A2918SWH

更新时间： 2024-11-25 22:21:07

品牌	Logo	应用领域
急速微 - ALLEGRO		驱动器
页数	文件大小	规格书
8页	191K
描述
DUAL FULL-BRIDGE PWM MOTOR DRIVER

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中文翻译

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数据手册
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A2918SWH 数据手册

2918

DUAL FULL-BRIDGE

PWM MOTOR DRIVER

The A2918SWH and A2918SWV motor drivers are designed

to drive both windings of a bipolar stepper motor or bidirectionally

control two dc motors. All bridges are capable of sustaining 45 V and

include internal pulse-width modulation (PWM) control of the output

current to 1.5 A.

OUT

For PWM current control, the maximum output current is

determined by the user’s selection of a reference voltage and sensing

resistor. A PHASE input to each bridge determines load current

direction. Active low ENABLE inputs control the four drivers in

each bridge.

LOAD SPLY

SENSE

ENABLE

PHASE

GROUND

The bridges include both ground clamp and flyback diodes for

protection against inductive transients. Internally generated delays

prevent cross-over currents when switching current direction.

Special power-up sequencing is not required. Thermal protection

circuitry disables the outputs if the chip temperature exceeds safe

operating limits.

LOGIC SPLY

PHASE

ENABLE

REFERENCE

SENSE

The A2918SWH/V are supplied in an 18-lead power-tab package

with staggered lead forming. The tab is internally insulated from the

device and requires no external isolation. The A2918SWH/V are

available for operation from -40°C to +85°C. To order, change the

suffix from 'S–' to 'E–'. These devices are also available on special

order for operation to +125°C.

OUT

Dwg. PP-051

ABSOLUTE MAXIMUM RATINGS

at T_J≤ +150°C

FEATURES

Motor Supply Voltage, V_BB. . . . . . . . . 45 V

1.5 A Continuous Output Current

Output Current, I_OUT(t_w≤20 µs) . .

1.75 A

1.5 A

I 45 V Output Sustaining Voltage

I Internal PWM Current Control

I Low Output Saturation Voltage

I Internal Clamp Diodes

(Continuous) . . . . . . . . . . . . . .

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

Logic Input Voltage Range,

V_IN. . . . . . . . . . . . . . . -0.3 V to +7.0 V

Output Emitter Voltage, V_E. . . . . . . . . 1.5 V

I Internal Thermal Shutdown Circuitry

I Similar to Dual PBL3718 or Dual PBL3770

Package Power Dissipation,

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

Operating Temperature Range,

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

Storage Temperature Range,

T_S. . . . . . . . . . . . . . . -40°C to +150°C

Output current rating may be limited by duty cycle,

ambient temperature, and heat sinking. Under

any set of conditions, do not exceed the specified

peak current rating or a junction temperature of

+150°C.

Always order by complete part number:

Part Number Application

A2918SWH

A2918SWV

For Horizontal Mount

For Vertical Mount

12 3 4 5 6 7 8

中文翻译

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A2918SWH 替代型号

型号	品牌	替代类型	描述	数据表
UDN2917EB	ALLEGRO	功能相似	DUAL FULL-BRIDGE PWM MOTOR DRIVER
A2918SWV	ALLEGRO	功能相似	DUAL FULL-BRIDGE PWM MOTOR DRIVER

与A2918SWH相关器件

型号	品牌	获取价格	描述	数据表
A2918SWV	ALLEGRO	获取价格	DUAL FULL-BRIDGE PWM MOTOR DRIVER
A2919EB	ETC	获取价格	Industrial Control IC
A2919ELB	ETC	获取价格	Industrial Control IC
A2919ELB-T	ALLEGRO	获取价格	暂无描述
A2919ELBTR-T	ALLEGRO	获取价格	Stepper Motor Controller, 1A, PDSO24, LEAD FREE, BATWING, SOIC-24
A2919SB	ALLEGRO	获取价格	DUAL FULL-BRIDGE PWM MOTOR DRIVER
A2919SLB	ALLEGRO	获取价格	DUAL FULL-BRIDGE PWM MOTOR DRIVER
A2919SLB-T	ALLEGRO	获取价格	DUAL FULL-BRIDGE PWM MOTOR DRIVER
A2919SLBTR	ALLEGRO	获取价格	Stepper Motor Controller, 1A, BIPolar, PDSO24, BATWING, SOIC-24
A2919SLBTR-T	ALLEGRO	获取价格	DUAL FULL-BRIDGE PWM MOTOR DRIVER

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