A3946

更新时间： 2024-11-09 12:51:19

品牌	Logo	应用领域
急速微 - ALLEGRO		控制器
页数	文件大小	规格书
14页	328K
描述
Half-Bridge Power MOSFET Controller

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中文翻译

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A3946 数据手册

A3946

Half-Bridge Power MOSFET Controller

Features and Benefits

Description

▪ On-chip charge pump for 7 V minimum input

supply voltage

TheA3946isdesignedspecificallyforapplicationsthatrequire

high power unidirectional DC motors, three-phase brushless DC

motors, or other inductive loads. The A3946 provides two

high-current gate drive outputs that are capable of driving a

wide range of power N-channel MOSFETs. The high-side gate

driver switches an N-channel MOSFET that controls current to

the load, while the low-side gate driver switches an N-channel

MOSFET as a synchronous rectifier.

▪ High-current gate drive for driving a wide range of

N-channel MOSFETs

▪ Bootstrapped gate drive with top-off charge pump

for 100% duty cycle

▪ Overtemperature protection

▪ Undervoltage protection

▪ –40ºC to 135ºC ambient operation

Abootstrapcapacitorprovidestheabove-batterysupplyvoltage

required for N-channel MOSFETs. An internal top-off charge

pump for the high side allows DC (100% duty cycle) operation

of the half-bridge.

Package: 16-pin TSSOP with exposed

thermal pad (Suffix LP)

The A3946 is available in a power package: a 16-lead TSSOP

with exposed thermal pad (suffix LP). It is lead (Pb) free, with

100% matte tin plated leadframe (suffix -T).

Approximate Scale 1:1

Typical Application

V_BAT

VBB

BOOT

~FAULT

ECU

IN1

A3946

IN2

PAD

RESET

CP1

CP2

VREG

PGND

VREF

LGND

29319.150i

12 3 4 5 6 7...14

中文翻译

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与A3946相关器件

型号	品牌	获取价格	描述	数据表
A3946KLB	ALLEGRO	获取价格	Half-Bridge Power MOSFET Controller
A3946KLB-T	ALLEGRO	获取价格	Half-Bridge Power MOSFET Controller
A3946KLBTR	ALLEGRO	获取价格	Half-Bridge Power MOSFET Controller
A3946KLBTR-T	ALLEGRO	获取价格	Half-Bridge Power MOSFET Controller
A3946KLP	ALLEGRO	获取价格	Half-Bridge Power MOSFET Controller
A3946KLP-T	ALLEGRO	获取价格	Half-Bridge Power MOSFET Controller
A3946KLPTR	ALLEGRO	获取价格	Half-Bridge Power MOSFET Controller
A3946KLPTR-T	ALLEGRO	获取价格	Half-Bridge Power MOSFET Controller
A3948SB	ALLEGRO	获取价格	DMOS FULL-BRIDGE PWM MOTOR DRIVER
A3948SLB	ALLEGRO	获取价格	DMOS FULL-BRIDGE PWM MOTOR DRIVER