BD7763EFV-E2 ROHM

System LSIs for Blu-ray Drive System Motor Driver IC for Half Height Drive(Sensor less) BD7763EFV General Description BD7763EFV are 9ch system motor driver ICs, Applications developed for the spindle motor, actuator coil, For Blu-ray drive stepping motor, SA stepping motor and the loading Features motor drive of the Blu-ray drive. Since spindle The hall sensor is not needed by 3-phase sensor less driver adopts sensor less drive system and the hall drive system. sensor (3 pieces) of the motor position detection is The spindle motor driver achieves stability high speed not needed, it is suitable for making of flexible start by ROHM s own energizing method. cable conserve wiring and the reductions of Spindle, stepping and SA stepping achieve high external parts. The actuator, loading driver, the efficiency drive by PWM control driver. The actuator is spindle, stepping, and SA stepping use power able to reduce power consumption by using PWM MOSFET to reduce power consumption. drive system. The loading adopts forward/reverse-rotation drive Package(s) system. HTSSOP-B54 18.5mm x 9.5mm x 1.0mm ON/OFF of loading and other channels, brake mode of spindle driver, and stand-by mode are selectable by the two control terminals. Built-in thermal-shut down circuit. Improved heat radiation efficiency utilizing lm-type HTSSOP package with good thermal conductivity. Typical Application Circuit(s) R2 R1 DVCC 12V 5V 12V CURR. LIMIT PRE PRE PRE PRE Logic Logic Logic Logic Logic BEMF FF FF DETECTER LEVEL SHIFT PRE PRE PRE Logic Logic Logic PRE Logic PULL FC1 FC2 STBY CTL CTL BRAKE CONTROL 5V 12V 5V 12V or 5V 1000pF 3.3V Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays. www.rohm.com TSZ02201-0P1P0B800260-1-2 2015 ROHM Co., Ltd. All rights reserved. 1/15 19.NOV.2012 Rev.001 TSZ2211114001 1 54 DVCC SAIN2 2 DETECTER 53 SADET SAIN1 LEVEL 3 52 SHIFT VCC SLIN2 LEVEL 4 51 SHIFT VC SLIN1 5 50 AVM SAVM DETECTER 6 49 TKIN SLDET SW 10k 7 48 FC2IN SLDETOUT 8 47 OSC FC1IN SAO1+ 9 NF AMP AMP 46 STM FCO1+ OSC SAO1- 10 45 OSC FCO1- SAO2+ 11 AMP 44 NF AMP FCO2- SAO2- OSC 12 43 CURR.FEED FCO2+ SL/SAGND 13 42 NF AMP TKO- SLO1+ OSC OSC 14 41 CURR. TKO+ STM SLO1- LIMIT 15 40 AGND SLO2+ 16 OSC 39 CURR.FEED SLO2- LDO- 17 38 SLVM LDO+ SW 10k 18 37 SADETOUT LDVM OSC LEVEL 19 36 SHIFT CURR. LDIN FEED SPGND 20 35 SPIN U 21 34 PULL BIAS V 22 33 T.S.D PROTECT PULL CTL W 23 32 CTL2 COM RDET 24 31 SPVM CTL1 25 30 10k GND FG 26 29 C COM MTR R 27 28 SPLIM C OUT MDatasheetDatasheet BD7763EFV Pin Description(s) No. Symbol Description No. Symbol Description Adjustable resistor connection 1 DVcc PWM block control power supply 28 SPLIM for spindle driver current limit 2 SADET SA motor detection signal control input 29 MTR R motor start pattern adjustment terminal 3 Vcc Pre block power supply 30 GND Pre block ground 4 VC Reference voltage input 31 SPVM Spindle driver power supply 5 AVM Actuator driver block power supply 32 COM Motor coil center point input 6 TKIN Tracking driver input 33 W Spindle driver output W 7 FC2IN Focus 2 driver input 34 V Spindle driver output V 8 FC1IN Focus 1 driver input 35 U Spindle driver output U 9 FCO1+ Focus 1 driver positive output 36 SPGND Spindle driver power ground 10 FCO1- Focus 1 driver negative output 37 SADETOUT SA motor detection signal output 11 FCO2- Focus 2 driver negative output 38 SLVM Sled motor driver power supply 12 FCO2+ Focus 2 driver positive output 39 SLO2- Sled driver 2 negative output 13 TKO- Tracking driver negative output 40 SLO2+ Sled driver 2 positive output 14 TKO+ Tracking driver positive output 41 SLO1- Sled driver 1 negative output 15 AGND Actuator/Loading driver power ground 42 SLO1+ Sled driver 1 positive output Sled/SA driver block 16 LDO- Loading driver negative output 43 SL/SAGND pre and power ground 17 LDO+ Loading driver positive output 44 SAO2- SA driver 2 negative output 18 LDVM Loading driver block power supply 45 SAO2+ SA driver 2 positive output 19 LDIN Loading driver input 46 SAO1- SA driver 1 negative output 20 SPIN Spindle driver input 47 SAO1+ SA driver 1 positive output 21 PULL BIAS Pick-up pull current control terminal 48 SLDETOUT Sled motor detection signal output 22 PULL CTL Pick-up pull control terminal 49 SLDET Sled motor detection signal control input 23 CTL2 Driver logic control 2 input 50 SAVM SA driver power block power supply 24 CTL1 Driver logic control 1 input 51 SLIN1 Sled driver 1 input 25 FG Frequency generator output 52 SLIN2 Sled driver 2 input Smooth capacitor connection terminal 26 C COM 53 SAIN1 SA driver 1 input (com side) Smooth capacitor connection terminal 27 C OUT 54 SAIN2 SA driver 2 input (output side) *Positive/negative of the output terminals is determined in reference to those of the input terminals. www.rohm.com TSZ02201-0P1P0B800260-1-2 2015 ROHM Co., Ltd. All rights reserved. 2/15 19.NOV.2012 Rev.001 TSZ2211115001