A4900KLQTR-T

• Product Introduction

The A4900 is a high-voltage, high-speed power IGBT or MOSFET driver that can provide three independent half-bridge channels for three-phase applications.

Bootstrap capacitors are used to provide the battery supply voltage described above required by N-channel MOSFETs or IGBTs used as high-current switches. The device enables direct control of all six gate drives in a three-phase bridge, allowing the motor to be driven by block rectification or sinusoidal excitation. Integrated cross-control and fixed no-induction time avoid power switch cross-conducting.

Integrated diagnostics provide indications of undervoltage, overtemperature, and power bridge failures. They can be configured to protect power switches in most short-circuit situations. Detailed diagnostics are available in the form of serial data word outputs.

The A4900 is available in a lead-free (Pb) 44-pin QSOP package with the suffix LQ and features a 100% matte tin-plated pin frame.

• High voltage three-phase gate drive
• 对 550 VDC 电源的浮置高侧门极驱动
• 可承受高电压转换速率
• 通过固定无感时间进行交叉传导保护
• 15 V 门极驱动电源电压
• 与 TTL 兼容的逻辑输入
• 欠压检测
• 具有集成故障屏蔽的过流检测
• 过温关机
• 匹配的传播延迟
• 详细的故障报告