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| 型号： | A3941KLPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/21页 |
| 文件大小： | 0K |
| 描述： | IC MOSFET FULL BRDG AUTO 28TSSOP |
| 标准包装： | 1 |
| 配置： | 半桥 |
| 输入类型： | PWM |
| 延迟时间： | 90ns |
| 配置数： | 1 |
| 输出数： | 4 |
| 电源电压： | 5.5 V ~ 50 V |
| 工作温度： | -40°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 28-TSSOP 裸露焊盘 |
| 包装： | 标准包装 |
| 产品目录页面： | 1140 (CN2011-ZH PDF) |
| 其它名称： | 620-1236-6 |
A3941
Automotive Full Bridge MOSFET Driver
Features and Benefits
? High current gate drive for N-channel MOSFET full bridge
? High-side or low-side PWM switching
? Charge pump for low supply voltage operation
? Top-off charge pump for 100% PWM
? Cross-conduction protection with adjustable dead time
? 5.5 to 50 V supply voltage range
? Integrated 5 V regulator
? Diagnostics output
? Low current sleep mode
Package: 28-pin TSSOP with exposed
thermal pad (suffix LP)
Not to scale
Description
The A3941 is a full-bridge controller for use with external
N-channel power MOSFETs and is specifically designed for
automotive applications with high-power inductive loads, such
as brush DC motors.
A unique charge pump regulator provides full (>10 V) gate
drive for battery voltages down to 7 V and allows the A3941
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.
The full bridge can be driven in fast or slow decay modes using
diode or synchronous rectification. In the slow decay mode,
current recirculation can be through the high-side or the low-
side FETs. The power FETs are protected from shoot-through
by resistor adjustable dead time.
Integrated diagnostics provide indication of undervoltage,
overtemperature, and power bridge faults, and can be
configured to protect the power MOSFETs under most short
circuit conditions.
The A3941 is supplied in a 28-pin TSSOP power package with
an exposed thermal pad (suffix LP). This package is lead (Pb)
free, with 100% matte-tin leadframe plating.
Typical Application
VBAT
PWM
3941-DS, Rev. 5
Direction
Fault Flags
A3941
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| A3985SLDTR-T | IC MOSFET DRVR PROG DUAL 38TSSOP |
| A4933KJPTR-T | IC PREDRIVER MOSFET 3PH 48LQFP |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A3942 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Quad High-Side Gate Driver |
| A3942KLG-T | 制造商:Allegro MicroSystems LLC 功能描述:IC,Quad MOSFET Driver,TSSOP,38PIN,PLASTIC |
| A3942KLGTR-T | 功能描述:IC GATE DVR QUAD HISIDE 38-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 外部开关 系列:- 标准包装:5 系列:- 配置:低端 输入类型:非反相 延迟时间:600ns 电流 - 峰:12A 配置数:1 输出数:1 高端电压 - 最大（自引导启动）:- 电源电压:14.2 V ~ 15.8 V 工作温度:-20°C ~ 60°C 安装类型:通孔 封装/外壳:21-SIP 模块 供应商设备封装:模块 包装:散装 配用:BG2A-NF-ND - KIT DEV BOARD FOR IGBT 其它名称:835-1063 |
| A39438-000 | 制造商:TE Connectivity 功能描述:3012-11-230510-CS2324 |
| A3944 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Automotive, Low-Side FET Pre-Driver |
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