●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.

●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.)