DESCRIPTION

The Si9987 is an integrated, buffered H-bridge with TTL compatible inputs and the capability of delivering a continuous 1 A at VDD = 5 V (room temperature) at switching rates up to 500 kHz. Internal logic prevents the upper and lower outputs of either half-bridge from being turned on simultaneously. Unique input codes allow both outputs to be forced low (for braking) or forced to a high impedance level.

The Si9987 is available in an 8-pin SOIC package, specified to operate over a voltage range of 3.8 V to 13.2 V, and the commercial temperature range of 0 °C to 70 °C (C suffix) and - 40 °C to 85 °C (D suffix). The Si9987 is available in lead free.

FEATURES

• 1 A H-bridge

• 500 kHz switching rate

• Shoot-through limited

• TTL compatible inputs

• 3.8 V to 13.2 V operating range

• Surface mount packaging1 A H-bridge

APPLICATIONS

• VCM driver

• Brushed motor driver

• Stepper motor driver

• Power converter

• Optical disk drives

• Power supplies

• High performance servo

SI9987CY-T1属于集成电路（IC） > 电机驱动器，控制器。威世科技半导体制造生产的SI9987CY-T1电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。