AT5683 Preliminary Product information 4-channel BTL Motor Driver for CD/CD-ROM Features ˙4 channel BTL motor driver. ˙Wide dynamic range.(4V(typ.) at PreVcc=8V, PowVcc=5V, RL=8Ω) ˙Separating Vcc into Pre and power (Power divides into CH1/2/4 and CH3), can make better power efficiency, by low supply voltage drive. ˙Mute operated indivisually CH4 and CH1/2/3. ˙All channels mute is stand by mode. ˙Suitable for low operation voltage DSP by wide D-range pre opamp. ˙Thermal shutdown circuit on chip. ˙Compatible with BA5983 Description The AT5683 is a 4-channel BTL driver IC for driving the motors in products such as CD/CDROM drives. Suitable for low operation voltage DSP by wide D-range pre opamp. Small surface mounting power package (HSOP28). Applications CD drives, CD-ROM drives, Block Diagram Aimtron reserves the right without notice to change this circuitry and specifications. 10F-1, 55, Tong-Kuan Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 1 Email: [email protected] http://www.aimtron.com.tw 04/09/24 AT5683 Preliminary Product information 4-channel BTL Motor Driver for CD/CD-ROM 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 BIAS IN OPIN1(+) OPIN1(-) OUTPUT1 OPIN2(+) OPIN2(-) OUTPUT2 GND STBY1 PowVcc1 VO2(-) VO2(+) VO1(-) VO1(+) VO4(+) VO4(-) VO3(+) VO3(-) PowVcc2 STBY2 GND OUTPUT3 OPIN3(-) OPIN3(+) OUTPUT4 OPIN4(-) OPIN4(+) PreVcc Function Input for Bias-amplifier Op-amp positive input for CH1 Op-amp negative input for CH1 Op-amp output for CH1 Op-amp positive input for CH2 Op-amp negative input for CH2 Op-amp output for CH2 Substrate ground Input for CH1/2/3 STBY control Vcc for CH1/2/4 power block Negative output of CH2 Positive output of CH2 Negative output of CH1 Positive output of CH1 Positive output of CH4 Negative output of CH4 Positive output of CH3 Negative output of CH3 Vcc for CH3 power block Input for CH4 STBY control Substrate ground Op-amp output for CH3 Op-amp positive input for CH3 Op-amp negative input for CH3 Op-amp output for CH4 Op-amp positive input for CH4 Op-amp negative input for CH4 Vcc for pre block Notes: Symbol of ＋ and － ( output of drivers ) means polarity to input pin. ( For example if voltage of pin4 high, pin14 is high. ) PinOut 10F-1, 55, Tong-Kuan Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 2 Email: [email protected] http://www.aimtron.com.tw 04/09/24 AT5683 Preliminary Product information 4-channel BTL Motor Driver for CD/CD-ROM Absolute maximum ratings (Ta = 25oC) Parameter Power supply voltage Power dissipation Max output current Operating temperature Storage temperature Symbol VCC Pd IOM Topr Tstg Limits 13.5 1.7*1 1*2 -35~+85 -35~+150 unit V W A o C o C ﹡1 On less than 3﹪(percentage occupied by copper foil), when mounted on a 70mm ×70mm ×1.6 mm glass epoxy board. Reduce power by 13.6 mW for each increase in Ta of 1oC over 25oC. ﹡2 The output current must not exceed the maximum Pd and ASO. Recommended operating conditions (Ta = 25oC) Parameter Vcc for pre block Vcc for power block Symbol PreVcc PVcc Limits 4.5~13.2 4.5~Pre unit V V Electrical characteristics (unless otherwise noted, Ta = 25oC, PreVCC = PowVCC2 =8V, PVCC1 =5V, VBIAS=1.65V, RL=8Ω) Parameter Quiescent current CH1/2/3 Stand-by current CH4 Stand-by current All channel Stand-by current <Driver block> Output offset voltage 1 Maximum output voltage 1 Maximum output voltage 2 Close loop voltage gain 1 Close loop voltage gain 2 Slew Rate Standby ON voltage Standby OFF voltage Bias drop mute ON voltage Bias drop mute OFF voltage <Loading motor driver> Common mode input range Input offset voltage Input bias current High level output voltage Low level output voltage Output sink current Output source current Slew rate Symbol Min. － IQ － IQST1 － IQST2 － IQST3 Typ. 20 6.2 16 Max. 32 13 26 10 Unit mA mA MA mA VOOF VOM1 VOM2 GVC1 GVC2 SRDRV VSTON VSTOFF VBMON VBMOFF －70 3.6 7.5 10 16 － 4.0 9.0 12 18 1 70 0.5 2.0 － － － － 0.7 1.3 － － mA V V dB dB V V V V V VICM VOFOP VBOP VOHOP VOLOP ISI ISO SROP 0 －6 － － － 10 6 300 11 － － － － － 0.3 800 2 － － － 1 400 － － 0 － － 14 20 － － － － Conditions RL=∞ RL=∞ RL=∞ RL=∞ CH1,2 VIN =VBIAS±2.0V CH3,4 VIN = VBIAS±2.0V CH1,2 VIN = VBIAS±0.5V CH3,4 VIN = VBIAS±0.5V V mV nA V V mA μA V/μS *This product is not designed for protection against radioactive rays. 10F-1, 55, Tong-Kuan Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 3 Email: [email protected] http://www.aimtron.com.tw 04/09/24 AT5683 Preliminary Product information 4-channel BTL Motor Driver for CD/CD-ROM Typical Curve Test Circuit 10F-1, 55, Tong-Kuan Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 4 Email: [email protected] http://www.aimtron.com.tw 04/09/24 AT5683 Preliminary Product information 4-channel BTL Motor Driver for CD/CD-ROM Application example Operation notes (1) Thermal-shut-down circuit is built in. In case IC chip temperature rise to 175 ℃ (typ.), thermal-shut-down circuit operates and muted the output current. Next time IC chip temperature falls below 150 ℃ (typ.), the driver blocks start. (2) In case supply voltage falls below 3.8V(typ.), output current is muted. Next time supply voltage rises to 4.0V(typ.), the driver block start. (3) Bias-pin (pin 27) should be pulled up more than 1.3V. In case bias-pin voltage is pulled down under 0.7V (typ.), output current is muted. (4) Mute operation is caused by Thermal-shutdown, Stand-by, decrease of bias pin voltage or decrease of supply voltage. When mute is done, output voltage becomes internal reference voltage (about PowVcc/2). (5) One of the standby terminals low or open, muted channel circuit (include opamps) shutdown. 10F-1, 55, Tong-Kuan Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 5 Email: [email protected] http://www.aimtron.com.tw 04/09/24 AT5683 Preliminary Product information 4-channel BTL Motor Driver for CD/CD-ROM (6) both of the standby terminals low or open, all circuit circuits shutdown(sleep mode) and all output pin become high impedance. (7) Supply voltage of PreVcc should be equal to or higher than PowVcc. (8) Take care the external resister value of OPamp. OPamp source current supplies to external resister as well as internal resister (10k). (9) Keep the GND pin voltage the lowest of all terminals. (10) Insert the by-pass capacitor between Vccpin and GND-pin of IC as possible as near (approximatelv 0.1μF). (11) Heat dissipation fins are attached to the GND on the inside of the package. Make sure to connect these to the external GND. Package Outlines (units:mm): HSOP-28 Ordering Information Part number Package Marking AT5683H 28-pin HSOP AT5683H 10F-1, 55, Tong-Kuan Road, Hsinchu, Taiwan, R.O.C. Tel: 886-3-575-3058 Fax: 886-3-575-3015 6 Email: [email protected] http://www.aimtron.com.tw 04/09/24