UA8888SL-SH1-T

UNISONIC TECHNOLOGIES CO., LTD UA8888S 5-CHANNEL BTL DRIVER FOR DVD PLAYER DESCRIPTION The UTC UA8888S is a 5-channel BTL driver IC for DVD player. It is developed to driving the motors and actuators and consists of two independent precision voltage regulators with adjustable range from 1.5V~4V. LINEAR INTEGRATED CIRCUIT FEATURES * Voltage-type BTL drivers: - two channels : actuators of tracking and focus - two channels : sled and spindle motors. - one channel : bi-direction DC motor driver for tray. * Wide dynamic range: 9.0V (typ.) when VCC1= VCC2= 12V, at RL= 20Ω load. 4.0V (typ.) when VCC1=12V,VCC2=5V,at RL=15Ω load * Separating power of VCC1 and VCC2 is to improve power efficiency by a low supply voltage for tracking, focus, and spindle. * Built-in level shift circuit and mute mode. * Thermal shutdown protection. * Differential inputs for signal addition are provided by input OPs. The output structure for dual actuator driver is two power OP Amps in bridge configuration, and one OP Amp for Sled Motor Driver. * Spindle driver is a single input linear BTL driver. The output structure is two power OP Amps in bridge configuration. * Tray in-out driver functions as a DC motor driver supports forward/reverse control for tray motor. * Built-in regulator controllers: Adjustable range 1.5V ~ 4V HSOP-28 *Pb-free plating product number: UA8888SL ORDERING INFORMATION Ordering Number Normal Lead Free Plating UA8888S-SH1-R UA8888SL-SH1-R UA8888S-SH1-T UA8888SL-SH1-T Package HSOP-28 HSOP-28 Packing Tape Reel Tube U A8888SL-SH1-R (1)Packing Type (2)Package Type (3)Lead Plating (1) R: Tape Reel, T: Tube (2) SH1: HSOP-28 (3) L: Lead Free Plating, Blank: Pb/Sn www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd 1 of 8 QW-R109-015,B UA8888S PIN CONFIGURATION V INFC TRB_1 REGO 2 V INSL+ REGO 1 FWD REV 1 2 3 4 5 6 7 LINEAR INTEGRATED CIRCUIT 28 MUTE 27 BIAS 26 25 24 23 22 V INTK TRB_2 NC V INLD GND UA8888S Vcc1 V OTRV OTR+ V OSL+ V OSLV OFCV OFC+ 8 9 10 11 12 13 14 21 20 19 18 17 16 15 V CTL NC Vcc2 V OLDV OLD+ V OTKV OTK+ PIN DESCRIPTION PIN NO. PIN NAME FUNCTION 1 VINFC Input for focus driver 2 TRB_1 Connect to external transistor base 3 REGO2 Regulator voltage output, connect to external transistor collector 4 VINSL+ Input for the sled driver 5 REGO1 Regulator voltage output, connect to external transistor collector 6 FWD Tray driver forward input 7 REV Tray driver reverse input 8 VCC1 Vcc for pre-drive block and power block of sled and tray 9 VOTRTray driver output (-) 10 VOTR+ Tray driver output (+) 11 VOSL+ Sled driver output (+) 12 VOSLSled driver output (-) 13 VOFCFocus driver output (-) 14 VOFC+ Focus driver output (+) 15 VOTK+ Tracking driver output (+) 16 VOTKTracking driver output (-) 17 VOLD+ Spindle driver output (+) 18 VOLDSpindle driver output (-) 19 VCC2 Vcc for power block of spindle, tracking and focus 20 NC No Connection 21 VCTL Speed control input of tray driver 22 GND Ground 23 VINLD Input for spindle driver 24 NC No Connection 25 TRB_2 Connect to external transistor base 26 VINTK Input for tracking driver 27 BIAS Input for reference voltage 28 MUTE Input for mute control Notes: Symbol of + and – (output of drivers) means polarity to input pin. (Ex. if voltage of pin1 is high, pin14 is high.) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 8 QW-R109-015,B UA8888S BLOCK DIAGRAM MUTE 28 BIAS 27 VINTK TRB_2 26 25 NC 24 VINLD 23 GND MUTE and Thermal Shut down + 60K 60K + 225K GND 22 PGND VCTL 21 LINEAR INTEGRATED CIRCUIT NC 20 VCC2 19 VOLD- VOLD+ VOTK- VOTK+ 18 17 16 15 VCC2 90K Actuator Driver(4x) Spindle Driver(4X) - 1.25V + 1.25V VCC2 VCC2 VCC1 60K + 225K + 150K Pre-DRV PGND VCC1 TRAY DRIVER Sled Driver(4X) Actuator Driver(4x) + 3 4 5 6 7 REV - 60K 2 1 8 VCC1 9 10 11 12 13 14 VOFC+ VINFC TRB_1 REGO2 VINSL+ REGO1 FWD VOTR- VOTR+ VOSL+ VOSL- VOFC- UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 8 QW-R109-015,B UA8888S ABSOLUTE MAXIMUM RATINGS (Ta=25℃) PARAMETER Supply Voltage Power Dissipation (Note) Derating Rate Ta>25℃ LINEAR INTEGRATED CIRCUIT SYMBOL VCC RATINGS UNIT 15 V 1.7 W PD mW /℃ 13.6 ℃ Operate Temperature TOPR -35 ~ +85 ℃ Storage Temperature TSTG -55 ~ +150 Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. GUARANTEED OPERATING CONDITIONS (Ta=25℃) PARAMETER Power Supply Voltage SYMBOL VCC1 VCC2 RATINGS 4.5~13.2 4.5~VCC1 UNIT V V ELECTRICAL CHARACTERISTICS (Ta=25℃, VCC1=12V, VCC2=5V, Bias=2.5V, RL=8Ω/10Ω/20Ω/45Ω, unless otherwise specified.) PARAMETER Voltage for Mute Quiescent Current Actuator Drivers Output Offset Voltage Maximum Output Voltage Voltage Gain Sled Motor Driver Output Offset Voltage Maximum Output Voltage Closed Loop Voltage Gain Spindle Motor Driver Output Offset Voltage Maximum Output Voltage Voltage Gain Gain Error by Polarity Tray Motor Driver Output Saturation Voltage VO(SAT2) Output Saturation Voltage Between F&R △VO(SAT1) ON OFF SYMBOL VSTON VSTOFF IQ VO(OFF) VO(MAX) GV VO(OFF) VO(MAX) GV(CL) VO(OFF) VO(MAX) GV △GV VO(SAT1) TEST CONDITIONS MIN 0 2.0 TYP MAX 0.5 5 UNIT V V mA mV V dB mV V dB mV V dB dB V V V dB V V µA V mV mV 25 ±50 @10Ω Load VIN=Bias+0.2Vpp ac @1KHz 3.6 4.0 23.5 ±100 @20Ω Load VIN=Bias+0.2Vpp ac @1KHz 7.5 18 9.0 20 22 ±50 @8Ω Load VIN=Bias+0.2Vpp ac @1KHz VIN=Bias+0.2Vpp ac @1KHz Upper + Lower saturation IL=200mA Upper + Lower saturation IL=500mA Output saturation voltage 1 between FWD and REV 13.3 0 0.7 1.0 3.5 15.5 1 1.1 1.55 17.5 2 1.5 2.2 0.1 7.4 1.5 -0.3 180 1.5 -50 -25 9.2 11 Vcc 0.5 270 4.0 50 25 Output Adjustable Gain on “H” Side GV(ADJ) VCTL=2V Voltage Tray Motor Driver Input Logic High VI(H) Level Input Voltage Low VI(L) High Level Input Current II(H) VFWD=VREV=5V Regulator (Note 2) Output Voltage VOUT IL = 500mA(Note 3) Output Load Differential △VO(DIFF) IL = 0 ~ 500mA Power supply Voltage Differential △VVCC (VCC=4.5~8V), IL = 500mA Note: 1.This device is not designed for protection against radioactive rays. 2. Based on 8550C PNP application. 3. Based on 8550D. 0 0 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 8 QW-R109-015,B UA8888S TYPICAL APPLICATION CIRCUIT SERVO LINEAR INTEGRATED CIRCUIT U-COM Tracking Vcenter MUTE Focus FWD REV Sled Spindle 5V Tray voltage control 5v or 12V 10μ F NC NC M 19 18 17 Tracking coil 16 15 28 27 26 25 24 23 22 21 20 UTC UA8888S 1 10 K 47μF 5V ADJ 2.5V REGOUT 10 μF 2 3 10K 4 16.4K 5 6 7 12 V 8 9 M 10 11 M 12 13 14 Focus coil 10 K ADJ 3.3V REGOUT 47μF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 8 QW-R109-015,B UA8888S OPERATION NOTES LINEAR INTEGRATED CIRCUIT (1) The thermal shutdown function will be triggered while the chip junction temperature reach 150℃ typical, and then the output current is muted. The hysteresis is set to 25℃ typical, so the circuit will start up again when the chip temperature falling to 125℃ typical. (2) In case mute pin voltage is under 0.5V or NC, output current is muted except for tray motor driver. Mute pin voltage should be more than 2.0V for normal application. (3) Pin 27(Bias pin) should be pulled up to more than 1.2V. In case the bias pin voltage is pulled down below 0.9V(typ.), the output current is muted. (4) Insert the bypass capacitor (~0.1µF) between VCC pin and GND pin as close as possible. (5) Ground-plane wiring up to GND is performed and should tightly connect to external GND. (6) Pin 20 and 24 should be floated due to reserve for internal test only. (7) When Vcc1 voltage drop to below 3.8V, schematic is muted. The schematic will return to work when Vcc1 rise up with a hysterisis of 0.3V(typ.) (8) Tray driver logic input: FWD (pin6) L L H H REV (pin7) L H L H VOTR+ (pin10) OPEN L H L VOTR- (pin9) OPEN H L L Function Open mode Reverse mode Forward mode Brake mode Pin 6 and Pin 7 are designed to avoid simultaneous activation of upper and lower output transistors, however, in order to improve reliability, apply motor forward/reverse input once through open mode. We recommend time period for open longer than 10msec. The voltage between “H” side and “L” side output voltage is equal to three times(9.2dB Typ.) VTCL voltage(Pin21). And the “H” side and “L” side output voltage both equal to VCC/2 when in open mode and brake mode. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 8 QW-R109-015,B UA8888S TESTING CIRCUIT 5V V23 10 μF V28 28 V27 27 26 V26 25 LINEAR INTEGRATED CIRCUIT 8 OPEN 21 NC 20 19 V19 18 17 16 10 NC 24 23 22 15 UTC UA8888S 1 V1 2 3 4 V4 5 V6 6 V7 7 V8 8 9 10 11 12 13 14 10K 47μF ADJ 2.5V REGOUT 5V 10 ADJ 3.3V μF REGOUT 10K 45 10K 20 10 16.4K 47μF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 8 QW-R109-015,B UA8888S POWER DISSIPATION CURVE LINEAR INTEGRATED CIRCUIT 2.0 1.7 1.5 PD (W) 1.0 0 25 50 75 Ta (℃) 100 125 150 * 70mm×70mm×1.6mm glass epoxy board. * Reduced by 13.6mW /℃ for operating in above 25℃. UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 8 of 8 QW-R109-015,B