Volver a Monolithic Power Systems (MPS)

Monolithic Power Systems (MPS) MPQ3323 4-Channel 320mA/Ch LED Drivers

Monolithic Power Systems (MPS) MPQ3323 4-Channel 320mA/Ch LED Drivers feature a 4.5V to 16V input voltage range. The MPS MPQ3323 drivers use internal current sources for each LED string terminal, and the LED current (ILED) for each channel is set by an external resistor with a maximum current of 320mA. The device features an integrated I2C interface, supporting up to 10x configurable I2C addresses through an external resistor. This allows cascading up to 10x ICs to drive the LED array, with individual channel enable/disable control via I2C.

Features

  • Wide 4.5V to 16V input voltage (VIN) range
  • 4 channels, max 320mA/Ch
  • LED current (ILED) configured via an external resistor
  • 6-bit analog dimming for each channel
  • 12-bit Pulse-Width Modulation (PWM) dimming for each channel
  • Selectable 220Hz, 250Hz, 280Hz, or 330Hz PWM dimming frequency (fPWM)
  • Refresh signal output
  • I2C interface
  • 10x addresses configurable via an external resistor
  • Configurable ILED slew rate
  • Fault indicator
  • LED open protection
  • LED short protection with configurable threshold
  • Under-Voltage Lockout (UVLO) protection
  • Over-Temperature Protection (OTP)
  • Available in a QFN-24 (4mm x 4mm) package
  • Available in a wettable flank package
  • Available in AEC-Q100 Grade 1

Applications

  • Automotive displays
  • Instruments clusters
  • General industrial displays

TYPICAL APPLICATION

Application Circuit Diagram - Monolithic Power Systems (MPS) MPQ3323 4-Channel 320mA/Ch LED Drivers
Publicado: 2024-02-16 | Actualizado: 2024-04-23