BD8256EFV-M Datasheet, PDF (1/50 Pages) Rohm – Built-in Serial Peripheral Interface

Datasheet
System Motor Driver Series for CD・DVD・BD Player
9ch System Motor Driver
For Car AV
BD8256EFV-M
General Description
BD8256EFV-M is a 9ch motor driver developed for
driving coil actuator (3ch), sled motor (2ch), a loading
motor, and a three-phase motor for spindle. This chip
has a built-in 2ch LVDS (Low Voltage Differential
Signaling) output for spherical aberration. This can drive
the motor and coil of blu-ray drive.
It has a built-in Serial Peripheral Interface (SPI) with a
max clock frequency of 35MHz, for interfacing with the
Micro-controller.
Features
 Built-in Serial Peripheral Interface(SPI)
 High efficiency at 180° PWM for spindle driver
 Built-in 2-channel stepping motor driver for sled
 Built-in actuator over current protection circuit
 Built-in loading driver short-circuit protection
 AEC-Q100 Qualified
Applications
 Car navigation
 Car AV
Typical Application Circuit
Key Specifications
 Ron(Spindle):
 Ron(Loading):
 Power Supply Voltage Range:
1.0Ω(Typ)
1.5Ω(Typ)
4.5V to 10.5V
Package
HTSSOP-B54
W(Typ) × D(Typ) × H(Max)
18.50mm × 9.50mm × 1.00mm
HTSSOP-B54
Figure 1. Typical Application Circuit
○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
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