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A3942
Quad High-Side Gate Driver
for Automotive Applications
Features and Benefits
? Drives four N-channel high-side MOSFETS
? Charge pump for 100% duty cycle operation
? Serial and discrete inputs
? SPI port for control and fault diagnostics
? 4.5 to 60 V input voltage range
? Sleep function for minimum power drain
? Thin profile 38-lead TSSOP with internally fused leads for
enhanced thermal dissipation
? Lead (Pb) free
? Device protection features:
? Short-to-ground detection (latched)
? Short-to-battery protection (latched)
? Open load detection (latched)
? V DD undervoltage lockout
? V CP undervoltage lockout
? Thermal monitor
Package: 38 pin TSSOP (suffix LG)
Description
The A3942 is a highly-integrated gate driver IC that can drive
up to four N-Channel MOSFETs in a high-side configuration.
The device is designed to withstand the harsh environmental
conditions and high reliability standards of automotive
applications.
Serial Peripheral Interface (SPI) compatibility makes the device
easily integrated into existing applications. The MOSFETs in
such applications are typically used to drive gasoline or diesel
engine management actuators, transmission actuators, body
control actuators and other general-purpose automotive or
industrial loads. In particular, the A3942 is suited for driving
glow plugs, valves, solenoids, and other inductive loads in
engine management and transmission systems.
The device is available in a 38-lead thin (1.20 mm maximum
overall height) TSSOP package with six pins that are fused
internally to provide enhanced thermal dissipation (package
LG). It is lead (Pb) free with 100% matte tin leadframe
plating.
Approximate Scale 1:1
Typical Application
V DD
VDD
CP1 CP2
CP3 CP4
VCP
VBB
V BAT
IREF
VREG
D1
FAULTZ
SDO
SDI
A3942
G1
S1
D2
System
Control
Logic
CSZ
SCLK
RESETZ
ENB
IN1
IN2
IN3
G2
S2
D3
G3
S3
D4
IN4
G4
GND GND GND GND GND GND S4
3942-DS, Rev. 5
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相关代理商/技术参数
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A3946 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Half-Bridge Power MOSFET Controller
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A3946KLB-T 功能描述:IC MOSFET CONTROLLER 16-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 标准包装:1 系列:- 应用:直流电机驱动器，步进电机驱动器 评估套件:- 输出数:1 或 2 电流 - 输出:750mA 电压 - 负载:10 V ~ 40 V 电源电压:4.5 V ~ 5.5 V 工作温度:-20°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-BFSOP（0.295"，7.50mm 宽） 供应商设备封装:24-SOP 包装:Digi-Reel® 其它名称:MTS62C19A-HS105DKR
A3946KLBTR 功能描述:IC CTRLR MOSFET 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 标准包装:1 系列:- 应用:直流电机驱动器，步进电机驱动器 评估套件:- 输出数:1 或 2 电流 - 输出:750mA 电压 - 负载:10 V ~ 40 V 电源电压:4.5 V ~ 5.5 V 工作温度:-20°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-BFSOP（0.295"，7.50mm 宽） 供应商设备封装:24-SOP 包装:Digi-Reel® 其它名称:MTS62C19A-HS105DKR