L99PD08 Smart Multiplexer


STMicroelectronics' SPI control diagnosis interface device for VIPower™
M0-5 and M0-5E high side drivers


STMicroelectronics L99PD08 Smart Multiplexer The number of output channels managed by junction boxes is rapidly increasing. Controlling all these loads, including PWM and synchronous diagnosis, requires powerful microcontrollers, bulky software, and many I/Os. STMicroelectronics offers a multiplexer interface between the microcontroller and high-side drivers, the L99PD08, which controls and monitors eight driver channels via the SPI. The circuit also provides phase shifted PWM and synchronous diagnosis and removes a heavy software load from the microcontroller. Limp-home functions are also embedded, making system fail-safe management easy. The circuit is optimized to drive STMicroelectronics' M0-5 and M0-5E advanced high-side driver family.

  Features   Applications
  • Intelligent multiplexer
    • SPI interface to microcontroller
    • Parallel I/O to control and diagnose M0-5 and M0-5E high-side drivers
  • PWM generation
    • 8 independent channels
    • Programmable phase shift
  • Diagnostics
    • Synchronous and detailed diagnostics
    • Programmable fault detection thresholds
    • Analog sense multiplexing
  • Safety
    • Timeout watchdog for system integrity
    • Limp-home mode
    • Programmable thermal latch off
  • Junction boxes
  • Body controllers
  • Interior lighting systems
  • Exterior lighting systems


RoHS Compliant

STMicroelectronics
Part Number
Digi-Key
Part Number
Packaging Number of Outputs Voltage -
Supply
Package  
L99PD08TR 497-10502-2-ND Tape & Reel 8 3.3V ~ 5V 32-LQFP L99PD08TR Datasheet
497-10502-1-ND Cut Tape
497-10502-6-ND Digi-Reel®

Please visit Digi-Key's Lighting Solutions Technology Zone to learn more about STMicro's lighting products.