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2998

Allegro MicroSystems
Part Number 2998
Manufacturer Allegro MicroSystems
Description DUAL FULL-BRIDGE MOTOR DRIVER
Published May 28, 2005
Detailed Description 2998 DUAL FULL-BRIDGE MOTOR DRIVER As an interface between low-level logic and solenoids, dc (brush) motors, or stepper...
Datasheet PDF File 2998 PDF File

2998
2998

Overview
2998 DUAL FULL-BRIDGE MOTOR DRIVER As an interface between low-level logic and solenoids, dc (brush) motors, or stepper motors, the UDN2998W dual full-bridge driver will operate inductive loads up to 50 V with continuous output currents of up to 2 A per bridge or peak (start-up) currents to 3 A.
The control inputs are compatible with TTL, DTL, and 5 V CMOS logic.
Except for a common supply voltage and thermal shutdown, the two drivers in each package are completely independent.
For external PWM control, an Output Enable for each bridge circuit is provided and the sink driver emitters are pinned out for connection to external current-sensing resistors.
The chopper drive mode is characterized by low power dissipation levels and maximum efficiency.
A PHASE input to each bridge determines load-current direction.
Extensive circuit protection is provided on-chip.
Both groundclamp and flyback diodes for each bridge are provided.
A thermal shutdown circuit disables the load drive if chip temp...


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