DESCRIPTION

The MP6614 is an H-bridge motor driver

designed to drive reversible motors. The device

can drive one DC motor, one winding of a

stepper motor, or other loads. The H-bridge

integrates four N-channel power MOSFETs,

and an internal charge pump generates the

required gate driver voltages.

The MP6614 operates across a 5V to 35V input

supply (VIN) range. It can deliver up to 2A of

continuous current (IOUT), depending on the

thermal and PCB layout.

The MP6614 provides a pulse-width modulation

(PWM) input interface that is compatible with

industry-standard devices. A brake is applied to

stop the motor, and a very low standby circuit

current can be achieved when the device is

disabled.

An internal current-sense circuit provides an

output voltage (VISEN) that is proportional to the

load current (IOUT). In addition, cycle-by-cycle

current regulation and limiting are provided.

These features do not require a low-ohmic

shunt resistor.

Internal protection features include over-current

protection (OCP), short-circuit protection (SCP),

under-voltage lockout (UVLO), and overtemperature protection (OTP).

The MP6614 requires a minimal number of

readily available, standard external

components. The MP6614 is available in a

SOIC-8EP package.

FEATURES

? Wide 5V to 35V Operating Input Voltage

(VIN) Range

? Internal Full H-Bridge Driver Supports 100%

Duty Cycle

? 2A Continuous Output Current (IOUT)

? Low On Resistance (RDS(ON)) per MOSFET:

o 280mΩ High-Side MOSFET (HS-FET)

o 220mΩ Low-Side MOSFET (LS-FET)

? Simple, Versatile Logic Interfaces

? 3.3V and 5V Compatible Logic Supply

? Cycle-by-Cycle Current Regulation and

Limiting

? Low Standby Circuit Current

? Over-Current Protection (OCP)

? Thermal Shutdown

? Under-Voltage Lockout (UVLO)

? Internal Charge Pump

? Available in a Thermally Enhanced,

Surface-Mounted SOIC-8EP Package

APPLICATIONS

? Solenoid Drivers

? Brushed DC Motor Drivers