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FAN8038B(KA3038)
4-Channel Motor Drive IC
Features
* * * * * * * * * 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
Description
FAN8038B is monolithic IC for portable CD player.
44-QFP-1010B
Typical application
* * * * Portable Compact Disk Player (CDP) Portable Mini Disk Player (MD) Disc-Man Other Potable Compact Disk Media
Ordering Information
Device Package Operating Temp. -35C ~ +85C FAN8038B 44-QFP-1010B
Rev. 1.0.3
(c)2002 Fairchild Semiconductor Corporation
FAN8038B(KA3038)
Pin Assignments
FIL SGND EMPSET ADPVCC STOP START CLKIN PWM DVCC EMP RST
44
43
42
41
40
39
38
37
36
35
34
OVP BATT RSTOUT DEDSET BDSW ERRO ERRI SCP COSC
1 2 3 4 5 6 7 8 9
33 32 31 30
CHGSET DO1(-) DO1(+) DO2(-) DO2(+)
FAN8038B
29
28 PGND 27 26 25 24 23 DO3(+) DO3(-) DO4(+) DO4(-) BRAKE
NC 10 OPIN(-) 11
12
SVCC1
13
OPOUT
14
OPIN(+)
15
SVCC2
16
VREF
17
DI3
18
DI4
19
MUTE34
20
DI2
21
MUTE2
22
DI1
2
FAN8038B(KA3038)
Pin Definitions
Pin Number 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 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Pin Name OVP BATT RSTOUT DEDSET BDSW ERRO ERRI SCP COSC N.C OPIN(-) SVCC1 OPOUT OPIN(+) SVCC2 VREF DI3 DI4 MUTE34 DI2 MUTE2 DI1 BRAKE DO4(-) DO4(+) DO3(-) DO3(+) PGND DO2(+) DO2(-) DO1(+) DO1(-) CHGSET RST EMP DVCC PWM CLKIN START STOP ADPVCC EMPSET SGND FIL Battery Power Supply RSTOUT Detection Output DEDSET Time Setting Booster Transistor Drive Error Amp Output Error Amp Input Short Circuit Protection Setting Triangular Wave Output No Connection OP-AMP Negative Input Control Circuit Power Supply OP-AMP Output OP-AMP Positive Input Pre-Drive Power Supply Reference Voltage CH3 Control Signal Input CH4 Control Signal Input CH3, 4 Mute CH2 Control Signal Input CH2 Mute CH1 Control Signal Input CH1 Brake CH4 Negative Output CH4 Positive Output CH3 Negative Output CH3 Positive Output Power Unit Power Ground CH2 Positive Output CH2 Negative Output CH1 Positive Output CH1 Negative Output Charge Current Setting RSTOUT Inverting Output Empty Detection Output H-Bridge Power Supply PWM Transistor Drive External Clock Input Boost DC/DC Converter Starting Boost DC/DC Converter Off Charging Circuit Power Supply Empty Dection Level Converting Signal Ground PWM Phase Compensation Pin Function Description Battery Power Supply Mode
3
FAN8038B(KA3038)
Internal Block Diagram
FIL SGND EMPSET ADPVCC STOP START CLKIN PWM DVCC EMP RST
44
43
42
41
40
39
38
37
36
35
34
OVP 1 BATT 2 RSTOUT 3
x
33 32
MAXIMUM DETECTOIN
CHGSET DO1(-) DO1(+) DO2(-) DO2(+) PGND DO3(+) DO3(-) DO4(+) DO4(-) BRAKE
STARTER
31
2
DEDSET 4
x
30
2
BDSW ERRO
5
x
2
29 28 27 26 25 24
BRAKE
6
x
2
ERRI 7 SCP 8
OVER VOLTAGE PROTECTION
x
2
x
2
COSC
9
NC
x
2
NC 10 OPIN(-) 11
TRIANGLE WAVE SIGNAL VCC
x
2
23
MUTE34
MUTE2
12
SVCC1
13
14
15
SVCC2
16
VREF
17
DI3
18
DI4
19
MUTE34
20
DI2
21
MUTE2
22
DI1
OPOUT OPIN(+)
4
FAN8038B(KA3038)
Absolute Maximum Ratings (Ta = 25C)
Parameter Maximum Supply Voltage Maximum Output Current Power Dissipation Operating Temperature Stroage Temperature Symbol VCC IO PD TOPR TSTG Value 13.2 500 1.0 -35 ~ +85 -55 ~ +150 Unit V mA W C C
Recommended Operating Conditions (Ta = 25C)
Parameter Charging Circuit Power Supply Voltage Power Supply Voltage Control Circuit Power Supply Voltage PRE-Driver VCC Output Voltage Operating Temperature Symbol ADPVCC BATT SVCC SVCC2 VM Ta Min. 3.0 1.5 2.7 2.7 -10 Typ. 4.5 2.4 3.2 3.2 PWM 25 Max. 8.0 8.0 5.5 5.5 BATT 70 Unit V V V V V C
5
FAN8038B(KA3038)
Electrical characteristics
(Ta=25C, BATT=2.4V, SVCC1=SVCC2=3.2V, VREF=1.6V, ADPVCC=0V, fCLKIN=88.2kHz) Parameter COMMON SECTION BATT Stand-by Current BATT Supply Current (No Load) SVCC Supply Current (No Load) SVCC2 Supply Current (No Load) 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 Maximum Output Voltage Saturation Voltage (Lower) Saturation Voltage (Upper) Input offset Voltage Output Offset Voltage CH1, 3, 4 CH2 DEAD Zone Brake1 On Voltage Brake1 Off Voltage MUTE2 On Voltage MUTE2 Off Voltage MUTE34 On Voltage MUTE34 Off Voltage VREF On Voltage VREF Off Voltage BRAKE1 Brake Current *Granteed Design Value GVC134 GVC2 GVC RDI134 RDI2 VOUT VSAT1 VSAT2 VIO VOO134 VOO2 VDB VM1ON VM1OFF VM2ON VM2OFF VM34ON VM34OFF VREFON VREFOFF IBRAKE DI1=1.8V DI1=1.8V DI2=1.8V DI2=1.8V DI3=DI4=1.8V DI3=DI4=1.8V INn=1.8V(N=1, 2, 3, 4) INn=1.8V(N=1, 2, 3, 4) Brake Current IN=1.7 & 1.8V RL=8, DVCC=BATT=4V, IN=0 ~ 3.2V IO= -300mA, IN=0 & 3.2V IO=300mA, IN=0 & 3.2V VREF=IN=1.6V 12 21.5 -2 9 6 1.9 -8 -70 -130 -20 2.0 2.0 2.0 1.2 4 14 23.5 0 11 7.5 2.1 240 240 0 0 0 0 7 16 24.5 2 13 9 400 400 8 70 130 20 0.8 0.8 0.8 0.8 10 dB dB K V mV mV mV mV mV V V V V V V V V mA IST IBATT ISVCC1 ISVCC2 IADPVCC BATT=10.5V,SVCC1, 2=VREF=0V DVCC=0.45V, MUTE34=3.2V DVCC=0.45V, MUTE34=3.2V, ERRI=0V DVCC=0.45V, MUTE34=3.2V ADPVCC=4.5V, ROUT=OPEN 2.5 3.0 3.5 0.2 5 3.5 3.5 5.0 1.0 A mA mA mA mA Symbol Conditions Min. Typ. Max. Unit
6
FAN8038B(KA3038)
Electrical Characteristics (Continued)
Parameter PWM POWER SUPPLY DRIVING PWM Sink Current *DVCC Level Shift Voltage DVCC Leak Current *PWM Amp Transfer Gain DC/DC CONVERTER ERROR AMP SVCC1 Pin Threshold Voltage ERRO Pin Output Voltage H ERRO Pin Output Voltage L SHORT CIRCUIT PROTECTION SCP Pin Voltage SCP Pin Current 1 SCP Pin Current 2 SCP Pin Current 3 *SCP Pin Impedance SCP Pin Threshold Voltage Over Voltage Protection Detect TRANSISTOR DRIVING BDSW Pin Output Voltage 1H BDSW Pin Output Voltage 2H BDSW Pin Output Voltage 2L BDSW Pin Oscillating Reequency1 SW Pin Oscillating Reequency 2 BDSW Pin Oscillating Reequency 3 *BDSW Pin Minimum Pulse Width Pulse Duty Start MAX. Pulse Duty at Self-Running MAX. Pulse Duty at CLKIN Synchronization *Granteed Design Value VSW1H VSW2H VSW2L fSW1 fSW2 fSW3 TSWMIN DSW1 DSW2 DSW3 BATT=COSC=1.5V =SVCC2=0V, 10mA COSC=0V, IO = -10mA, ERRI=0.7V SCP=0V CT=2V, IO=1-mA COSC=470pF, =SVCC2=0V COSC=470pF, CLKIN=0V COSC=470pF COSC=470pF, ERRO=0.5 0.7V COSC=470PF, SVSS1,SVCC2=0V COSC=470pF, ERR0=0.8V, CLKIN=0V ERR0=0.8V, COSC=470pF 0.78 1.0 65 60 0.01 40 50 45 0.98 1.5 0.3 80 70 88.2 50 60 55 1.13 0.45 95 82 0.6 60 70 65 V V V kHz kHz kHz s % % % VSCP ISCP1 ISCP2 ISCP3 RSCP VSCPTH VOVP ERRI=1.3V ERRI=0.7V ERRI=1.3V, OFF=0V ERRI=1.3V, BATT=9.5V ERRI=0.7V, COSC=470PF OVP Voltage 6 12 12 175 1.10 9.5 0 10 20 20 220 1.20 10 0.1 16 32 32 265 1.30 10.5 V A A A k V V VS1TH VEOH VEOL ERRI=0.7V, IO = -100A ERRI=1.3V, IO = 100A 3.05 1.4 3.20 1.6 3.35 0.3 V V V IPWM VSHIF IDLK GPWM DI1=2.1V DI1=1.8V, DVCC-OUT1F DVCC=9V, SVCC1,2=BATT=0V DI1=1.8V, DVCC=1.2V ~ 1.4V 10 0.35 1/60 13 0.45 0 1/50 17 0.55 5 1/40 mA V A 1/k Symbol Conditions Min. Typ. Max. Unit
7
FAN8038B(KA3038)
Electrical Characteristics (Continued)
Parameter DEAD TIME *DEDSET Pin Impedance DEDSET Pin Output Voltage INTERFACE STOP Pin Threshold Voltage STOP Pin Bias Current START Pin On Threshold Voltage START Pin Off Threshold Voltage START Pin Bias Current CLKIN Pin Threshold Voltage H CLKIN Pin Threshold Voltage L CLKIN Pin Bias Current START CURCUIT Starter Switching Voltage Starter Switching Hysteresis Width Discharge Release Voltage RESET CIRCUIT *SVCC1 RESET Threshold Voltage Ratio RESET Detection Hysteresis Width RSTOUT Pin Output Voltage RSTOUT Pin Pull Up Resistance RST Pin Output Voltage 1 RST Pin Output Voltage 2 *RST Pin Pull Up Resistance *Granteed Design Value RRSTOTH VRSTHS VRSTO RRSTO VRST1 VRST2 RRST IO=1mA, SVCC1,SVCC2=2.8V IO= -1mA, SVCC1,SVCC2=2.8V IO= -1mA, SVCC1,SVCC2=0V 85 25 72 2.0 2.0 77 90 50 90 95 95 100 0.5 108 2.4 2.4 113 % mV V k V V k VSSV VSSHS VDIS SVCC1,SVCC2=0V 3.2V START=0V START=0V 2.3 130 1.63 2.5 200 1.83 2.7 300 2.03 V mV V VSTOPTH ISTOP VSTATH1 VSTATH2 ISTART VCLKINTH
H
Symbol RDEDSET VDEDSET
Conditions ERRI=1.3V OFF=0V SVCC1,SVCC2=0V, COSC=2V SVCC1,SVCC2=0V, COSC=2V START=0V CLKIN=3.2V
Min. 52 0.78 2.0 75 1.3 13 2.0 -
Typ. 65 0.88 95 16 -
Max. 78 0.98 115 2.1 19 0.8 10
Unit k V V A V V A V V A
VCLKINTH
L
ICLKIN
8
FAN8038B(KA3038)
Electrical Characteristics (Continued)
Parameter OP-AMP Input Bias Current Input Offset Voltage High Level Output Voltage Low Level Output Voltage Output Drive Current (Source) Output Drive Current (Sink) *Open Loop Voltage Gain *Slew Rate BATTERY CHARGING CURCUIT CHGSET Pin Bias Voltage *CHGSET Pin Output Resistance EMPSET Pin Leak Current 1 EMPSET Pin Leak Current 2 EMPSET Pin Saturation Voltage EMPTY DETECTION EMP Detection Voltge 1 EMP Detection Voltge 2 EMP Detection Hysteresis Voltage 1 EMP Detection Hysteresis Voltage 2 EMP Pin Output Voltage EMP Pin Output Leak Current *OVP Pin Input Resistance OVP Pin Leak Current EMP_SET Pin Detection Voltage EMP_SET Pin Detection Current *Granteed Design Value VEMPT1 VEMPT2 VEMHS1 VEMHS2 VEMP IEMPLK ROVP IOVPLK VEMPSET IEMPSET VEMPSET = 0V IEMPSET = -2A VEMPSET = 0V IEMPSET = -2A IO = 1mA, OVP = 1V OVP = 2.4V VEMPSET = 0V SVCC1 = SVCC2 = 0V, OVP = 4.5V VEMPSET = BATT-EMPSET, OVP = 2V EMPSET 2.1 1.7 25 25 17 1.5 -2 2.2 1.8 50 50 23 2.3 1.9 100 100 0.5 1.0 27 1.0 V V mV mV V A k V V A VCHGSET RCHGSET IEMPSET IEMPSET VEMPSET ADPVCC=4.5V, CHGSET=1.8k ADPVCC=4.5V ADPVCC=4.5V, CHGSET=OPEN ADPVCC = 0.6V, CHGSET = 1.8k ADPVCC = 4.5V, IO = 300mA, CHGSET = 0 0.71 0.75 0.81 0.95 0.45 0.91 1.20 1.0 1.0 1.0 V k A A V IBIAS VOFOP VOHOP VOLOP VSOURCE VSINK GVO SR IN(+)=1.6V IN(+)=1.6V RL=OPEN RL=OPEN 50 GND 50 SVCC VIN= -75dB, F=1kHz -5.5 2.8 0.4 0 -6.5 0.7 70 0.5 300 5.5 0.2 -3.0 nA mV V V mA mA dB V/s Symbol Conditions Min. Typ. Max. Unit
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
Q1
1
Figure 1. VREF Drop MUTE Circuit
Figure 2. TSD Circuit ircuit
3. Thermal Shutdown(Figure 2)
* If the chip temperature rises above 150C, 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 10k of CH1, CH3, CH4 and input resistance of CH2 is 7.5k. Driver gain can obtain under -mentioned
CH1, 3, 4: CH2 55K GV = 20 log -------------------11K + R 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 x -------------------------------------------------R2 R4--------------------R2 + R4 R1 = Resistor1 R2 = Resistor2 R3 = 30K R4 = 30.5K
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
AMP5
SCP 1.267V
AMP1 AMP3
30.5K 1.267V DEDSET COSC
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 x ----------I SCP ( V TH = 1.25V, I SPRT = 10A )
* Max Duty can be controlled resistor. the equation is as follow.
t = C DEDSET x R ( R = 65K )
* Capacitor of the SCP terminal can control disable switiching time and it can be calculated by as follow equation.
V TH t = C SCP x -------------I STOP ( V TH = 1.25V, I OFF = 20A )
* 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 x ---------I HV ( V TH = 1.25V, I HV = 20A )
* 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 LOW HIGH-Z Detect Voltage 2.2V 1.8V Hysteresis 50mV 50mV Mode Battery Mode Adapter Mode
8. Battery Charging Circuit
* the battery charger circuit is separated from any other block . * TSD operate at 150C. Hysteresis is 30C
12
FAN8038B(KA3038)
Typical Performance Characteristics
Temp vs V S1TH 3. 20 3. 18 3. 15 3. 13 3. 10 3. 08 3. 05 -35 -20 -5 10 25 40 55 70 85 Temp[]
10. 50 10. 25 V ovp10. 00 [V ] 9. 75 9. 50 -35 -20 -5
Temp vs V ovp
V S1TH [V ]
10
25
40
55
70
85
Temp[]
BATT vs IST 0.1 0.05 IST [mA] 0 -0.05 -0.1 1.5 2.5 3.5 4.5 5.5 6.5 7.5 BATT[V ]
4 3 IBATT 2 [mA] 1 0 1. 5 2. 5
BATT vs IBATT
3. 5
4. 5
5. 5
6. 5
7. 5
BATT[V ]
Temp vs V EMPSET 1. 8 1. 6 V EMPSET 1. 4 [V ] 1. 2 1 -35 -20 -5 1 0. 9 0. 8 ISINK 0. 7 [mA] 0. 6 0. 5 10 25 40 55 70 85 0. 4 -35 -20 -5
Temp vs ISINK
10
25
40
55
70
85
Temp[]
Temp[]
13
FAN8038B(KA3038)
Application Circuits
ADT VCC
OFF 100k 102
ON
33uF 47 220uF 0.1uF
TO MICOM
44
43
42
41
40
39
38
37
36
35
34
CHG SETTING RES
1 2
TO MICOM
33 32
MAXIMUM DETECTOIN
STARTER
M
3
x2
31
SLED MOTOR
220uF
DC/DC CONVERTER
104
4
x2
30
M
5 8.2k 6 7 223 8 1uF 9 470p 10 11
MUTE34 MUTE2
NC OVER VOLTAGE PROTECTION
x2
29 28 27 26
SPINDLE MOTOR
220uF
x2
x2
x2
TRK ACTUATOR
x2
25
0.1uF
TRIANGLE WAVE SIGNAL VCC
x2
24
BRAKE1
FOC ACTUATOR
23
FROM MICOM
Filter
12
13
14
15
16
17
18
FROM MICOM
19
20
FROM MICOM
21
22
SERVO
14
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.
www.fairchildsemi.com 9/6/02 0.0m 001 Stock#DSxxxxxxxx 2002 Fairchild Semiconductor Corporation
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.

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