MAX6795TPLD2+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 and controls the voltage level in electronic systems
• Packaging/Quantity: Tape and reel packaging, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: Adjustable from 0.4V to 5V in 100mV steps
• Operating Temperature Range: -40°C to +125°C
• Quiescent Current: 3µA (typical)
• Output Type: Active-low, push-pull or open-drain
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Power-On Reset Delay: 20ms (typical)

Detailed Pin Configuration

The MAX6795TPLD2+T has a total of 6 pins:

1. GND: Ground reference for the IC.
2. RESET#: Active-low reset output.
3. MR#: Manual reset input.
4. VCC: Positive supply voltage input.
5. TH: Threshold voltage adjustment pin.
6. NC: No connection pin.

Functional Features

• Voltage Monitoring: The MAX6795TPLD2+T continuously monitors the supply voltage and asserts the reset signal when it falls below the programmed threshold voltage.
• 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.
• Power-On Reset: The IC provides a power-on reset delay of 20ms, ensuring proper initialization of the system during power-up.
• Reset Timeout: The reset signal remains asserted for a programmable timeout period, allowing sufficient time for the system to stabilize before resuming normal operation.
• Manual Reset: The MR# pin allows for a manual reset input, enabling external control over the reset signal.

Advantages and Disadvantages

Advantages: - Low-power consumption - High accuracy in voltage monitoring - Adjustable threshold voltage for flexibility - Small package size for space-constrained applications

Disadvantages: - Limited number of threshold voltage options (100mV steps) - No built-in hysteresis feature for noise immunity

Working Principles

The MAX6795TPLD2+T operates by comparing the supply voltage with the programmed threshold voltage. When the supply voltage drops below the threshold, the reset output is asserted, indicating a power failure or an out-of-range condition. The reset signal remains active for a programmable timeout period, allowing the system to stabilize before resuming normal operation. The threshold voltage can be adjusted using an external resistor connected to the TH pin, providing flexibility in setting the desired voltage level.

Detailed Application Field Plans

The MAX6795TPLD2+T finds applications in various electronic systems where voltage monitoring and control are critical. Some potential application fields include:

1. Battery-Powered Devices: Ensuring proper shutdown or low-battery indication when the battery voltage drops below a certain level.
2. Industrial Control Systems: Monitoring power supply voltages in industrial automation equipment to prevent damage or data loss during voltage fluctuations.
3. Automotive Electronics: Detecting undervoltage conditions in automotive systems to protect sensitive components and ensure reliable operation.
4. Medical Equipment: Providing voltage supervision in medical devices to ensure patient safety and prevent malfunctions due to power supply issues.

Detailed and Complete Alternative Models

1. MAX6796TPLD2+T: Similar to MAX6795TPLD2+T but with additional features such as adjustable reset timeout and watchdog timer functionality.
2. MAX6797TPLD2+T: Higher voltage range (up to 16V) and extended temperature range (-40°C to +150°C) compared to MAX6795TPLD2+T.
3. MAX6798TPLD2+T: Dual-channel voltage supervisor with independent threshold voltage settings for each channel.

(Note: The above alternative models are just examples and not an exhaustive list of all available alternatives.)

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