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有刷 DC (BDC) 馬達驅動器

DRV8873-Q1

現行

具整合電流回饋的車用電流感測 40V 10A 全橋馬達驅動器

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產品規格表

DRV8873-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of full bridges 1 Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Peak output current (A) 10 RDS(ON) (HS + LS) (mΩ) 150 Sleep current (µA) 15 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO), SPI Features Current sense Amplifier, Integrated Current Sensing, Open-Load Detection Topology Integrated 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) 4.5 Vs ABS (max) (V) 40 Peak output current (A) 10 RDS(ON) (HS + LS) (mΩ) 150 Sleep current (µA) 15 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO), SPI Features Current sense Amplifier, Integrated Current Sensing, Open-Load Detection Topology Integrated FET Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C, TA
  • N-channel H-bridge motor driver
    • Drives one bidirectional brushed DC motor
    • Two unidirectional brushed DC motors
    • Solenoids or other resistive and inductive loads
  • 4.5-V to 38-V Operating voltage range
  • 10-A Peak current drive
  • Low HS + LS RDS(ON)
    • 150 mΩ at TJ = 25°C, 13.5 V
    • 250 mΩ at TJ = 150°C, 13.5 V
  • Integrated current sensing
  • Proportional current output (IPROPI)
  • Configurable control interface
    • PH/EN
    • PWM (IN1/IN2)
    • Independent half-bridge control
  • Supports 1.8-V, 3.3-V, 5-V logic inputs
  • SPI or hardware interface options
  • Small package and footprint
    • 24 HTSSOP PowerPAD™ IC package
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Output short to battery and short to ground protection
    • Open load detection
    • Thermal shutdown (TSD)
    • Fault condition output (nFAULT / SPI)
  • Spread spectrum clocking for low electromagnetic interference (EMI)
  • Functional Safety-Capable
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C, TA
  • N-channel H-bridge motor driver
    • Drives one bidirectional brushed DC motor
    • Two unidirectional brushed DC motors
    • Solenoids or other resistive and inductive loads
  • 4.5-V to 38-V Operating voltage range
  • 10-A Peak current drive
  • Low HS + LS RDS(ON)
    • 150 mΩ at TJ = 25°C, 13.5 V
    • 250 mΩ at TJ = 150°C, 13.5 V
  • Integrated current sensing
  • Proportional current output (IPROPI)
  • Configurable control interface
    • PH/EN
    • PWM (IN1/IN2)
    • Independent half-bridge control
  • Supports 1.8-V, 3.3-V, 5-V logic inputs
  • SPI or hardware interface options
  • Small package and footprint
    • 24 HTSSOP PowerPAD™ IC package
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Output short to battery and short to ground protection
    • Open load detection
    • Thermal shutdown (TSD)
    • Fault condition output (nFAULT / SPI)
  • Spread spectrum clocking for low electromagnetic interference (EMI)
  • Functional Safety-Capable

The DRV8873-Q1 device is an integrated driver IC for driving a brushed DC motor in automotive applications. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that drive motors bi-directionally with up to 10-A peak current. The device operates from a single power supply and supports a wide input supply range from 4.5 V to 38 V.

A PH/EN or PWM interface allows simple interfacing to controller circuits. Alternatively, independent half-bridge control is available to drive two solenoid loads.

Integrated current sensing provides an output current proportional to the motor load current of both hide-side FETs without the need for high-power sense resistors. This can be used to detect motor stall or change in load conditions.

A low-power sleep mode is provided to achieve very-low quiescent current draw by shutting down much of the internal circuitry. Internal protection functions are provided for undervoltage lockout, charge pump faults, overcurrent protection, short-circuit protection, open-load detection, and overtemperature. Fault conditions are indicated on an nFAULT pin and through the SPI registers.

The DRV8873-Q1 device is an integrated driver IC for driving a brushed DC motor in automotive applications. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that drive motors bi-directionally with up to 10-A peak current. The device operates from a single power supply and supports a wide input supply range from 4.5 V to 38 V.

A PH/EN or PWM interface allows simple interfacing to controller circuits. Alternatively, independent half-bridge control is available to drive two solenoid loads.

Integrated current sensing provides an output current proportional to the motor load current of both hide-side FETs without the need for high-power sense resistors. This can be used to detect motor stall or change in load conditions.

A low-power sleep mode is provided to achieve very-low quiescent current draw by shutting down much of the internal circuitry. Internal protection functions are provided for undervoltage lockout, charge pump faults, overcurrent protection, short-circuit protection, open-load detection, and overtemperature. Fault conditions are indicated on an nFAULT pin and through the SPI registers.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 DRV8873-Q1 Automotive H-Bridge Motor Driver datasheet (Rev. B) PDF | HTML 2020/12/16
Application brief Advantages of Integrated Current Sensing (Rev. B) PDF | HTML 2022/6/20
應用說明 Using DRV to Drive Solenoids (Rev. A) PDF | HTML 2022/4/24
Application brief Open Load Detection in Integrated Drivers (Rev. C) PDF | HTML 2022/3/31
應用說明 Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 2021/10/14
更多文件說明 TI Motor Drives Automotive Body Motors Webinar 2021/7/2
應用說明 Daisy Chain Implementation for Serial Peripheral Interface (Rev. A) 2021/4/7
技術文章 How analog integration simplifies automotive body motor controller designs PDF | HTML 2020/10/23
技術文章 How to efficiently drive 12-V and 24-V engine loads in automotive systems PDF | HTML 2020/7/9
功能安全資訊 DRV8873-Q1 Functional Safety FIT, FMD & PinFMA PDF | HTML 2020/5/27
應用說明 Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) 2019/2/19
使用指南 DRV8873x-Q1EVM GUI User's Guide (Rev. B) 2018/12/10
使用指南 DRV8873x-Q1EVM User’s Guide (Rev. B) 2018/12/10
應用說明 PowerPAD™ Thermally Enhanced Package (Rev. H) 2018/7/6
Application brief PowerPAD™ Made Easy (Rev. B) 2004/5/12

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

DRV8873H-Q1EVM — 具有硬體介面和整合電流感測功能的車用 10A 全橋馬達驅動器 EVM

DRV8873 是適合工業與消費者應用的雙步進馬達驅動器。本裝置配備 10A 峰值電流能力與 4.5-38V 電壓範圍，支援廣泛的應用。

PH/EN 或 PWM 介面可輕鬆介接控制器電路，同時允許獨立 ½ 橋接控制驅動兩個電磁閥負載。電流鏡透過高壓側 FET 近似於電流，不需要感測電阻器。藉由關閉大部分內部電路，提供低功率睡眠模式以實現極低的靜態電流消耗。針對欠電壓鎖定、電荷泵故障、過電流保護、短路保護和過熱，提供內部保護功能，並透過 nFAULT 接腳和 SPI 暫存器指示故障狀況。

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開發板

DRV8873S-Q1EVM — 具有 SPI 介面和整合電流感測功能的車用 10A 全橋馬達驅動器 EVM

DRV8873 是適合工業與消費者應用的雙步進馬達驅動器。本裝置配備 10A 峰值電流能力與 4.5-38V 電壓範圍，支援廣泛的應用。PH/EN 或 PWM 介面可輕鬆介接控制器電路，同時允許獨立 ½ 橋接控制驅動兩個電磁閥負載。電流鏡透過高壓側 FET 近似於電流，不需要感測電阻器。藉由關閉大部分內部電路，提供低功率睡眠模式以實現極低的靜態電流消耗。針對欠電壓鎖定、電荷泵故障、過電流保護、短路保護和過熱，提供內部保護功能，並透過 nFAULT 接腳和 SPI 暫存器指示故障狀況。
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模擬型號

DRV8876-Q1 PSpice Transient Simulation (Rev. A)

SLVMCQ2A.ZIP (113 KB) - PSpice 模型
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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。
支援產品和硬體
參考設計

TIDA-020027 — 車用全功能側視鏡模組參考設計

現代豪華側視鏡包含許多便利功能，除了簡單地提供側視鏡的 X-Y 方向控制以外，還可為駕駛員提供更好更安全的體驗。其中包括可減少眩光的自動調光側視鏡；用於在狹小停車空間內防止側視鏡受損的可摺疊側視鏡模組；用於盲點物體偵測的 LED 指示燈、照地燈和轉向指示燈；以及用於在寒冷條件下為側視鏡除霧和除冰的加熱器。每一項功能的新增都需要更多電子裝置，因此汽車電子設計人員希望能夠設計出隨著負載需求的變化可擴展的多功能整合式解決方案。此參考設計為小尺寸解決方案中考量這類電子裝置的設計提供了出發點。
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