A4950ELJTR-T Просмотр технического описания (PDF) - Allegro MicroSystems

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Компоненты Описание

производитель

A4950ELJTR-T

Full-Bridge DMOS PWM Motor Driver

Allegro MicroSystems 

A4950

Full-Bridge DMOS PWM Motor Driver

Selection Guide

Part Number

A4950ELJTR-T

A4950KLJTR-T

Packing

3000 pieces per 13-in. reel

3000 pieces per 13-in. reel

Ambient Operating Temperature, TA

–40°C to 85°C

–40°C to 125°C

Absolute Maximum Ratings

Characteristic

Load Supply Voltage

Logic Input Voltage Range

VREF Input Voltage Range

Sense Voltage (LSS pin)

Motor Outputs Voltage

Output Current

Transient Output Current

Operating Temperature Range

Maximum Junction Temperature

Storage Temperature Range

Symbol

VBB

VIN

VREF

VS

VOUT

IOUT

iOUT

TA

TJ(max)

Tstg

Notes

Duty cycle = 100%

TW < 500 ns

Temperature Range E

Temperature Range K

Rating

Unit

40

V

–0.3 to 6

V

–0.3 to 6

V

–0.5 to 0.5

V

–2 to 42

V

3.5

A

6

A

–40 to 85

°C

–40 to 125

°C

150

°C

–55 to 150

°C

Thermal Characteristics may require derating at maximum conditions, see application information

Characteristic

Symbol

Test Conditions*

Package Thermal Resistance

On 2-layer PCB with 0.8 in2. exposed 2-oz. copper each side

RθJA

On 4-layer PCB based on JEDEC standard

*Additional thermal information available on the Allegro website.

Value Unit

62 ºC/W

35 ºC/W

Pin-out Diagram

GND 1

IN2 2

IN1 3

VREF 4

8 OUT2

7 LSS

PAD

6 OUT1

5 VBB

Terminal List Table

Number

Name

Function

1

GND Ground

2

IN2

Logic input 2

3

IN1

Logic input 1

4

VREF Analog input

5

VBB

Load supply voltage

6

OUT1 DMOS full bridge output 1

7

LSS

Power return – sense resistor connection

8

OUT2 DMOS full bridge output 2

–

PAD

Exposed pad for enhanced thermal dissipation

Allegro MicroSystems, Inc.

2

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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