BD8255MUV-ME2 ROHM

ERROUT AVM FCO+ SLRNF1 FCO- SLRNF2 TKO+ BHLD TKO- SPRNF LDO+ LDO- SHV SLO1+ SDI SLO1- SDO SCLK SLO2+ SLV MUTEB SLO2- U OUT V OUT HU+ HALL W OUT HU- HV+ FG HALL HV- HW+ SPCNF HALL HW- VREG HALL VC Datasheet System Motor Driver Series for CDDVDBD Player 6ch System Motor Driver For Car AV BD8255MUV-M General Description Key Specifications BD8255MUV-M is a 6ch motor driver developed for driving coil actuator (2ch), sled motor (2ch), a loading Ron(Spindle): 1.0(Typ) motor, and a three-phase motor for spindle. This can Ron(Loading): 1.0(Typ) 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 Package W(Typ) D(Typ) H(Max) Micro-controller. VQFN48SV7070 7.00mm 7.00mm 1.00mm 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 Applications Car navigation Car AV VQFN48SV7070 Typical Application Circuit PREGND SPGND PREVCC BD8255MUV-M SLGND ACTGND M M Figure 1. Typical Application Circuit Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays . www.rohm.com TSZ02201-0G1G0BK00210-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/41 TSZ2211114001 4.Apr.2016 Rev.004 Not Recommended for New DesignsBD8255MUV-M Pin Configuration (TOP VIEW) Block Diagram VREG Regulator ERROUT SDO SHV FCO+ DAC SDI FCO- 36 35 34 33 32 31 30 29 28 27 26 25 SCLK TKO+ SLV DAC 37 24 PREVCC TEST1 TKO- 38 23 N.C. SLRNF2 MUTEB 39 22 LDO+ ACTGND SLO2- DAC 40 21 LDO- SLO2+ LDO- LDO+ 41 20 SLRNF1 DAC 42 19 SLO1- N.C. SLO1+ BD8255MUV-M LIMIT 43 18 TKO- SLO1+ Current SLO1- SLRNF1 Detector OSC 44 17 TKO+ SLGND Current SLRNF2 SLO2+ Detector 45 16 FCO- SPGND LIMIT SLO2- 46 15 FCO+ U OUT DAC N.C. 47 14 V OUT BHLD SPCNF 48 13 AVM W OUT Current SPRNF Detector U OUT 1 2 3 4 5 6 7 8 9 10 11 12 DAC OSC V OUT HU+ W OUT HU- HV+ Hall Amp / FG HV- Reverse Protect HW+ HW- HALL VC Figure 2. Pin configuration Figure 3. Block diagram Pin Description No. Pin Name Function No. Pin Name Function (Note 1) 1 PREVCC Pre driver power supply 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) (Note 1) 13 W OUT Spindle driver W output 37 PREVCC Pre driver power supply 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 TSZ02201-0G1G0BK00210-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/41 TSZ2211115001 4.Apr.2016 Rev.004 Not Recommended for New Designs PREVCC TEST4 HU+ TEST3 HU- MUTEB HV+ PREGND HV- SHV HW+ VREG HW- SLV HALL VC SCLK FG SDI SPCNF SDO BHLD ERROUT SPRNF TEST2 SPI PREGND PREVCC SPGND SLGND AVM ACTGND Duty FF FF Control PRE PRE Level Level Level Matrix LOGIC LOGIC Shift Shift Shift