www.fairchildsemi.com FAN8038B(KA3038) 4-Channel Motor Drive IC Features Description • • • • • • • • • FAN8038B is monolithic IC for portable CD player. 4-CH H-Bridge Driver Built-in DC/DC Converter Controller Circuit Built-in Reset Circuit Built-in Battery Charging Circuit Built-in Voltage Drop Detector Built-in Thermal Shutdown Circuit Built-in General OP-AMP Low Power Consumption Built-in Power Controller Circuit Typical application • • • • Portable Compact Disk Player (CDP) Portable Mini Disk Player (MD) Disc-Man Other Potable Compact Disk Media 44-QFP-1010B Ordering Information Device Package FAN8038B 44-QFP-1010B Operating Temp. -35°C ~ +85°C Rev. 1.0.3 ©2002 Fairchild Semiconductor Corporation FAN8038B(KA3038) Pin Assignments 2 FIL SGND EMPSET ADPVCC 44 43 42 41 STOP START CLKIN 40 39 38 PWM DVCC EMP 37 36 35 RST 34 OVP 1 33 CHGSET BATT 2 32 DO1(-) RSTOUT 3 31 DO1(+) DEDSET 4 30 DO2(-) BDSW 5 29 DO2(+) ERRO 6 ERRI 7 27 DO3(+) SCP 8 26 DO3(-) COSC 9 25 DO4(+) NC 10 24 DO4(-) OPIN(-) 11 23 BRAKE FAN8038B 12 13 14 15 16 17 18 SVCC1 OPOUT OPIN(+) SVCC2 VREF DI3 DI4 19 MUTE34 20 DI2 28 PGND 21 22 MUTE2 DI1 FAN8038B(KA3038) Pin Definitions Pin Number Pin Name 1 OVP Pin Function Description Battery Power Supply Mode 2 BATT 3 4 RSTOUT DEDSET Battery Power Supply 5 BDSW Booster Transistor Drive 6 ERRO Error Amp Output 7 8 ERRI SCP Error Amp Input Short Circuit Protection Setting Triangular Wave Output RSTOUT Detection Output DEDSET Time Setting 9 COSC 10 N.C 11 12 OPIN(-) SVCC1 OP-AMP Negative Input Control Circuit Power Supply 13 OPOUT OP-AMP Output 14 OPIN(+) OP-AMP Positive Input 15 SVCC2 Pre-Drive Power Supply 16 17 VREF DI3 Reference Voltage CH3 Control Signal Input No Connection 18 DI4 19 MUTE34 CH3, 4 Mute CH4 Control Signal Input 20 21 DI2 MUTE2 CH2 Control Signal Input CH2 Mute 22 DI1 CH1 Control Signal Input 23 BRAKE CH1 Brake 24 25 DO4(-) DO4(+) CH4 Negative Output CH4 Positive Output 26 DO3(-) CH3 Negative Output 27 DO3(+) CH3 Positive Output 28 29 PGND DO2(+) Power Unit Power Ground CH2 Positive Output 30 DO2(-) CH2 Negative Output 31 DO1(+) CH1 Positive Output 32 33 DO1(-) CHGSET CH1 Negative Output Charge Current Setting 34 RST RSTOUT Inverting Output 35 EMP Empty Detection Output 36 37 DVCC PWM H-Bridge Power Supply PWM Transistor Drive 38 CLKIN External Clock Input 39 START Boost DC/DC Converter Starting 40 41 STOP ADPVCC Boost DC/DC Converter Off Charging Circuit Power Supply 42 EMPSET Empty Dection Level Converting 43 SGND 44 FIL Signal Ground PWM Phase Compensation 3 FAN8038B(KA3038) Internal Block Diagram FIL SGND 44 43 EMPSET ADPVCC 42 41 STOP START CLKIN PWM DVCC EMP RST 40 39 38 37 36 35 34 OVP 1 BATT 2 STARTER ERRO 6 32 DO1(-) 31 DO1(+) 30 DO2(-) 29 DO2(+) 28 PGND × 2 × 2 × 2 × 2 × 2 27 DO3(+) × 2 26 DO3(-) × 2 25 DO4(+) × 2 24 DO4(-) 23 BRAKE DEDSET 4 5 CHGSET MAXIMUM DETECTOIN RSTOUT 3 BDSW 33 ERRI 7 SCP 8 OVER VOLTAGE PROTECTION COSC 9 NC 10 TRIANGLE WAVE NC BRAKE SIGNAL VCC OPIN(-) 11 MUTE34 12 SVCC1 4 13 14 OPOUT OPIN(+) 15 16 17 18 19 SVCC2 VREF DI3 DI4 MUTE34 MUTE2 20 DI2 21 22 MUTE2 DI1 FAN8038B(KA3038) Absolute Maximum Ratings (Ta = 25°C) Parameter Symbol Value Unit VCC 13.2 V Maximum Output Current IO 500 mA Power Dissipation PD 1.0 W Operating Temperature TOPR -35 ~ +85 °C Stroage Temperature TSTG -55 ~ +150 °C Maximum Supply Voltage Recommended Operating Conditions (Ta = 25°C) Parameter Symbol Min. Typ. Max. Unit Charging Circuit Power Supply Voltage ADPVCC 3.0 4.5 8.0 V Power Supply Voltage BATT 1.5 2.4 8.0 V Control Circuit Power Supply Voltage SVCC 2.7 3.2 5.5 V PRE-Driver VCC SVCC2 2.7 3.2 5.5 V Output Voltage VM - PWM BATT V Operating Temperature Ta -10 25 70 °C 5 FAN8038B(KA3038) Electrical characteristics (Ta=25°C, BATT=2.4V, SVCC1=SVCC2=3.2V, VREF=1.6V, ADPVCC=0V, fCLKIN=88.2kHz) Parameter Symbol Conditions Min. Typ. Max. Unit BATT=10.5V,SVCC1, 2=VREF=0V - - 5 µA COMMON SECTION BATT Stand-by Current IST BATT Supply Current (No Load) IBATT DVCC=0.45V, MUTE34=3.2V - 2.5 3.5 mA SVCC Supply Current (No Load) ISVCC1 DVCC=0.45V, MUTE34=3.2V, ERRI=0V - 3.0 3.5 mA SVCC2 Supply Current (No Load) ISVCC2 DVCC=0.45V, MUTE34=3.2V - 3.5 5.0 mA IADPVCC ADPVCC=4.5V, ROUT=OPEN - 0.2 1.0 mA GVC134 GVC2 - 12 21.5 14 23.5 16 24.5 dB ∆GVC - -2 0 2 dB 9 6 11 7.5 13 9 KΩ ADPVCC Supply Current (No Load) H-DRIVE PART Voltage Gain CH1, 3, 4 CH2 Gain Error By Polarity Input pin Resistance CH1, 3, 4 CH2 IN=1.7 & 1.8V Maximum Output Voltage VOUT RL=8Ω, DVCC=BATT=4V, IN=0 ~ 3.2V 1.9 2.1 - V Saturation Voltage (Lower) VSAT1 IO= -300mA, IN=0 & 3.2V - 240 400 mV Saturation Voltage (Upper) VSAT2 IO=300mA, IN=0 & 3.2V Input offset Voltage Output Offset Voltage CH1, 3, 4 CH2 DEAD Zone - VIO VOO134 VOO2 VREF=IN=1.6V VDB - - 240 400 mV -8 0 8 mV -70 -130 0 0 70 130 mV -20 0 20 mV Brake1 On Voltage VM1ON DI1=1.8V 2.0 - - V Brake1 Off Voltage VM1OFF DI1=1.8V - - 0.8 V MUTE2 On Voltage VM2ON DI2=1.8V 2.0 - - V MUTE2 Off Voltage VM2OFF DI2=1.8V - - 0.8 V MUTE34 On Voltage VM34ON DI3=DI4=1.8V - - 0.8 V MUTE34 Off Voltage VM34OFF DI3=DI4=1.8V 2.0 - - V VREF On Voltage VREFON INn=1.8V(N=1, 2, 3, 4) 1.2 - - V VREF Off Voltage VREFOFF INn=1.8V(N=1, 2, 3, 4) - - 0.8 V Brake Current 4 7 10 mA BRAKE1 Brake Current *Granteed Design Value 6 RDI134 RDI2 IBRAKE FAN8038B(KA3038) Electrical Characteristics (Continued) Parameter Symbol Conditions Min. Typ. Max. Unit 10 13 17 mA 0.35 0.45 0.55 V - 0 5 µA 1/60 1/50 1/40 1/kΩ 3.05 3.20 3.35 V PWM POWER SUPPLY DRIVING PWM Sink Current IPWM DI1=2.1V *DVCC Level Shift Voltage VSHIF DI1=1.8V, DVCC-OUT1F DVCC Leak Current *PWM Amp Transfer Gain IDLK GPWM DVCC=9V, SVCC1,2=BATT=0V DI1=1.8V, DVCC=1.2V ~ 1.4V DC/DC CONVERTER ERROR AMP SVCC1 Pin Threshold Voltage VS1TH ERRO Pin Output Voltage H VEOH ERRI=0.7V, IO = -100µA 1.4 1.6 - V ERRO Pin Output Voltage L VEOL ERRI=1.3V, IO = 100µA - - 0.3 V SCP Pin Voltage VSCP ERRI=1.3V - 0 0.1 V SCP Pin Current 1 ISCP1 ERRI=0.7V 6 10 16 µA SCP Pin Current 2 ISCP2 ERRI=1.3V, OFF=0V 12 20 32 µA SCP Pin Current 3 ISCP3 ERRI=1.3V, BATT=9.5V 12 20 32 µA RSCP - 175 220 265 kΩ ERRI=0.7V, COSC=470PF 1.10 1.20 1.30 V OVP Voltage 9.5 10 10.5 V - SHORT CIRCUIT PROTECTION *SCP Pin Impedance SCP Pin Threshold Voltage Over Voltage Protection Detect VSCPTH VOVP TRANSISTOR DRIVING BDSW Pin Output Voltage 1H VSW1H BATT=COSC=1.5V =SVCC2=0V, 10mA 0.78 0.98 1.13 V BDSW Pin Output Voltage 2H VSW2H COSC=0V, IO = -10mA, ERRI=0.7V SCP=0V 1.0 1.5 - V BDSW Pin Output Voltage 2L VSW2L CT=2V, IO=1-mA - 0.3 0.45 V 80 95 kHz fSW1 COSC=470pF, =SVCC2=0V 65 SW Pin Oscillating Reequency 2 fSW2 COSC=470pF, CLKIN=0V 60 70 82 kHz BDSW Pin Oscillating Reequency 3 fSW3 COSC=470pF - 88.2 - kHz *BDSW Pin Minimum Pulse Width TSWMIN COSC=470pF, ERRO=0.5 → 0.7V 0.01 - 0.6 µs Pulse Duty Start DSW1 COSC=470PF, SVSS1,SVCC2=0V 40 50 60 % MAX. Pulse Duty at Self-Running DSW2 COSC=470pF, ERR0=0.8V, CLKIN=0V 50 60 70 % MAX. Pulse Duty at CLKIN Synchronization DSW3 ERR0=0.8V, COSC=470pF 45 55 65 % BDSW Pin Oscillating Reequency1 *Granteed Design Value 7 FAN8038B(KA3038) Electrical Characteristics (Continued) Parameter Symbol Conditions Min. Typ. Max. Unit *DEDSET Pin Impedance RDEDSET - 52 65 78 kΩ DEDSET Pin Output Voltage VDEDSET - 0.78 0.88 0.98 V ERRI=1.3V 2.0 - - V OFF=0V 75 95 115 µA 1.3 - - V - - 2.1 V 13 16 19 µA - 2.0 - - V - - - 0.8 V - - 10 µA DEAD TIME INTERFACE STOP Pin Threshold Voltage STOP Pin Bias Current VSTOPTH ISTOP START Pin On Threshold Voltage VSTATH1 SVCC1,SVCC2=0V, COSC=2V START Pin Off Threshold Voltage VSTATH2 SVCC1,SVCC2=0V, COSC=2V START Pin Bias Current CLKIN Pin Threshold Voltage H CLKIN Pin Threshold Voltage L CLKIN Pin Bias Current ISTART START=0V VCLKINTH H VCLKINTH L ICLKIN CLKIN=3.2V VSSV SVCC1,SVCC2=0V → 3.2V START=0V 2.3 2.5 2.7 V START=0V 130 200 300 mV START CURCUIT Starter Switching Voltage Starter Switching Hysteresis Width VSSHS VDIS - 1.63 1.83 2.03 V *SVCC1 RESET Threshold Voltage Ratio RRSTOTH - 85 90 95 % RESET Detection Hysteresis Width VRSTHS - 25 50 100 mV RSTOUT Pin Output Voltage VRSTO - - 0.5 V RSTOUT Pin Pull Up Resistance RRSTO Discharge Release Voltage RESET CIRCUIT - RST Pin Output Voltage 1 VRST1 IO= -1mA, SVCC1,SVCC2=2.8V RST Pin Output Voltage 2 VRST2 IO= -1mA, SVCC1,SVCC2=0V *RST Pin Pull Up Resistance RRST *Granteed Design Value 8 IO=1mA, SVCC1,SVCC2=2.8V - 72 90 108 kΩ 2.0 - 2.4 V 2.0 - 2.4 V 77 95 113 kΩ FAN8038B(KA3038) Electrical Characteristics (Continued) Parameter Symbol Conditions Min. Typ. Max. Unit OP-AMP IBIAS IN(+)=1.6V - - 300 nA Input Offset Voltage VOFOP IN(+)=1.6V -5.5 0 5.5 mV High Level Output Voltage VOHOP RL=OPEN 2.8 - - V Low Level Output Voltage VOLOP RL=OPEN - - 0.2 V Input Bias Current Output Drive Current (Source) VSOURCE 50Ω GND - -6.5 -3.0 mA Output Drive Current (Sink) VSINK 50Ω SVCC 0.4 0.7 - mA *Open Loop Voltage Gain GVO VIN= -75dB, F=1kHz - 70 - dB - - 0.5 - V/µs *Slew Rate SR BATTERY CHARGING CURCUIT CHGSET Pin Bias Voltage VCHGSET ADPVCC=4.5V, CHGSET=1.8kΩ 0.71 0.81 0.91 V *CHGSET Pin Output Resistance RCHGSET ADPVCC=4.5V 0.75 0.95 1.20 kΩ EMPSET Pin Leak Current 1 IEMPSET ADPVCC=4.5V, CHGSET=OPEN - - 1.0 µA EMPSET Pin Leak Current 2 IEMPSET ADPVCC = 0.6V, CHGSET = 1.8kΩ - - 1.0 µA EMPSET Pin Saturation Voltage VEMPSET ADPVCC = 4.5V, IO = 300mA, CHGSET = 0Ω - 0.45 1.0 V 2.3 V EMPTY DETECTION EMP Detection Voltge 1 VEMPT1 VEMPSET = 0V 2.1 2.2 EMP Detection Voltge 2 VEMPT2 IEMPSET = -2µA 1.7 1.8 1.9 V EMP Detection Hysteresis Voltage 1 VEMHS1 VEMPSET = 0V 25 50 100 mV EMP Detection Hysteresis Voltage 2 VEMHS2 IEMPSET = -2µA 25 50 100 mV IO = 1mA, OVP = 1V - - 0.5 V OVP = 2.4V - - 1.0 µA 17 23 27 kΩ - - 1.0 V EMP Pin Output Voltage EMP Pin Output Leak Current *OVP Pin Input Resistance OVP Pin Leak Current VEMP IEMPLK ROVP IOVPLK VEMPSET = 0V SVCC1 = SVCC2 = 0V, OVP = 4.5V EMP_SET Pin Detection Voltage VEMPSET VEMPSET = BATT-EMPSET, OVP = 2V 1.5 - - V EMP_SET Pin Detection Current IEMPSET EMPSET -2 - - µA *Granteed Design Value 9 FAN8038B(KA3038) Application Information 1. Mute Function • When The BRAKE Pin is low is normal opration (high is CH1 mute on). • When The Mute2 Pin is low is normal opration (high is CH2 mute on). • When The Mute34 Pin is high is normal opration (low is CH3,4 mute on). 2. Vref Drop Mute (Figure 1) • When the Voltage of the mute pin is above 1V, the mute circuit is stopped and the output circuit is. VCC VCC CH Bias Block 2 CH Bias Block VREF Hysteresis Figure 1. VREF Drop MUTE Circuit Q1 1 Figure 2. TSD Circuit ircuit 3. Thermal Shutdown(Figure 2) • If the chip temperature rises above 150°C, then the thermal shutdown (TSD) circuit is activated and the output circuit will be mute. 4. H-bridge Driver (4-Channels) Driver input resistance is 10kΩ of CH1, CH3, CH4 and input resistance of CH2 is 7.5kΩ. Driver gain can obtain under -mentioned CH1, 3, 4: 55K GV = 20 log -------------------11K + R CH2 110K GV = 20log ---------------------7.5K + R R is External resistance. 10 FAN8038B(KA3038) 5. Switching Regulated Power Supply Drive • This circuit detects a maximum output value of 4CH drivers and then generates PWM Signal. • External Component is PNP-Tr, Coil, Schottky Diodeand Capacitor . BUCK CON. HVCC HVCC AMP OSC OUTPUT LEVEL DET. Figure 1. Switching Regulated Power Supply 6. DC/DC Converter Control Circuit • Booster circuit needs External component. and the voltage() is defined as follows. R1 ⋅ R3 R2 ⋅ R4 ---------------------- + ---------------------R1 + R3 R2 + R4 SVCC1 = 1.267 × --------------------------------------------------R2 ⋅ R4--------------------R2 + R4 R1 = Resistor1 R2 = Resistor2 R3 = 30KΩ R4 = 30.5KΩ 12 R1 30k 7 30.5k R2 Figure 2. Output Voltage 11 FAN8038B(KA3038) • Short Circuit Protection function when GND and is short, ERRI become LOW and ERRO HIGH and it makes capacitor charging. fanally AMP3 is OFF.(figure 5) BATT SVCC 1 AMP4 30K SCP AMP5 1.267V AMP1 AMP3 30.5K 1.267V COSC DEDSET Figure 3. DC/DC Converter Control Circuit Switching off time depen on a capacitor of the SCP . and the equation is as follow. V TH t = C SCP × -----------I SCP ( V TH = 1.25V, I SPRT = 10µA ) • Max Duty can be controlled resistor. the equation is as follow. t = C DEDSET × R ( R = 65KΩ ) • Capacitor of the SCP terminal can control disable switiching time and it can be calculated by as follow equation. V TH t = C SCP × --------------I STOP ( V TH = 1.25V, I OFF = 20µA ) • Over Voltage Protection BATT Voltage is over 9.7V charging SCP terminal Capacitor, it reach to VTH SW terminal signal is OFF the equation is as follow V TH t = C SCP × ---------I HV ( V TH = 1.25V, I HV = 20µA ) • If Output Voltage of RSTOUT Circuit DC/DC Conver is over than 90%, RSTOUT terminal turn to HIGH and Hysteresis is 50mV. and RSTOUT stste is ON. 7. Empty Detecting Circuit. EMPSET Detect Voltage Hysteresis Mode LOW 2.2V 50mV Battery Mode HIGH-Z 1.8V 50mV Adapter Mode 8. Battery Charging Circuit • the battery charger circuit is separated from any other block . • TSD operate at 150°C. Hysteresis is 30°C 12 FAN8038B(KA3038) Typical Performance Characteristics Temp vs V ovp Temp vs V S1TH 3.20 10.50 3.18 3.15 10.25 3.13 3.10 V ovp10.00 [V ] 3.08 3.05 9.75 V S1TH [V ] -35 -20 -5 10 25 40 55 70 85 9.50 -35 -20 -5 Temp[℃] 25 40 55 70 85 Temp[℃] BATT vs IBATT BATT vs IST IST [mA] 10 0.1 4 0.05 3 0 IBATT 2 [mA] -0.05 1 -0.1 0 1.5 2.5 3.5 4.5 5.5 6.5 1.5 7.5 2.5 3.5 4.5 5.5 6.5 7.5 BATT[V ] BATT[V ] Temp vs ISINK Temp vs V EMPSET 1 1.8 0.9 1.6 0.8 V EMPSET 1.4 [V ] ISINK 0.7 [mA] 0.6 1.2 0.5 1 -35 -20 -5 10 25 40 Temp[℃] 55 70 85 0.4 -35 -20 -5 10 25 40 55 70 85 Temp[℃] 13 FAN8038B(KA3038) Application Circuits ADT VCC 100k 102 ON TO MICOM 33uF 220uF OFF 47Ω 44 43 42 41 40 39 38 37 0.1uF 36 35 34 CHG SETTING RES 1 33 2 32 STARTER MAXIMUM DETECTOIN TO MICOM M 3 31 SLED MOTOR ×2 104 220uF 4 30 ×2 DC/DC CONVERTER 220uF 5 8.2k M 29 ×2 6 28 ×2 7 SPINDLE MOTOR ×2 27 ×2 26 223 8 OVER VOLTAGE PROTECTION 1uF TRK ACTUATOR 9 ` 470p 10 25 ×2 24 0.1uF TRIANGLE WAVE NC ×2 FOC ACTUATOR BRAKE1 SIGNAL VCC 11 MUTE34 13 14 15 16 17 18 19 20 SERVO 14 21 FROM MICOM 12 FROM MICOM Filter MUTE2 22 23 FROM MICOM FAN8038B(KA3038) 15 FAN8038B(KA3038) DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com 9/6/02 0.0m 001 Stock#DSxxxxxxxx 2002 Fairchild Semiconductor Corporation