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Drivers

TPM8909Q

16-CH, 80-V, 1-A Half-bridge Driver for VCSEL

  • Overview
  • Development Resources
  • Application
  • Ordering Detail

Overview

The TPM8909Q is a 16-channel, high-speed half-bridge driver IC, capable of handling 80V and providing up to 1A per channel. Engineered for the control of capacitor arrays in VCSEL driver circuits, it is pivotal in the operation of solid-state LiDAR systems.

In the field of LiDAR, the generation of short, highpower pulses is critical. The VCSEL array, known for its robustness and cost efficiency, excels in applications requiring blind-spot detection in LiDAR technology. The TPM8909Q utilizes capacitor arrays to efficiently store and manage the energy required for these pulses. By charging capacitors of specific channels, it enables precise and controllable VCSEL output, ensuring the system's accuracy and responsiveness in high-resolution LiDAR applications.

The TPM8909Q features a high-speed 4-to-16 multiplexer for directing energy to specific channels, with the ability to tri-state or pull down non-selected channels based on operational mode. It uses an external resistor to precisely control the maximum current to each channel, up to a capacity of 1A. For channels in the discharge phase, internal current limiting is in place to mitigate the risk of excessive current during switching. The device is equipped with voltage indicators to monitor charge and residual voltage levels for safety and system performance. Additionally, it includes an open-drain fault output and a diagnostics enable input for fault detection and management.


  • Status

    Production

  • Rating

    Automotive

  • VIN (V)

    80

  • Number of Channels

    16

  • Max Output Current (A)

    1

  • Features

    Lidar VCSEL Driver

  • Package

    QFN5X5-32

Development Resources

  • Documentation

Application

    • Capacitor Array Driver for VCSEL

    • LiDAR

    • Capacitive Loads

Ordering Detail

Order Part Number Buy Samples Rating Feature Status 1ku Price Release Date Package Lead time (week) MSL Packing MPQ CPQ
TPM8909Q-QFZR-S
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Industrial Grade / Production / 2025-09-09 QFN5X5-32 24 MSL3 T&R 3000 15000

Note: Our Sample Program is powered by DigiKey. All sample requests must be approved through your 3PEAK sample account, click the request sample button to log in or create your account. Please allow 1 business day for processing time.

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