DRV8847 Series

18-V, 2-A dual H-bridge motor driver with current regulation and independent half-bridge con

Catalog

18-V, 2-A dual H-bridge motor driver with current regulation and independent half-bridge con

Part	Applications	Interface	Function	Mounting Type	Output Configuration	Motor Type - Stepper	Voltage - Supply [Max]	Voltage - Supply [Min]	Supplier Device Package	Motor Type - AC, DC	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Technology	Voltage - Load [Max]	Voltage - Load [Min]	Package / Case [x]	Package / Case	Package / Case [y]	Type	Contents	Utilized IC / Part	Supplied Contents	Primary Attributes	Secondary Attributes
Texas Instruments DRV8847SPWR	General Purpose	I2C PWM	Driver - Fully Integrated Control and Power Stage	Surface Mount	Half Bridge (4)	Bipolar	18 V	2.7 V	16-TSSOP	Brushed DC	150 °C	-40 °C	2 A	Power MOSFET	18 V	2.7 V	0.173 in	16-TSSOP	4.4 mm
Texas Instruments DRV8847PWR	General Purpose	PWM	Driver - Fully Integrated Control and Power Stage	Surface Mount	Half Bridge (4)	Bipolar	18 V	2.7 V	16-TSSOP	Brushed DC	150 °C	-40 °C	2 A	Power MOSFET	18 V	2.7 V	0.173 in	16-TSSOP	4.4 mm
Texas Instruments DRV8847EVM			Motor Controller/Driver																	Power Management	Board(s)	DRV8847	Board(s)	Motors (DC)	Graphical User Interface (GUI)
Texas Instruments DRV88471RTER	General Purpose	PWM	Driver - Fully Integrated Control and Power Stage	Surface Mount	Half Bridge (4)	Bipolar	18 V	2.7 V	16-WQFN (3x3)	Brushed DC	125 °C	-40 °C	2 A	Power MOSFET	18 V	2.7 V		16-WFQFN Exposed Pad

Catalog

18-V, 2-A dual H-bridge motor driver with current regulation and independent half-bridge con

Key Features

• Dual H-bridge motor driverSingle or dual-brushed DC motorsOne bipolar stepper motorSolenoid loads2.7-V to 18-V operating voltage rangeHigh output current per H-bridge1-A RMS driver current at T A = 25°C2-A RMS driver current in parallel mode at T A = 25°CLow on-state resistance at VM > 5-V1000 mΩ R DS(ON) (HS + LS) at T A = 25°CMultiple control interface options4-Pin interface2-Pin interfaceParallel bridge interfaceIndependent bridge interfaceCurrent regulation with 20-µs fixed off-timeTorque scalar for scaling output current to 50%Supports 1.8-V, 3.3-V, 5-V logic inputsLow-power sleep mode1.7-µA Sleep mode supply current at V VM = 12-V, T A = 25°CI 2C Device Variant Available (DRV8847S)Detailed diagnostics on I 2C registersMulti-slave operation supportSupports standard and fast I 2C modeSmall packages and footprints16 Pin TSSOP (no thermal pad)16 Pin HTSSOP PowerPAD™ package16 Pin WQFN thermal packageBuilt-in protection featuresVM undervoltage lockoutOvercurrent protectionOpen load detectionThermal shutdownFault condition indication pin (nFAULT)Dual H-bridge motor driverSingle or dual-brushed DC motorsOne bipolar stepper motorSolenoid loads2.7-V to 18-V operating voltage rangeHigh output current per H-bridge1-A RMS driver current at T A = 25°C2-A RMS driver current in parallel mode at T A = 25°CLow on-state resistance at VM > 5-V1000 mΩ R DS(ON) (HS + LS) at T A = 25°CMultiple control interface options4-Pin interface2-Pin interfaceParallel bridge interfaceIndependent bridge interfaceCurrent regulation with 20-µs fixed off-timeTorque scalar for scaling output current to 50%Supports 1.8-V, 3.3-V, 5-V logic inputsLow-power sleep mode1.7-µA Sleep mode supply current at V VM = 12-V, T A = 25°CI 2C Device Variant Available (DRV8847S)Detailed diagnostics on I 2C registersMulti-slave operation supportSupports standard and fast I 2C modeSmall packages and footprints16 Pin TSSOP (no thermal pad)16 Pin HTSSOP PowerPAD™ package16 Pin WQFN thermal packageBuilt-in protection featuresVM undervoltage lockoutOvercurrent protectionOpen load detectionThermal shutdownFault condition indication pin (nFAULT)

Description

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.