MIC2981/82BWM

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Distribution Switch
• Characteristics: High-side, Low-side, 8-channel, Serial Input, Open Drain Output
• Package: SOIC-16
• Essence: Efficient power distribution and control
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.7V to 5.5V
• Output Current: 500mA per channel
• Input Voltage Range: -0.3V to VCC + 0.3V
• Operating Temperature Range: -40°C to +85°C
• Serial Interface: I2C compatible, 400kHz maximum clock frequency

Detailed Pin Configuration

The MIC2981/82BWM has a total of 16 pins, which are assigned as follows:

1. VCC: Supply voltage input
2. GND: Ground reference
3. SDA: Serial data input
4. SCL: Serial clock input
5. EN1: Enable input for Channel 1
6. OUT1: Output for Channel 1
7. EN2: Enable input for Channel 2
8. OUT2: Output for Channel 2
9. EN3: Enable input for Channel 3
10. OUT3: Output for Channel 3
11. EN4: Enable input for Channel 4
12. OUT4: Output for Channel 4
13. EN5: Enable input for Channel 5
14. OUT5: Output for Channel 5
15. EN6: Enable input for Channel 6
16. OUT6: Output for Channel 6

Functional Features

• 8 independent channels for power distribution and control
• High-side or low-side switch configuration for each channel
• Serial input for easy control and monitoring
• Open drain outputs for flexible connectivity
• Overcurrent protection for each channel

Advantages and Disadvantages

Advantages

• Efficient power distribution and control in a compact package
• Easy integration with microcontrollers through the I2C interface
• Flexibility to configure channels as high-side or low-side switches
• Overcurrent protection ensures safe operation

Disadvantages

• Limited output current per channel (500mA)
• Restricted input voltage range (-0.3V to VCC + 0.3V)

Working Principles

The MIC2981/82BWM is designed to efficiently distribute and control power in various applications. It can be configured as either a high-side or low-side switch for each of its 8 independent channels. The IC communicates with a microcontroller through the I2C serial interface, allowing easy control and monitoring.

When an enable signal is received for a specific channel, the corresponding output turns on, allowing current flow. The open drain outputs provide flexibility for connecting external devices. Overcurrent protection ensures that the output current does not exceed the specified limit, protecting both the IC and the connected devices.

Detailed Application Field Plans

The MIC2981/82BWM finds applications in various fields, including:

1. Industrial automation: Controlling multiple actuators, relays, or solenoids.
2. Automotive electronics: Power distribution and control for lighting systems, motors, and sensors.
3. Home automation: Managing multiple appliances, lights, and switches.
4. Robotics: Controlling multiple motors and actuators.
5. IoT devices: Power management and control in smart home systems.

Detailed and Complete Alternative Models

1. MIC2981/82BMM: Similar specifications but available in a smaller MSOP-16 package.
2. MIC2981/82BWT: Similar specifications but available in a TSSOP-16 package.
3. MIC2981/82BZM: Similar specifications but with extended temperature range (-40°C to +125°C).

These alternative models provide similar functionality and can be chosen based on specific application requirements.

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