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馬達驅動器
步進馬達驅動器

DRV8847

現行

具電流調節和獨立半橋控制的 18V、2-A 雙全橋馬達驅動器

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產品規格表

DRV8847

現行
產品規格表 立即訂購

產品詳細資料

Number of full bridges 2 Vs (min) (V) 2.7 Vs ABS (max) (V) 20 Full-scale current (A) 1 Peak output current (A) 2 RDS(ON) (HS + LS) (mΩ) 1000 Sleep current (µA) 1.7 Control mode Independent 1/2-Bridge Control interface Hardware (GPIO), I2C Features Current Regulation, Open-Load Detection Rating Catalog Operating temperature range (°C) -40 to 125
Number of full bridges 2 Vs (min) (V) 2.7 Vs ABS (max) (V) 20 Full-scale current (A) 1 Peak output current (A) 2 RDS(ON) (HS + LS) (mΩ) 1000 Sleep current (µA) 1.7 Control mode Independent 1/2-Bridge Control interface Hardware (GPIO), I2C Features Current Regulation, Open-Load Detection Rating Catalog Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 16 32 mm² 5 x 6.4 TSSOP (PW) 16 32 mm² 5 x 6.4 WQFN (RTE) 16 9 mm² 3 x 3
  • Dual H-bridge motor driver
    • Single or dual-brushed DC motors
    • One bipolar stepper motor
    • Solenoid loads
  • 2.7-V to 18-V operating voltage range
  • High output current per H-bridge
    • 1-A RMS driver current at T A = 25°C
    • 2-A RMS driver current in parallel mode at T A = 25°C
  • Low on-state resistance at VM > 5-V
    • 1000 mΩ R DS(ON) (HS + LS) at T A = 25°C
  • Multiple control interface options
    • 4-Pin interface
    • 2-Pin interface
    • Parallel bridge interface
    • Independent bridge interface
  • Current regulation with 20-µs fixed off-time
  • Torque scalar for scaling output current to 50%
  • Supports 1.8-V, 3.3-V, 5-V logic inputs
  • Low-power sleep mode
    • 1.7-µA Sleep mode supply current at V VM = 12-V, T A = 25°C
  • I 2C Device Variant Available (DRV8847S)
    • Detailed diagnostics on I 2C registers
    • Multi-slave operation support
    • Supports standard and fast I 2C mode
  • Small packages and footprints
    • 16 Pin TSSOP (no thermal pad)
    • 16 Pin HTSSOP PowerPAD™ package
    • 16 Pin WQFN thermal package
  • Built-in protection features
    • VM undervoltage lockout
    • Overcurrent protection
    • Open load detection
    • Thermal shutdown
    • Fault condition indication pin (nFAULT)
  • Dual H-bridge motor driver
    • Single or dual-brushed DC motors
    • One bipolar stepper motor
    • Solenoid loads
  • 2.7-V to 18-V operating voltage range
  • High output current per H-bridge
    • 1-A RMS driver current at T A = 25°C
    • 2-A RMS driver current in parallel mode at T A = 25°C
  • Low on-state resistance at VM > 5-V
    • 1000 mΩ R DS(ON) (HS + LS) at T A = 25°C
  • Multiple control interface options
    • 4-Pin interface
    • 2-Pin interface
    • Parallel bridge interface
    • Independent bridge interface
  • Current regulation with 20-µs fixed off-time
  • Torque scalar for scaling output current to 50%
  • Supports 1.8-V, 3.3-V, 5-V logic inputs
  • Low-power sleep mode
    • 1.7-µA Sleep mode supply current at V VM = 12-V, T A = 25°C
  • I 2C Device Variant Available (DRV8847S)
    • Detailed diagnostics on I 2C registers
    • Multi-slave operation support
    • Supports standard and fast I 2C mode
  • Small packages and footprints
    • 16 Pin TSSOP (no thermal pad)
    • 16 Pin HTSSOP PowerPAD™ package
    • 16 Pin WQFN thermal package
  • Built-in protection features
    • VM undervoltage lockout
    • Overcurrent protection
    • Open load detection
    • Thermal shutdown
    • Fault condition indication pin (nFAULT)

The DRV8847 device is a dual H-bridge motor driver for industrial applications, home appliances, ePOS printers, and other mechatronic applications. This device can be used for driving two DC motors, a bipolar stepper motor, or other loads such as relays. A simple PWM interface allows an easy interface with the controller. The DRV8847 device operates off a single power supply and supports a wide input supply range from 2.7 to 18 V.

The output stage of the driver consists of N-channel power MOSFETs configured as two full H-bridges to drive motor windings or four independent half bridges (in an independent bridge interface). A fixed off time controls the peak current in the bridge which can drive a 1-A load (2-A in parallel mode with proper heat sinking, at 25°C T A).

A low-power sleep mode is provided to achieve a low quiescent current draw by shutting down much of the internal circuitry. Additionally, a torque scalar is provided which dynamically scales the output current through a digital input pin. This feature lets the controller decrease the current required for lower power consumption.

Internal protection functions are provided for undervoltage-lockout, overcurrent protection on each FET, short circuit protection, open-load detection, and overtemperature. Fault conditions are indicated by the nFAULT pin. The I 2C device variant (DRV8847S) has detailed diagnostics.

The DRV8847 device is a dual H-bridge motor driver for industrial applications, home appliances, ePOS printers, and other mechatronic applications. This device can be used for driving two DC motors, a bipolar stepper motor, or other loads such as relays. A simple PWM interface allows an easy interface with the controller. The DRV8847 device operates off a single power supply and supports a wide input supply range from 2.7 to 18 V.

The output stage of the driver consists of N-channel power MOSFETs configured as two full H-bridges to drive motor windings or four independent half bridges (in an independent bridge interface). A fixed off time controls the peak current in the bridge which can drive a 1-A load (2-A in parallel mode with proper heat sinking, at 25°C T A).

A low-power sleep mode is provided to achieve a low quiescent current draw by shutting down much of the internal circuitry. Additionally, a torque scalar is provided which dynamically scales the output current through a digital input pin. This feature lets the controller decrease the current required for lower power consumption.

Internal protection functions are provided for undervoltage-lockout, overcurrent protection on each FET, short circuit protection, open-load detection, and overtemperature. Fault conditions are indicated by the nFAULT pin. The I 2C device variant (DRV8847S) has detailed diagnostics.
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類型 標題 日期
* Data sheet DRV8847 Dual H-Bridge Motor Driver datasheet (Rev. C) PDF | HTML 2023年 3月 28日
Application brief Open Load Detection in Integrated Drivers (Rev. C) PDF | HTML 2022年 3月 31日
Application note How to Drive Unipolar Stepper Motor with the DRV8xxx PDF | HTML 2021年 12月 3日
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 2021年 10月 14日
Application note L1 and L2 EV Charger Electric Vehicle Service Equipment Design Considerations (Rev. B) 2021年 6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 Drive unipolar stepper motors as bipolar stepper motors with a simple wiring recon PDF | HTML 2020年 4月 9日
White paper How to optimize building and home automation designs for energy efficiency 2020年 4月 8日
Technical article Automating smart home blinds, shades and shutters with motor drivers PDF | HTML 2020年 1月 2日
Application note Design and Implementation of Stepper Motor Control Over I2C Communication 2018年 9月 10日
Application brief Multiple Stepper-Motors Control With Two-Pins 2018年 9月 4日
White paper Remote Shut Off in Flow Meters is Instrumental for Smart Utility Deployment 2018年 8月 10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
EVM User's guide DRV8847EVM and DRV8847SEVM Software User's Guide 2018年 6月 18日
EVM User's guide DRV8847EVM User's Guide 2018年 6月 13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

DRV8847EVM — DRV8847 雙 H 橋馬達驅動器評估模組

The DRV8847 evaluation module (EVM) is an application board design to allow easy evaluation of the DRV8847 device. The DRV8847 device is an integrated low voltage dual H-bridge driver and highly-configurable power stage for industrial brushed DC, stepper motor, and solenoid applications. This (...)

使用指南: PDF
TI.com 無法提供
開發板

DRV8847SEVM — DRV8847S 雙 H 橋馬達驅動器評估模組

The DRV8847S evaluation module (EVM) is an application board design to allow easy evaluation of the DRV8847S device. The DRV8847S device is an integrated low voltage dual H-bridge driver and highly-configurable power stage for industrial brushed DC, stepper motor, and solenoid applications. This (...)

使用指南: PDF
TI.com 無法提供
開發模組 (EVM) 的 GUI

SLVC729 — DRV8847EVM GUI

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支援產品和硬體

產品
步進馬達驅動器
DRV8847 — 具電流調節和獨立半橋控制的 18V、2-A 雙全橋馬達驅動器
硬體開發
開發板
DRV8847EVM — DRV8847 雙 H 橋馬達驅動器評估模組 DRV8847SEVM — DRV8847S 雙 H 橋馬達驅動器評估模組
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支援軟體

SLVC728 — DRV8847 Software

支援產品和硬體

支援產品和硬體

產品
步進馬達驅動器
DRV8847 — 具電流調節和獨立半橋控制的 18V、2-A 雙全橋馬達驅動器
硬體開發
開發板
DRV8847EVM — DRV8847 雙 H 橋馬達驅動器評估模組 DRV8847SEVM — DRV8847S 雙 H 橋馬達驅動器評估模組
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參考設計

TIDA-010072 — 適合呼吸應用的鼓風機與閥門控制參考設計

This reference design provides a compact system design capable of supporting motor acceleration and deceleration up to ±200 kRPM/s, which is a key requirement in many respirator applications. The design supports a number of offboard C2000 controllers including (...)
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
TSSOP (PW) 16 Ultra Librarian
WQFN (RTE) 16 Ultra Librarian
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