参数资料
型号: A4936METTR-T
厂商: Allegro Microsystems Inc
文件页数: 1/9页
文件大小: 0K
描述: IC DC MOTOR PREDRIVER 3PH 32QFN
标准包装: 1
应用: DC 电机驱动器,无刷(BLDC),3 相
输出数: 1
工作温度: -20°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-QFN 裸露焊盘(5x5)
包装: 标准包装
其它名称: 620-1347-6
A4936
3-Phase Brushless DC Motor Pre-Driver
Features and Benefits
? Drives 6 N-channel MOSFETs
? Synchronous rectification for low power dissipation
? Internal UVLO and thermal shutdown circuitry
? Hall element inputs
? PWM current limiting
? Dead time protection
? FG outputs
? Standby mode
? Lock detect protection
? Overvoltage protection
Package: 32-contact QFN (suffix ET)
Description
The A4936 is a complete 3-phase brushless DC motor pre-driver,
supplying up to 28 V output for direct, high-current gate drive
of an all N-channel power MOSFET 3-phase bridge. The device
has three Hall-element inputs, a sequencer for commutation
control, fixed off-time pulse width modulation (PWM) current
control, and locked-rotor detection.
Output current is scaled by the capability of the external
MOSFETs. Locked rotor detection delay is set by an external
capacitor on the CLD terminal. The PWM, DIR, and BRAKE
and STOP inputs can be used to control motor speed, position,
and torque. Motor speed can be determined using the FG output
from an FG coil amplifier and comparator.
The external MOSFETS can be PWMed using an external
signal on the PWM input, or using the internal PWM current
regulator. In either case, the A4936 synchronous rectification
feature reduces power dissipation by turning-on the appropriate
MOSFETs during current decay.
The Hall elements can be inexpensive types, when used with
noise filtering to prevent false commutation signals. The
A4936 provides a regulated 7.5 V supply to power the three
Hall elements.
Not to scale
Continued on the next page…
Typical Application Diagram
V+
A4936-DS, Rev. 1
System
Control
Logic
A4936
BLDC
Motor
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相关代理商/技术参数
参数描述
A4937KLPTR-A-T 功能描述:IC MOSFET DRIVER 3PH TSSOP 制造商:allegro microsystems, llc 系列:- 包装:剪切带(CT) 零件状态:在售 驱动配置:半桥 通道类型:3 相 驱动器数:6 栅极类型:N 沟道 MOSFET 电压 - 电源:5.5 V ~ 50 V 逻辑电压?- VIL,VIH:- 电流 - 峰值输出(灌入,拉出):- 输入类型:非反相 上升/下降时间(典型值):- 工作温度:-40°C ~ 175°C(TJ) 安装类型:表面贴装 封装/外壳:28-SOIC(0.173",4.40mm 宽)裸露焊盘 供应商器件封装:28-TSSOP-EP 标准包装:1
A4938 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:The A4938 is a complete 3-phase brushless DC (BLDC) motor pre-driver, supplying direct, high-current gate drive of an all N-channel power MOSFET 3-phase bridge.
A4938EETTR-T 功能描述:IC DC MOTOR PREDRIVER 3PH 28-QFN 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
A4939KLPTR-5-T 功能描述:Motor Driver Power MOSFET Parallel 28-TSSOP-EP 制造商:allegro microsystems, llc 系列:- 包装:带卷(TR) 零件状态:有效 电机类型 - 步进:- 电机类型 - AC,DC:无刷 DC(BLDC) 功能:控制器 - 换向,方向管理 输出配置:前置驱动器 - 半桥(3) 接口:并联 技术:功率 MOSFET 步进分辨率:- 应用:汽车级 电流 - 输出:- 电压 - 电源:5.5 V ~ 50 V 电压 - 负载:- 工作温度:-40°C ~ 150°C(TA) 安装类型:表面贴装 封装/外壳:28-SOIC(0.173",4.40mm 宽)裸露焊盘 供应商器件封装:28-TSSOP-EP 标准包装:4,000
A4940 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Automotive Full Bridge MOSFET Driver