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Texas Instruments 德州仪器 DRV8305 三相栅极驱动器

德州仪器 DRV8305 是一款用于三相电机驱动应用的栅极驱动器集成电路 (IC)。它提供了三个经高精度调节和温度补偿的半桥驱动器，每个驱动器能够驱动一个高侧和低侧 N 型 MOSFET。电荷泵驱动器支持占空比为 100% 的低压操作。该栅极驱动器还能够承受最高达 45V 的负载突降脉冲。栅极驱动器在切换时使用自动握手，以防止发生电流击穿。该器件可精确感测高侧和低侧 MOSFET 的 VDS，以在过流状态期间保护外部 MOSFET。DRV8305 提供三个分流放大器进行精确的电流测量，支持增益可调节的双向电流感测。

特性

  • 4.4V to 45V Operating voltage
  • 1.25A and 1A Peak gate drive currents
  • Programmable high- and low-side slew-rate control
  • Charge-pump gate driver for 100% duty cycle
  • Three integrated current-shunt amplifiers
  • Integrated 50mA LDO (3.3V and 5V option)
  • 3-PWM or 6-PWM input control up to 200kHz
  • Single PWM-mode commutation capability
  • Supports Both 3.3V and 5V digital interface
  • Serial Peripheral Interface (SPI) for device settings and fault reporting
  • Thermally-enhanced 48-Pin HTQFP
  • Protection features
    • Fault diagnostics and MCU watchdog
    • Programmable dead-time control
    • MOSFET Shoot-through prevention
    • MOSFET VDS Overcurrent monitors
    • Gate-driver fault detection
    • Reverse battery-protection support
    • Limp home-mode support
    • Overtemperature warning and shutdown

应用

  • Three-phase BLDC and PMSM motors
  • CPAP and pumps
  • Robotics and RC toys
  • Power tools
  • Industrial automation

Datasheets

视频

Simplified Schematic

原理图 - Texas Instruments 德州仪器 DRV8305 三相栅极驱动器

Associated Development Tools

Texas Instruments BOOSTXL-DRV8305EVM Motor Drive BoosterPack EVM

Ideal for evaluating and rapidly developing with the DRV8305, a three-phase gate driver.

Learn More关于Texas Instruments BOOSTXL-DRV8305EVM Motor Drive BoosterPack EVM View Products与Texas Instruments BOOSTXL-DRV8305EVM Motor Drive BoosterPack EVM相关

Texas Instruments DRV8305-Q1EVM栅极驱动器评估模块 (EVM)

用于评估具有一系列广泛的测试点、接口和可配置性的 DRV8305-Q1 器件。

Learn More关于Texas Instruments DRV8305-Q1EVM栅极驱动器评估模块 (EVM) View Products与Texas Instruments DRV8305-Q1EVM栅极驱动器评估模块 (EVM)相关
发布日期: 2015-11-10 | 更新日期: 2022-09-22