5ch Motor Driver MM1646XH MITSUMI 5ch Motor Driver Monolithic IC MM1646XH Outline This IC is a motor driver IC for DVD players with 5ch built in (for spindle, sled, focus, tracking, loading). Features 1. 5ch motor driver in one package. 2. Small package ensures heat loss of 2.2W. 3. Built-in short brake (spindle). 4. Built-in thermal shutdown function. Package HSOP-28D Applications 1. for DVD players 2. for DVD minicomponent Pin Assignment 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 HSOP-28D (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PS VBIAS VIN1 VIN2+ VIN2VO2 PreVCC1 PowerVCC1 PowerVCC2 PowerGND1 OUT2OUT2+ OUT1OUT1+ 15 16 17 18 19 20 21 22 23 24 25 26 27 28 OUT4+ OUT4OUT3+ OUT3OUTL+ OUTLPowerGND2 PreVCC2 VIN3 VIN4 PreGND VINLOVINLO+ SB 5ch Motor Driver MM1646XH MITSUMI Block Diagram Spindle Motor Short Brake Power Save 1 28 7.2k Control circuit 2 7.8k 27 7.2k 3 26 7.8k Pre GND 4 25 5 24 6 23 Pre VCC2 Pre VCC1 7 22 10k 10k 35k 35k 10k 8 Power VCC1 9 Power VCC2 25k 10 Power GND1 11 X2 12 X2 13 X2 14 X2 Power GND2 10k TSD 21 15k 20 19 Sled Driver Level Shift Spindle Driver Level Shift X2 18 X2 17 Actuator Focus Level Shift Actuator Tracking Level Shift X2 16 X2 15 TSD: Thermal shutdown 5ch Motor Driver MM1646XH MITSUMI Pin Description Pin no. Pin name Function 1 PS Input for power save control Internal equivalent circuit diagram 1 39k 39k 2 VBIAS Input for reference voltage 2 3 23 24 VIN1 VIN3 VIN4 Input for focus driver Input for tracking driver Input for spindle driver BIAS 10k 3 23 24 4 VIN2+ 5 VIN2- Non inverted input for OP-amp Inverting input for OP-amp Pre VCC1 4 6 VO2 5 Output of OP-amp Pre VCC1 6 10k 7 PreVCC1 8 Power VCC1 9 Power VCC2 10 21 Power GND2 Power GND2 VCC for pre - drive block and power block of sled VCC for power block of spindle VCC for power block of actuator GND for power block GND for power block 5ch Motor Driver MM1646XH MITSUMI Pin no. Pin name Function 22 25 11 12 PreVCC2 PreGND OUT2OUT2+ VCC for pre - drive block GND for pre - drive block Inverted output of sled Non inverted output of sled Internal equivalent circuit diagram Power VCC1 Pre VCC1 6.5k 6.5k 11 12 Pre GND1 Power GND1 13 14 OUT1OUT1+ Inverted output of focus Non inverted output of focus Power VCC2 Pre VCC1 6.5k 6.5k 13 14 Pre GND1 Power GND2 15 OUT4+ 16 OUT4- Non inverted output of tracking Inverted output of tracking Power VCC2 Pre VCC1 6.5k 6.5k 15 16 Pre GND1 Power GND2 5ch Motor Driver MM1646XH MITSUMI Pin no. Pin name Function 17 OUT3+ 18 OUT3- Non inverted output of spindle Inverted output of spindle Internal equivalent circuit diagram Pre VCC1 6.5k 6.5k 17 18 Pre GND1 Power GND1 19 OUTL+ 20 OUTL- Non inverted output of loading Inverted output of loading Pre VCC2 19 20 Pre GND2 Power GND1 26 27 VINLOVINLO+ Non inverted input of loading Inverted input of loading 26 27 7.2k 7.8k 28 SB Short brake input 28 7.2k 14k 5ch Motor Driver MM1646XH MITSUMI Absolute Maximum Ratings (Ta=25°C) Item Supply voltage Input voltage Maximum output current 1 Maximum output current 2 Allowable loss Operating temperature Storage temperature Symbol PreVCCl, 2 PowerVCC1, 2 VIN IO1 IO2 Pd TOPR TSTG Ratings Units -0.3~13.5 V -0.3~PreVCC+0.3 1.2 1 0.6 1 2.2 2 -40~+85 -55~+150 V A A W °C °C * * * Note: 1 Maximum output current l is output current of CH1 ~CH4 Maximum output current 2 is output current of loading part 2 Use base condition: 100 100mm, t=1.6mm, Glass epoxy mounting * * Recommended Operating Conditions Item Operating supply voltage Symbol PreVCC1 PreVCC2 PowerVCC1 PowerVCC2 Ratings 4.3~13.2 4.3~13.2 4.3~PreVCC1 4.3~PreVCC1 Units V 5ch Motor Driver MM1646XH MITSUMI Electrical Characteristics Item Quiescent current (Except where noted otherwise, Ta=25°C, PreVCC1=12V, PreVCC2=PowerVCC1=PowerVCC2=5V, VBIAS=VPS=2.5V, RL=8Ω) Symbol Quiescent current 1 ICC1 Quiescent current 2 ICC2 Quiescent current 3 ICC3 Quiescent current 4 ICC4 Power-save quiescent current IPS1 Voltage for power-save ON Voltage for power-save OFF Voltage for short-brake ON Voltage for short-brake OFF ch1／ch4 actuator driver Output offset voltage Output saturation voltage H Output saturation voltage L Closed loop voltage gain ch2 sled motor driver Output offset Voltage Output saturation voltage H Output saturation voltage L Closed loop voltage gain ch2 OP-amp Input offset voltage Common mode input range Input bias current High-level output voltage Low-level output voltage Output source current Output sink current Spindle motor driver Output offset voltage Output saturation voltage H Output saturation voltage L Closed loop voltage gain Loading motor driver Output saturation voltage H Output saturation voltage L Voltage for VINLO-/+ON Voltage for VINLO-/+OFF Input current for VINLO-/+ VPSON VPSOFF VSBON VSBOFF Measurement conditions Min. Typ. Max. Units PS=H (I pre VCC1) consumption current except a loading part PS=H, VINLO+/LO-=0V Loading Part Stand-by PS=L, VINLO+=5V, LO-=0V Loading Part CW PS=L, VINLO+=5V, LO-=5V Loading Part Brake PS=L, VINLO+/LO-=0V Loading Part Stand-by 18 27 mA 0.5 mA 25 35 mA 48 67 mA 0.5 mA 0.5 0.5 V V V V 50 1.5 0.6 25.0 mV V V dB mV V V dB mV V nA V V mA mA 0 2.0 2.0 0 VOFF VOH VOL GV VIN=VBIAS IL=-500mA IL=500mA VIN=VBIAS±0.2V VOFFSL VOHSL VOLSL GVSL -50 0 1.0 21.0 23.0 VIN=VBIAS IL=-500mA lL=500mA VIN=VBIAS±0.2V -100 0 1.0 18.0 20.0 100 1.5 0.6 22.0 VOFFOP VICM IBOP VOHOP VOLOP ISO ISI VIN=VBIAS -10 -0.3 30 10 11.0 300 VOFFSP VOHSP VOLSP GVSP VIN=VBIAS IL=-500mA IL=500mA VIN=VBIAS±0.2V VOHLOA VOLLOA VINH VINL IINBIAS IL=-200mA IL=200mA VIN=VBIAS 4.8 0.1 0.5 0.3 -50 0 1.0 13.5 15.5 50 1.5 0.6 17.5 mV V V dB 1.5 0.6 V V V V µA 0.3 1 1 2.0 0 VINLO (+), (-) =2.5V 250 0.5 330 5ch Motor Driver MM1646XH MITSUMI Measuring Circuit 1 28 VPS 2.5V VSB 2 27 A VBIAS 2.5V IBIAS1 VIN5+ 3 26 A IBIAS2 VIN1 VIN5IO1 A 4 25 IO2 A 5 24 VIN2 a b SW1 51Ω IS A VIN4 V VOFF 6 23 VIN3 V VOP Pre VCC1 7 SW2 22 A Ipre1 A Ipre2 c b a Pre VCC2 5v Pre VCC1 12V 8 Power VCC1 5V 9 Power VCC2 5V 10 IL=500mA b RL OPEN c IL=200mA b 20 SW7 VO5 V a RL 19 IL=500mA b 21 11 SW3 a V VO1 18 12 17 IL=500mA VO4 V 13 SW3 a V VO2 16 14 15 Pow VCC1/VCC2 V VOH 11p/12p/13p/14p/15p 16p/17p/18p/19p/20p V VOL a RL IL=500mA b b RL SW6 VO3 V SW5 a RL 5ch Motor Driver MM1646XH MITSUMI Input Condition Table Input voltage Item VIN1~ VIN5- VIN5+ VIN4 2.5V 0V 0V 2.5V 0V 0V 2.5V 5V 0V 2.5V 5V 5V Quiescent current 1 Quiescent current 2 Quiescent current 3 Quiescent current 4 Power-save 1 2.5V quiescent current Voltage for power 1 save ON 2.5V Voltage for power-save OFF 2.5V Voltage for short-brake ON 2.6V Voltage for short-brake OFF 2.6V ch1∼ch4/ch1∼ch4 <Driver> Output offset voltage 2.5V Output saturation voltage H 5V Output saturation voltage L 0V Closed loop voltage gain 2.7V ch2<OP-amp> Input offset voltage 2.5V Common mode input 0.3V range 11V Input bias current 2.5V High-level output voltage 5V Low-level output voltage 0V Output source current 5V Output sink current 0V Loading motor driver Output saturation voltage H 2.5V Output saturation voltage L 2.5V Voltage for VINLO-/+ON 2.5V Voltage for VINLO-/+OFF 2.5V Input current for VINLO-/+ 2.5V SW VPS VSB SW1 5V 5V 0V 0V 0V 0V 0V 0V b b b b SW3~ Condition SW2 SW7 b a No load b a No load b c No load b c No load No load Measure point Ipre1 Ipre2 Ipre2 Ipre2 0V 0V 0V 0V b b a Ipre1 0V 0V 0V 0V 0V 0V 0V 0V 0.5V 2.0V 5V 5V 0V 0V 2.0V 0.5V b b b b b b b b a a a a 0V 0V 0V 0V 0V 0V 0V 0V 5V 5V 5V 5V 0V 0V 0V 0V b b b b b b b b c b b a VIN＝VBIAS VO1∼VO4 IL＝−500mA VOH1∼VOH4 lL＝500mA VOL1∼VOL4 VO1∼VO4 0V 0V 5V 0V b b a VIN＝VBIAS 0V 0V 5V 0V a b a 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 5V 5V 5V 5V 5V 0V 0V 0V 0V 0V a b b b b b b b c a a a a a a VIN＝VBIAS IO1、 2 VOP VOP IS IS 0V 5V 2.0V 0.5V 2.5V 5V 0V 0V 0V 2.5V 5V 5V 5V 5V 5V 0V 0V 0V 0V 0V b b b b b b b b b b b b a a a lL＝−200mA IL＝200mA VOH5 VOL5 lpre2 Ipre2 IBIAS1、 2 Ipre1 Ipre1 Ipre1 Ipre1 VOFF VOP 5ch Motor Driver MM1646XH MITSUMI Application Circuit Pre VCC2 Loading Motor Spindle Motor M M Actuator Traking 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 SPDL TRK LOADLOAD+ FOC SLED Isb V2 Ips =5V Rp2 =20k Power VCC1 Power VCC1 V1 =5V Rp2 =20k Pre VCC1 M Sled Motor Actuator Focus VBIAS PS SB 1）It is in use that the by-pass capacitor is between VCC-pin and GND-pin of IC as possible as near (approximately 0.1µF). 2）Heat dissipation fins are in use to connect to the external GND. 3）It is in use that the pull-up resistance, if required for PS and SB. Current of PS and SB is showed as follow. IPS=(V1−VPS)/RP1 ISB=(V2−VSB)/RP2 V1 (V2)=5V: pull up voltage RP1 (RP2)=5V: pull up resistance In the event a problem which may affect industrial property or any other rights of us or a third party is encountered during the use of information described in these circuit. Mitsumi Electric Co., Ltd. shall not be liable for any such problem, nor grant a license therefor. 5ch Motor Driver MM1646XH MITSUMI Movement explanation 1. Four type mute circuit that is off state built-in. Item Power-save mute function (PIN 1) Bias mute function (PIN 2) Supply voltage mute function (PIN7) Thermal shutdown circuit Conditions OPEN or Below 0.5V typ. Current of PS is 110µA. when 5.0V typ. Below 0.9V typ. Over 1.2V typ. Below 3.5V typ. Over 3.7V typ. Chip temperature rises to 175°C typ. Chip temperature falls below 150°C typ. Function Circuit is muted from 1ch to 4ch. Normal operating. Output current is muted. Normal operating. Output current is muted. Normal operating. Output current is muted. Normal operating. 2） Short-brake Function (spindle motor: ch3) Short-brake function (28 PIN) Open or below 0.5V typ. Current of SB is 280µA, when 5.0V. 3. Input / Output truth table a. Power Save part PS L H ON OFF * ■ Circuit behavior of short-brake Driver output ch1~4 Loading OFF ON ON ON Power VCC2 OFF b. Thermal shutdown TSD Normal operating. spindle motor is stopped. Refer to fig.1 ON OUT3+ OFF ON Driver output ch1~4 Loading OFF ON ON ON Motor c. Loading part VINLO+ H L H L VINLOL H H L OUTL+ H L L OPEN OUTLL H L OPEN Mode Forward Mode Reverse Mode Brake Mode Standby Mode OUT3- 5ch Motor Driver MM1646XH MITSUMI Characteristics Allowable Loss (W) Allowable Loss 2.5 Board mounting conditions thickness 1.6mm 100mm 100mm 2 1.5 1 0.5 0 0 25 50 75 100 125 150 175°C Ambient Temperature (T) VOUT (V) Spindle Driver Output Voltage 5 4 PreVCC=12V 3 PowVCC1, 2=5V 2 BIAS=2.5V 1 0 -1 -2 -3 -4 -5 -2.5 -2 -1.5 RL=20Ω 4Ω 8Ω 12Ω -1 -0.5 0 0.5 1 1.5 2 2.5 VIN (V) VOUT (V) Sled Driver Output Voltage 12 10 PreVCC=12V 8 PowVCC1=5V 6 4 BIAS=2.5V 2 0 -2 -4 -6 -8 -10 -12 -2.5 -2 -1.5 RL=20Ω 8Ω 12Ω -1 -0.5 0 VIN (V) 0.5 1 1.5 2 2.5 5ch Motor Driver MM1646XH MITSUMI VOUT (V) Focus / Tracking Driver Output Voltage 5 4 PreVCC=12V 3 PowVCC1, 2=5V 2 BIAS=2.5V 1 0 -1 -2 -3 -4 -5 -2.5 -2 -1.5 RL=20Ω 4Ω 8Ω 12Ω -1 -0.5 0 0.5 1 1.5 2 2.5 0.7 0.8 0.9 1 0.7 0.8 0.9 1 VIN (V) Loading Driver IL vs Saturation Voltage H 2.5 PreVCC2=5V PowVCC2=5V VINLO+=5V VINLO-=0V VCE (V) 2 1.5 1 0.5 0 0 0.1 0.2 0.3 0.4 0.5 0.6 IL (A) Loading Driver IL vs Saturation Voltage L 2.5 PreVCC2=5V PowVCC2=5V VINLO+=5V VINLO-=0V VCE (V) 2 1.5 1 0.5 0 0 0.1 0.2 0.3 0.4 0.5 IL (A) 0.6