BD8256EFV-ME2 ROHM

ERROUT PRTLIM PRTFT PRTT PRTOUT FCTLRNF TKRNF FCTLO1+ FCTLCDET FCTLO1- TKCDET FCTLO2+ SLRNF1 FCTLO2- SLRNF2 TKO+ BHLD TKO- SPRNF LDO+ LDO- 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 SAO1+ SAO1- SAO2+ SAO2- Datasheet System Motor Driver Series for CDDVDBD Player 9ch System Motor Driver For Car AV BD8256EFV-M General Description Key Specifications BD8256EFV-M is a 9ch motor driver developed for Ron(Spindle): 1.0(Typ) driving coil actuator (3ch), sled motor (2ch), a loading Ron(Loading): 1.5(Typ) motor, and a three-phase motor for spindle. This chip Power Supply Voltage Range: 4.5V to 10.5V 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 Package W(Typ) D(Typ) H(Max) Micro-controller. HTSSOP-B54 18.50mm 9.50mm 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 actuator over current protection circuit Built-in loading driver short-circuit protection AEC-Q100 Qualified Applications Car navigation Car AV HTSSOP-B54 Typical Application Circuit VCC VCC PREVCC PREVCC PREGND PREVCC SPGND VCC BD8256EFV-M SLGND SHV ACTGND M M SHV SHV SHV Figure 1. Typical Application Circuit Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays . www.rohm.com TSZ02201-0G1G0BK00030-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/49 TSZ2211114001 4.Apr.2016 Rev.004 BD8256EFV-M Pin Configuration (TOP VIEW) Block Diagram HU+ 1 54 PREVCC Regulator VREG FCTLRNF PRTLIM HU- 2 53 TKRNF TKRNF Over Current PRTFT FCTLCDET Protect PRTT HV+ 3 52 FCTLRNF TKCDET PRTOUT ERROUT HV- 4 51 FCTLCDET SDO HW+ 5 50 TKCDET SHV FCTLO1+ DAC HW- 6 49 SAO1+ SDI FCTLO1- SCLK HALL VC 7 48 SAO1- FCTLO2+ DAC SLV SPCNF 8 47 SAO2+ FCTLO2- BHLD 9 46 SAO2- MUTEB TKO+ DAC SPRNF 10 45 FCTLO1+ TKO- FG 11 44 FCTLO1- LDO+ W OUT 12 43 FCTLO2+ DAC LDO- V OUT 13 42 FCTLO2- U OUT 14 41 TKO+ SAO1+ SAO1- SPGND 15 40 TKO- SAO2+ SAO2- SLGND 16 39 ACTGND DAC SLO1+ SLO1+ 17 38 LDO+ LIMIT Current SLO1- SLRNF1 SLO1- 18 37 LDO- Detector OSC Current SLRNF2 SLO2+ Detector SLRNF1 19 36 PRTOUT LIMIT SLO2- SLO2+ 20 35 MUTEB DAC SLO2- 21 34 PRTLIM BHLD SPCNF Current SLRNF2 22 33 VCC SPRNF Detector U OUT ERROUT 23 32 PRTFT DAC OSC V OUT SDO 24 31 PRTT HU+ W OUT HU- SDI 25 30 PREGND HV+ Hall Amp / HV- Reverse Protect FG SCLK 26 29 SHV HW+ HW- SLV 27 28 VREG HALL VC Figure 2. Pin configuration Figure 3. Block diagram Pin Description Pin Pin Pin Name Function Pin Name Function No. No. 1 HU+ Hall amp. U positive input 28 VREG Inside power supply for SPI logic 2 HU- Hall amp. U negative input 29 SHV Power supply for SDO output 3 HV+ Hall amp. V positive input 30 PREGND Pre block ground 4 HV- Hall amp. V negative input 31 PRTT Protect time setting for tracking 5 HW+ Hall amp. W positive input 32 PRTFT Protect time setting for focus and tilt 6 HW- Hall amp. W negative input 33 VCC Power supply for pre driver and loading 7 HALL VC Hall bias 34 PRTLIM Limit setting for actuator protect 8 SPCNF Spindle driver loop filter 35 MUTEB Mute input 9 BHLD Spindle current bottom hold 36 PRTOUT Protect output 10 SPRNF Spindle power supply and current sense 37 LDO- Loading driver negative output 11 FG FG output 38 LDO+ Loading driver positive output 12 W OUT Spindle driver W output 39 ACTGND Actuator and loading power ground 13 V OUT Spindle driver V output 40 TKO- Tracking driver negative output 14 U OUT Spindle driver U output 41 TKO+ Tracking driver positive output 15 SPGND Spindle power ground 42 FCTLO2- Focus tilt driver 2 negative output 16 SLGND Sled power ground 43 FCTLO2+ Focus tilt driver 2 positive output 17 SLO1+ Sled driver 1 positive output 44 FCTLO1- Focus tilt driver 1 negative output 18 SLO1- Sled driver 1 negative output 45 FCTLO1+ Focus tilt driver 1 positive output 19 SLRNF1 Sled 1 power supply and current sense 46 SAO2- Sphere aberration 2 negative output 20 SLO2+ Sled driver 2 positive output 47 SAO2+ Sphere aberration 2 positive output 21 SLO2- Sled driver 2 negative output 48 SAO1- Sphere aberration 1 negative output 22 SLRNF2 Sled 2 power supply and current sense 49 SAO1+ Sphere aberration 1 positive output 23 ERROUT Serial data error output 50 TKCDET Current detect for tracking drive 24 SDO Serial data output 51 FCTLCDET Current detect for focus tilt drive 25 SDI Serial data input 52 FCTLRNF Focus tilt power supply and current sense 26 SCLK Serial clock input 53 TKRNF Tracking power supply and current sense 27 SLV Serial slave input 54 PREVCC Pre driver power supply www.rohm.com TSZ02201-0G1G0BK00030-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/49 TSZ2211115001 4.Apr.2016 Rev.004 SPI PREGND SPGND PREVCC SLGND VCC ACTGND Duty FF FF Control PRE PRE Level Level Level Level Matrix LOGIC LOGIC Shift Shift Shift Shift