APEK4915MLP-01-T

• Product Introduction

The A4915 enables pulse-width modulation (PWM) current control of a three-phase brushless DC motor. The A4915 is capable of providing high-current gate drivers for six all-N-channel power MOSFETs. An internal charge pump ensures gate drive from a supply as low as 7 V and provides a finite gate drive down to 5 V. Bootstrap capacitors are used to generate a higher supply voltage than the high-end MOSFET supply voltage, which is required for N-channel MOSFETs.

An internal synchronous rectification control circuit reduces the power consumption of external MOSFETs during pulse-width modulation (PWM) operation. Internal circuit protection includes latching overtemperature shutdown, no-inductive time protection, and undervoltage lockout. No special power-up sequencing is required.

The A4915 is available in a 28-pin TSSOP package with an exposed thermal panel (suffix LP) and a 28-contact 5×5 mm QFN package with an exposed thermal panel (suffix ET). These are available in a lead-free (PD) package and have a 100% matte tin plating on the pin frame.

• 5 至 50 V 电源电压
• 具有故障输出的锁存 TSD
• 提供六个 N 通道大电流 MOSFET
• 内部控制的同步整流
• 速度电压输入可实现对全桥的内部 PWM 占空比控制
• 中心对齐的 PWM
• 内部 UVLO 和交叉电流保护
• 霍尔开关输入
• 可调无感时间保护
• 面向电池供电应用的低功耗休眠模式