Datasheet > 信号电路 > 运动控制电子器件> A3964SLBTR-T

A3964SLBTR-T

更新时间： 2024-12-01 03:16:35

品牌	Logo	应用领域
急速微 - ALLEGRO		驱动器运动控制电子器件信号电路光电二极管电动机控制
页数	文件大小	规格书
10页	204K
描述
DUAL FULL-BRIDGE PWM MOTOR DRIVER

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技术参数
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A3964SLBTR-T 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：	LEAD FREE, MS-013AC, SOIC-20
针数：	20	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.81	Is Samacsys：	N
其他特性：	ALSO REQUIRES A 5V TO 30V SUPPLY	模拟集成电路 - 其他类型：	STEPPER MOTOR CONTROLLER
JESD-30 代码：	R-PDSO-G20	JESD-609代码：	e3
长度：	12.8 mm	湿度敏感等级：	6
功能数量：	2	端子数量：	20
最高工作温度：	85 °C	最低工作温度：	-20 °C
最大输出电流：	1 A	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装等效代码：	SOP20,.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 V
认证状态：	Not Qualified	座面最大高度：	2.65 mm
子类别：	Motion Control Electronics	最大供电电流 (Isup)：	85 mA
最大供电电压 (Vsup)：	5.25 V	最小供电电压 (Vsup)：	4.75 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
技术：	BIPOLAR	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

A3964SLBTR-T 数据手册

3964

DUAL FULL-BRIDGE PWM MOTOR DRIVER

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

stepper motors, the A3964SB and A3964SLB are capable of continuous

output currents to ±800 mA and operating voltages to 30 V. Internal fixed

off-time PWM current-control circuitry can be used to regulate the maximum

load current to a desired value. An internal precision voltage reference is

provided to improve motor peak-current control accuracy. The peak load

A3964SLB

OUT

20 OUT

19 SENSE

SENSE

OUT

current limit is set by the user’s selection of an external resistor divider and

current-sensing resistors.

18 OUT

LOAD

LOGIC

SUPPLY

The fixed off-time pulse duration is set by user-selected external RC

timing networks. The capacitor in the RC timing network also determines a

user-selectable blanking window that prevents false triggering of the PWM

current control circuitry during switching transitions. This eliminates the need

for two external RC filter networks on the current-sensing comparator inputs.

16 GROUND

GROUND

REF(IN)

REF(OUT)

For each bridge the PHASE input controls load current polarity by

selecting the appropriate source and sink driver pair. For each bridge the

ENABLE input, when held high, disables the output drivers. Special power-

up sequencing is not required. Internal circuit protection includes thermal

shutdown with hysteresis, transient-suppression diodes, and crossover-current

protection.

PHASE

11 ENABLE

ENABLE

Dwg. PP-047-1

ABSOLUTE MAXIMUM RATINGS

The A3964SB is supplied in a 24-pin plastic DIP with copper heat sink

tabs; A3964SLB is supplied in a 20-lead plastic SOIC with copper heat sink

tabs, and is available in a lead (Pb) free version with 100% matte tin

leadframe plating. The power tabs are at ground potential and need no

electrical isolation.

Load Supply Voltage, V_BB. . . . . . . . . 33 V

Output Current, I_OUT(10 µs) . . . . . . ±1.0 A*

(continuous). . . . . . . . . . . . . ±800 mA*

Logic Supply Voltage, V_CC. . . . . . . . . 7.0 V

Logic Input Voltage Range,

FEATURES

V_IN. . . . . . . . . . . -0.3 V to V_CC+ 0.3 V

Sense Voltage, V_S. . . . . . . . . . . . . . . 1.0 V

■ ±800 mA Continuous Output Current Rating

■ 30 V Output Voltage Rating

Reference Output Current,

I_REF(OUT). . . . . . . . . . . . . . . . . . 1.0 mA

■ Internal PWM Current Control, Saturated Sink Drivers

■ Internally Generated, Precision 2.5 V Reference

■ Internal Transient-Suppression Diodes

■ Internal Thermal-Shutdown Circuitry

Package Power Dissipation,

P_D. . . . . . . . . . . . . . . . . . . . See Graph

Operating Temperature Range,

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

Junction Temperature, T_J. . . . . . +150½°†

■ Crossover-Current Protection, UVLO Protection

Storage Temperature Range,

Part Number

Pb-free*

Package

Packing

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

A3964SLB-T

A3964SLBTR-T

Yes

20-Lead SOIC

20-Lead SOIC 1000 per reel

37 per tube

* 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

^*Pb-based variants are being phased out of the product line. The variants cited in this

footnote are in production but have been determined to be LAST TIME BUY. This

classification indicates that sale of this device is currently restricted to existing

customer applications. The variants should not be purchased for new design

applications because obsolescence in the near future is probable. Samples are no

longer available. Status change: October 31, 2006. Deadline for receipt fo LAST TIME

BUY orders: April 27, 2007. These variants include: A3964SB, A3964SLB, and

A3964SLBTR.

or a junction temperature of 150°C.

† Fault conditions that produce excessive junction

temperature will activate the device’s thermal shutdown

circuitry. These conditions can be tolerated but should

be avoided.

12 3 4 5 6 7...10

中文翻译

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A3964SLBTR-T 替代型号

型号	品牌	替代类型	描述	数据表
A3964SLBTR	ALLEGRO	完全替代	Stepper Motor Controller, 1A, BIPolar, PDSO20, PLASTIC, SOIC-20
A3964SLB-T	ALLEGRO	完全替代	DUAL FULL-BRIDGE PWM MOTOR DRIVER
A3964SLB	ALLEGRO	完全替代	DUAL FULL-BRIDGE PWM MOTOR DRIVER

与A3964SLBTR-T相关器件

型号	品牌	获取价格	描述	数据表
A3965	ALLEGRO	获取价格	DMOS Dual Full-Bridge PWM Motor Driver
A3965LB	ALLEGRO	获取价格	AC Motor Controller, 4.5A, BCDMOS, PDSO24, PLASTIC, SOIC-24
A3965S	ETC	获取价格	DMOS Dual Full-Bridge PWM Motor Driver
A3965SLB	ALLEGRO	获取价格	Stepper Motor Controller, 0.5A, NMOS, PDSO24, BATWING, PLASTIC, SOIC-24
A3966	ALLEGRO	获取价格	DUAL FULL-BRIDGE PWM MOTOR DRIVER
A3966SA	ALLEGRO	获取价格	DUAL FULL-BRIDGE PWM MOTOR DRIVER
A3966SLB	ALLEGRO	获取价格	DUAL FULL-BRIDGE PWM MOTOR DRIVER
A3966SLB-T	ALLEGRO	获取价格	DUAL FULL-BRIDGE PWM MOTOR DRIVER
A3966SLBTR	ALLEGRO	获取价格	Stepper Motor Controller, 0.75A, BIPolar, PDSO16, PLASTIC, SOIC-16
A3966SLBTR-T	ALLEGRO	获取价格	DUAL FULL-BRIDGE PWM MOTOR DRIVER

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