP | 1 | 20 | 100, 140 | ms |
| Operating Temperature | TA | -40 | - | 105 | °C |
| RESET Output Voltage Low (No Load) | VOL | - | 0.3 | - | V |
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 of 0.5 µA (VCC = 3.3 V).
- VCC transient immunity.
- No external components required.
- Wide operating temperature range: -40°C to 105°C.
- Available in SOT-23 and SC-70 packages.
- Pb-free and RoHS compliant.
Applications
- Computers
- Embedded Systems
- Battery Powered Equipment
- Critical Microprocessor Power Supply Monitoring
- Automotive systems (e.g., body electronics, braking, infotainment, instrument cluster, navigation, occupant comfort, occupant protection, powertrain)
Q & A
- What is the primary function of the MAX809HTRG?
The MAX809HTRG 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 reset timeout periods for the MAX809HTRG?
The reset timeout periods available are 1 ms, 20 ms, 100 ms, and 140 ms.
- What is the typical supply current of the MAX809HTRG at VCC = 3.3 V?
The typical supply current is 0.5 µA.
- What is the operating temperature range of the MAX809HTRG?
The operating temperature range is -40°C to 105°C.
- Does the MAX809HTRG require any external components?
No, the MAX809HTRG does not require any external components.
- What are the available package types for the MAX809HTRG?
The device is available in SOT-23 and SC-70 packages.
- Is the MAX809HTRG Pb-free and RoHS compliant?
- What are some typical applications of the MAX809HTRG?
Typical applications include computers, embedded systems, battery-powered equipment, and critical microprocessor power supply monitoring, among others.
- How does the MAX809HTRG handle transient glitches on the VCC line?
The MAX809HTRG is optimized to reject fast transient glitches on the VCC line.
- What is the reset output type of the MAX809HTRG?
The MAX809HTRG has an active-low RESET output.
