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ICs for Compact Disc/CD-ROM Player
AN8473SA
Spindle motor driver IC for optical disk
I Overview
The AN8473SA is an optical disk driver IC, featuring direct PWM drive, DMOS power drive, low ON resistance of output power MOS and 120 of duty-factor.
32 11.00.3 17
Unit: mm
6.10.3
I Features
* RON = 0.5 (for both upper and lower) * 5 V single power source * Circuit current 7 mA (including step-up circuit current)
0.650.1
8.10.3
1
16
0.2-0.05
1.50.2
+0.1
(0.625)
0.65
0.3 -0.05 Seating plane
+0.1
I Applications
* Optical disk
0.650.1
0.10.1
(0.5)
SSOP032-P-0300 Note) The package of this product will be changed to lead-free type (SSOP032-P-0300B). See the new package dimensions section later of this datasheet.
VDD
16
14
13
Start 11 FG 10 H1H 7 H1L 6 H2H 5 H2L 4 H3H 3 H3L 2 VH 1 EC 8 ECR 9 PWMSW 30
Start/ stop
Step-up voltage circuit OSC Thermal protection
12
VPUMP
I Block Diagram
BC2 BC1
17 18 32 31
VM21 VM22 VM11 VM12 A11 A12 A21 A22 A31 A32 PG2 PG1 CS GND
Amp. Hall amp. matrix Distributor circuit PWMOUTU Amp. PWMOUTL FF Absolute value PWM frequency changeover circuit VT SRESET SSET VC1 x5 Output circuit
27 28 24 25 21 22 23 26 19 15
Hall bias
Publication date: November 2001
SDD00005BEB
1
AN8473SA
I Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol VH H3L H3H H2L H2H H1L H1H EC ECR FG Start VPUMP BC1 BC2 GND VDD Description Hall bias pin Hall element-3 negative input pin Hall element-3 positive input pin Hall element-2 negative input pin Hall element-2 positive input pin Hall element-1 negative input pin Hall element-1 positive input pin Torque command input pin Torque command reference input pin FG signal output pin Start/stop changeover pin Booster pin Booster capacitor connection pin 1 Booster capacitor connection pin 2 Ground pin Supply voltage pin Pin No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Symbol VM21 VM22 CS N.C. A31 A32 PG2 A21 A22 PG1 A11 A12 N.C. Description Motor supply voltage pin 2 Motor supply voltage pin 2 Current det. pin N.C. Drive output 3 Drive output 3 Power current det. pin 2 Drive output 2 Drive output 2 Power current det. pin 1 Drive output 1 Drive output 1 N.C.
PWMSW PWM frequency changeover pin VM12 VM11 Motor supply voltage pin 1 Motor supply voltage pin 1
I Absolute Maximum Ratings
Parameter Supply voltage
*2
Symbol VDD VM11, 12 VM21, 22
Rating 6.5
Unit V
Drive output voltage
*5 *6
V(m) V(n) IDD I(o) IHB(n) PD
*1
15 0 to VDD 30 1 200 30 293 -30 to +85 -55 to +150
V V mA mA mA mW C C
Control signal input voltage Supply current Drive output current Hall bias current
*7 *3 *4
Power dissipation
Operating ambient temperature Storage temperature
*1
Topr Tstg
Note) Do not apply external currents or voltages to any pins not specifically mentioned. For circuit currents, '+' denotes current flowing into the IC, and '-' denotes current flowing out of the IC. *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25C. *2: The voltage in the step-up voltage circuit exceeds the supply voltage. For the allowable value of the step-up voltage, refer to "I Electrical Characteristics". *3: The power dissipation shown is the value of independent IC without a heat sink at Ta = 70C. Refer to the PD Ta curves of the "I Application Notes" for details. *4: o = 17, 18, 21, 22, 23, 24, 25, 26, 27, 28, 31, 32 *5: m = 21, 22, 24, 25, 27, 28 *6: n = 2, 3, 4, 5, 6, 7, 8, 9, 11, 30 *7: n = 1
2
SDD00005BEB
AN8473SA
I Recommended Operating Range
Parameter Supply voltage Symbol VDD VM11, 12 VM21, 22 Range 4.5 to 5.5 Unit V
I Electrical Characteristics at Ta = 25C
Parameter Overall Circuit current 1 Circuit current 2 Start/stop Start voltage Stop voltage Hall bias Hall bias voltage Hall amplifier Input bias current In-phase input voltage range Minimum input level Torque command In-phase input voltage range Offset voltage Dead zone Input current Input/output gain Output High-level output saturation voltage Low-level output saturation voltage Torque limit current FG FG output high-level FG output low-level In-phase input voltage range FG hysteresis width Step-up circuit Step-up voltage VPUMP VDD = 5 V 7 10 V FGH FGL VFGR HFG VDD = 5 V, IFG = - 0.01 mA VDD = 5 V, IFG = 0.01 mA VDD = 5 V VDD = 5 V 3 1.5 5 10 0.5 3.0 20 V V V mV VOH VOL ITL VDD = 5 V, IO = -500 mA VDD = 5 V, IO = 500 mA VDD = 5 V, RCS = 0.33 455 0.15 0.15 570 0.30 0.30 685 V V mA EC ECOF ECDZ ECIN ACS VDD = 5 V VDD = 5 V VDD = 5 V VDD = 5 V, EC = ECR = 2.5 V VDD = 5 V, RCS = 0.33 0.5 -100 0 -5 0.36 0 75 -1 0.48 3.9 100 150 0.60 V mV mV A A/V IBH VHBR VINH VDD = 5 V VDD = 5 V, except for H2H, H2L VDD = 5 V 1.5 60 1 5 4.0 A V mV[p-p] VHB VDD = 5 V, IHB = 20 mA 0.7 1.2 1.6 V VSTART VSTOP Voltage with which a circuit operates at VDD = 5 V and L H Voltage with which a circuit becomes off at VDD = 5 V and H L 2.7 0.7 V V IDD1 IDD2 VDD = 5 V in power save mode VDD = 5 V including step-up circuit 0 7 0.2 14 mA mA Symbol Conditions Min Typ Max Unit
SDD00005BEB
3
AN8473SA
I Electrical Characteristics at Ta = 25C (continued)
Parameter PWM oscillation changeover Input high-level Input low-level * Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Symbol VDD = 5 V VDD = 5 V
Conditions
Min
Typ
Max 0.5
Unit
PWMH PWML
4.5
V V
Parameter PWM oscillation changeover PWM frequency high-level PWM frequency low-level Thermal protection Thermal protection operating temperature Thermal protection hysteresis width
Symbol
Conditions VDD = 5 V, PWMSW = Low VDD = 5 V, PWMSW = High VDD = 5 V VDD = 5 V
Min
Typ
Max
Unit
fPWMH fPWML TSDON TSD
80 40
kHz kHz C C
150 40
I Usage Notes
* Prevent this IC from being line-to-ground fault. (To be concrete, do not short-circuit any of A31 (pin 21), A32 (pin 22), A21 (pin 24), A22 (pin 25), A11 (pin 27) and A12 (pin 28) with GND pin (pin 15).) * Be careful of the following three pins because their static breakdown voltages are low. (C = 200 pF, R = 0 ) Pin 23: breakdown at 120 V Pin 26: breakdown at 120 V
I Application Notes
* PD Ta curves of SSOP032-P-0300 PD T a
1 400
1 200 1 032 1 000 Mounted on standard board (glass epoxy: 50 x 50 x t0.8 mm3) Rth(j-a) = 96.9C/ W PD = 1 032 mW (25C)
Power dissipation PD (mW)
800
600 534 400 Independent IC without a heat sink Rth(j-a) = 187.1C/ W PD = 534 mW (25C)
200
000 0 25 50 75 100 125 150
Ambient temperature Ta (C)
4
SDD00005BEB
AN8473SA
I Application Notes (continued)
* Phase conditions between Hall input and output current Phase of Hall pin H1H A B C D E F H MH ML L ML MH H2H ML L ML MH H MH H3H ML MH H MH ML L
H1
H3
H2
H1
H2
H3
0
ECR EC 0 Emit Output current Sink Emit Output current Sink Emit Output current Sink A B C D E F 0 A3 A2 0 A1 0
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5
AN8473SA
I Application Circuit Example
( Check the stipulated value of electrical characteristics and then determine resistance value.) 5V 0.1 F 100 F 0.1 F
Start 100
11
Start/ stop
Step-up voltage circuit OSC Thermal protection
12 VPUMP
16 VDD
14 BC2
13 BC1
17 VM21 18 VM22 32 VM11 31 VM12
2 200 pF 10 FG H1H 7 H1L 6 H2H 5 H2L 4 H3H 3 H3L 2 VH 1 100 Hall bias Hall amp. matrix
Amp. Distributor circuit PWMOUTU Amp. PWMOUTL FF Absolute value PWM frequency changeover circuit VT SRESET SSET VC1 X5 Output circuit
27 A11 28 A12 24 A21 25 A22 21 A31 22 A32 23 PG2 26 PG1 19 CS 15 GND RCS = 0.33
8 Spindle speed EC control signal ECR 9 PWMSW 30 High: 40 kHz Low: 80 kHz
I New Package Dimensions (Unit: mm)
* SSOP032-P-0300B (Lead-free package)
11.000.20 32 17
6.100.20 8.100.30
(1.00)
0.20-0.05
+0.10
0 to 8 1 (0.625) 0.65 16
1.500.20
(0.50)
0.30+0.10 -0.05
Seating plane
0.100.10
Seating plane
6
SDD00005BEB
Request for your special attention and precautions in using the technical information and semiconductors described in this material
(1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. (2) The technical information described in this material is limited to showing representative characteristics and applied circuit examples of the products. It does not constitute the warranting of industrial property, the granting of relative rights, or the granting of any license. (3) The products described in this material are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). Consult our sales staff in advance for information on the following applications: * Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. * Any applications other than the standard applications intended. (4) The products and product specifications described in this material are subject to change without notice for reasons of modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements. (5) When designing your equipment, comply with the guaranteed values, in particular those of maximum rating, the range of operating power supply voltage and heat radiation characteristics. Otherwise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, redundant design is recommended, so that such equipment may not violate relevant laws or regulations because of the function of our products. (6) When using products for which dry packing is required, observe the conditions (including shelf life and after-unpacking standby time) agreed upon when specification sheets are individually exchanged. (7) No part of this material may be reprinted or reproduced by any means without written permission from our company.
Please read the following notes before using the datasheets
A. These materials are intended as a reference to assist customers with the selection of Panasonic semiconductor products best suited to their applications. Due to modification or other reasons, any information contained in this material, such as available product types, technical data, and so on, is subject to change without notice. Customers are advised to contact our semiconductor sales office and obtain the latest information before starting precise technical research and/or purchasing activities. B. Panasonic is endeavoring to continually improve the quality and reliability of these materials but there is always the possibility that further rectifications will be required in the future. Therefore, Panasonic will not assume any liability for any damages arising from any errors etc. that may appear in this material. C. These materials are solely intended for a customer's individual use. Therefore, without the prior written approval of Panasonic, any other use such as reproducing, selling, or distributing this material to a third party, via the Internet or in any other way, is prohibited.
2001 MAR

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