A29040AL-90 AMIC Technology, A29040AL-90 Datasheet

A29040AL-90

Manufacturer Part Number

A29040AL-90

Description

512K X 8 Bit CMOS 5.0 Volt-only/ Uniform Sector Flash Memory

Manufacturer

AMIC Technology

Datasheet

1.A29040AL-90.pdf (8 pages)

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2919

DUAL FULL-BRIDGE

MOTOR DRIVER

Motor Supply Voltage, V

Output Current, I

Logic Supply Voltage, V

Logic Input Voltage Range,

Output Emitter Voltage, V

Package Power Dissipation,

Operating Temperature Range,

Storage Temperature Range,

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.

ABSOLUTE MAXIMUM RATINGS

GROUND

SENSE

PHASE

OUT

REF 2

(Peak, t

(Continuous) ..........................

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

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

............................... -0.3 V to +7.0 V

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

at T

A2919SB

20 s) ........................ 1.0 A

OUT

150 C

................... 7.0 V

................... 45 V

.................. 1.5 V

LOAD

SUPPLY

SENSE

OUT

GROUND

PHASE

Dwg. PP-005

750 mA

GROUND

LOGIC

SUPPLY

REF 1

2919

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).

mined by the user’s selection of a reference voltage and sensing

resistor. Two logic-level inputs select output current limits of 0%, 41%,

67%, or 100% of the maximum level. A PHASE input to each bridge

determines load current direction.

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.

package with a copper lead-frame and heat sinkable tabs for improved

power dissipation capabilities. The A2919SLB is supplied in a 24-lead

surface-mountable SOIC. Their batwing construction provides for

maximum package power dissipation in the smallest possible construc-

tion. The A2919SB/SLB are available for operation from -40 C to

+85 C. To order, change the suffix from 'S–' to 'E–'. These devices

are also available on special order for operation to +125 C. For

applications not requiring quarter-step operation, but desire lower

detent or running current, the similar UDN2916B/EB/LB may be pre-

ferred.

FEATURES

Always order by complete part number:

Part Number

A2919SB

A2919SLB

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

Half- or Quarter-Step Operation of Bipolar Stepper Motors

The A2919SB and A2919SLB motor drivers are designed to drive

For PWM current control, the maximum output current is deter-

The bridges include both ground clamp and flyback diodes for

The A2919SB is supplied in a 24-pin dual in-line plastic batwing

Package

24-Pin DIP

24-Lead SOIC

PWM MOTOR DRIVER

DUAL FULL-BRIDGE

40 C/W

55 C/W

6.0 C/W

Related parts for A29040AL-90

A29040AL-90 Summary of contents

Page 1

DUAL FULL-BRIDGE MOTOR DRIVER A2919SB V LOAD BB OUT SUPPLY E OUT SENSE SENSE 4 21 OUT OUT 2B GROUND GROUND 6 19 ...

Page 2

DUAL FULL-BRIDGE MOTOR DRIVER A2919SLB PHASE REF GROUND 18 7 GROUND 8 LOGIC SUPPLY V 17 ...

DUAL FULL-BRIDGE MOTOR DRIVER ELECTRICAL CHARACTERISTICS 5.0 V (unless otherwise noted). REF Characteristic Output Drivers (OUT or OUT A Motor Supply Range Output Leakage Current Output Sustaining Voltage Output Saturation Voltage Clamp Diode Leakage Current ...

Page 4

DUAL FULL-BRIDGE MOTOR DRIVER PWM CURRENT CONTROL The A2919SB/SLB dual bridges are designed to drive both windings of a bipolar stepper motor. Output current is sensed and controlled independently in each bridge by an external sense resistor (R ), ...

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A29040AL-90 AMIC Technology, A29040AL-90 Datasheet

A29040AL-90

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A29040AL-90 Summary of contents

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