Overview
The MAX809SEUR+TG035, produced by Analog Devices Inc./Maxim Integrated, is a microprocessor supervisory circuit designed to monitor the power supplies in microprocessor and digital systems. This 3-pin device is part of the MAX803/MAX809/MAX810 family and is known for its reliability, low cost, and simplicity in operation. It eliminates the need for external components and adjustments, making it a versatile choice for various supply voltages including +5V, +3.3V, +3.0V, and +2.5V.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| VCC Range | 1.0 to 5.5 | V |
| Supply Current (SOT23) | 17 to 100 | µA |
| Reset Timeout | 140ms (min) | ms |
| Operating Temperature | -40°C to +105°C | °C |
| Output Type | Push-Pull, Totem Pole | |
| Reset Type | Active Low | |
| Number of Voltages Monitored | 1 | |
| Package / Case | SOT-23-3 | |
| Voltage - Threshold | 2.93V | V |
Key Features
- Precision monitoring of +2.5V, +3V, +3.3V, and +5V power-supply voltages.
- Fully specified over temperature.
- Available in push-pull output configuration.
- 140ms minimum power-on-reset pulse width.
- Low supply current (typically 12µA).
- Guaranteed reset valid to VCC = +1V.
- Power supply transient immunity.
- No external components required.
- AEC-Q100 qualified.
- Compact 3-pin SC70 and SOT23 packages.
Applications
The MAX809SEUR+TG035 is suitable for a variety of applications, including:
- Microprocessor and digital system power supply monitoring.
- Embedded systems requiring reliable reset functionality.
- Automotive systems where AEC-Q100 qualification is necessary.
- Industrial control systems needing robust power monitoring.
- Consumer electronics requiring low-cost and reliable power supervision.
Q & A
- What is the primary function of the MAX809SEUR+TG035?
The primary function is to monitor the power supply voltage and assert a reset signal if the voltage falls below a preset threshold.
- What are the available output configurations for the MAX809?
The MAX809 has a push-pull output configuration.
- What is the minimum power-on-reset pulse width?
The minimum power-on-reset pulse width is 140ms.
- What is the typical supply current for the MAX809SEUR+TG035?
The typical supply current is 12µA.
- Is the MAX809SEUR+TG035 AEC-Q100 qualified?
- What are the available package types for the MAX809SEUR+TG035?
The available package types are SC70 and SOT23.
- What is the operating temperature range for the MAX809SEUR+TG035?
The operating temperature range is -40°C to +105°C.
- Does the MAX809SEUR+TG035 require external components for operation?
No, it does not require external components for operation.
- What is the voltage threshold for the MAX809SEUR+TG035?
The voltage threshold is 2.93V.
- Is the MAX809SEUR+TG035 suitable for automotive applications?
