DR702QAQFN32

DR702Q是针对汽车应用的智能单H 桥驱动器，可同时驱动四个外部N 沟道MOSFET 以驱动双向有刷直流电机。 DR702Q 支持硬件配置接口，支持PH/EN、独立H-Bridge 或标准PWM接口，可实现正转、反转、慢刹(slow decay)、滑行(coast)等多种电机控制。此外，集成电荷泵架构支持100%占空比输出，也可用于驱动外部电池反接保护开关。DR702Q还可以通过独立半桥模式以经济高效的方式顺序控制多个直流电机。DR702Q集成了电流采样放大器，并包含使用固定关断时间PWM 电流斩波来调节绕组电流的功能。通过集成智能栅极驱动器模块，DR702Q器件可以保护外部FET，而无需额外增加任何外部栅极组件，如电阻器和齐纳二极管等。DR702Q器件结合了保护功能和栅极驱动可配置性，以简化设计并将电机系统的智能提升到一个新的水平。例如，可配置死区时间优化可避免直通、有源/无源下拉，并防止DV/DT 栅极转动；可编程转换率控制在降低EMI 方面提供了灵活性。DR702Q还集成了各种保护功能—UVLO、CPUV、OCP、TSD、GDF、看门狗定时器等。DR702Q器件采用QFN-32 封装。

The DR702Q is an intelligent single H-bridge driver designed for automotive applications, capable of driving four external N-channel MOSFETs simultaneously to power bidirectional brushed DC motors. The DR702Q supports a hardware configuration interface and offers PH/EN, independent H-Bridge, or standard PWM interfaces to achieve various motor controls such as forward rotation, reverse rotation, slow decay, and coasting. Additionally, the integrated charge pump architecture supports 100% duty cycle output and can also be used to drive external battery reverse protection switches. The DR702Q can also control multiple DC motors in an economical and efficient manner through its independent half-bridge mode.

The DR702Q integrates a current-sense amplifier and includes a function for regulating winding current using fixed off-time PWM current chopping. Through its integrated intelligent gate driver module, the DR702Q device can protect external FETs without the need for additional external gate components such as resistors and Zener diodes. The DR702Q combines protection features and gate drive configurability to simplify design and elevate the intelligence of motor systems to a new level. For example, configurable dead-time optimization prevents shoot-through, provides active/passive pull-down, and protects against dV/dt gate turn-on; programmable slew rate control offers flexibility in reducing EMI. The DR702Q also integrates various protection functions—UVLO, CPUV, OCP, TSD, GDF, watchdog timer, etc. The DR702Q device is available in a QFN-32 package.