Datasheet > A3940LW

A3940LW

更新时间： 2024-09-18 19:55:55

品牌	Logo	应用领域
急速微 - ALLEGRO		驱动光电二极管接口集成电路驱动器
页数	文件大小	规格书
9页	388K
描述
Half Bridge Based MOSFET Driver, 0.8A, PDSO28, SOIC-28

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A3940LW 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	SOIC	包装说明：	SOIC-28
针数：	28	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.89	高边驱动器：	YES
接口集成电路类型：	HALF BRIDGE BASED MOSFET DRIVER	JESD-30 代码：	R-PDSO-G28
JESD-609代码：	e0	长度：	17.9 mm
功能数量：	1	端子数量：	28
最高工作温度：	135 °C	最低工作温度：	-40 °C
标称输出峰值电流：	0.8 A	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	240
认证状态：	Not Qualified	座面最大高度：	2.65 mm
最大供电电压：	40 V	最小供电电压：	7 V
表面贴装：	YES	温度等级：	AUTOMOTIVE
端子面层：	Tin/Lead (Sn/Pb)	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：	30	断开时间：	0.215 µs
接通时间：	0.215 µs	宽度：	7.5 mm
Base Number Matches：	1

A3940LW 数据手册

3940

ADVANCED DATASHEET – 4/9/03

(Subject to change without notice.)

H-BRIDGE POWER

MOSFET CONTROLLER

VDRAIN

LSS

28 VDSTH

27 IDEAD

26 LONG

25 RESET

24 PHASE

23 ENABLE

22 SR

The A3940 was designed specifically for driving high power DC

motors in automotive applications. The A3940 provides four high current gate

drive outputs capable of driving a wide range of power N-channel MOSFETs.

GLB

Bootstrap capacitors are utilized to provide the above battery supply

voltage required for N-channel FETs. An internal charge pump for the high-

side will allow for DC (100% duty cycle) operation of the bridge.

GHB

VIN

A3940LP, LW

PHASE and ENABLE input terminals are provided for use in

controlling the speed and direction of a DC motor with externally applied

PWM control signals.

VREG13

21 MODE

20 VREG5

19 OVSET

18 FAULT

17 GND

GHA 10

SA 11

Protection features include supply under-voltage and over-voltage,

programmable deadtime adjustment for cross-conduction protection, thermal

shutdown, and motor lead short-to-supply and short-to-ground protection.

GLA 12

VBB 13

CP2 14

16 CP1

The A3940 is available in 28L low profile (1mm) e-TSSOP

packaging (LP) which has an exposed pad solderable to PCB layers for

improved thermal and electrical performance. Also, it is available in the wide-

body, SOIC (LW) package.

15 VCP

ABSOLUTE MAXIMUM RATINGS

Load Supply Voltages

V_BB,Vdrain, CP1 …………. -0.6 V to +40 V

Logic Input/Output Voltage Range,

FEATURES

High Current Gate Drive for Driving Motor Lead Short-to-Ground

V_{in/out …………….}-0.3 V to +6.5 V

a Wide Range of N-ch MOSFET’s

Charge Pump to boost gate drive at

low battery input conditions.

Bootstrapped Gate Drive with

Charge Pump for 100% Duty Cycle

Synchronous Rectification

and Short-to- Supply

Protection.

LSS Voltage................................ -2 V to + 6.5 V

Pins SA/SB .................................... -2 V to +45 V

Pins GHA/GHB ................................ -2 to + 55 V

Pins CA/CB………….………….…-0.6 to + 55 V

Pins CP2/VCP/VIN ..……………–0.6 to + 52 V

Operating Temperature Range,

T_A............................ -40 °C to +135 °C

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

Storage Temperature Range,

Thermal Shutdown

Gate Drive for External

Reverse Battery MOSFET

Under-voltage Protection

Over-voltage Protection

-40 °C to 150 °C, Tj Operation

Fault Diagnostic Output

Adjustable Dead Time Cross-

Conduction Protection

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

------------------------------------------------------------

THERMAL IMPEDANCE, typical (T = +25 °C)*

A3940LP, θ _{JA …………………….}28 °C/W

A3940LW, θ _{JA ……………………}44 °C/W

* Measured with JEDEC standard “High K” 4 layer

board.

12 3 4 5 6 7...9

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与A3940LW相关器件

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A3941	ALLEGRO	获取价格	Automotive Full Bridge MOSFET Driver
A3941KLP-T	ALLEGRO	获取价格	Automotive Full Bridge MOSFET Driver
A3941KLPTR-T	ALLEGRO	获取价格	Automotive Full Bridge MOSFET Driver
A3942	ALLEGRO	获取价格	Quad High-Side Gate Driver
A3942KLG-T	ALLEGRO	获取价格	Buffer/Inverter Based Peripheral Driver, PDSO38, 1.20 MM HEIGHT, LEAD FREE, MO-153BD-1, TS
A3942KLGTR-T	ALLEGRO	获取价格	Buffer/Inverter Based Peripheral Driver, PDSO38, TSSOP-38
A3944	ALLEGRO	获取价格	Automotive, Low-Side FET Pre-Driver
A3944KLPTR-T	ALLEGRO	获取价格	Buffer/Inverter Based MOSFET Driver, PDSO28, LEAD FREE, TSSOP-28
A3946	ALLEGRO	获取价格	Half-Bridge Power MOSFET Controller
A3946KLB	ALLEGRO	获取价格	Half-Bridge Power MOSFET Controller

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