S3052

5CH BTL Motor Drive IC S3052 Semiconductor http:// www.auk.co.kr Description The S3052 is 5 Channel BTL DC motor driver IC for controlling the motors and actuators of DVD-Player and it contain 2 independent precision voltage regulators with adjustable range from 1.24V to 4V. Furthermore, it offer a free comparator for spindle motor back emf detection. It supports various applications with pb free package. Application ◈ CD-Player SSOPH-28N With Heat-sink ◈ CD-ROM ◈ DVD-Player Features and Benefits ◈ 1 Channel is bi-directional DC motor driver for tray. ORDERING INFORMATION ◈ 4 Channels are voltage-type BTL drivers for actuators, sled and spindle motors. ◈ Built in Level shift circuit. Product S3052 Marking S3052 Package SSOPH-28N ◈ Built in Thermal shut down circuit. ◈ Built in Mute mode. ◈ Built in 2 Regulator controllers. Adjustable range [ 1.25V to 4V ] ▲ Marking Detail Information ◈ A Free comparator Spindle motor back emf detection ◈ Dual Actuator drivers A general purpose input OP Provides differential input for signal addition. The output structure is two power OPAMPS in bridge configuration. ◈ Sled motor driver A general purpose input OP provides differential input for signal addition. The output structure is one power OPAMP in bridge configuration. ◈ Spindle driver Single input linear BTL driver. The output structure are two power OPAMPS in bridge configuration. ◈ Tray Bi-directional driver The DC motor driver supports forward/reverse control for tray motor. S3052(①) YYWW(②) ① Device Code ② Year & Week Code KSD-I7A002-003 SEPT., 2010 REV. 03 1 MUTE BIAS VINTK TRB_2 OPOUT VINLD GND VCTL OPIN VCC2 VOLD- VOLD+ VOTK- VOTK+ 28 27 GND PGND 26 23 25 24 22 21 20 19 18 17 16 15 Vcc2 10K MUTE 10K 15K +25K -+ Spindle Actuator Driver(4X) 8K Driver(6X) Thermal Shut down ◈ Internal Block Diagram & Pin Assignment 17.6K Vcc3 Vcc2 25K 10K Vcc1 +- 25K Sled Actuator Driver(4X) Pre-DRV PGND Vcc1 Driver(6X) TRAY DRIVER KSD-I7A002-003 +- S3052 2 -+ 10K 1 2 3 4 5 6 VINFC TRB_1 REGO2 VINSL+ REGO1 FWD 7 REV 8 9 10 11 12 13 14 VCC1 VOTR- VOTR+ VOSL+ VOSL- VOFC- VOFC+ SEPT., 2010 REV. 03 +- -+ S3052 ◈ Pin Description 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 SYMBOL VINFC TRB_1 REG02 VINSL REG01 FWD REV VCC1 VOTRVOTR+ VOSL+ VOSLVOFCVOFC+ VOTK+ VOTKVOLD+ VOLDVCC2 OPIN VCTL GND VINLD OPOUT TRB_2 VINTK BIAS MUTE I/O I O I I I I I PWR O O O O O O O O O O PWR I I I O O I I I Input for focus driver DESCRIPTION Connect to external transistor base Regulator voltage feedback, Connect to external bias resistor. Input for sled driver Regulator voltage feedback, Connect to external bias resistor. Tray driver input signal for forward direction Tray driver input signal for reverse direction VCC for pre-drive block and power block of sled & tray Tray driver output (-) Tray driver output (+) Sled driver output (+) Sled driver output (-) Focus driver output (-) Focus driver output (+) Tracking driver output (+) Tracking driver output (-) Spindle driver output (+) Spindle driver output (-) VCC for power block of focus, tracking and spindle Comparator input Speed control input of tray driver Ground Input for spindle driver Comparator output Connect to external transistor base Input for tracking driver Input for reference voltage Input for mute control Symbol of + and – [ output of drives ] means polarity to input pin. For example : if voltage level of pin1 is high, pin14 is high KSD-I7A002-003 SEPT., 2010 REV. 03 3 S3052 ◈ Absolute Maximum Ratings ( Ta = 25℃ ) Parameter Supply Voltage Power Dissipation Operate Temperature Range Storage Temperature Range Symbol VCC1/VCC2 Pd Topr Tstg Limits 13.5 1.7 -35 ~ +85 -55 ~ +150 Unit V W ℃ ℃ [ Pd ] When mounted on a 70mm×70mm×1.6mm glass epoxy board. Reduced by 13.6mW for each increase in Ta of 1℃ [ Tstg ] Should not exceed Pd or SOA and Tj=150℃ values ◈ Guaranteed Operating Conditions ( Ta = 25℃ ) Parameter Power Supply Voltage Symbol VCC1 VCC2 Limits 4.3 ~ 13.2 4.3 ~ VCC1 Unit V V ◈ Power Dissipation Curve [ Pd ] ◈ 70mm×70mm×1.6mm glass epoxy board . ◈ De-rating is done at 13.6mW/℃ for operating above Ta=25℃ KSD-I7A002-003 SEPT., 2010 REV. 03 4 S3052 ◈ Electrical characteristics ( Unless otherwise specified Ta=25℃, Vcc1=12V, Vcc2=5V, BIAS=2.5V, RL=8Ω/12Ω/20Ω/45Ω) NO Characteristics Symbol Condition MIN. 0 2 -50 3.6 21.5 -100 7.5 18.0 -50 13.5 0.7 1 7.4 1.5 -0.3 2.35 3.1 -50.0 -25.0 0.80 25.00 Specification TYP. 30 4 23.5 9.0 20.0 3.5 15.5 1.1 1.55 9.2 180.0 2.5 3.3 0.0 0.0 1.0 35.0 MAX. 0.5 5 50 25.5 100 22.0 50 17.5 1.5 0.1 2.2 11 Vcc 0.5 270.0 2.65 3.5 50.0 25.0 Vcc 0.5 Unit mA V V mV V dB mV V dB mV V dB V V V dB V V uA V mV mV mV V mA mA 1 Quiescent current Iqc 2 Voltage for Mute on Vston 3 Voltage for Mute off Vstoff < Actuator Driver: Focus, Tracking > 4 Output Offset Voltage Voo 5 Maximum output Voltage Vom 6 Voltage Gain Gv < Sled Motor Driver > 7 Output Offset Voltage Voosl 8 Maximum output Voltage Vomsl 9 Voltage Gain Gvsl < Spindle Motor driver > 10 Output Offset Voltage Voold 11 Maximum output Voltage Vomld 12 Voltage Gain Gvld < Tray Motor driver > 13 14 15 16 Output saturation Voltage1 Output saturation voltage between F&R Output saturation Voltage2 Vsat1 △Vsat1 Vsat2 VvtrH VIH VIL IIH Vreg Vld Vle VOH VOL Isink1 25 Output Sink Current Isink2 @12Ω Load VIN=BIAS+0.2Vpp ac @1khz @20Ω Load VIN=BIAS+0.2Vpp ac @1khz @8Ω Load VIN=BIAS+0.2Vpp ac @1khz Upper + Lower saturation IL=200mA Output saturation voltage1 between FWD and REV Upper + Lower saturation IL=500mA VCTL=2V Output adjustable gain on "H" side voltage < Tray Motor driver input logic > 17 High level input voltage 18 Low level input voltage 19 High level input current < Regulator > 20 Output voltage VFWD=VREV=5V IL=500mA IL=0~500mA Vcc=4.5~8V, IL=500mA Vcc1=VRC=5V VOLD+=3V,OPIN=3V Vcc1=VRC=5V VOLD+=3V,OPIN=1V Vcc1=VRC=5V,VOLD+=3V, OPIN=1V,RL=4.7k Vcc1=VRC=5V,VOLD+=3V, OPIN=1V 21 Load Regulation 22 Line Regulation < Comparator > 23 24 High level output voltage Low level output voltage [Regulator] It is based on STA353 PNP application. Vreg can be set to other voltage with 5% deviation. KSD-I7A002-003 SEPT., 2010 REV. 03 5 S3052 Application Information 1. Thermal Shut Down Circuit Focus, Tracking, Tray, Spindle, Sled, Con. Current Reg. Bandgap Voltage [ 1.25V ] R2 R3 IHys R4 R1 The built-in thermal shutdown circuit mutes the output current when the chip temperature reaches 175℃ (typ.). The hysteresis is set to 25℃ (typ.) by IHys, so the circuit will start up again when the chip temperature falling to 150℃ (typ.) 2. Regulator Circuit 5V Internal Circuit External Circuit Ref. Voltage [ 1.25V ] + STA353 Vout R1 R2 -. The Ref. Voltage is generated by the internal circuit [Band gap reference] -. It needs to attach an external power TR [* AUK PNP Power TR : STA353 *] -. The output voltage of the regulator is calculated depend on R1 and R2’s values. Vout = (1+ R1/R2) × 1.25 3.3V [R1: 16.5K / R2 : 10K] 2.5V [R1: 10K / R2 : 10K] KSD-I7A002-003 SEPT., 2010 REV. 03 6 S3052 3. Bias & Mute Circuit Focus, Tracking, Sled Spindle Con. Current Bias Mute R1 R3 R2 R4 Bias pin (pin 27) should be pulled up to more than 1.2V. In case the bias pin’s voltage is pulled down below 1.2V (typ.), the output current is muted, also Mute pin is same as Bias pin. [Except Tray, Regulator, Comparator, those are only controlled by Vcc1. ] 4. Comparator Circuit VCC Pull up Resistor OPIN + VOLD+ External Circuit OPOUT Internal Circuit - R1 R2 The Comparator is construction of open collector with external pulled up Resister for observation status of spindle motor. KSD-I7A002-003 SEPT., 2010 REV. 03 7 S3052 5. BTL Driver Circuits [Focus, Tracking, Sled, Spindle] R4 R3 Va(+) VI-Converter Iconv Vin R1 Bias Level Shift + Vo(+) PAMP1 + + R2 Iconv(+) Iconv(-) R5 Va(-) R6 + - Vo(-) PAMP2 - Pref R7 BTL Driver Circuits are composed of VI-Converter, Level Shifter and Output power AMP. VI-Converter converts voltage of Vin into current [Iconv ] Iconv = (Vin – Bias ) / R1[10KΩ] [ Closed loop Voltage Gain Calculation ] Va(+) = (R2×Iconv ) + Pref Va(-) = (-R5×Iconv) + Pref Vo(+) = Va(+)×(1 + R4/R3 ) Vo(-) = Va(-)×( 1 + R7/R6 ) [ * R2 = R5 , R3 = R6, R4 = R7 * ] Focus, Tracking closed loop Voltage Gain [ R2 = 25KΩ, R3 = 10KΩ, R4 = 20KΩ ] Gain = 20 log [{ Vo(+) - Vo(-) } / (Vin - Bias) ] = 20 log [{ Va(+)×( 1 + R3/R4 ) - Va(-)×( 1 + R6/R7 ) } / ( Vin – Bias ) ] = 20 log [{(R2×Iconv ) + Pref }×( 1 + R4/R3 )]– [{(-R5×Iconv) + Pref }×( 1 + R7/R6 )] (Vin – Bias ) = 20 log [2×(25K/10K)×{1+(20K/10K)} ] = 23.5 [dB] Sled closed loop Voltage Gain [R2 = 25KΩ, R3 = 10KΩ, R4 = 10KΩ ] Gain = 20 log [2× (25K/10K)×{1+(10K/10K)} ] = 20 [dB] Spindle closed loop Voltage Gain [R2 = 15KΩ, R3 = 10KΩ, R4 = 10KΩ] Gain = 20 log [2× (25K/10K)×{1+(10K/10K)} ] = 15.5 [dB] KSD-I7A002-003 SEPT., 2010 REV. 03 8 S3052 6] Tray driver logic input Speed Control Driver 1 R2 R1 VCTL FWD R3 R5 REV Driver 2 + VOTR(+) VOTR(-) R4 R6 Switching Logic 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 Input circuit of pin6 [FWD] and pin7 [REV] is designed to avoid simultaneous activation of upper and lower output power TR. however, in order to improve reliability, apply motor forward/reverse input once through open mode. We recommend that the time period of open state is longer than 10msec. “H” side output voltage on output voltage [VOL+, VOL-] varies depending on output control terminal for tray. [pin21]“H” side output voltage is set three times (9.2dB typ.) VTCL [pin21], and “L” side output voltage is equal to output saturation voltage. KSD-I7A002-003 SEPT., 2010 REV. 03 9 S3052 Characteristic Diagrams Fig. 1 VCC - IQC Fig. 2 Temperature - IQC Fig. 3 VOM - VCC Fig.4 VOM - VCC Ω Ω Fig. 5 VOM - VCC Fig.6 OP VIN – OP VO Ω KSD-I7A002-003 SEPT., 2010 REV. 03 10 S3052 ◈ Application Circuit SERVO U-COM Tracking Vcenter Focus MUTE FWD Sled REV Spindle Tray voltage control 0.1uF 5V 5V to VCC MOCTL 4.7K Focus coil 1M M 28 27 26 10K 25 24 23 22 GND PGND 21 20 19 Vcc2 18 17 16 15 MUTE 10K 15K 25K +- -+ 17.6K 8K Spindle Driver(4X) Actuator Driver(6X) Thermal Shut down 25K 10K ++- 10K 10K 10K 1 2 10K 16.4K ADJ 2.5V REGOUT 5V ADJ 3.3V REGOUT 47uF 0.1uF 47uF SEPT., 2010 REV. 03 +- Vcc3 Vcc2 Vcc1 +25K Spindle Driver(4X) Pre-DRV PGND Vcc1 Actuator Driver(6X) TRAY DRIVER 3 4 5 6 7 8 12V 9 M 10 11 M 12 13 14 Focus coil KSD-I7A002-003 11 S3052 ◈ Testing Circuit 5V DCMOT MOCTL V23 V19 8 12 V28 V27 V26 4.7K 1M OPEN 28 27 26 10K 25 16.4K 24 23 22 GND PGND 21 20 19 Vcc2 18 17 16 15 MUTE 10K 15K 25K +- -+ 17.6K 8K Spindle Driver(4X) Actuator Driver(6X) Thermal Shut down 25K 10K ++- 10K 1 2 10K V1 ADJ 2.5V REGOUT 10K 47uF 16.4K 5V ADJ 3.3V REGOUT 47uF 10K SEPT., 2010 REV. 03 +- Vcc3 Vcc2 Vcc1 +25K Spindle Driver(4X) Pre-DRV PGND Vcc1 Actuator Driver(6X) T RAY DRIVER 3 4 5 6 7 8 9 10 11 12 13 14 V4 V6 V7 V8 45 20 12 KSD-I7A002-003 12 S3052 ◈ Outline Dimension SSOPH-28N With Heat-sink KSD-I7A002-003 SEPT., 2010 REV. 03 13 S3052 The AUK Corp. products are intended for the use as components in general electronic equipment (Office and communication equipment, measuring equipment, home appliance, etc.). Please make sure that you consult with us before you use these AUK Corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, transportation, combustion control, all types of safety device, etc.). AUK Corp. cannot accept liability to any damage which may occur in case these AUK Corp. products were used in the mentioned equipments without prior consultation with AUK Corp.. Specifications mentioned in this publication are subject to change without notice. KSD-I7A002-003 SEPT., 2010 REV. 03 14