Texas Instruments
L'image peut être une représentation.
Voir les spécifications pour les détails du produit.
MM5452V
Voir les détails DataSheets

MM5452V

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: LED Display Driver
  • Characteristics: High voltage, multiplexed display driver
  • Package: DIP (Dual In-line Package)
  • Essence: Efficiently drives LED displays with minimal external components
  • Packaging/Quantity: Available in tubes or reels, quantity varies based on supplier

Specifications

  • Supply Voltage: 5V to 18V
  • Maximum Output Current: 100mA
  • Number of Digits: Up to 8 digits
  • Multiplexing Capability: 1:16
  • Output Polarity: Common Cathode
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MM5452V IC has a total of 40 pins. The pin configuration is as follows:

  1. VDD - Positive power supply
  2. VSS - Ground
  3. OSC - Oscillator input
  4. TEST - Test mode input
  5. RESET - Reset input
  6. STROBE - Strobe input
  7. DATA - Serial data input
  8. BLANK - Blank input
  9. DIG0 - Digit 0 output
  10. DIG1 - Digit 1 output
  11. DIG2 - Digit 2 output
  12. DIG3 - Digit 3 output
  13. DIG4 - Digit 4 output
  14. DIG5 - Digit 5 output
  15. DIG6 - Digit 6 output
  16. DIG7 - Digit 7 output 17-40. Not used

Functional Features

  • Efficiently drives LED displays with minimal external components
  • Supports multiplexing up to 1:16, allowing control of multiple digits with fewer pins
  • Built-in oscillator for generating internal clock signals
  • Test mode for easy verification of display functionality
  • Reset and blank inputs for controlling display behavior

Advantages and Disadvantages

Advantages: - High voltage capability allows driving of common cathode LED displays directly - Multiplexing capability reduces the number of pins required for controlling multiple digits - Built-in oscillator eliminates the need for an external clock source - Test mode simplifies testing and verification process

Disadvantages: - Limited to common cathode LED displays only - Requires additional external components for current limiting and display segment control

Working Principles

The MM5452V is a high voltage, multiplexed LED display driver. It operates by receiving data serially through the DATA input pin. The received data is then latched and decoded internally to drive the corresponding segments of the LED display. The driver supports multiplexing up to 1:16, allowing control of multiple digits with fewer pins. The built-in oscillator generates internal clock signals for refreshing the display at a desired frequency.

Detailed Application Field Plans

The MM5452V LED display driver finds applications in various fields, including:

  1. Digital clocks and timers
  2. Scoreboards and electronic signs
  3. Instrumentation panels
  4. Industrial control systems
  5. Advertising displays
  6. Gaming machines
  7. Automotive dashboards

Detailed and Complete Alternative Models

  1. MAX7219 - LED display driver with serial interface
  2. HT16K33 - I2C controlled LED driver
  3. TLC5940 - LED driver with grayscale control
  4. CD74HC4511 - BCD to 7-segment decoder/driver
  5. MAX6954 - LED display driver with keypad interface

These alternative models offer similar functionality to the MM5452V and can be considered as alternatives based on specific requirements and design constraints.

Word count: 440 words

Énumérez 10 questions et réponses courantes liées à l'application de MM5452V dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of MM5452V in technical solutions:

  1. Q: What is MM5452V? A: MM5452V is a display driver IC (integrated circuit) commonly used for driving LED (light-emitting diode) displays.

  2. Q: What is the maximum number of LEDs that can be driven by MM5452V? A: MM5452V can drive up to 35 LEDs, arranged in a 5x7 matrix.

  3. Q: Can MM5452V drive different types of LEDs? A: Yes, MM5452V can drive both common anode and common cathode LEDs.

  4. Q: How does MM5452V communicate with a microcontroller or other control circuitry? A: MM5452V uses a simple serial interface to receive data from the microcontroller, allowing it to control the LEDs.

  5. Q: What is the maximum refresh rate supported by MM5452V? A: MM5452V supports a maximum refresh rate of 400 Hz.

  6. Q: Can MM5452V handle multiplexing of LEDs? A: Yes, MM5452V has built-in multiplexing capabilities, allowing it to efficiently drive multiple LEDs using time-division multiplexing.

  7. Q: Does MM5452V have any built-in current limiting features? A: No, MM5452V does not have built-in current limiting. External resistors need to be used to limit the current flowing through the LEDs.

  8. Q: Can MM5452V be used in automotive applications? A: Yes, MM5452V is suitable for automotive applications as it can operate over a wide temperature range and withstand voltage fluctuations.

  9. Q: Can MM5452V be cascaded to drive more than 35 LEDs? A: Yes, multiple MM5452V ICs can be cascaded together to drive larger LED displays by synchronizing their control signals.

  10. Q: Are there any application notes or reference designs available for MM5452V? A: Yes, the manufacturer of MM5452V provides application notes and reference designs that can help in implementing the IC in various technical solutions.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.