GUI for evaluation module (EVM)
DRV8847
18-V, 2-A dual H-bridge motor driver with current regulation and independent half-bridge con
Data sheet
DRV8847
- 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.
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Technical documentation
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Evaluation board
DRV8847EVM — DRV8847 Dual H-Bridge Motor Driver Evaluation Module
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 (...)
User guide: PDF
Evaluation board
DRV8847SEVM — DRV8847S Dual H-Bridge Motor Driver Evaluation Module
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 (...)
User guide: PDF
Support software
SLVC728 — DRV8847 Software
Supported products & hardware
Products
Stepper motor drivers
Hardware development
Evaluation board
Reference designs
TIDA-010072 — Air blower and valve control reference design for respiratory applications
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 (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (PWP) | 16 | Ultra Librarian |
| TSSOP (PW) | 16 | Ultra Librarian |
| WQFN (RTE) | 16 | Ultra Librarian |
Ordering & quality
Information included:
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- Lead finish/Ball material
- MSL rating/Peak reflow
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Information included:
- Fab location
- Assembly location
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