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A3921KLPTR-T PDF预览

A3921KLPTR-T

更新时间: 2024-11-07 18:00:59
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
21页 406K
描述
Full Bridge Based MOSFET Driver,

A3921KLPTR-T 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:HTSSOP,
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:1.77
Samacsys Description:IC FULL BRIDGE CTLR 28TSSOP高边驱动器:YES
接口集成电路类型:FULL BRIDGE BASED MOSFET DRIVERJESD-30 代码:R-PDSO-G28
JESD-609代码:e3长度:9.7 mm
湿度敏感等级:2功能数量:1
端子数量:28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:HTSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
座面最大高度:1.2 mm最大供电电压:50 V
最小供电电压:5.5 V标称供电电压:12 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:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40断开时间:0.15 µs
接通时间:0.15 µs宽度:4.4 mm
Base Number Matches:1

A3921KLPTR-T 数据手册

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A3921  
Automotive Full Bridge MOSFET Driver  
Features and Benefits  
Description  
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  
The A3921 is a full-bridge controller for use with external  
N-channel power MOSFETs and is specifically designed for  
automotiveapplicationswithhigh-powerinductiveloads,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 A3921  
to operate with a reduced gate drive, down to 5.5 V.  
Integrated 5 V regulator  
Diagnostics output  
Low current sleep mode  
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.  
Package: 28-pin TSSOP with exposed  
thermal pad (suffix LP)  
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.  
TheA3921 is supplied in a 28-pin TSSOPpower package with  
an exposed thermal pad (suffix LP). This package is lead (Pb)  
free, with 100% matte-tin leadframe plating.  
Not to scale  
Typical Application  
VBAT  
PWM  
A3921  
Direction  
Fault Flags  
3921-DS  

A3921KLPTR-T 替代型号

型号 品牌 替代类型 描述 数据表
DRV8876PWPR TI

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