UDN2916LB

Series: -
Mounting Type: Surface Mount
Evaluation Tools: -
Packaging: Tube
Applications: DC Motor Driver, Stepper Motor Driver
Voltage - Load: 10 V ~ 45 V
Voltage - Supply: 4.75 V ~ 5.25 V
Operating Temperature: -20°C ~ 85°C
Manufacturer: Allegro Microsystems Inc
Number of Outputs: 2/1
Package / Case: 24-SOIC (0.295", 7.50mm Width)
Supplier Device Package: 24-SOIC W
Current - Output: ±750mA


Features:

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


Pinout




Specifications

Motor Supply Voltage, V_BB .................... 45 V
Output Current, IOUT
(Peak) ............................................... +1.0 A
(Continuous) ................................. +750 mA
Logic Supply Voltage, V_CC ................... 7.0 V
Logic Input Voltage Range,
V_IN ............................... -0.3 V to V_CC+0.3 V
Output Emitter Voltage, V_E ................  1.5 V
Package Power Dissipation,
P_D ............................................... See Graph
Operating Temperature Range,
T_A ..................................... -20°C to +85°C
Storage Temperature Range,
T_S ................................... -55°C to +150°C
Output current rating may be limited by duty cycle, ambient temperature, and heat sinking. Under any set of conditions, do not exceed the specified peak current rating or a junction temperature of +150°C.


Description

The UDN2916B, UDN2916EB, and UDN2916LB motor drivers are designed to 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 the user's 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 cross-over 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 UDN2916B is supplied in a 24-pin dual in-line plastic batwing package with a copper lead-frame and heat sinkable tabs for improved power dissipation capabilities. The UDN2916EB is supplied in a 44- lead power PLCC for surface mount applications. The UDN2916LB is supplied in a 24-lead surface-mountable SOIC. Their batwing construction provides for maximum package power dissipation in the smallest possible construction. The UDN2916B, UDN2916EB, and UDN2916LB are available for operation from 20°C to 85°C. The UDQ2916B and UDQ2916LB are available for operation from 40°C to 105°C. All packages are lead (Pb) free, with 100% matte tin leadframe.

Parameters:

Technical/Catalog Information	UDN2916LB
Vendor	Allegro Microsystems Inc
Category	Integrated Circuits (ICs)
Applications	DC Motor Driver, Stepper Motor Driver
Number of Outputs	2/1
Voltage - Supply	4.75 V ~ 5.25 V
Voltage - Load	10 V ~ 45 V
Current - Output	±750mA
Operating Temperature	-20°C ~ 85°C
Package / Case	24-SOIC (7.5mm Width)
Packaging	Tube
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	UDN2916LB UDN2916LB