Datasheet > A4910

A4910

更新时间： 2024-01-01 02:29:52

品牌	Logo	应用领域
急速微 - ALLEGRO		驱动器
页数	文件大小	规格书
36页	556K
描述
Automotive 3-Phase MOSFET Driver

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技术参数
数据手册

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A4910 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	LQFP-48
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
风险等级：	1.68	其他特性：	ALSO REQUIRED VBB SUPPLY 7 TO 50V
模拟集成电路 - 其他类型：	BRUSHLESS DC MOTOR CONTROLLER	JESD-30 代码：	S-PQFP-G48
JESD-609代码：	e3	长度：	7 mm
湿度敏感等级：	2	功能数量：	1
端子数量：	48	最高工作温度：	150 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HLFQFP	封装等效代码：	QFP48,.35SQ,20
封装形状：	SQUARE	封装形式：	FLATPACK, HEAT SINK/SLUG, LOW PROFILE, FINE PITCH
峰值回流温度（摄氏度）：	260	电源：	5,7/50 V
认证状态：	Not Qualified	座面最大高度：	1.6 mm
子类别：	Motion Control Electronics	最大供电电流 (Isup)：	14 mA
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	3 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
温度等级：	AUTOMOTIVE	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	40
宽度：	7 mm	Base Number Matches：	1

A4910 数据手册

A4910

Automotive 3-Phase MOSFET Driver

Description

Features and Benefits

The A4910 is a three-phase controller for use with N-channel

external power MOSFETs and is specifically designed for

automotive applications.

• High current 3-phase gate drive for N-channel MOSFETs

• 3-phase current sense amplifiers

• SPI compatible serial or direct parallel control

• Cross conduction protection

• Programmable dead time

• Top-off charge pump for 100% PWM

• Uncommitted buffer amplifier

A unique charge pump regulator provides full (>10 V) gate

drive for battery voltages down to 7 V, and allows the A4910

to operate with a reduced gate drive down to 5.5 V.

A bootstrap capacitor is used to provide the above battery

supply voltage required for N-channel MOSFETs.An internal

charge pump for the high-side drive allows DC (100% duty

cycle) operation.

• 5.5 to 50 V supply voltage range

• CMOS inputs, 3.3 V to 5 V logic supply

• Extensive diagnostics output

• Low-current sleep mode

Full control over all six power MOSFETs in the 3-phase

bridge is provided, allowing motors to be driven with block

commutationorsinusoidalexcitation.ThepowerMOSFETsare

protected from shoot-through by integrated crossover control

and programmable dead time.

Package: 48-pin LQFP with exposed

thermal pad (suffix JP)

Continued on the next page…

Applications

• Electronic power steering (EPS, EHPS, EAS)

• Hydraulic pumps

• Engine cooling fan

• Gearbox actuator

Not to scale

Typical Application Drawing

VBAT

Regulator

VBAT

Control

DSP

Micro-

controller

3-Phase

BLDC

Motor

A4910

Diagnostics

Current Sense

A4910-DS

12 3 4 5 6 7...36

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