MIC1232M

Product Overview

Category: Integrated Circuit (IC)

Use: The MIC1232M is a voltage supervisor IC that monitors the power supply voltage of electronic systems. It ensures proper system operation by generating a reset signal when the voltage falls below a predefined threshold.

Characteristics: - Monitors power supply voltage - Generates reset signal - Low power consumption - Small form factor - Wide operating temperature range

Package: The MIC1232M is available in a small outline integrated circuit (SOIC) package.

Essence: The essence of the MIC1232M is to provide reliable voltage monitoring and reset generation for electronic systems.

Packaging/Quantity: The MIC1232M is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Reset Threshold Voltage: Adjustable from 2.55V to 4.63V
• Reset Timeout Period: Adjustable from 140ms to 1120ms
• Quiescent Current: 10µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MIC1232M has a total of 8 pins, which are assigned specific functions as follows:

1. VCC: Power supply input
2. GND: Ground reference
3. MR: Manual reset input
4. RESET: Reset output
5. GND: Ground reference
6. VCC: Power supply input
7. TH: Threshold adjust input
8. TO: Timeout adjust input

Functional Features

• Voltage Monitoring: The MIC1232M continuously monitors the power supply voltage and compares it to the user-adjustable threshold voltage.
• Reset Generation: When the power supply voltage falls below the threshold voltage for a user-defined timeout period, the MIC1232M generates a reset signal to initiate system reset.
• Manual Reset: The MR pin allows for manual reset initiation, overriding the automatic reset generation.
• Adjustable Threshold and Timeout: The threshold and timeout periods can be adjusted using external resistors connected to the TH and TO pins, respectively.

Advantages and Disadvantages

Advantages: - Reliable voltage monitoring - Adjustable threshold and timeout periods - Low power consumption - Small form factor - Wide operating temperature range

Disadvantages: - Limited number of pins for additional functionalities - Requires external resistors for threshold and timeout adjustment

Working Principles

The MIC1232M operates by continuously monitoring the power supply voltage. When the voltage falls below the user-adjustable threshold voltage for a predefined timeout period, the IC generates a reset signal. This reset signal is used to initiate a system reset, ensuring proper operation even in the presence of voltage fluctuations or power supply issues.

Detailed Application Field Plans

The MIC1232M finds applications in various electronic systems where reliable voltage monitoring and reset generation are critical. Some potential application fields include: 1. Microcontrollers and microprocessors 2. Embedded systems 3. Industrial control systems 4. Automotive electronics 5. Power management circuits

Detailed and Complete Alternative Models

1. MAX1232 - Similar voltage supervisor IC with adjustable threshold and timeout periods.
2. LTC2910 - Precision voltage monitor with programmable threshold and timeout settings.
3. ADM6315 - Microprocessor supervisory circuit with adjustable reset threshold and timeout.

These alternative models offer similar functionality to the MIC1232M and can be considered as alternatives based on specific requirements and preferences.

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