UDN2943Z ALLEGRO [Allegro MicroSystems], UDN2943Z Datasheet

UDN2943Z

Manufacturer Part Number

UDN2943Z

Description

HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER

Manufacturer

ALLEGRO [Allegro MicroSystems]

Datasheet

1.UDN2943Z.pdf (6 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

UDN2943Z

Manufacturer:

PHILIPS

Quantity:

5 000

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2943

HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER

Supply Voltage, Range V

Output Voltage, V

Input Voltage Range, V

Continuous Output Current, I

Package Power Dissipation,

Operating Temperature Range,

Storage Temperature Range,

*Internal high-voltage shutdown above 24 V.

ABSOLUTE MAXIMUM RATINGS

................................. -20 C to +85 C

............................... -55 C to +150 C

....................................... See Graph

CE(sus)

....................... 24 V

.... -0.3 V to +18 V

.... 8.5 V to 35 V*

OUT

Dwg. PP-022-1

...... 1.0 A

2943

UDN2943Z half-bridge driver combines high-current sink and source

drivers with logic stages, level shifting, diode transient protection, and

a voltage regulator for single-supply operation. Capable of operating

in extremely harsh environments, this device can withstand high

ambient temperatures, output overloads, and repeated power supply

transient voltages without damage. The driver can be used in pairs for

full-bridge operation, or as triplets in three-phase brushless dc motor-

drive applications.

and NMOS logic. Logic lockout prevents both source and sink drivers

from turning ON simultaneously. Each driver is turned ON by an active-

low input, making the UDN2943Z especially desirable in many micro-

processor applications. An accidental input open circuit will turn OFF

the corresponding output. The device also provides an internally-

generated dead time to prevent crossover currents during output

switching. Monolithic, space-saving construction offers reliability

unobtainable with discrete components.

maximum rated current. Internal short-circuit protection, activated at

load currents above 1 A, protects the source driver from accidental

short-circuits between the output and ground.

inductive loads at supply voltages of up to 24 V. With supply voltage

transients (to 35 V maximum), a high-voltage protection circuit

becomes operative, shutting OFF both output drivers. The internal

thermal shutdown is triggered by a nominal junction temperature

of 160 C.

package provide cost-effective and reliable systems designs.

It also features excellent power dissipation ratings, minimum size, and

ease of installation. The heat-sink tab is at ground potential and does

not require insulation.

FEATURES

Always order by complete part number: UDQ2943Z .

HALF-BRIDGE MOTOR DRIVER

Saturated Output Drivers

Logic-Compatible Inputs

Output-Transient Protection

Tri-State Output

A A

1 A Output Current

Designed for use as a general-purpose motor driver, the

The input circuitry is compatible with TTL, low-voltage CMOS,

Saturated output drivers provide for low saturation voltage at the

The UDN2943Z driver is rated for continuous operation with

Single-chip construction and a 5-lead power-tab TS-001 plastic

MicroSystems, Inc.

HIGH-CURRENT

8.5 V to 24 V Operating Range

Crossover-Current Protected

Withstands 35 V Supply Transients

Internal Over-Voltage Protection

Internal Short-Circuit Protection

Related parts for UDN2943Z

UDN2943Z Summary of contents

Page 1

... NMOS logic. Logic lockout prevents both source and sink drivers from turning ON simultaneously. Each driver is turned active- low input, making the UDN2943Z especially desirable in many micro- processor applications. An accidental input open circuit will turn OFF the corresponding output. The device also provides an internally- generated dead time to prevent crossover currents during output switching ...

Page 2

HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER SOURCE 2 INPUT 2.1 V SINK 5 INPUT AAVID 5071B + 5072B HEAT SINKS 9.0 C STAVER V1-5 HEAT SINK C FREE AIR, ...

Page 3

HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER ELECTRICAL CHARACTERISTICS at T Characteristic Output Leakage Current ( Output Sustaining Voltage Output Saturation Voltage Short-Circuit Source Current Logic Input Voltage Input Current Clamp Diode Forward Voltage Logic Supply Current Thermal ...

Page 4

HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER 2 OUT Dwg. EP-053 Figure 2 OUT Dwg. EP-056 Figure ...

Page 5

HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER Dimensions in Inches 0.415 0.156 0.390 0.139 0.625 0.539 0.570 0.465 1 5 1.045 0.945 0.040 0.020 0.067 BSC 0.190 0.165 O 0.055 0.035 13.69 11.81 0.370 0.330 26.54 24.00 0.025 1.01 0.012 0.51 0.115 ...

Page 6

HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER Function INTEGRATED CIRCUITS FOR BRUSHLESS DC MOTORS 3-Phase Controller/Drivers Hall-Effect Latched Sensors 2-Phase Hall-Effect Sensor/Controller Hall-Effect Complementary Output Sensor 2-Phase Hall-Effect Sensor/Driver 2-Phase Hall-Effect Sensor/Driver Hall-Effect Comp. Output Sensor/Driver 3-Phase Back-EMF Controller/Driver 3-Phase Controller/DMOS Driver ...

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