BD6757KN中文资料7ch System Lens Drivers for Digital Still Cameras / Single-lens Reflex Cameras数据手册ROHM规格书

描述 Description

●Description
BD6757KN and BD6889GU motor drivers provide 6 Full-ON Drive H-bridge channels and 1 Linear Constant-Current Drive H-bridge channel. Stepping motors can be used for the auto focus, zoom, and iris, making it possible to configure a sophisticated, high precision lens drive system. ROHM’s motor drivers are both compact, multifunctional, and enable advanced features such as lens barrier and anti shock.●

特性 Features

 1)  Subminiature grid array package: 5.0 5.0 1.2mm3 (BD6889GU)
 2)  DMOS output allowing a range power supply: 2.0V to 8.0V (BD6757KN)
 3)  Low ON-Resistance Power MOS output:
Full-ON Drive block with 1.3ΩTyp. and Linear Constant-Current Drive block with 0.9ΩTyp.(BD6757KN, BD6889GU)
 4)  Built-in two digital NPN transistor circuits for photo-interrupter waveform shaping:
  Input-dividing type with output pull-up resistance (BD6757KN)
 5)  Built-in four digital NPN transistor circuits for photo-interrupter waveform shaping:
  Input-dividing type with output pull-up resistance (BD6889GU)
 6)  Built-in four digital PNP transistor circuits for photo-interrupter waveform shaping:
  Input-dividing type with output pull-down resistance (BD6889GU)
 7)  Built-in voltage-regulator circuit for photo-interrupter (BD6889GU)
 8)  Built-in two-step output current setting switch for the Linear Constant-Current Drive block (BD6757KN)
 9)  0.9V±2% high-precision reference voltage output
 10)  Constant-Current Drive block featuresphase compensation capacitor-free design
11) Built-in ±3% high-precision Linear Constant-Current Driver
 12)  Built-in charge pump circuit for the DMOS gate voltage drive(BD6757KN)
 13)  UVLO (Under Voltage Lockout Protection) function
 14)  Built-in TSD (Thermal Shut Down) circuit
 15)  Standby current consumption: 0μA (Typ.)

简介

BD6757KN属于集成电路（IC）的电机驱动器控制器。由制造生产的BD6757KN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。