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A3958SLB-TTR

更新时间： 2024-02-06 07:07:51

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
12页	177K
描述
Brushless DC Motor Controller, 2A, NMOS, PDSO24, LEAD FREE, BATWING, PLASTIC, SOIC-24

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A3958SLB-TTR 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	SOIC	包装说明：	SOP, SOP24,.4
针数：	24	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.83	模拟集成电路 - 其他类型：	BRUSHLESS DC MOTOR CONTROLLER
JESD-30 代码：	R-PDSO-G24	JESD-609代码：	e3
长度：	15.4 mm	功能数量：	1
端子数量：	24	最高工作温度：	85 °C
最低工作温度：	-20 °C	最大输出电流：	2 A
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装等效代码：	SOP24,.4	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
电源：	5,20/50 V	认证状态：	Not Qualified
座面最大高度：	2.65 mm	子类别：	Motion Control Electronics
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	4.5 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
技术：	NMOS	温度等级：	OTHER
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	7.5 mm
Base Number Matches：	1

A3958SLB-TTR 数据手册

3958

DMOS FULL-BRIDGE PWM

MOTOR DRIVER

Designed for pulse-width modulated (PWM) current control of dc

motors, the A3958SB and A3958SLB are capable of continuous output

currents to 2 A and operating voltages to 50 V. Internal fixed off-

time PWM current-control timing circuitry can be programmed via a

serial interface to operate in slow, fast, and mixed current-decay

modes.

A3958SLB

VREG

CP2

CP1

RANGE

CONNECTION

PHASE and ENABLE input terminals are provided for use in

controlling the speed and direction of a dc motor with externally

applied PWM-control signals. The ENABLE input can be

programmed via the serial port to PWM the bridge in fast or slow

current decay. Internal synchronous rectification control circuitry is

provided to reduce power dissipation during PWM operation.

PHASE

OSC

21 OUT

BB 20 LOAD SUPPLY

GROUND

SENSE

GROUND

LOGIC SUPPLY

ENABLE

DATA

OUT

Internal circuit protection includes thermal shutdown with

hysteresis, and crossover-current protection. Special power-up

sequencing is not required.

CONNECTION

MODE

CLOCK

REF

The A3958SB/SLB is supplied in a choice of two power

packages, a 24-pin plastic DIP with a copper batwing tab (package

suffix ‘B’), and a 24-lead plastic SOIC with a copper batwing tab

(package suffix ‘LB’). In both cases, the power tab is at ground

potential and needs no electrical isolation.

STROBE

Dwg. PP-069

Note that the A3958SLB(SOIC) and A3958SB

(DIP) do not share a common terminal

assignment.

FEATURES

ABSOLUTE MAXIMUM RATINGS

2 A, 50 V Continuous Output Rating

Load Supply Voltage, V_BB.................. 50 V

Output Current, I_OUT........................ 2.0 A

Logic Supply Voltage, V_DD................ 7.0 V

Input Voltage, V_IN.... -0.3 V to V_DD+ 0.3 V

Sense Voltage, V_S............................ 0.5 V

Reference Voltage, V_REF.................. 2.7 V

Package Power Dissipation (T_A= 25°C), P_D

A3958SB ................................. 3.1 W*

A3958SLB ............................... 2.2 W*

Operating Temperature Range,

I Low r_DS(on)Outputs (270 mΩ, Typical)

I Programmable Mixed, Fast, and Slow Current-Decay Modes

I Serial Interface Controls Chip Functions

I Synchronous Rectification for Low Power Dissipation

I Internal UVLO and Thermal-Shutdown Circuitry

I Crossover-Current Protection

T_A............................... -20°C to +85°C

Junction Temperature,

T_J............................................ +150°C

Storage Temperature Range,

T_S............................. -55°C to +150°C

Always order by complete part number:

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 temperature of 150°C.

Part Number

A3958SB

Package

R_θJA

R_θJT

24-pin batwing DIP

24-lead batwing SOIC

40°C/W

56°C/W

6°C/W

* Per SEMI G42-88 Specification.

A3958SLB

12 3 4 5 6 7...12

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与A3958SLB-TTR相关器件

型号	品牌	描述	获取价格	数据表
A3959	ALLEGRO	DMOS FULL-BRIDGE PWM MOTOR DRIVER	获取价格
A3959SB	ALLEGRO	DMOS FULL-BRIDGE PWM MOTOR DRIVER	获取价格
A3959SB-T	ALLEGRO	DMOS FULL-BRIDGE PWM MOTOR DRIVER	获取价格
A3959SLB	ALLEGRO	DMOS FULL-BRIDGE PWM MOTOR DRIVER	获取价格
A3959SLB-T	ALLEGRO	DMOS FULL-BRIDGE PWM MOTOR DRIVER	获取价格
A3959SLBTR-T	ALLEGRO	Stepper Motor Controller, 6A, NMOS, PDSO24, LEAD FREE, MS-013AD, SOIC-24	获取价格

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