MIC5841BV

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Driver
• Characteristics: High voltage, high current, low power consumption
• Package: DIP (Dual In-line Package)
• Essence: Monolithic high-voltage, high-current shift register
• Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

• Supply Voltage: 3V to 5.5V
• Output Current: Up to 500mA per channel
• Number of Channels: 8
• Shift Register: 8-bit serial-in, parallel-out
• Output Type: Constant current sink
• Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

The MIC5841BV has a total of 18 pins. The pin configuration is as follows:

1. VDD - Supply Voltage
2. GND - Ground
3. SER - Serial Data Input
4. SRCLK - Shift Register Clock Input
5. RCLK - Register Clock Input
6. OE - Output Enable
7. DS0 - Data Output for Channel 0
8. DS1 - Data Output for Channel 1
9. DS2 - Data Output for Channel 2
10. DS3 - Data Output for Channel 3
11. DS4 - Data Output for Channel 4
12. DS5 - Data Output for Channel 5
13. DS6 - Data Output for Channel 6
14. DS7 - Data Output for Channel 7
15. VOUT - Output Voltage
16. VLED - LED Power Supply
17. VREF - Reference Voltage
18. NC - No Connection

Functional Features

• High-voltage and high-current capability allows driving of multiple LEDs in series
• Serial-in, parallel-out shift register simplifies control interface
• Constant current sink output ensures consistent brightness across LEDs
• Output enable pin allows for easy on/off control of all channels simultaneously

Advantages and Disadvantages

Advantages: - High voltage and current capability - Low power consumption - Simplified control interface - Consistent brightness across LEDs

Disadvantages: - Limited number of channels (8) - DIP package may not be suitable for space-constrained applications

Working Principles

The MIC5841BV is a monolithic high-voltage, high-current shift register designed specifically for driving LEDs. It operates by receiving serial data input and shifting it into an 8-bit shift register. The data is then latched into a parallel output register and used to control the current sink outputs for each channel. The constant current sink outputs ensure that the LEDs connected to each channel have consistent brightness.

Detailed Application Field Plans

The MIC5841BV is commonly used in various applications where LED driving is required. Some of the typical application fields include:

1. LED Displays: The high-voltage and high-current capabilities of the MIC5841BV make it suitable for driving LED displays, such as numeric displays, alphanumeric displays, and dot matrix displays.

2. Automotive Lighting: The IC can be used in automotive lighting applications, including interior lighting, dashboard indicators, and exterior lighting such as turn signals and brake lights.

3. Signage and Advertising: The MIC5841BV can drive LEDs in signage and advertising applications, such as illuminated signs, billboards, and display panels.

4. Decorative Lighting: It can be used in decorative lighting applications, such as LED strips, holiday lighting, and architectural lighting.

Detailed and Complete Alternative Models

Some alternative models to the MIC5841BV that offer similar functionality are:

1. MAX7219: This IC also provides an 8-bit shift register and constant current sink outputs for LED driving. It is available in various package options, including DIP and surface mount.

2. TLC5940: This IC offers 16 channels of LED driving with grayscale control. It supports both constant current and constant voltage output modes.

3. TPIC6B595: This IC combines a shift register and high-current output drivers. It can drive various loads, including LEDs, relays, and solenoids.

4. HT16K33: This IC is specifically designed for LED matrix driving. It supports up to 128 LEDs and offers features like key scanning and PWM brightness control.

These alternative models provide different features and capabilities, allowing users to choose the most suitable option for their specific application requirements.

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