產品詳細資料

Number of full bridges 1 Vs (min) (V) 5.5 Vs ABS (max) (V) 47 RDS(ON) (HS + LS) (mΩ) 0 Sleep current (µA) 14 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO), SPI Features Current Regulation, Current sense Amplifier, Smart Gate Drive Topology External FET Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Number of full bridges 1 Vs (min) (V) 5.5 Vs ABS (max) (V) 47 RDS(ON) (HS + LS) (mΩ) 0 Sleep current (µA) 14 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO), SPI Features Current Regulation, Current sense Amplifier, Smart Gate Drive Topology External FET Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
VQFN (RHB) 32 25 mm² 5 x 5
  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Functional Safety-Capable
  • Single H-Bridge Gate Driver
    • Drives Four External N-Channel MOSFETs
    • Supports 100% PWM Duty Cycle
  • 5.5 to 45V Operating Supply-Voltage Range
  • Three Control-Interface Options
    • PH/EN, Independent H-Bridge, and PWM
  • Serial Interface for Configuration (DRV8703-Q1)
  • Smart Gate Drive Architecture
    • Adjustable Slew-Rate Control
  • Independent Control of Each H-Bridge
  • Supports 1.8V, 3.3V, and 5V logic inputs
  • Current-Shunt Amplifier
  • Integrated PWM Current Regulation
  • Low-Power Sleep Mode
  • Protection Features
    • Supply Undervoltage Lockout (UVLO)
    • Charge-Pump Undervoltage (CPUV) Lockout
    • Overcurrent Protection (OCP)
    • Gate-Driver Fault (GDF)
    • Thermal Shutdown (TSD)
    • Watchdog Timer (DRV8703-Q1)
    • Fault-Condition Output (nFAULT)
  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Functional Safety-Capable
  • Single H-Bridge Gate Driver
    • Drives Four External N-Channel MOSFETs
    • Supports 100% PWM Duty Cycle
  • 5.5 to 45V Operating Supply-Voltage Range
  • Three Control-Interface Options
    • PH/EN, Independent H-Bridge, and PWM
  • Serial Interface for Configuration (DRV8703-Q1)
  • Smart Gate Drive Architecture
    • Adjustable Slew-Rate Control
  • Independent Control of Each H-Bridge
  • Supports 1.8V, 3.3V, and 5V logic inputs
  • Current-Shunt Amplifier
  • Integrated PWM Current Regulation
  • Low-Power Sleep Mode
  • Protection Features
    • Supply Undervoltage Lockout (UVLO)
    • Charge-Pump Undervoltage (CPUV) Lockout
    • Overcurrent Protection (OCP)
    • Gate-Driver Fault (GDF)
    • Thermal Shutdown (TSD)
    • Watchdog Timer (DRV8703-Q1)
    • Fault-Condition Output (nFAULT)

The DRV870x-Q1 devices are small single H-bridge gate drivers that use four external N-channel MOSFETs targeted to drive a bidirectional brushed-DC motor.

A PH/EN, independent H-Bridge, or PWM interface allows simple interfacing to controller circuits. An internal sense amplifier provides adjustable current control. Integrated Charge-Pump allows for 100% duty cycle support and can be used to drive external reverse battery switch.

Independent Half Bridge mode allows sharing of half bridges to control multiple DC motors sequentially in a cost-efficient way. The gate driver includes circuitry to regulate the winding current using fixed off-time PWM current chopping.

The DRV870x-Q1 devices include Smart Gate Drive technology to remove the need for any external gate components (resistors and Zener diodes) while protecting the external FETs. The Smart Gate Drive architecture optimizes dead time to avoid any shoot-through conditions, provides flexibility in reducing electromagnetic interference (EMI) with programmable slew-rate control and protects against any gate-short conditions. Additionally, active and passive pulldowns are included to prevent any dv/dt gate turn on.

The DRV870x-Q1 devices are small single H-bridge gate drivers that use four external N-channel MOSFETs targeted to drive a bidirectional brushed-DC motor.

A PH/EN, independent H-Bridge, or PWM interface allows simple interfacing to controller circuits. An internal sense amplifier provides adjustable current control. Integrated Charge-Pump allows for 100% duty cycle support and can be used to drive external reverse battery switch.

Independent Half Bridge mode allows sharing of half bridges to control multiple DC motors sequentially in a cost-efficient way. The gate driver includes circuitry to regulate the winding current using fixed off-time PWM current chopping.

The DRV870x-Q1 devices include Smart Gate Drive technology to remove the need for any external gate components (resistors and Zener diodes) while protecting the external FETs. The Smart Gate Drive architecture optimizes dead time to avoid any shoot-through conditions, provides flexibility in reducing electromagnetic interference (EMI) with programmable slew-rate control and protects against any gate-short conditions. Additionally, active and passive pulldowns are included to prevent any dv/dt gate turn on.

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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet DRV870x-Q1 Automotive H-Bridge Gate Driver datasheet (Rev. F) PDF | HTML 2026年 6月 11日
Application note Using DRV to Drive Solenoids (Rev. A) PDF | HTML 2022年 4月 24日
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 2021年 10月 14日
Application note Understanding Smart Gate Drive (Rev. D) 2021年 3月 1日
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) PDF | HTML 2021年 1月 19日
Functional safety information DRV8703-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2020年 5月 29日
Application note Detecting Short to Battery and Ground Conditions with TI Motor Gate Drivers PDF | HTML 2020年 5月 29日
White paper Smart Gate Drive 2019年 7月 2日
Application note Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) 2019年 2月 19日
Application note Cut-Off Switch in High-Current Motor-Drive Applications (Rev. A) 2018年 8月 20日
Technical article Why are you still driving automotive motors with relays? PDF | HTML 2017年 7月 13日
Application note Relay Replacement for Brushed DC Motor Drive in Automotive Applications 2016年 11月 14日

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

DRV8703-Q1EVM — DRV8703-Q1 車用有刷 DC 閘極驅動器評估模組

DRV8703-Q1EVM(評估模組)是一款評估套件,可用於展示 TI 的 DRV8703-Q1 半橋閘極驅動器。此系統透過 MSP430G2553 控制馬達的占空比與轉動方向,並監測 DRV8703-Q1 回報的電流資訊。此功率級採用 DRV8703-Q1 車用 H 橋閘極驅動器與 CSD18540Q5B N 通道 NexFETTM 功率 MOSFET 架構而成。本 EVM具備高性能、完整保護機制與高成本效益,能協助縮短開發時程並加速產品上市。本 EVM 搭配操作簡便的應用程式,只需極少的外部設備即可快速啟動。
使用指南: PDF
TI.com 無法提供
支援軟體

SLVC673 DRV8703-Q1EVM Software

支援產品和硬體

支援產品和硬體

模擬型號

DRV8701E Transient Simulation Model (Rev. A)

SLVMAR3A.ZIP (90 KB) - PSpice Model
參考設計

TIDA-01389 — 小體積天窗馬達模組參考設計

此參考設計是一款小型馬達控制模組,專為天窗與車窗升降應用而設計。此設計採用 DRV8703-Q1 閘極驅動器,內建電流分流放大器,並搭配兩顆符合汽車規格的雙封裝 MOSFET,相較於一般繼電器解決方案,可實現極小的功率級佈局。本設計亦內建兩顆 DRV5013-Q1 閉鎖型霍爾感測器,用於編碼馬達位置。
Design guide: PDF
電路圖: PDF
參考設計

TIDA-020008 — 車用電動座椅參考設計

此參考設計針對採用雙向及單向馬達驅動的馬達驅動應用(如車用電動座椅)提供了驅動與控制電路。它展示了如何驅動電路板體積小、強固性高且具有完整診斷功能的有刷 DC 馬達。此設計說明了用於增加馬達驅動舒適性和便利性選項的解決方案,以及使用更智慧化的全功能裝置取代繼電器型電路的解決方案。
Design guide: PDF
電路圖: PDF
參考設計

TIDA-060009 — 汽車動力行李箱升降馬達驅動器參考設計

此設計說明如何驅動汽車後車廂升降裝置或尾門升降裝置。

在此設計中,採用有刷 BD 升降馬達和電磁離合器驅動機制,搭配典型齒輪驅動升降裝置。此設計包括警示蜂鳴器、LED 指示燈,以及使用汽車馬達驅動器和高壓側開關的方向控制。具電壓轉換速率控制的電流控制閘極驅動器可協助提升 MOSFET 效率,並減少切換突波。

相較於繼電器解決方案,此設計提供簡單穩健的實作,並減少元件數量及縮小電路板空間。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RHB) 32 Ultra Librarian

訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

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