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Rohm Semiconductor Electronic Components Datasheet

BD8255MUV-M Datasheet

6ch System Motor Driver

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Datasheet
System Motor Driver Series for CDDVDBD Player
6ch System Motor Driver
For Car AV
BD8255MUV-M
General Description
BD8255MUV-M is a 6ch motor driver developed for
driving coil actuator (2ch), sled motor (2ch), a loading
motor, and a three-phase motor for spindle. This can
drive the motor and coil of CD/DVD 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 loading driver short-circuit protection
Key Specifications
Ron(Spindle):
Ron(Loading):
Package
VQFN48SV7070
1.0(Typ)
1.0(Typ)
W(Typ) × D(Typ) × H(Max)
7.00mm × 7.00mm × 1.00mm
Applications
Car navigation
Car AV
Typical Application Circuit
VQFN48SV7070
PREGND
SPGND
SLGND
ACTGND
BD8255MUV-M
PREVCC
MM
Figure 1. Typical Application Circuit
Product structureSilicon monolithic integrated circuit
.www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product is not designed protection against radioactive rays
1/43
TSZ02201-0G1G0BK00210-1-2
18.Apr.2014 Rev.003


Rohm Semiconductor Electronic Components Datasheet

BD8255MUV-M Datasheet

6ch System Motor Driver

No Preview Available !

BD8255MUV-M
Datasheet
Pin Configuration (TOP VIEW)
Block Diagram
Regulator
VREG
SHV
SDI
SCLK
SLV
MUTEB
SLRNF1
SLRNF2
BHLD
SPRNF
HU+
HU-
HV+
HV-
HW+
HW-
HALL_VC
DAC
DAC
DAC
DAC
Current
Detector
Current
Detector
DAC
LIMIT
LIMIT
OSC
Current
Detector
DAC
OSC
Hall Amp /
Reverse Protect
ERROUT
SDO
FCO+
FCO-
TKO+
TKO-
LDO+
LDO-
SLO1+
SLO1-
SLO2+
SLO2-
SPCNF
U_OUT
V_OUT
W_OUT
FG
Figure 2. Pin configuration
Figure 3. Block diagram
Pin Description
No. Pin Name
Function
1 PREVCC Pre driver power supply(Note 1)
No. Pin Name
Function
25 TEST2 TEST Pin (use with GND short)
2 HU+ Hall amp. U positive input
26 ERROUT Serial data error output
3 HU- Hall amp. U negative input
27 SDO Serial data output
4 HV+ Hall amp. V positive input
28 SDI Serial data input
5 HV- Hall amp. V negative input
29 SCLK Serial clock input
6 HW+ Hall amp. W positive input
30 SLV Serial slave input
7 HW- Hall amp. W negative input
31 VREG Inside power supply for SPI logic
8 HALL_VC Hall bias
32 SHV Power supply for SDO output
9 FG FG output
33 PREGND Pre block ground
10 SPCNF Spindle driver loop filter
34 MUTEB Mute input
11 BHLD Spindle current bottom hold
35 TEST3 TEST Pin (use open)
12 SPRNF Spindle power supply and current sense 36 TEST4 TEST Pin (use open)
13 W_OUT Spindle driver W output
37 PREVCC Pre driver power supply(Note 1)
14 V_OUT Spindle driver V output
38 N.C. -
15 U_OUT Spindle driver U output
39 ACTGND Actuator and loading power ground
16 SPGND Spindle power ground
40 LDO- Loading driver negative output
17 SLGND Sled power ground
41 LDO+ Loading driver positive output
18 SLO1+ Sled driver 1 positive output
42 N.C. -
19 SLO1- Sled driver 1 negative output
43 TKO- Tracking driver negative output
20 SLRNF1 Sled 1 power supply and current sense 44 TKO+ Tracking driver positive output
21 SLO2+ Sled driver 2 positive output
45 FCO- Focus driver negative output
22 SLO2- Sled driver 2 negative output
46 FCO+ Focus driver positive output
23 SLRNF2 Sled 2 power supply and current sense 47
N.C. -
24 TEST1 TEST Pin (use with GND short)
48 AVM Actuator power supply
(Note1) Use with Pin1 and Pin37 are shorted.
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/43
TSZ02201-0G1G0BK00210-1-2
18.Apr.2014 Rev.003


Part Number BD8255MUV-M
Description 6ch System Motor Driver
Maker Rohm
Total Page 30 Pages
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