Brushless DC Drivers

满足 ASIL 合规要求同时具备诊断与电流感测功能的车用三相 MOSFET 驱动器

A4911

Markets Served

A4911 专为需满足 ASIL 合规要求的关键汽车应用而设计。它具有集成的电流感测放大器、广泛的诊断功能与可编程栅极驱动，可实现稳健可靠的电机控制。

Product Details

Product Details

Top Features

ISO26262 开发和 ASIL-D 认证
150°C 环境温度
最低 165 °C 过热关机功能
符合 Q100 0 级标准
强大的门极驱动设计，允许高达 -18V 的负瞬变
扩展诊断
- 门极驱动监控器
- 过压检测器
- 逻辑电平、相状态输出
- 开放负载检测
可编程门极驱动输出
转换率限制的可调驱动强度
- 门极驱动限制的可调输出电压
可编程感应放大器
- 可调整增益
- 可调整偏移
- 不需使用外部组件
- 低偏移漂移
SPI 读取和奇偶校验位

Target Application

Part Number Specifications and Availability

View Full Specification Details

A4911KEVTR-J-1

supply_voltage_min_v: 5.5
supply_voltage_max_v: 50
architecture: Gate Driver
control_interface: SPI
rds_on: 20
commutation: Universal
motor_positioning_method: External
sleep_current: 10
current_sense_amplifiers: 3
temperature: -40°C to 125°C, -40°C to 150°C
package: 48-Pin QFN
market: Automotive
typical_load_current_a: 10-25

A4911KJPTR-T

supply_voltage_min_v: -
supply_voltage_max_v: -
architecture: -
control_interface: -
rds_on: -
commutation: -
motor_positioning_method: -
sleep_current: -
current_sense_amplifiers: -
temperature: -
package: -
market: -
typical_load_current_a: -

A4911KJPTR-T-1

supply_voltage_min_v: 5.5
supply_voltage_max_v: 50
architecture: Gate Driver
control_interface: SPI
rds_on: 20
commutation: Universal
motor_positioning_method: External
sleep_current: 10
current_sense_amplifiers: 3
temperature: -40°C to 125°C, -40°C to 150°C
package: 48-Pin LQFP
market: Automotive
typical_load_current_a: 10-25

设计工具

A4911

Software Portal

Technical Documentation

Mosfet Slew-Rate Control with an Allegro Smart Gate Driver

Application Note

Mosfet Slew-Rate Control with an Allegro Smart Gate Driver

Advanced Negative Voltage Transient Test for Gate Drivers in Automotive Applications

Application Note

Advanced Negative Voltage Transient Test for Gate Drivers in Automotive Applications

Estimating Maximum MOSFET Switching Frequency

Application Note

Estimating Maximum MOSFET Switching Frequency

Reverse Battery Protection Scheme for Automotive Applications

Technical Article

Reverse Battery Protection Scheme for Automotive Applications