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KA3050
Camera Motor Drive and Control IC
Features
* Built-in DC motor driver : 1.5-CH DC motor driver : CW, CCW & Brake * Stepping motor driver * Built-in strobo control * Built-in IRED driver for auto-focus * Built-in VE selector * Built-in VE voltage detector * Built-in 5V regulator * Built-in step-up DC/DC converter controller
Description
The KA3050 is a monolithic integrated circuit, and suitable for the motor driver (AE, AF, zoom and reel motor driver) and the controller (strobo trigger, IRED driver, supply voltage detector, step-up converter control, etc.) in camera systems.
48-QFP-1010E
Typical Applications
* Camera system
Ordering Information
Device KA3050 Package 48-QFP-1010E Operating Temp. -20C ~ +50C
Rev. 1.0.1 February. 2000.
(c)2000 Fairchild Semiconductor International
KA3050
Pin Assignments
S-GND1
S-VE
P-VE
P-VE
DEO
RBT
BTS
VDS
36
35
34
33
32
31
30
29
28
27
26
25
FMO
FBR
FMI
IRI
VDD VDI VCC
37 38
24 23
P-GND2
IRO
39
22
DM1
MC1
40
21
DM2
MC2
41
20
DM3
MC3 MC4
42
19
P-GND2 SM1
43
KA3050
18
S-GND2 SC1
44
17
SM2
45
16
SM3 SM4
SC2
46 47
15 14
SC3
SM5 P-GND1
SC4
48
13
1 SEL
2 NES
3 PTR
4 NEC
5 TRI
6 MGI
7 P-GND1
8 VSI
9 VSI
10 OSC
11 TRO
12 MGO
2
KA3050
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 Pin Name SEL NES PTR NEC TRI MGI P-GND1 VSI VSI OSC TRO MGO P-GND1 SM5 SM4 SM3 SM2 SM1 P-GND2 DM3 DM2 DM1 IRO P-GND2 FMO FBR P-VE P-VE S-VE S-GND1 IRI FMI VDS BTS RBT DEO VDD VDI VCC MC1 IC on/off Comparator input PNP open collector output PNP open collector output Trigger input Magnet drive input Power ground 1 Step motor & AE meter power Step motor & AE meter power NPN open collector output PNP open collector output Magnet drive output (NPN open collector output) Power ground 1 Step motor & AE meter output 5 Step motor & AE meter output 4 Step motor & AE meter output 3 Step motor & AE meter output 2 Step motor & AE meter output 1 Power ground 2 DC motor output 3 DC motor output 2 DC motor output 1 IRED drive output Power ground 2 Step-up converter switching output IRED feedback input Power VE (Battery power) Power VE (Battery power) Signal VE (Battery power) Signal ground 1 IRED control input Step-up converter clock input VDD selection (4V/5V) Battery selection (3V/6V) VE voltage detection output(analog) VE voltage detection output(digital) Inside power & outside power output Step-up voltage Motor drive IC power & control block power (5V) output MC code input 1 Pin Function Description
3
KA3050
Pin Definitions (Continued)
Pin Number 41 42 43 44 45 46 47 48 Pin Name MC2 MC3 MC4 S-GND2 SC1 SC2 SC3 SC4 MC code input 2 MC code input 3 MC code input 4 Signal ground 2 SC code input 1 SC code input 2 SC code input 3 SC code input 4 / buffer output Pin Function Description
Internal Block Diagram
P_VE S_VE 29 28 27 FMO 25 VDI 38 VCC 39 DM1 22 DM2 21 DM3 20 VSI 9 VSI 8 SM1 18 SM2 17 SM3 16 SM4 15 SM5 14 IRO 23 FBR 26 OSC NEC NESPTR MGO 10 4 2 3 12 TRO 11
REG1
I RED Drive Block NPN Open Collector Output PNP Open Collector Output PNP Open Collector Output
NPN Open Collector Output 6 MGI
VDS
33 VE/VDD Detect
IRED/ Stepping Motor Current PFM DC/DC Control
P-GND1 7 P_GND2 19
13 24
S-GND 30
44
Motor or Strobo Control Block
1 SEL
34 BTS
36 DEO
32
35
40 MC1
41 MC2
42 MC3
43 MC4
45 SC1
46 SC2
47 SC3
48 SC4
31 IRI
Comparator Input
VDD
37
REG1
FMI RBT
4
PNP Open Collector Output 5 TRI
KA3050
Equivalent Circuits
Description MC1~4 SC1~4 DM1 DM2 DM3 P_VE P_GND Pin No. 40~43 45~48 22 21 20 27,28 7, 13, 19, 24
MC1 MC2 MC3 MC4 SC1 SC2 SC3 SC4
40 41 42 43 45 46 47 48
Internal Circuit
1.5-Channel DC Motor Drive Block
P_VE
27 28
MC1~MC4
DM3 DC Motor Control Block
20
DM2
21 22
DM1
SC1~SC4
7
13 19 24
P_GND
Stepping Motor Drive Block MC1~4 SC1~4 SM1 SM2 SM3 SM4 SM5 VSI P_GND MC1~4 SC1~4 IRO FBR 40~43 45~48 18 17 16 15 14 8, 9 7, 13, 19, 24 40~43 45~48 23 26
MC1 MC2 MC3 MC4 SC1 SC2 SC3 SC4
40 41 42 43 45 46 47 48 26
VSI MC1 MC2 MC3 MC4 SC1 SC2 SC3 SC4
40 41 42 43 45 46 47 48
8
9
MC1~MC4
Step Motor Control Block
SC1~SC4
SM1
18
SM2
17 16
SM3
SM4
15 14
SM5
P_GND 19
7
13 24
IRED Drive Block
IRO
23
IRI
31
MC1~MC4 IRED Control Block
SC1~SC4
FBR
5
KA3050
Equivalent Circuits (Continued)
Description FMI VDI FMO P_GND Pin No. 32 38 25 7, 13, 19, 24
Q Q S R
32 7 13 25
Internal Circuit
Step-up Control Block
FMO
38
VDI
Vref
FMI
19 24
P_GND
General Buffer & Comparator Drive Block
12
MC1~4 SC1~3 MGI MGO NES SC4 TRI TRO PTR NEC OSC P_GND
40~43 45~47 17 16 2 48 5 11 3 4 10 7, 13, 19, 24
MC1 MC2 MC3 MC4 SC1 SC2 SC3
40 41 42 43
MGI
MGO
6
NES
2 48
SC4
VDD*0.3 VCC TRI
5
Buffer Control Block
11
TRO
MC1~MC4
3
PTR NEC OSC
45 46 47
4
SC1~SC3
10
7
13
19 24
P_GND
6
KA3050
Absolute Maximum Ratings (Ta = 25C)
Parameter Supply voltage Output current (VDD) Output current (VCC) Output current (Stepping motor) Output current (AE meter) Current (DC motor) Output current (IRO) Output current (MGO) Output terminal voltage Input terminal voltage Power dissipation Operating temperature range Storage temperature Symbol VE IVDD IVCC ISM1, 2, 3, 4 ISM4, 5 IDM IIRO IMGO VOUT VIN PD TOPR TSTG Value -0.3 ~ +7.5 80 50 500 1000 3000 2000 500 -0.3 ~ +7.5 -0.3 ~ +7.5 1.0 -20 ~ +50 -55 ~ +125 Unit V mA mA mA mA mA mA mA V V W C C Within 70ms Within 70ms Within 10ms Within 500s Within 200ms Remark
Power Dissipation Curve
Power dissipation (W)
1.0
0.8
Ambient temperature, Ta (C) 25 50 150
Recommended Operating Conditions (Ta = 25C)
Parameter Operating Supply Voltage Symbol VE Min. 2.0 Typ. Max. 7.5 Unit V
7
KA3050
Electrical Characteristics (Ta = 25C)
Block Parameter Leakage current Low input voltage range Total High input voltage range Control input current Min. operating voltage Step-up output voltage 1 Step-up output voltage 2 Step-up & VDD FMO output voltage 1 FMO output voltage 2 FMI step-up clock VDD output voltage 3 VDD output voltage 4 Input & output potential difference 1 VE detection voltage (1-1) VE detection voltage (1-2) VDET VE detection voltage (2-1) VE detection voltage (2-2) Output saturation voltage Operating voltage range 1 Stand-by output voltage Output voltage in operating RBT Operating voltage range 2 Output voltage temperature coefficient VCC output voltage VCC Input & output potential difference 2 Function compensation voltage range 3 DC MOTOR Function compensation voltage range 4 Output voltage (PNP+NPN) 1 Output voltage (PNP+NPN) 2 Symbol ISTB VINL VINH IIH IIL VMIN VVDI1 VVDI2 VOL1 VOL2 f VVDD3 VVDD4 VSAT1 VTH+1 VTH-1 VTH+2 VTH-2 VDEO VOPR1 VSBT VRBT1 VOPR2 VT VVDD5 VDAT2 VOPR3 VOPR4 VDM1 VDM2 IO=50mA IO=50mA, VCC=3V VE VE=2.0V, IOL=800mA VE=2.0V, IOL=1000mA IOL=10A VIH=4.0V VIL=GND VE=2.0V, ILOAD=100mA VE=2.0V, ILOAD=100mA VE=2.0V, ILOAD=700mA VE=2.0V, ILOAD=1000mA VE=2.0V IO=80mA IO=80mA IO=80mA VE=6V VE=6V VE=6V/3V VE=6V/3V VE=2.0V, IOL=5mA VE Condition VE=6.0V Min. Typ. Max. Unit -0.3 1.6 -1 5.35 8.3 39 3.85 4.85 3.0 2.7 1.5 1.2 1.2 0.47 1.5 4.85 1.0 1.0 80 5.5 8.6 156 4.0 5.0 3.15 2.85 1.65 1.35 0.5 5.0 0.6 0.8 1.0 0.6 7.0 120 0 1.0 5.65 V 8.9 0.3 V 0.4 313 4.15 5.15 0.3 3.3 3.0 1.8 1.5 0.5 7.5 0.1 7.5 2.0 5.15 0.3 7.5 7.5 0.8 1.0 KHz V V V V V V V V mV/ C V V V V V 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 7 6 A V V A V Notes 1 2 3 4 5
0.53 x VE
8
KA3050
Electrical Characteristics (Continued)
Block Parameter Function compensation voltage range 5 S.M & AE METER Output saturation voltage Output voltage relative error VCOIL voltage VCOIL voltage STEP Function compensation voltage range 6 TRO output voltage PTR output voltage STROBO NEC output voltage OSC output voltage NES detection voltage SC4 "L" level SC4 "H" level Output saturation voltage 3 IRED Output current Operating voltage range MGI detection voltage MG MGO output saturation voltage Symbol VOPR5 VSTP V VCOIL VCOST VOPR6 VTRO VPTR VNEC VOSC VNES VSOL VSOH VSAT3 IO VOP VMGI VMGO IOL=1A RFBR=0.25 VFBR=200mV IO=500mA IO=10mA IO=10mA IO=10mA IO=10mA Condition VSI=VE VSI=3.5V, IO=500mA IO=300mA, SMI1,2,3,4 VCC=5V Min. 1.6 1.7 1.0 0.27 0.8 0.72 1.5 0.22 Typ. 1.8 190 0.3 0.8 0.25 Max. 7.5 0.8 0.1 1.9 7.5 0.5 0.5 0.5 0.5 0.3 1.0 0.88 7.5 Unit Notes V V V V mV V V V V V V x VDD V A V 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
0.33 x VDD
0.28 x VCC 0.5 V
9
KA3050
Electrical Characteristics (Continued)
Notes: 1. Define Input Current at Stand-By. 2. Define Low Level of Input Terminals. 3. Define High Level of Input Terminals. 4. Define Input Current of Each Control Input Terminals. 5. Define Min. Operating Voltage for Step-up Circuits (SEL, FMO) 6. Define Output Voltage of VDD at Step-up. 7. Define Saturation Voltage of FMO Output. 8. Define Frequency of Step-up Clock. 9. Define Output Voltage of VDD. 10. Define Input and Output Potential Difference of VDD Regulator. 11. Define Detection Voltage of VE Detection Circuit. ( with Hysteresis, Using 6V Battery ) 12. Define Detection Voltage of VE Detection Circuit. ( with Hysteresis, Using 6V or 3V Battery ) 13. Define Output Saturation Voltage of DEO. 14. Define Operating Voltage Range of VE Detection Circuit. 15. Define Output Voltage at Stand-by. 16. Define RBT Output Voltage at Operating RBT Circuit. 17. Define Operating Voltage Range of RBT Circuit. 18. Define Temperature Coefficient of RBT Output Voltage. 19. Define VCC Output Voltage at Connecting VSI and VE. 20. Define Input and Output Potential Difference of VCC Regulator. 21. Define Function Compensation Voltage of VCC Output Circuit. 22. Define Function Compensation Voltage of DC Motor Driving Circuit. 23. Define Output Saturation Voltage ( PNP + NPN ) of DC Motor Driving Circuit. 24. Define Function Compensation Voltage of Stepping Motor and AE Meter Driving Circuit. 25. Define Output Saturation Voltage ( PNP + NPN ) at Flowing Specified Current. 26. Define Relative Error of Output Voltage at Flowing Specified Current between SM1-2 and SM3-4. 27. Define Voltage between Both Side of VCOIL. 28. Define Function Compensation Voltage of Strobo Control Circuit. 29. Define Output Saturation Voltage of TRO. 30. Define Output Saturation Voltage of PTR. 31. Define Output Saturation Voltage of NEC. 32. Define Output Saturation Voltage of OSC. 33. Define Detection Voltage of NES Voltage Detection Circuit. 34. Define Low Level of SC4. 35. Define High Level of SC4. 36. Define Output Saturation Voltage of IRED Driving Circuit. 37. Define Output Current of IRO. 38. Define Operating Voltage Range of IRED Driving Circuit. 39. Define Detection Voltage of MGI. 40. Define Output Saturation Voltage at Flowing Specified Current of MGO.
10
KA3050
Application Information
1. Zoom And Reel Motor Drive Block (1.5-Channel Dc Motor Drive Block)
MC1~MC4
VE
DM3 DC Motor Control Block
20
DM2
21 22
DM1
SC1~SC4
M
M
This block diagram describes the driver of zoom and reel motor in camera systems. The drive block is controlled by MC1~4 and SC1~4, which are come from micro controller. Follow is the control logic table. INPUT MC1 MC2 L L L L H H H MC3 L H H L H H MC4 H L H H L H L L L L SC1 SC2 SC3 SC4 DM1 L H L OUTPUT DM2 H L L H L L DM3 L H L
11
KA3050
2. Af Motor And Ae Meter Drive Block (Stepping Motor Drive Block)
MC1~MC4
SM1 Stepping Motor Control Block
18
SM2
17 16
SM3
SM4
15 14
SM5
VSI
SC1~SC4
The block diagram describes the driver of AF motor and AE meter in camera systems. The drive output is selected by MC signals (MC1~4). These MC codes are as follows. INPUT MC1 MC2 L L L H H H H H MC3 L H H L L H H MC4 H L H L H L H SM1 L L H H SM2 H H L L OUTPUT SM3 L H L H SM4 L H L H L H L SM5 H L L -
The output voltage (VCOIL) is determined by SC1~4. The VCOIL is potential difference between drive output and ground. i.e., VCOIL = VSM - GND. The VCOIL is selected by following table.
12
KA3050
INPUT SC1 L L L L L L L L H H H H H H H H SC2 L L L L H H H H L L L L H H H H SC3 L L H H L L H H L L H H L L H H SC4 L H L H L H L H L H L H L H L H
VCOIL OUTPUT VOLTAGE [V] 1.80 1.99 2.18 2.37 2.56 2.75 2.94 3.13 3.32 3.51 3.70 3.89 4.08 4.27 4.46 4.65
3. Ired Drive Block
IRED IRO
23
IRI
31
MC1~MC4 IRED Control Block
SC1~SC4
26
FBR RC
The block drives infrared emitting diode (IRED). The FBR voltage (VFBR) is controlled by MC codes and SC codes. The IRED current ( IIRED ) is determined by VFBR and resistor Rc. i.e., IIRED = VFBR / RC 13
KA3050
The VFBR is controlled as following table. INPUT MC1 L MC2 H MC3 L MC4 L SC1 L L L L L L L L H H H H H H H H SC2 L L L L H H H H L L L L H H H H SC3 L L H H L L H H L L H H L L H H SC4 L H L H L H L H L H L H L H L H VFBR [mV] 190 210 230 250 270 290 310 330 350 370 390 410 430 450 470 490
4. Step-up Control Block
25
FMO
38
VDI
VE
Q Q
S R
Vref
32
FMI
The FMO frequency from KA3050 steps up the battery voltage VE. The FMO frequency depends on the FMI frequency, which is come from micro controller. Maximum value of VDI is 5.5V in normal operation mode, and 8.6V in IRED operation mode. i.e.,
14
KA3050
Normal Operation Mode: VDI = 5.5V IRED Operation Mode: VDI = 8.6V
5. General Buffer And Comparator Drive Block
12
MGI
MGO
6
NES
2 48
SC4
VDD*0.3 VCC TRI
5
Buffer Control Block
11
TRO
MC1~MC4
3
PTR NEC OSC
4 10
SC1~SC3
The KA3050 is composed of 5 general buffers and a comparator. This block has 10 inputs and 6 outputs. All output are controlled by MC and SC codes except MGO. The control codes are as follows. INPUT MC1 MC2 MC3 MC4 SC1 L L L L L L L H SC2 L H H L SC3 H L H L NES H/L H/L TRI H/L SC4 L/H L/H OSC L L OUTPUT NEC H H PTR H TRO H/ OPEN
The NES and SC4 are conflict with each other, it means. NES = High SC4 = Low NES = Low SC4 = High
15
KA3050
The meaning of H/L in TRI signal and H/OPEN in TRO signal are as follows. TRI = High SC4 = High TRI = Low SC4 = Open The OSC signal refer to following table. VDET1 H L DEO(VDET2) H L H L Where, DEO: Battery Voltage Checker, Pin 36 BTS: Battery Selector, Pin 34 Ground(3V) Open(6V) BTS OSC Enable Disable Disable Enable Disable Step-up Circuit Enable Enable Disable Enable Disable
Users can't check the VDET1 because VDET1 is selected automatically inside the KA3050 in 6V battery usage. But step-up circuit (SUC) can be checked by DEO signal. The VDET1 and DEO have hysteresis loop as following graph.
VDET1
H
DEO
H
L
VTH1-
VTH1+
VE[V]
L
VTH2-
VTH2+
VE[V]
The VTH1 and VTH2 refer to electrical characteristics.
16
KA3050
6. Other Control Blocks
The following table is description of other control blocks. Pin No. 1 33 34 35 36 37 39 Symbol SEL VDS BTS RBT DEO VDD VCC Function High: KA3050 Operation Low: KA3050 No Operation Open: VDD = 5V Ground: VDD = 4V Open: VE = 6V Ground: VE = 3V VRBT = VE / 2 High: Sufficient Battery Low: Insufficient Battery 4V or 5V Regulator output 5V Regulator output
17
KA3050
Control Code Table
MC1 MC2 MC3 MC4 SC1 SC2 SC3 SC4 DM1 DM2 DM3 SM1 SM2 SM3 SM4 SM5 OSC NEC PTR NES TR1 L L L L L L L L H H H H H H H H L L L L H H H H L L L L H H H H L L H H L L H H L L H H L L H H L H L L H L H L H L H L H CODE L H L H L L L L L L L H L L L L L L L L / H H / * L / * L / * L H H H H H H H H H L L L L L H H H H L L L L H H H H H L L L H H L L H H L L H H L L H H *1 *1 L H L H L H L H L H L H L H L H L H H/L H/OPEN
TR0 -
FBR VCO -
L L L L H L CODE L L L L L H H L *1 *1 -
H L L H L L -
L H L -
L L H H -
H H L L -
L H L H -
L H L H L H L -
H L L -
L
H H
-
H/L H/L
-
FBR 190mV 210mV 230mV 250mV 270mV 290mV 310mV 330mV 350mV 370mV 390mV 410mV 430mV 450mV 470mV 490mV
VCOIL 1.80V 1.99V 2.18V 2.37V 2.56V 2.75V 2.94V 3.13V 3.32V 3.51V 3.70V 3.89V 4.08V 4.27V 4.46V 4.65V
-
Note: * mark : Detect NES signal and send a inverted signal to SC4.
18
KA3050
Test Circuits
0.25
10K
10K
R L
RL
LR
L
R SW15
SW18
SW17
SW16
36
35
34
33
32
31
30
29
28
27
26
25
37
24
10K
38 23 L 39 22 H H M L H M L H M L 42 19
10K 10K
100
40
21
10K
100
41
20
43
KA3050
18 H 100 17 L H
44
45
16
L H L H M L H M L
10K
100
46
15
10K
100
47
14
48
13
1
2
3
4
5
6
7
8
9
10 SW3 L
11 SW4
12 SW5
A
IVE
A
IVDI
SW1 L R R L SW2
RL
RL
R
A
IIN
A
IVSI
10K 10K 10K
VE
VDI
10K
10K
VIN VSI
19
KA3050
Typical Application Circuits
9
VE
29 28 27
25
23
38
37
39
8 26
FMO IRO
VDI VDD VCC VSI
FBR
VE
1 5 12 31 32 33 34
Micro Controller Unit
35 36 40 41 42 43 45 46 47 48 24 19 13 7
SEL TRI MGO IRI FMI VDS BTS RBT DEO MC1 MC2 MC3 MC4 SC1 SC2 SC3 SC4 GND GND
NES PTR NEC OSC TRO DM3
2 3 4 10 11
Strobo Block
20
M
KA3050
DM2 DM1 SM5 SM4 SM3 SM2
21
M
22
14
15
16
17
44 34 33 30
MGI
6
SM1
18
20
KA3050
21
KA3050
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 INTERNATIONAL. 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 12/1/00 0.0m 001 Stock#DSxxxxxxxx 2000 Fairchild Semiconductor International
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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