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有刷 DC (BDC) 馬達驅動器

DRV8870

現行

具有電流調節功能的 50-V、3.6-A 全橋馬達驅動器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
引腳對引腳且具備與所比較裝置相同的功能
DRV8231 現行 具有整合式電流穩壓的 35-V、3.7-A 全橋馬達驅動器 Pin-to-pin upgrade with improved performance and pricing
DRV8251 現行 具有整合式電流調節和閂鎖 OCP 的 50-V、4.1-A 全橋馬達驅動器 Pin-to-pin upgrade with improved performance and pricing

DRV8870

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) 6.5 Vs ABS (max) (V) 50 Peak output current (A) 3.7 RDS(ON) (HS + LS) (mΩ) 565 Sleep current (µA) 10 Control mode PWM Control interface Hardware (GPIO) Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 125
Number of full bridges 1 Vs (min) (V) 6.5 Vs ABS (max) (V) 50 Peak output current (A) 3.7 RDS(ON) (HS + LS) (mΩ) 565 Sleep current (µA) 10 Control mode PWM Control interface Hardware (GPIO) Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 125
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • H-Bridge Motor Driver
    • Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads
  • Wide 6.5-V to 45-V Operating Voltage
  • 565-mΩ Typical RDS(on) (HS + LS)
  • 3.6-A Peak Current Drive
  • PWM Control Interface
  • Integrated Current Regulation
  • Low-Power Sleep Mode
  • Small Package and Footprint
    • 8-Pin HSOP With PowerPAD™
    • 4.9 × 6.0 mm
  • Integrated Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Automatic Fault Recovery
  • H-Bridge Motor Driver
    • Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads
  • Wide 6.5-V to 45-V Operating Voltage
  • 565-mΩ Typical RDS(on) (HS + LS)
  • 3.6-A Peak Current Drive
  • PWM Control Interface
  • Integrated Current Regulation
  • Low-Power Sleep Mode
  • Small Package and Footprint
    • 8-Pin HSOP With PowerPAD™
    • 4.9 × 6.0 mm
  • Integrated Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Automatic Fault Recovery

The DRV8870 device is a brushed-DC motor driver for printers, appliances, industrial equipment, and other small machines. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that can control motors bidirectionally with up to 3.6-A peak current. The inputs can be pulse-width modulated (PWM) to control motor speed, using a choice of current-decay modes. Setting both inputs low enters a low-power sleep mode.

The DRV8870 device features integrated current regulation, based on the analog input VREF and the voltage on the ISEN pin, which is proportional to motor current through an external sense resistor. The ability to limit current to a known level can significantly reduce the system power requirements and bulk capacitance needed to maintain stable voltage, especially for motor startup and stall conditions.

The device is fully protected from faults and short circuits, including undervoltage (UVLO), overcurrent (OCP), and overtemperature (TSD). When the fault condition is removed, the device automatically resumes normal operation.

The DRV8870 device is a brushed-DC motor driver for printers, appliances, industrial equipment, and other small machines. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that can control motors bidirectionally with up to 3.6-A peak current. The inputs can be pulse-width modulated (PWM) to control motor speed, using a choice of current-decay modes. Setting both inputs low enters a low-power sleep mode.

The DRV8870 device features integrated current regulation, based on the analog input VREF and the voltage on the ISEN pin, which is proportional to motor current through an external sense resistor. The ability to limit current to a known level can significantly reduce the system power requirements and bulk capacitance needed to maintain stable voltage, especially for motor startup and stall conditions.

The device is fully protected from faults and short circuits, including undervoltage (UVLO), overcurrent (OCP), and overtemperature (TSD). When the fault condition is removed, the device automatically resumes normal operation.

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技術文件

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類型 標題 日期
* Data sheet DRV88703.6-A Brushed DC Motor Driver (PWM Control) datasheet (Rev. B) PDF | HTML 2016年 7月 5日
Application note Understanding Motor Driver Current Ratings (Rev. A) PDF | HTML 2024年 7月 5日
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 2021年 10月 14日
Application note Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) PDF | HTML 2021年 7月 22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 Overcoming design challenges for brushed-DC motors in smart sanitation systems PDF | HTML 2020年 7月 1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 note PowerPAD™ Thermally Enhanced Package (Rev. H) 2018年 7月 6日
EVM User's guide DRV8870 Evaluation Module User's Guide 2015年 8月 29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

DRV8870EVM — DRV8870 H 橋 PWM 馬達驅動器評估模組

The DRV8870 evaluation module (EVM) demonstrates the capabilities and performance of the DRV8870 integrated circuit from Texas Instruments. The EVM includes a 5V regulator and PWM generator. A single power source is required to evaluate the DRV8870.

使用指南: PDF
TI.com 無法提供
參考設計

TIDA-01588 — 適用於有刷直流伺服驅動的 10.8-V/15-W、>90% 效率、2.4-cm2、功率級參考設計

This 15W, 12-mm x 20-mm, power stage reference design drives and controls the position of the brushed DC (BDC) motor operating from a three to six cell Li-ion battery. This highly efficient solution is optimized with a very small form factor that easily fits into the motor, and supports precise (...)
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HSOIC (DDA) 8 Ultra Librarian
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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
  • 進行中持續性的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

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