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| 型号： | A4935KJPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/25页 |
| 文件大小： | 0K |
| 描述： | IC MOSFET DVR AUTO 3PH 48-LQFP |
| 标准包装： | 1 |
| 配置： | 3 相桥 |
| 输入类型： | PWM |
| 延迟时间： | 90ns |
| 配置数： | 1 |
| 输出数： | 3 |
| 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： | 48-LQFP 裸露焊盘 |
| 供应商设备封装： | 48-LQFP 裸露焊盘（7x7） |
| 包装： | 标准包装 |
| 产品目录页面： | 1141 (CN2011-ZH PDF) |
| 其它名称： | 620-1300-6 |
A4935
Automotive 3-Phase MOSFET Driver
Features and Benefits
? High current 3-phase gate drive for N-channel MOSFETs
? Cross-conduction protection with adjustable dead time
? Top-off charge pump for 100% PWM
? Charge pump for low supply voltage operation
? Uncommitted current sense amplifier
? 5.5 to 50 V supply voltage range
? Compatible with 3.3 V and 5 V logic
? Extensive diagnostic outputs
? Low-current sleep mode
Package: 48-pin LQFP with exposed
thermal pad (suffix JP)
Description
The A4935 is a 3-phase controller for use with N-channel
external power MOSFETs and is specifically designed for
automotive applications.
A unique charge pump regulator provides full (>10 V) gate
drive for battery voltages down to 7 V and allows the A4935
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.
Full control over all six power FETs in the 3-phase bridge is
provided, allowing motors to be driven with block commutation
or sinusoidal excitation. The power FETs are protected from
shoot-through by integrated crossover control and resistor-
adjustable dead time.
Bridge current can be measured using an integrated current
sense amplifier. This is an uncommitted differential amplifier
with a below-ground common mode range allowing it to be
used in low-side current sense applications. Gain and offset
are defined by external resistors.
Continued on the next page…
Not to scale
Typical Application
VBAT
A8450
Regulator
VBAT
DSP
or
Micro-
controller
Control
Diagnostics
A4935
3-Phase
BLDC
Motor
Current Sense
4935-DS, Rev. 5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A4936 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:3-Phase Brushless DC Motor Pre-Driver |
| A4936MET-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:3-Phase Brushless DC Motor Pre-Driver |
| A4936METTR-T | 功能描述:IC DC MOTOR PREDRIVER 3PH 32QFN 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 |
| 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. |
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