AT5668 Preliminary Product Information 5-Channel Motor Driver for DVD/VCD Features Description ˙4 channels of DC motor BTL driver ˙1 channels forward/reverse control DC motor driver ˙Built-in suspension function. ˙Built-in 1-channel OPA. ˙Built-in 1-Channel Comparator. ˙Built-in thermal shutdown circuit. ˙Operating voltage: 4.5V~13.2V The AT5668 is a 5-channel BTL driver IC. Two of them can drive DC motors and two can drive coils, such as the focus and tracking actuators of a CD-ROM/DVD-ROM/DVD-Player system, with current feedback. It also built-in one channel bi-direction DC motor driver for Tray. Applications CD-ROM/DVD-ROM/CD-RW drives DVD player. Block Diagram Aimtron reserves the right without notice to change this circuitry and specifications. 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: [email protected] 1 AT5668 Preliminary Product Information 5-Channel Motor Driver for DVD/VCD Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin name IN1 CP1N CP1P IN2 CP1O FWD REV VCC1 OUT5OUT5+ OUT2+ OUT2OUT1OUT1+ OUT4+ OUT4OUT3+ OUT3VCC2 OP2O VCTL GND IN3 OP2N OP2P IN4VBIAS MUTE_1_2_3_4 Function CH1(Focus coil) input Comparator negative input Comparator positive input CH2(Sled driver) input Comparator Output CH5 forward input CH5 reverse input Power Supply 1 CH5(Tray driver) output(-) CH5(Tray driver) output(+) CH2(Sled driver) output (+) CH2(Sled driver) output (-) CH1(Focus coil) output (-) CH1(Focus coil) output (+) CH4(Tracking coil) output (+) CH4(Tracking coil) output (-) CH3(Loader) output (+) CH3(Loader) output (-) Power Supply 2 Error amplifier output CH5 Speed control input Ground CH3(Loader) input Error amplifier negative input Error amplifier positive input CH4 (Tracking driver) input VREF input pin Mute control for CH1,CH2,CH3,CH4 Pin Out 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: [email protected] 2 AT5668 Preliminary Product Information 5-Channel Motor Driver for DVD/VCD Ordering Information Part number Package Marking AT5668H 28-pin HSOP AT5668H Power Dissipation (Ta = 25oC) Condition: mount on 50x50 mm2 t=1.0mm paper phenol PCB Absolute maximum ratings (Ta = 25oC) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC1,2 Pd Topr Tstg Limits 13.5 1.7 -30~+80 -55~+150 unit V W o C o C NOTE:* 1. Power dissipation reduces 13.6mW / °C for using above Ta=25°C 2. Do not exceed Pd and SOA. Recommended operating conditions (Ta = 25oC) Parameter Power supply voltage Symbol VCC1 VCC2 Limits 4.0~13.2 4.0~Vcc1 unit V V 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: [email protected] 3 AT5668 Preliminary Product Information 5-Channel Motor Driver for DVD/VCD Electrical characteristics (unless otherwise noted, Ta = 25oC,VCC1 =12V, VCC2 =5V, VBIAS=2.5V, RL1= RL4=8Ω, RL2= RL3=12Ω) Parameter Quiescent current Mute quiescent current Mute ON voltage Mute OFF voltage <Track driver> Output voltage offset Maximum output voltage Closed loop gain <Focus driver> Output voltage offset Maximum output voltage Closed loop gain <Sled motor driver> Output voltage offset Maximum output voltage Closed loop gain <Spindle motor driver> Output voltage offset Maximum output voltage Maximum output voltage Symbol Min. IQC IQSB VSBON 0 VSBOFF 2.0 Typ. 18 - Max. 30 5 0.5 - Unit Conditions mA No Load mA CH5 ,OPA,COMP. active V V VOFFSL VO3MAX GVSL -100 3.6 18.0 0 4.0 20.0 100 22.0 mV V dB VIN = VBIAS ±1.5V VIN = VBIAS ±0.2V VOFFSL VO3MAX GVSL -100 3.6 18.0 0 4.0 20.0 100 22.0 mV V dB VIN = VBIAS ±1.5V VIN = VBIAS ±0.2V VOFFSL VO3MAX GVSL -100 7.5 18.0 0 9.0 20.0 100 22.0 mV V dB VIN = VBIAS ±1.5V VIN = VBIAS ±0.2V VOFFLD VO4max1 VO4max2 -100 7.5 3.6 0 9.0 4.0 100 - mV V V Closed loop gain Gain error <Tray motor driver> Maximum output voltage GVLD ΔGVLD 13.5 0 15.5 1 17.5 2 dB dB VO5max1 3.8 - 4.2 V Output voltage offset Input high level voltage Input low level voltage <OPA> Input Dynamic Range VOFFTR VIH VIL -100 2.0 - 0 - 100 0.8 mV V V 0 - V Output Dynamic Range VO 1 - GVC VS VOffset 70 - 0.25 - VCC11.5V VCC11.0V 90 0.4 ±10 VOffset 0 - Output Dynamic Range VO 0.25 - Saturation Voltage VS - 0.25 Voltage Gain Saturation Voltage Input Offset <Comparator> Input Offset Input Dynamic Range ±10 VCC11.5V VCC11.0V 0.4 V dB V mV VIN = VBIAS±2.0V VIN = VBIAS ±1.5V VCC1=5V VIN = VBIAS ±0.2V VIN = VBIAS±0.2V RL5=45Ω, RVCTL=0Ω, VCC1=VCC2=5V IO =-0.25mA~3mA IO =3mA mV V V IO =-0.25mA~3mA V IO =4mA 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: [email protected] 4 AT5668 Preliminary Product Information 5-Channel Motor Driver for DVD/VCD Tray Motor Driver Fig1. Input Ouput FWD REV OUT5+ OUT5- Status High High Low Low Break High Low High Low Forward Low High Low High Reverse Low Low Open Open Standby Tray Motor Speed Control The amplitude of the output voltage is controlled by VCTL(pin21). If you want to control differential output voltage of the tray, insert external resistor RVCTL as shown in figure 1. 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: [email protected] 5 AT5668 Preliminary Product Information 5-Channel Motor Driver for DVD/VCD Test Circuit 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: [email protected] 6 AT5668 Preliminary Product Information 5-Channel Motor Driver for DVD/VCD Typical Curve 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: [email protected] 7 AT5668 Preliminary Product Information 5-Channel Motor Driver for DVD/VCD 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: [email protected] 8 AT5668 Preliminary Product Information 5-Channel Motor Driver for DVD/VCD Tray Speed Control(RL=45 ohm ) 11 Maximum Output Voltage(V) 10 9 8 7 6 5 4 5 6 7 8 9 10 11 12 VCTL 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: [email protected] 9 AT5668 Preliminary Product Information 5-Channel Motor Driver for DVD/VCD Application circuit 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: [email protected] 10 AT5668 Preliminary Product Information 5-Channel Motor Driver for DVD/VCD Package Outlines (units:mm): HSOP-28 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: [email protected] 11