UDx2916: Dual Full-Bridge PWM Motor Driver

This device is no longer in production. The device should not be purchased for new design applications. Samples are no longer available. Date of status change: January 30, 2012. 

Recommended Substitutions: For existing customer transition, and for new customers or new applications, refer to the A4970.

The UDx2916 motor drivers drive both windings of a bipolar stepper motor or bidirectionally control two DC motors. Both bridges are capable of sustaining 45 V and include internal pulse-width modulation (PWM) control of the output current to 750 mA. The outputs have been optimized for a low output saturation voltage drop (less than 1.8 V total source plus sink at 500 mA).

For PWM current control, the maximum output current is determined by user selection of a reference voltage and sensing resistor. Two logic-level inputs select output current limits of 0%, 33%, 67%, or 100% of the maximum level. A PHASE input to each bridge determines load current direction.

The bridges include both ground-clamp and flyback diodes for protection against inductive transients. Internally generated delays prevent crossover currents when switching current direction. Special power-up sequencing is not required. Thermal protection circuitry disables the outputs if the chip temperature exceeds safe operating limits.

The device is supplied in a 24-pin dual in-line plastic (DIP, package B) with two pairs of batwing leads as heat-sinkable tabs for enhanced power dissipation capabilities. The LB package is a 24-lead surface-mount wide SOIC with two pairs of batwing leads. The EB package is a 44-lead power PLCC with 11 internally-fused leads on two sides. Their webbed-lead construction provides for maximum package power dissipation in the smallest possible construction.

The devices are available for operation from –20°C to 85°C (range N), and from –40°C to 105°C (range Q). All packages are lead (Pb) free, with 100% matte tin leadframe plating.

DATASHEETS
SAMPLE & BUY

Astrorep Inc. (Allegro and Sanken Semiconductors, Sanken Power Supplies)
141 John Street, Suite 300
Babylon, NY 11702
Phone: (631)422-2500
Fax: (631)422-2504
Web: www.astrorepinc.com
Email: donna.tweedy@astrorepinc.com

If this is not your local representative, find your local sales rep here.

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  • Features and BenefitsFeatures and Benefits
  • PackagingPackaging
  • Technical DocsTechnical Docs
  • NewsNews
  • 750 mA Continuous Output Current
  • 45 V Output Sustaining Voltage
  • Internal Clamp Diodes
  • Internal PWM Current Control
  • Low Output Saturation Voltage
  • Internal Thermal Shutdown Circuitry
  • Similar to Dual PBL3717, UC3770

The device is supplied in a 24-pin dual in-line plastic (DIP, package B) with two pairs of batwing leads as heat-sinkable tabs for enhanced power dissipation capabilities. The LB package is a 24-lead surface-mount wide SOIC with two pairs of batwing leads. The EB package is a 44-lead power PLCC with 11 internally-fused leads on two sides. Their webbed-lead construction provides for maximum package power dissipation in the smallest possible construction.

Packages

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Functional Block Diagram Packages

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
UDN2916B-T 24-lead DIP -20°C to 85°C Yes View Data Discontinued Contact your
local sales rep
Check Stock
UDN2916EBTR-T 44-lead PLCC -20°C to 85°C Yes View Data Discontinued Contact your
local sales rep
Check Stock
UDN2916LBTR-T 24-lead SOIC -20°C to 85°C Yes View Data Discontinued Contact your
local sales rep
Check Stock
UDQ2916LB-T 24-lead SOIC -40°C to 105°C Yes View Data Discontinued Contact your
local sales rep
Check Stock
UDQ2916LBTR-T 24-lead SOIC -40°C to 105°C Yes View Data Discontinued Contact your
local sales rep
Check Stock

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