http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fdrv8424e”>View Datasheet

Texas Instruments DRV842xE/DRV842xP Dual H-Bridge Motor Drivers

Texas Instruments DRV842xE/DRV842xP Dual H-Bridge Motor Drivers are dual H-bridge motor drivers for a wide variety of industrial applications. The devices can be used for driving two DC motors or a bipolar stepper motor. The output stage of the driver consists of N-channel power MOSFETs configured as two full H-bridges, charge pump regulator, current sensing and regulation, and protection circuitry. 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 an 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).

The Texas Instruments DRV8424E/P is capable of driving a stepper motor with up to 2.5A full scale or brushed motors with up to 4A peak. The DRV8425E/P is capable of driving a stepper motor with up to 2A full scale or brushed motors with up to 3.2A peak (dependent on PCB design).

Features

Dual H-bridge motor driver
- One bipolar stepper motor
- Dual bidirectional brushed-DC motors
- Four unidirectional brushed-DC motors
Integrated current sense functionality
- No sense resistors required
- ±5% Full-scale current accuracy
4.5V to 33V operating supply voltage range
Multiple control interface options
- PHASE/ENABLE (PH/EN)
- PWM (IN/IN)
Smart tune, fast and mixed decay options
Low R_DS(ON)
- DRV8424E/P: 330mΩ HS + LS at 24V, 25°C
- DRV8425E/P: 550mΩ HS + LS at 24V, 25°C
High Current Capacity Per Bridge
- DRV8424E/P: 4A peak (brushed), 2.5A full-scale (stepper)
- DRV8425E/P: 3.2A peak (brushed), 2A full-scale (stepper)

Pin to pin compatible with
- DRV8426E/P: 33V, 900mΩ HS + LS
- DRV8436E/P: 48V, 900mΩ HS + LS
- DRV8434E/P: 48V, 330mΩ HS + LS
Configurable Off-Time PWM Chopping
- 7µs, 16µs, 24µs or 32µs
Supports 1.8V, 3.3V, 5.0V logic inputs
Low-current sleep mode (2µA)
Spread-spectrum clocking for low electromagnetic interference (EMI)
Inrush current limiting in brushed-DC applications
Small package and footprint
Protection features
- VM undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Thermal shutdown (OTSD)
- Fault condition output (nFAULT)

Applications

Printers and scanners
ATMs and Textile Machines
Office and home automation

Factory automation and robotics
Major home appliances
Vacuum, humanoid, and toy robotics

Texas Instruments DRV842xE/DRV842xP Dual H-Bridge Motor Drivers

Features

Applications

Simplified Schematics

husseinkey ELECTRONICS®

COMPANY