Overview
The CAT809MTBI-GT3 is a 3-pin microprocessor power supply supervisor produced by onsemi. This device is part of the CAT809 series, which includes the CAT803 and CAT810, designed to monitor power supplies in digital systems. The CAT809MTBI-GT3 is a direct replacement for the MAX809 in applications operating over the industrial temperature range. It features a push-pull RESET output with an active LOW configuration, ensuring reliable power supply monitoring and reset functionality.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Nominal Threshold Voltage | 4.38 V | V |
| Reset Threshold Voltage (Typical at 25°C) | 4.31 - 4.45 V | V |
| Reset Active Timeout Period | 140 - 240 ms | ms |
| Supply Current (Typical at 25°C) | 6 - 15 µA | µA |
| Operating Temperature Range | -40°C to +85°C | °C |
| Storage Temperature Range | -65°C to +105°C | °C |
| Package Type | SOT-23 | - |
| RESET Output Configuration | Push-Pull Active LOW | - |
Key Features
- Precision monitoring of power supplies for +5.0 V, +3.3 V, +3.0 V, and +2.5 V systems with various threshold levels.
- Push-pull RESET output with active LOW configuration.
- Reset signal asserted for at least 140 ms after the power supply voltage rises above the threshold.
- Fast transient immunity to ignore short-duration power supply transients.
- Low power supply current of 6 - 15 µA.
- Industrial temperature range operation from -40°C to +85°C.
- Available in compact SOT-23 and SC-70 packages.
- Pb-free and RoHS compliant.
Applications
- Computers, servers, and laptops.
- Cable modems and wireless communications devices.
- Embedded control systems.
- White goods and power meters.
- Intelligent instruments.
- PDAs and handheld equipment.
Q & A
- What is the primary function of the CAT809MTBI-GT3?
The primary function of the CAT809MTBI-GT3 is to monitor the power supply in digital systems and generate a reset signal if the power supply voltage falls below a preset threshold level.
- What type of RESET output does the CAT809MTBI-GT3 have?
The CAT809MTBI-GT3 features a push-pull RESET output with an active LOW configuration.
- What is the nominal threshold voltage for the CAT809MTBI-GT3?
The nominal threshold voltage for the CAT809MTBI-GT3 is 4.38 V.
- How long does the reset signal remain asserted after the power supply voltage rises above the threshold?
The reset signal remains asserted for at least 140 ms after the power supply voltage rises above the threshold.
- What is the operating temperature range of the CAT809MTBI-GT3?
The operating temperature range of the CAT809MTBI-GT3 is from -40°C to +85°C.
- Is the CAT809MTBI-GT3 Pb-free and RoHS compliant?
- What types of packages are available for the CAT809MTBI-GT3?
The CAT809MTBI-GT3 is available in SOT-23 and SC-70 packages.
- How does the CAT809MTBI-GT3 handle power supply transients?
The CAT809MTBI-GT3 has fast transient immunity to ignore short-duration power supply transients.
- What is the typical supply current of the CAT809MTBI-GT3?
The typical supply current of the CAT809MTBI-GT3 is 6 - 15 µA.
- Can the CAT809MTBI-GT3 be used in place of the MAX809?
