A5988GEVTR-1-T datasheet, PDF - EEWORLD Datasheet

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A5988GEVTR-1-T: DescriptionIC DC MOTOR DRVR PWM 36QFN; Categorysemiconductor Power management; File Size744KB，14 Pages; ManufacturerAllegro; Websitehttp://www.allegromicro.com/; Environmental Compliance

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A5988GEVTR-1-T Overview

IC DC MOTOR DRVR PWM 36QFN

A5988GEVTR-1-T Parametric

Parameter Name	Attribute value
Motor Type - Stepper	bipolar
Motor Type – AC, DC	Brushed DC
Function	Drivers - fully integrated, control and power stage
Output configuration	half bridge (8)
interface	PWM
technology	DMOS
Step resolution	1，1/2，1/4
application	Universal
Current - Output	1.6A
Voltage - Power	8 V ~ 40 V
Voltage - Load	8 V ~ 40 V
Operating temperature	-40°C ~ 150°C（TJ）
Installation type	surface mount
Package/casing	36-VFQFN Exposed Pad
Supplier device packaging	36-QFN-EP（6x6）

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A5988

Quad DMOS Full-Bridge PWM Motor Driver

FEATURES AND BENEFITS

•

40 V output rating

4 full bridges

Dual stepper motor driver

High-current outputs

3.3 and 5 V compatible logic

Synchronous rectification

Internal undervoltage lockout (UVLO)

Thermal shutdown circuitry

Crossover-current protection

Overcurrent protection

Low-power sleep mode

Low-profile QFN package

The A5988 is a quad DMOS full-bridge driver capable of driving

up to two stepper motors or four DC motors. Each full-bridge

output is rated up to 1.6 A and 40 V. The A5988 includes fixed

off-time pulse-width modulation (PWM) current regulators,

along with 2- bit nonlinear DACs (digital-to-analog converters)

that allow stepper motors to be controlled in full, half, and

quarter steps, and DC motors in forward, reverse, and coast

modes. The PWM current regulator uses the Allegro

™

patented

mixed decay mode for reduced audible motor noise, increased

step accuracy, and reduced power dissipation.

Internal synchronous rectification control circuitry is provided

to improve power dissipation during PWM operation.

Protection features include thermal shutdown with hysteresis,

undervoltage lockout (UVLO) and crossover-current protection.

Special power-up sequencing is not required.

The A5988 is supplied in two packages, EV and JP, with exposed

power tabs for enhanced thermal performance. The EV is a

6 mm × 6 mm, 36-pin QFN package with a nominal overall

package height of 0.90 mm. The JP is a 7 mm × 7 mm 48-pin

LQFP. Both packages are lead (Pb) free, with 100% matte-tin

leadframe plating.

DESCRIPTION

PACKAGES

Package EV, 36-pin QFN

0.90 mm nominal height

with exposed thermal pad

Package JP, 48-pin LQFP

with exposed thermal pad

Not to scale

0.1 µF

50 V

0.1 µF

50 V

MOTOR

32 V

100 µF

50 V

0.22 µF

50 V

VBB1

* JP package only

FAULTn*

PHASE1

I01

I11

PHASE2

I02

Microprocessor

I12

PHASE3

I03

I13

PHASE4

I04

I14

VREF1

REF

VREF2

VREF3

VREF4

SLEEPn

VBB2

OUT1A

OUT1B

OUT2A

OUT2B

OUT3A

VCP

CP1

CP2

Bipolar Stepper Motors

A5988

OUT3B

OUT4A

OUT4B

SENSE2

SENSE1

SENSE3

SENSE4

Figure 1: Typical Application Circuit

A5988-DS, Rev. 1

A5988GEVTR-1-T Related Products

	A5988GEVTR-1-T	A5988GJPTR-T	A5988GJPTR-1-T	APEK5988GEV-01-T-DK	A5988GEVTR-T
Description	IC DC MOTOR DRVR PWM 36QFN	IC DC MOTOR DRVR PWM 48LQFP	IC DC MOTOR DRVR PWM 48LQFP	DEMO BOARD FOR A5988	Miniature, two-wire true zero-speed differential peak detection sensor
Motor Type - Stepper	bipolar	bipolar	bipolar	-	-
Motor Type – AC, DC	Brushed DC	Brushed DC	Brushed DC	-	-
Function	Drivers - fully integrated, control and power stage	Drivers - fully integrated, control and power stage	Drivers - fully integrated, control and power stage	Motor controller/driver	-
Output configuration	half bridge (8)	half bridge (8)	half bridge (8)	-	-
interface	PWM	PWM	PWM	-	-
technology	DMOS	DMOS	DMOS	-	-
Step resolution	1，1/2，1/4	1，1/2，1/4	1，1/2，1/4	-	-
application	Universal	Universal	Universal	-	-
Current - Output	1.6A	1.6A	1.6A	-	-
Voltage - Power	8 V ~ 40 V	8 V ~ 40 V	8 V ~ 40 V	-	-
Voltage - Load	8 V ~ 40 V	8 V ~ 40 V	8 V ~ 40 V	-	-
Operating temperature	-40°C ~ 150°C（TJ）	-40°C ~ 150°C（TJ）	-40°C ~ 150°C（TJ）	-	-
Installation type	surface mount	surface mount	surface mount	-	-
Package/casing	36-VFQFN Exposed Pad	48-LQFP Exposed Pad	48-LQFP Exposed Pad	-	-
Supplier device packaging	36-QFN-EP（6x6）	48-LQFP	48-LQFP	-	-

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