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ICs for VCR
AN3895FHQ
Cylinder/capstan motor driver IC for video camera
s Overview
The AN3895FHQ is an IC designed for driving a cylinder/capstan motor for a video camera.
48 12.00.4 10.00.3 33
Unit: mm
s Features
* Operating supply voltage range: VCC = 3.1 V to 5.5 V Cylinder block * Reduction of magnetic sound due to 3-phase full wave overlap driving * Built-in standby mode for power saving * Built-in PG*FG and waveform shaping circuit * Built-in switching power supply control circuit Capstan block * Overlap driving * Built-in torque ripple cancel circuit * Built-in switching power supply control circuit * Built-in output transistor saturation prevention circuit for both lower and upper sides * Forward/reverse rotations
49
32
10.00.3
64 17
0.15 +0.10 -0.05
0.6250.1
(0.5)
(0.5)
0.18 +0.10 -0.05 Seating plane
LQFP064-P-1010
s Applications
* Video camera
0.10.1
1.40.2
1
16
0.6250.1
12.00.4
1
AN3895FHQ
s Block Diagram
ICs for VCR
40 YTEST
42 GNDC
47 CECR
44 CPCV
43 CPCS
39 CH1+
38 CH1-
37 CH2+
36 CH2-
35 CH3+
34 CH3-
CRSF 49 CSWB 50 YSWB 51 GSWB 52 CYFC 53 VCC 54 YCLK 55 YSL3 56 YSL2 57 CFG 58 YPG 59 YFG 60 GPF 61 PFREF 62 YPGO 63
33 VMC
32 CM1 31 CM2 30 CM3 29 CU3 28 CU2 27 CU1
Amp.
45 CPCI
48 CEC
41 CCS
46 CTL
R/S/F Amp. 1/N Mod.
Hall amp. matrix VM bottom limit shortcircuit protection circuit Upper VCE det. circuit Lower VCE det. circuit
Absolute value
Upper side saturation prevention circuit Lower side saturation prevention circuit
Direction det. Logic Direction switch
Upper side distribution
26 CL1 25 CL2
Lower side distribution
Amp.
24 CL3 23 YU3
Comp.
Min.
Absolute value
22 YU2 21 YU1
Comp.
Amp.
Current flow phase changeover logic
Distribution
Amp.
20 YL1 19 YL2
BEMF det. comp. Comp. Va lower limit VCE det.
18 YL3 17 YM1
YPCI 64
YPCV 10
YPCS 11
GNDY 12
YCS 13
VMY 14
YM3 15
YFGO 1
YFGI 2
CFGO 3
CFGI 4
YSTB 5
YECR 6
YSL1 8
2
YPCI 9
YM2 16
YEC 7
ICs for VCR
s Pin Descriptions
Pin No. 1 2 3 4 5 6 Description YFGO: CYL-FG amp. output YFGI: CYL-FG amp. input CFGO: CAP-FG amp. output CFGI: CAP-FG amp. input YSTB: CYL-standby input changeover YECR: CYL-torque command reference input pin 7 8 9 YEC: CYL-torque command input pin YSL1: CYL-current flow waveform slope pin 1 YPCI: CYL-current feedback phase compensation 10 YPCV: CYL-voltage feedback phase compensation 11 YPCS: CYL-switching power supply control output 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 GNDY: CYL-grounding pin YCS: CYL-CS current det. pin VMY: CYL-motor power supply pin YM3: CYL-motor coil pin 3 YM2: CYL-motor coil pin 2 YM1: CYL-motor coil pin 1 YL3: CYL-lower side pre-drive output 3 YL2: CYL-lower side pre-drive output 2 YL1: CYL-lower side pre-drive output 1 YU1: CYL-upper side pre-drive output 1 YU2: CYL-upper side pre-drive output 2 YU3: CYL-upper side pre-drive output 3 CL3: CAP-lower side pre-drive output 3 CL2: CAP-lower side pre-drive output 2 CL1: CAP-lower side pre-drive output 1 CU1: CAP-upper side pre-drive output 1 CU2: CAP-upper side pre-drive output 2 CU3: CAP-upper side pre-drive output 3 CM3: CAP-motor coil pin 3 CM2: CAP-motor coil pin 2 CM1: CAP-motor coil pin 1 VMC: CAP-motor power supply pin 54 55 56 57 58 59 60 61 62 63 64 52 53 51 46 47 48 49 50 45 44 Pin No. 34 35 36 37 38 39 40 41 42 43 CH3- CH3+ CH2- CH2+ CH1- CH1+
AN3895FHQ
Description : CAP-Hall element input : CAP-Hall element input : CAP-Hall element input : CAP-Hall element input : CAP-Hall element input : CAP-Hall element input
YTEST: CYL-test mode changeover input CCS: CAP-current det. pin GNDC: CAP-grounding pin CPCS: CAP-switching power supply control output CPCV: CAP-voltage feedback phase compensation CPCI: CAP-current feedback phase compensation CTL: CAP-torque limit CECR: CAP-torque command reference voltage CEC: CAP-torque command input pin CRSF: CAP-direction command input pin CSWB: CAP-SW-power supply pre-drive output YSWB: CYL-SW-power supply pre-drive output GSWB: CAP, CYL-SW power supply grounding pin CYFC: CAP, CYL-SW comparater triangular wave input VCC -power supply pin YCLK: CYL-clock input YSL3: CYL-current flow waveform slope pin 3 YSL2: CYL- current flow waveform slope pin 2 CFG: CAP-FG amp. waveform shaping output YPG: CYL-PG amp. waveform shaping output YFG: CYL-FG amp. waveform shaping output GPF: FG, PG-grounding pin PFREF: FG, PG-reference voltage YPGO: CYL-PG amp. output YPCI: CYL-PG amp. input 3
AN3895FHQ
s Absolute Maximum Ratings
Parameter Supply voltage Supply current Power dissipation Operating ambient temperature Storage temperature
*1 *2 *1
ICs for VCR
Symbol VCC ICC PD Topr Tstg Vm Vn Vl Vo
Rating 6.0 582 -20 to +70 -55 to +125 12.0 12.0 12.0 - 0.3 to VCC +0.3
Unit V mA mW C C V V V V
Motor supply voltage Output pin voltage
*3
Switching power supply driving output pin voltage *4 Pin voltage *5
Note) 1. *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25C. *2: m = 14, 33 *3: n = 15 to 32 *4: l = 50, 51 *3: o = 2, 4, 5, 7, 8, 13, 34 to 41, 46 to 49, 53, 55 to 57, 59, 62, 64 2. Do not apply external currents or voltages to any pins not specifically mentioned. 3. For circuit currents, '+' denotes currents flowing into the IC, and '-' denotes current flowing out of the IC.
s Recommended Operating Range
Parameter Supply voltage Symbol VCC Range 3.1 to 5.5 Unit V
s Electrical Characteristics at Ta = 25C
Parameter Cylinder block Supply current 1 Supply current 2 ICC(1) ICC(2) Common for both cylinder and capstan in operation At STB mode of cylinder 2.14 -5 -100 0.13 150 0.20 0.50 10 22 12 2.24 - 0.7 -40 0.15 180 0.40 0.71 30 -23 30 20 2.54 100 0.17 210 0.60 0.90 -10 mA mA V A mV times mV V V mA mA Symbol Conditions Min Typ Max Unit
Torque command reference voltage VYECR Torque command input current Torque command input offset voltage Input/output gain Output maximum voltage Lower side output voltage 1 Lower side output voltage 2 Upper side driving current 1 Lower side output current 2 IYEC YEC YGio YCSmax YRCS = 0.27 YVL(1) YVCS = 54 mV YVL(2) YECR = 2.24 V, YEC = 0 V YIU YIL
4
ICs for VCR
s Electrical Characteristics at Ta = 25C (continued)
Parameter Cylinder block (continued) SW power supply control output VYUD(1) YEC = 2.14 V, YECR = 2.24 V, voltage 1 VYPCS = 1.75 V SW power supply control output VYUD(2) YEC = 0 V, YECR = 2.24 V, voltage 2 VYPCS = 1.75 V SW power supply control output gain SW reg. driving current 1 SW reg. driving current 2 SW reg. comparator on time SW reg. comparator off time GYPCS YEC = 2.14 V, YECR = 2.24 V 0.26 0.43 6.5 3 11 -5 V[p-p] = 1.5 mV, f = 1 kHz 45 2.0 45 0.45 2.0 2.15 VYSTB = 0 V CEC = CECR = 1.75 V -100 -1 1.55 0.5 0.19 0.21 -100 50 0.19 0.40 1.2 -8 Symbol Conditions Min Typ
AN3895FHQ
Max
Unit
0.37 0.61 9 9 23 0.2 0.2 4 48 2.6 0.7 48 0.52 2.9 0.3 1.4 1.4
0.48 0.81 11 1.0 1.0 25 1.5 0.62 1.0 0.6 1.95 3.0 0.27 4 100 140 0.47 0.77 2.4 8
V V times mA mA s s mV dB V V dB V V V V V A A V V V times mV mV mV V V V mV
IYSW(1) YEC = YECR = 2.24 V IYSW(2) YEC = 0 V, YECR = 2.24 V YtON YtOFF
SW reg. comparator offset voltage VYFC FG amp. gain YFG high-level YFG low-level PG amp. gain PG amp. offset voltage YPG high-level YPG low-level Standby voltage Standby reset voltage Standby input current Capstan block Torque command input current ICEC YGFG YFG(H) IYFG = -100 A YFG(L) IYFG = 100 A YGPG YPGIN YPG(H) IYPG = -10 A YPG(L) IYPG = 100 A YSTBON YSTBOFF IYSTB V[p-p] = 1.5 mV, f = 1 kHz
0.2 1.75 0.22 0.24 0 -40 90 0.29 0.61 0
Torque command reference voltage VCECR Torque command input voltage Output maximum voltage Torque command I/O gain Output idle voltage Torque command input offset voltage Torque command dead zone Lower side VCE voltage 1 Lower side VCE voltage 2 Hall element input allowable voltage Offset referred to Hall element input VCEC CCSmax RCS = 0.3 CGIO CCSIDLE CECOFC CECDZ CVLL(1) CCS = 60 mV CVLL(2) CEC = 0 V, CTL = 0.2 V CHIN CHOFS
5
AN3895FHQ
s Electrical Characteristics at Ta = 25C (continued)
Parameter Capstan bock (continued) TL-CS offset 1 Forward rotation command voltage Stop command voltage Reverse rotation command voltage Ripple rejection factor Upper side driving max. current Lower side driving max. current SW power supply input offset SW power supply output gain SW power supply output voltage 1 SW power supply output voltage 2 SW reg. driving current 2 SW power supply comparator on time SW power supply comparator off time FG-PG amp. reference voltage FG amp. loop gain FG amp. high-level output voltage FG amp. low-level output voltage VM under limit VM short-circuit protection * Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
ICs for VCR
Symbol
Conditions
Min
Typ
Max
Unit
CTLOFS(1) VF VS VR CIU CIL SWOFS GCPCS VUD(1) VUD(2) ISWB(2) tON tOFF PFREF CGFG CFGH CFGL CVML CVMS External 1 k, 300 k, input 3 mV[p-p], 1 kHz ICFG = -100 A ICFG = 100 A CEC = CECR, CPCS = 1.7 V CEC = 0 V, CTL = 0.2 V, CPCS = 1.7 V CEC = 0 V, CTL = 0.2 V CS = 60 mV
6 1.27 2.63 8 10 -25 8.0 0.20 0.47 15 1.7 45 2.0 1.13 0.26
10 1.0 2.45 13 40 -20 0 10.6 0.29 0.72 22 0.2 0.2 2.0 48 2.6 0.8 1.45 0.44
14 0.87 2.23 18 -10 15 13.0 0.40 1.10 1 1 2.3 1.5 1.88 1.00
mV V V V % mA mA mV times V V mA s s V dB V V V V
Parameter Slope pin charge current Slope pin discharge current
Symbol IYSCH IYSDCH
Conditions
Min
Typ -25 25
Max
Unit A A
6

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