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馬達驅動器
有刷 DC (BDC) 馬達驅動器

DRV8876

現行

具整合式電流感測和電流感測回饋的 40-V、3.5-A 全橋馬達驅動器

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產品規格表

DRV8876

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) 3.5 RDS(ON) (HS + LS) (mΩ) 700 Sleep current (µA) 0.75 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO) Features Current sense Amplifier, Integrated Current Sensing Topology Integrated FET Rating Catalog 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) 3.5 RDS(ON) (HS + LS) (mΩ) 700 Sleep current (µA) 0.75 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO) Features Current sense Amplifier, Integrated Current Sensing Topology Integrated FET Rating Catalog Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 16 32 mm² 5 x 6.4 VQFN (RGT) 16 9 mm² 3 x 3
  • N-channel H-bridge motor driver
    • Drives one bidirectional brushed DC motor
    • Two unidirectional brushed DC motors
    • Other resistive and inductive loads
  • 4.5-V to 37-V operating supply voltage range
  • Pin to pin RDS(on) variants
    • DRV8874: 200-mΩ (High-Side + Low-Side)
    • DRV8876: 700-mΩ (High-Side + Low-Side)
  • High output current capability
    • DRV8874: 6-A Peak
    • DRV8876: 3.5-A Peak
  • Integrated current sensing and regulation
  • Proportional current output (IPROPI)
  • Selectable current regulation (IMODE)
    • Cycle-by-cycle or fixed off time
  • Selectable input control modes (PMODE)
    • PH/EN and PWM H-bridge control modes
    • Independent half-bridge control mode
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Ultra low-power sleep mode
    • <1-µA @ VVM = 24-V, TJ = 25°C
  • Spread spectrum clocking for low electromagnetic interference (EMI)
  • Integrated protection features
    • Undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
      • Automatic retry or outputs latched off (IMODE)
    • Thermal shutdown (TSD)
    • Automatic fault recovery
    • Fault indicator pin (nFAULT)
  • N-channel H-bridge motor driver
    • Drives one bidirectional brushed DC motor
    • Two unidirectional brushed DC motors
    • Other resistive and inductive loads
  • 4.5-V to 37-V operating supply voltage range
  • Pin to pin RDS(on) variants
    • DRV8874: 200-mΩ (High-Side + Low-Side)
    • DRV8876: 700-mΩ (High-Side + Low-Side)
  • High output current capability
    • DRV8874: 6-A Peak
    • DRV8876: 3.5-A Peak
  • Integrated current sensing and regulation
  • Proportional current output (IPROPI)
  • Selectable current regulation (IMODE)
    • Cycle-by-cycle or fixed off time
  • Selectable input control modes (PMODE)
    • PH/EN and PWM H-bridge control modes
    • Independent half-bridge control mode
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Ultra low-power sleep mode
    • <1-µA @ VVM = 24-V, TJ = 25°C
  • Spread spectrum clocking for low electromagnetic interference (EMI)
  • Integrated protection features
    • Undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
      • Automatic retry or outputs latched off (IMODE)
    • Thermal shutdown (TSD)
    • Automatic fault recovery
    • Fault indicator pin (nFAULT)

The DRV887x family of devices are flexible motor drivers for a wide variety of applications. The devices integrate an N-channel H-bridge, charge pump regulator, current sensing and regulation, current proportional output, and protection circuitry. The charge pump improves efficiency by allowing for both high-side and low-side N-channels MOSFETs and 100% duty cycle support. The family of devices come in pin-to-pin, scalable RDS(on) options to support different loads with minimal design changes.

Integrated current sensing allows for the driver to regulate the motor current during start up and high load events. A current limit can be set with an adjustable external voltage reference. Additionally, the devices provide an output current proportional to the motor load current. This can be used to detect motor stall or change in load conditions. The integrated current sensing uses an internal current mirror architecture, removing the need for a large power shunt resistor, saving board area and reducing system cost.

A low-power sleep mode is provided to achieve ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features are provided for supply undervoltage lockout (UVLO), charge pump undervoltage (CPUV), output overcurrent (OCP), and device overtemperature (TSD). Fault conditions are indicated on nFAULT.

The DRV887x family of devices are flexible motor drivers for a wide variety of applications. The devices integrate an N-channel H-bridge, charge pump regulator, current sensing and regulation, current proportional output, and protection circuitry. The charge pump improves efficiency by allowing for both high-side and low-side N-channels MOSFETs and 100% duty cycle support. The family of devices come in pin-to-pin, scalable RDS(on) options to support different loads with minimal design changes.

Integrated current sensing allows for the driver to regulate the motor current during start up and high load events. A current limit can be set with an adjustable external voltage reference. Additionally, the devices provide an output current proportional to the motor load current. This can be used to detect motor stall or change in load conditions. The integrated current sensing uses an internal current mirror architecture, removing the need for a large power shunt resistor, saving board area and reducing system cost.

A low-power sleep mode is provided to achieve ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features are provided for supply undervoltage lockout (UVLO), charge pump undervoltage (CPUV), output overcurrent (OCP), and device overtemperature (TSD). Fault conditions are indicated on nFAULT.
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類型 標題 日期
* Data sheet DRV8876 H-Bridge Motor Driver With Integrated Current Sense and Regulation datasheet (Rev. B) PDF | HTML 2019年 11月 8日
Application brief Advantages of Integrated Current Sensing (Rev. B) PDF | HTML 2022年 6月 20日
Application note Using DRV to Drive Solenoids (Rev. A) PDF | HTML 2022年 4月 24日
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) PDF | HTML 2021年 1月 19日
Technical article How to efficiently drive 12-V and 24-V engine loads in automotive systems PDF | HTML 2020年 7月 9日
Technical article Overcoming design challenges for brushed-DC motors in smart sanitation systems PDF | HTML 2020年 7月 1日
Technical article Automating smart home blinds, shades and shutters with motor drivers PDF | HTML 2020年 1月 2日
EVM User's guide DRV8876/74-Q1 Evaluation Module (Rev. C) 2019年 12月 6日
Technical article Automating smart home systems with motor drivers PDF | HTML 2019年 10月 24日
Technical article Using brushed motors to improve battery life and reliability in vacuum robots PDF | HTML 2019年 7月 17日
Application brief Small Motors in Large Appliances 2018年 7月 20日
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 2018年 7月 6日
Application brief PowerPAD™ Made Easy (Rev. B) 2004年 5月 12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

DRV8876EVM — DRV8876 單全橋馬達驅動器評估模組

DRV8876 評估模組 (EVM) 可輕鬆評估 DRV8876 裝置。  DRV8876 裝置是適合有刷 DC 與電磁閥應用的整合式全橋驅動器。評估模組可將裝置配置為 PWM、相位/啟用或獨立半橋控制模式。電路板上的 MSP430FR2100 可為 DRV8876EVM 的輸入接腳提供 PWM 訊號。PWM 訊號的工作週期由電路板上的電位計設定。

如需有關此評估模組的詳細資訊，請參閱 DRV8876EVM 使用指南。

使用指南: PDF
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支援軟體

SLVC747 — DRV887xEVM Firmware

支援產品和硬體

支援產品和硬體

產品
有刷 DC (BDC) 馬達驅動器
  • DRV8874 — 具有整合式電流感測回饋的 40-V、6-A 全橋馬達驅動器
  • DRV8876 — 具整合式電流感測和電流感測回饋的 40-V、3.5-A 全橋馬達驅動器
硬體開發
開發板
  • DRV8874-Q1EVM — DRV8874-Q1 單全橋馬達驅動器評估模組
  • DRV8874EVM — DRV8874 單全橋馬達驅動器評估模組
  • DRV8876-Q1EVM — DRV8876-Q1 單全橋馬達驅動器評估模組
  • DRV8876EVM — DRV8876 單全橋馬達驅動器評估模組
下載
模擬型號

DRV8876 PSpice Transient Simulation (Rev. A)

SLVMCQ1A.ZIP (106 KB) - PSpice Model
下載
模擬型號

DRV8876-Q1 PSpice Transient Simulation (Rev. A)

SLVMCQ2A.ZIP (113 KB) - PSpice Model
下載
參考設計

TIDA-010073 — 具有熄火偵測與速度控制的 18-V、2-A、25-mm 有刷 DC 馬達驅動器參考設計

此參考設計展示了適用於掃地機器人主輪和主刷的有刷 DC (BDC) 馬達驅動器解決方案，無需任何額外感測器即可偵測馬達失速。此設計提供低元件數量和小巧外型尺寸，同時提供控制 BDC 馬達的彈性。此設計整合了過電流、過電壓、欠電壓和過熱自動關機等強化保護。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 16 Ultra Librarian
VQFN (RGT) 16 Ultra Librarian
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  • 鉛塗層/球物料
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  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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