MP6508 2.7-18V, 1.2A Bipolar Stepper Motor Driver TSSOP-16

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MP6508 2.7-18V, 1.2A Bipolar Stepper Motor Driver TSSOP-16

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MPS TSSOP-16 Power Management Motor Drivers & Controllers Motor

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MP6508 2.7-18V, 1.2A Bipolar Stepper Motor Driver TSSOP-16

The MPS MP6508 is a Bipolar Stepper Motor Driver. It operates from a 2.7 V to 18 V input and is rated for 1.2 A. It is supplied in a TSSOP-16 package.

The MP6508 is a bipolar stepper-motor driver with dual, built-in full-bridges consisting of N- channel power MOSFETs.

Key Specifications

Part Number	MP6508
Function	Bipolar Stepper Motor Driver
Input Voltage	2.7 V to 18 V
Current Rating	1.2 A
Package	TSSOP-16
Ordering Codes	MP6508

Features

Wide 2.7V to 18V Input Voltage Range
Two Internal Full Bridge Drivers
Low On Resistance(HS:250mΩ; LS:250mΩ)
Internal Charger Pump for the High-Side Driver
Low Quiescent Current:1.6mA
Low Sleep Current: 1uA
Over-Current Protection
Thermal Shutdown and UVLO Protection
Fault Indication Output
Thermally-Enhanced Surface-Mount Package

Typical Application Circuit

Applications

POS Printers
Video Security Camera
Digital Still Cameras

Design Notes

Set dead time to match the external FET turn-off, not the datasheet typical. Too little risks shoot-through, too much distorts the current waveform at low duty cycle.
Use a Kelvin connection for the current-sense resistor; shared copper injects switching noise straight into the sense amplifier.
The thermal pad is the only heat path for most packages — via-stitch it to a ground plane with at least 9 vias.
PWM frequency trades switching loss against current ripple in the motor inductance; 20 kHz keeps the drive out of the audible band.
Add a brake or coast path so regeneration during a fast stop does not pump the supply rail.