MAX6796TPLD2+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, high-accuracy, adjustable threshold voltage
• Package: Thin, small-outline package (TDFN)
• Essence: Monitors the power supply voltage and generates a reset signal when the voltage falls below a certain threshold
• Packaging/Quantity: Tape and reel packaging, 3000 units per reel

Specifications

• Supply Voltage Range: 1.5V to 5.5V
• Threshold Voltage Options: Adjustable from 0.4V to 5V in 100mV steps
• Reset Timeout Period: Fixed or adjustable options available
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Detailed Pin Configuration

The MAX6796TPLD2+T has a total of six pins:

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Positive power supply input
5. TH: Threshold voltage selection pin
6. NC: No connection

Functional Features

• Accurate Voltage Monitoring: The MAX6796TPLD2+T continuously monitors the power supply voltage and asserts the reset signal when the voltage drops below the programmed threshold.
• Adjustable Threshold Voltage: The threshold voltage can be easily adjusted using an external resistor connected to the TH pin, allowing flexibility in setting the desired voltage level for triggering the reset signal.
• Manual Reset Input: The MR pin provides a manual reset option, allowing the user to assert the reset signal externally.
• Power-On Reset Delay: The device includes a power-on reset delay circuitry to ensure stable operation during power-up.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - Adjustable threshold voltage provides flexibility in voltage monitoring - Low quiescent current minimizes power consumption - Small package size saves board space

Disadvantages: - Fixed or adjustable reset timeout period may not suit all applications - Limited number of pins restricts additional functionalities

Working Principles

The MAX6796TPLD2+T operates by comparing the power supply voltage with the programmed threshold voltage. When the supply voltage drops below the threshold, the internal comparator triggers the reset signal, which remains asserted until the voltage rises above the threshold or a manual reset is applied.

The device utilizes an internal voltage reference and a precision comparator to accurately monitor the supply voltage. The threshold voltage can be adjusted using an external resistor connected to the TH pin, allowing customization according to the specific application requirements.

Detailed Application Field Plans

The MAX6796TPLD2+T finds applications in various fields, including:

1. Microcontrollers: Ensuring reliable operation by monitoring the power supply voltage and initiating a reset when necessary.
2. Industrial Control Systems: Providing voltage supervision for critical components, preventing erratic behavior due to low voltage conditions.
3. Battery-Powered Devices: Monitoring battery voltage to prevent damage from over-discharge and ensuring safe operation.
4. Automotive Electronics: Protecting sensitive electronic components from voltage fluctuations and ensuring proper functioning.

Detailed and Complete Alternative Models

1. MAX6797TPLD2+T: Similar to MAX6796TPLD2+T but with additional features such as adjustable reset timeout period.
2. MAX6798TPLD2+T: Higher voltage rating (up to 36V) for applications requiring higher supply voltages.
3. MAX6799TPLD2+T: Enhanced accuracy and temperature stability for critical applications.

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