A3958SLBTR

更新时间： 2024-01-19 10:39:29

品牌	Logo	应用领域
急速微 - ALLEGRO		驱动器电机
页数	文件大小	规格书
10页	380K
描述
DMOS Full-Bridge PWM Motor Driver

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数据手册

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A3958SLBTR 数据手册

A3958

DMOS Full-Bridge PWM Motor Driver

Selection Guide

Part Number

A3958SB-T*

Packing

24-pin DIP with exposed thermal tabs

Package

15 per Tube

A3958SLBTR-T

24-pin SOICW with internally fused pins

1000 per reel

Variant is in production but has been determined to be NOT FOR NEW DESIGN. This classification indicates

that sale of the variant is currently restricted to existing customer applications. The variant should not be

purchased for new design applications because obsolescence in the near future is probable. Samples are no

longer available. Status change: May 4, 2009.

Absolute Maximum Ratings

Characteristic

Symbol

V_BB

Notes

Rating

Units

Load Supply Voltage

Logic Supply Voltage

Input Voltage

V_DD

7.0

V_IN

–0.3 to V_CC+ 0.3

Sense Voltage

V_S

0.5

2.7

Reference Voltage

V_REF

Output current rating may be limited by duty cycle, ambient

temperature, and heat sinking. Under any set of conditions, do

not exceed the speciﬁed current rating or a junction tempera-

ture of 150°C.

Output Current

I_OUT

±2.0

B package, per SEMI G42-88 Specification, T_A= 25°C

LB package, per SEMI G42-88 Specification, T_A= 25°C

Range S

3.1

1.6

ºC

Package Power Dissipation

P_D

T_A

Operating Ambient Temperature

–20 to 85

Fault conditions that produce excessive junction temperature

will activate the device’s thermal shutdown circuitry. These

conditions can be tolerated but should be avoided.

Maximum Junction Temperature

Storage Temperature

T_J(max)

150

ºC

stg

–55 to 150

Thermal Characteristics

Characteristic

Symbol

Test Conditions*

Value

Units

B Package, single-layer PCB, 1 in². 2-oz. exposed copper

ºC/W

Package Thermal Resistance, Junction

to Ambient

R_θJA

LB Package, single-layer PCB, minimal exposed copper area

ºC/W

Package Thermal Resistance, Junction

to Tab

R_θJT

*Additional thermal information available on Allegro website.

= 6.0oC/W

QJT

SUFFIX 'B', R

= 40oC/W

QJA

SUFFIX 'LB', R

= 77oC/W

QJA

100

125

150

TEMPERATURE IN

Allegro MicroSystems, Inc.

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

123 4 5 6 7...10

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