Datasheet > 3971

3971

更新时间： 2024-01-10 21:47:35

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	142K
描述
DUAL DMOS FULL-BRIDGE DRIVER

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

3971 数据手册

3971

ADVANCE INFORMATION

(Subject to change without notice)

May 2, 2000

DUAL DMOS

FULL-BRIDGE DRIVER

Designed to interface between external PWM control logic and

inductive loads such as relays, solenoids, dc motors, or stepper motors,

each full bridge can operate with output currents to 2.5 A and operating

voltages to 50 V.

LOGIC

SUPPLY

VDD

CONNECTION

LOGIC

GROUND

23 PWM

Low r_DS(on)DMOS output drivers provide low power dissipation

during PWM operation. Internal charge pump circuitry is used to create

a boosted voltage to fully enhance the high-side DMOS switches.

OUT1A

LOAD

OUT2A

LOAD

SUPPLY

BB1

VBB2

19 GROUND

GROUND

Three TTL-compatible logic-input terminals per bridge allow flex-

ibility in configuring PWM control.

GROUND

SENSE

Internal circuit protection includes thermal shutdown with hysteresis,

and crossover-current protection. Special power -up sequencing is not

required.

16 OUT2B

OUT1B

S21

11 10

VCP

PWM

The A3971SLB is supplied in a 24-lead plastic SOIC with a copper

batwing tab. The power tab is at ground potential and needs no electri-

cal isolation.

13 CP2

CP1

CHARGE PUMP

Dwg. PP-069-2

ABSOLUTE MAXIMUM RATINGS

at T = +25°C

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

Output Current, I_OUT

Transient (<500 ns) ................... 5 A

Logic Supply Voltage,

FEATURES

2.5 A Load Current Capability per Bridge

V_DD............................................ 7.0 V

Sense Voltage, V_SENSE...................... 0.5 V

Logic Input Voltage Range,

I Parallel Outputs for 5 A Load-Current Capability

I Low r_DS(on)Outputs

V_IN.................. -0.3 V to V_DD+ 0.3 V

High-Side Gate Voltage ........... V_BB+ 8 V

Package Power Dissipation,

P_D............................................. 2.2 W

Operating Temperature Range,

Typically 325 mΩ source, 175 mΩ sink

I Synchronous Rectification via Control Logic

I Internal Undervoltage Monitor

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

Junction Temperature, T_J............. +150°C

Storage Temperature Range,

I Crossover-Current Protection

I Source Connections for External Current Sensing

I Thermal Shutdown Circuitry

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

Output duty cycle, ambient temperature, and

heat sinking may limit current rating. Under

any set of conditions, do not exceed the

specified current rating or a junction tempera-

ture of 150 °C.

Always order by complete part number: A3971SLB .

12 3 4 5 6 7 8

中文翻译

下载PDF

与3971相关器件

型号	品牌	获取价格	描述	数据表
3971100000	LITTELFUSE	获取价格	SUBMINIATURE FUSES
39711000000	LITTELFUSE	获取价格	功能与特色: 无铅/符合RoHS标准用于电信设备的防浪涌保护
3971100044	LITTELFUSE	获取价格	SUBMINIATURE FUSES
39711000440	LITTELFUSE	获取价格	功能与特色: 无铅/符合RoHS标准用于电信设备的防浪涌保护
3971125000	LITTELFUSE	获取价格	SUBMINIATURE FUSES
39711250000	LITTELFUSE	获取价格	Electric Fuse, Time Lag Blow, 1.25A, 125VAC, 50A (IR), Through Hole, TE5, HALOGEN FREE AND
3971125044	LITTELFUSE	获取价格	SUBMINIATURE FUSES
39711250440	LITTELFUSE	获取价格	Electric Fuse, Time Lag Blow, 1.25A, 125VAC, 50A (IR), Through Hole, TE5, HALOGEN FREE AND
3971150000	LITTELFUSE	获取价格	SUBMINIATURE FUSES
39711500000	LITTELFUSE	获取价格	功能与特色: 无铅/符合RoHS标准用于电信设备的防浪涌保护

与3971相关文章

共享储能电站：数据驱动与政策引领下的黄金机遇
2024-06-26

11
US1M数据手册解读：产品特性、替换型号推荐
2024-06-26

4
解析BAV99LT1G手册：参数分析、替换型号推荐
2024-06-26

4
解读BSS138PW数据手册：产品特性、电气参数及替换型号推荐
2024-06-26

6

产品中心

服务支持

精选活动

关于我们

帮助中心

3971

3971 数据手册

与3971相关器件

与3971相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

3971

3971 数据手册

与3971相关器件

与3971相关文章

您还可以找

您在本页遇到什么问题？