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HA178M00 Series
3-terminal Fixed Voltage Regulators
Features
* * * * * * Output current less than 500 mA Various output voltages: 5, 6, 7, 8, 9, 12, 15, 18, 20, and 24 V No external compensation circuit required Built-in current control circuit protects elements from destruction by short circuit Builting chip junction temperature limiting circuit protects elements from thermal destruction Builting internal power dissipation limiting circuit protects transistors in output stage
Ordering Information
Type HA178M00PJ Series HA178M00P Series HA178M00 Series Application Automotive use Industrial use Commercial use Package TO - 220AB
Output Voltage Accuracy Grade
Type No. HA178M05 HA178M12 Grade None A B C Accuracy 4 2 3 +2, -4
HA178M00 Series
Pin Arrangement
4
Mark
1. Input 2. Common 3. Output 4. Common 123 (Top View)
Block Diagram
INPUT Over Current Protection OUTPUT
Error Amp. Temperature Protection
Vref = 2.5 V Reference Voltage COMMON
Standard Circuit
Input C1 0.33 F Output C2 0.1 F
HA178Mxx
2
HA178M00 Series
Absolute Maximum Ratings (Ta = 25C)
Item Input voltage Input voltage Power dissipation Operating temperature Junction temperature Storage temperature Symbol VIN VIN PT Topr Tj Tstg Rating 35 40 7.5 -20 to +75 -20 to +125 -55 to +125 Unit V V W C C C Notes 1 2 3
Notes: 1. For HA178M05P-HA178M18P, HA178M05-HA178M18 2. For HA178M20P, HA178M24P, HA178M20, HA178M24 3. Follow derating curve
8 Max. Power Dissipation P T(max) (W) 6 4 2 (2) (1) (1) Infinite heat sink (2) 5C/W heat sink (3) 15C/W heat sink (4) No heat sink Thermal resistance jc = 3.0C/W (typ) 5.0C/W (max) ja = 62C/W (typ) 72C/W (max)
(3) (4) 20 40 60 80 100 120 140
) Include fixed thermal resistance
0
Ambient Temperature Ta(C)
3
HA178M00 Series
HA178M05P/PJ, HA178M05 Electrical Characteristics (VIN = 10 V, IOUT = 350 mA, 0C Tj 125C, CIN = 0.33 F, COUT = 0.1 F, unless otherwise specified)
Item Output voltage Symbol VOUT Min 4.8 4.75 Line regulation VO Line -- -- Load regulation VO Load -- -- Quiescent current Quiescent current change IQ IQ -- -- -- Output noise voltage Ripple rejection ratio Vn RREJ -- -- -- Dropout voltage Output short-circuit current Peak output current Temperature coefficient of output voltage Vdrop I OS Io peak VOUT/Tj -- -- -- -- Typ 5.0 -- 3 1 20 10 4.5 -- -- 40 80 80 2.0 300 700 -1.0 Max 5.2 5.25 100 50 100 50 6.0 0.8 0.5 -- -- -- -- -- -- -- V mA mA V dB mA mA mV Tj = 25C mV Unit V Test Conditions Tj = 25C 7 V VIN 20 V, 5 mA IOUT 350 mA, PT 7.5 W Tj = 25C 7 V VIN 25 V, I OUT = 200 mA 8 V VIN 25 V, I OUT = 200 mA 5 mA IOUT 500 mA 5 mA IOUT 200 mA Tj = 25C, IOUT = 0 8 V VIN 25 V, I OUT = 200 mA 5 mA IOUT 350 mA Ta = 25C, 10 Hz f 100 kHz f = 120 Hz Tj = 25C I OUT = 100 mA I OUT = 300 mA
I OUT = 350 mA, Tj = 25C Tj = 25C, VIN = 35 V Tj = 25C
mV/C I OUT = 5 mA, 0C Tj 125C
4
HA178M00 Series
HA178M06P/PJ, HA178M06 Electrical Characteristics (VIN = 11 V, IOUT = 350 mA, 0C Tj 125C, C IN = 0.33 F, COUT = 0.1 F, unless otherwise specified)
Item Output voltage Symbol VOUT Min 5.75 5.7 Line regulation VO Line -- -- Load regulation VO Load -- -- Quiescent current Quiescent current change IQ IQ -- -- -- Output noise voltage Ripple rejection ratio Vn RREJ -- -- -- Dropout voltage Output short-circuit current Peak output current Temperature coefficient of output voltage Vdrop I OS Io peak VOUT/Vj -- -- -- -- Typ 6.0 -- 5 1.5 20 10 4.5 -- -- 45 80 80 2.0 270 700 -0.5 Max 6.25 6.3 120 60 120 60 6.0 0.8 0.5 -- -- -- -- -- -- -- V mA mA V dB mA mA mV Tj = 25C mV Unit V Test Conditions Tj = 25C 8 V VIN 21 V, 5 mA IOUT 350 mA, PT 7.5 W Tj = 25C 8 V VIN 25 V, I OUT = 200 mA 9 V VIN 25 V, I OUT = 200 mA 5 mA IOUT 500 mA 5 mA IOUT 200 mA Tj = 25C, IOUT = 0 9 V VIN 25 V, I OUT = 200 mA 5 mA IOUT 350 mA Ta = 25C, 10 Hz f 100 kHz f = 120 Hz Tj = 25C I OUT = 100 mA I OUT = 300 mA
I OUT = 350 mA, Tj = 25C Tj = 25C, VIN = 35 V Tj = 25C
mV/C I OUT = 5 mA, 0C Tj 125C
5
HA178M00 Series
HA178M07P/PJ, HA178M07 Electrical Characteristics (VIN = 12.5 V, IOUT = 350 mA, 0C Tj 125C, C IN = 0.33 F, COUT = 0.1 F, unless otherwise specified)
Item Output voltage Symbol VOUT Min 6.72 6.65 Line regulation VO Line -- -- Load regulation VO Load -- -- Quiescent current Quiescent current change IQ IQ -- -- -- Output noise voltage Ripple rejection ratio Vn RREJ -- -- -- Dropout voltage Output short-circuit current Peak output current Temperature coefficient of output voltage Vdrop I OS Io peak VOUT/Tj -- -- -- -- Typ 7.0 -- 5.5 1.7 23 10 4.6 -- -- 48.5 80 80 2.0 260 700 -0.5 Max 7.28 7.35 140 70 140 70 6.0 0.8 0.5 -- -- -- -- -- -- -- V mA mA V dB mA mA mV Tj = 25C mV Unit V Test Conditions Tj = 25C 9 V VIN 22 V, 5 mA IOUT 350 mA, PT 7.5 W Tj = 25C 9 V VIN 25 V, I OUT = 200 mA 10 V VIN 25 V, I OUT = 200 mA 5 mA IOUT 500 mA 5 mA IOUT 200 mA Tj = 25C, IOUT = 0 10 V VIN 25 V, I OUT = 200 mA 5 mA IOUT 350 mA Ta = 25C, 10 Hz f 100 kHz f = 120 Hz Tj = 25C I OUT = 100 mA I OUT = 300 mA
I OUT = 350 mA, Tj = 25C Tj = 25C, VIN = 35 V Tj = 25C
mV/C I OUT = 5 mA, 0C Tj 125C
6
HA178M00 Series
HA178M08P/PJ, HA178M08 Electrical Characteristics (VIN = 14 V, IOUT = 350 mA, 0C Tj 125C, CIN = 0.33 F, COUT = 0.1 F, unless otherwise specified)
Item Output voltage Symbol VOUT Min 7.7 7.6 Line regulation VO Line -- -- Load regulation VO Load -- -- Quiescent current Quiescent current change IQ IQ -- -- -- Output noise voltage Ripple rejection ratio Vn RREJ -- -- -- Dropout voltage Output short-circuit current Peak output current Temperature coefficient of output voltage Vdrop I OS Io peak VOUT/Tj -- -- -- -- Typ 8.0 -- 6.0 2.0 25 10 4.6 -- -- 52 80 80 2.0 250 700 -0.5 Max 8.3 8.4 160 80 160 80 6.0 0.8 0.5 -- -- -- -- -- -- -- V mA mA V dB mA mA mV Tj = 25C mV Unit V Test Conditions Tj = 25C 10.5 V VIN 23 V, 5 mA IOUT 350 mA, PT 7.5 W Tj = 25C 10.5 V VIN 25 V, I OUT = 200 mA 11 V VIN 25 V, I OUT = 200 mA 5 mA IOUT 500 mA 5 mA IOUT 200 mA Tj = 25C, IOUT = 0 10.5 V VIN 25 V, I OUT = 200 mA 5 mA IOUT 350 mA Ta = 25C, 10 Hz f 100 kHz f = 120 Hz Tj = 25C I OUT = 100 mA I OUT = 300 mA
I OUT = 350 mA, Tj = 25C Tj = 25C, VIN = 35 V Tj = 25C
mV/C I OUT = 5 mA, 0C Tj 125C
7
HA178M00 Series
HA178M09P/PJ, HA178M09 Electrical Characteristics (VIN = 15 V, IOUT = 350 mA, 0C Tj 125C, CIN = 0.33 F, COUT = 0.1 F, unless otherwise specified)
Item Output voltage Symbol VOUT Min 8.64 8.55 Line regulation VO Line -- -- Load regulation VO Load -- -- Quiescent current Quiescent current change IQ IQ -- -- -- Output noise voltage Ripple rejection ratio Vn RREJ -- -- -- Dropout voltage Output short-circuit current Peak output current Temperature coefficient of output voltage Vdrop I OS Io peak VOUT/Tj -- -- -- -- Typ 9.0 -- 7.0 2.5 25 10 4.6 -- -- 52 80 80 2.0 250 700 -0.9 Max 9.36 Unit V Test Conditions Tj = 25C 11.5 V VIN 24 V, 5 mA IOUT 350 mA, PT 7.5 W mV Tj = 25C 11.5 V VIN 25 V, I OUT = 200 mA 12 V VIN 25 V I OUT = 200 mA mV Tj = 25C 5 mA IOUT 500 mA 5 mA IOUT 200 mA mA mA Tj = 25C, IOUT = 0 12 V VIN 25 V, I OUT = 200 mA 5 mA IOUT 350 mA V dB Ta = 25C, 10 Hz f 100 kHz f = 120 Hz Tj = 25C V mA mA I OUT = 100 mA I OUT = 300 mA
9.45
180 90 200 100 6.0 0.8 0.5 -- -- -- -- -- -- --
I OUT = 350 mA, Tj = 25C Tj = 25C, VIN = 35 V Tj = 25C
mV/C I OUT = 5 mA, 0C Tj 125C
8
HA178M00 Series
HA178M12P/PJ, HA178M12 Electrical Characteristics (VIN = 19 V, IOUT= = 350 mA, 0C Tj 125C, CIN = 0.33 F, COUT = 0.1 F, unless otherwise specified)
Item Output voltage Symbol VOUT Min 11.5 11.4 Line regulation VO Line -- -- Load regulation VO Load -- -- Quiescent current Quiescent current change IQ IQ -- -- -- Output noise voltage Ripple rejection ratio Vn RREJ -- -- -- Dropout voltage Output short-circuit current Peak output curren Temperature coefficient of output voltage Vdrop I OS Io peak VOUT/Tj -- -- -- -- Typ 12.0 -- 10 3.0 25 10 4.8 -- -- 75 80 80 2.0 240 700 -1.0 Max 12.5 12.6 240 120 240 120 6.0 0.8 0.5 -- -- -- -- -- -- -- V mA mA V dB mA mA mV Tj = 25C mV Unit V Test Conditions Tj = 25C 14.5 V VIN 27 V, 5 mA IOUT 350 mA, PT 7.5 W Tj = 25C 14.5 V VIN 30 V, I OUT = 200 mA 16 V VIN 30 V, I OUT = 200 mA 5 mA IOUT 500 mA 5 mA IOUT 200 mA Tj = 25C, IOUT = 0 14.5 V VIN 30 V, I OUT = 200 mA 5 mA IOUT 350 mA Ta = 25C, 10 Hz f 100 kHz f = 120 Hz Tj = 25C I OUT = 100 mA I OUT = 300 mA
I OUT = 350 mA, Tj = 25C Tj = 25C, VIN = 35 V Tj = 25C
mV/C I OUT = 5 mA, 0C Tj 125C
9
HA178M00 Series
HA178M15P/PJ, HA178M15 Electrical Characteristics (VIN = 23 V, IOUT = 350 mA, 0C Tj 125C, CIN = 0.33 F, COUT = 0.1 F, unless otherwise specified)
Item Output voltage Symbol VOUT Min 14.4 14.25 Line regulation VO Line -- -- Load regulation VO Load -- -- Quiescent current Quiescent current change IQ IQ -- -- -- Output noise voltage Ripple rejection ratio Vn RREJ -- -- -- Dropout voltage Output short-circuit current Peak output current Temperature coefficient of output voltage Vdrop I OS Io peak VOUT/Tj -- -- -- -- Typ 15.0 -- 11 3.0 25 10 4.8 -- -- 90 70 70 2.0 240 700 -1.0 Max 15.6 15.75 300 150 300 150 6.0 0.8 0.5 -- -- -- -- -- -- -- V mA mA V dB mA mA mV Tj = 25C mV Unit V Test Conditions Tj = 25C 17.5 V VIN 30 V, 5 mA IOUT 350 mA, PT 7.5 W Tj = 25C 17.5 V VIN 30 V, I OUT = 200 mA 20 V VIN 30 V, I OUT = 200 mA 5 mA IOUT 500 mA 5 mA IOUT 200 mA Tj = 25C, IOUT = 0 17.5 V VIN 30 V, I OUT = 200 mA 5 mA IOUT 350 mA Ta = 25C, 10 Hz f 100 kHz f = 120 Hz Tj = 25C I OUT = 100 mA I OUT = 300 mA
I OUT = 350 mA, Tj = 25C Tj = 25C, VIN = 35 V Tj = 25C
mV/C I OUT = 5 mA, 0C Tj 125C
10
HA178M00 Series
HA178M18P/PJ, HA178M18 Electrical Characteristics (VIN = 27 V, IOUT = 350 mA, 0C Tj 125C, CIN = 0.33 F, COUT = 0.1 F, unless otherwise specified)
Item Output voltage Symbol VOUT Min 17.3 17.1 Line regulation dVO Line -- -- Load regulation VO Load -- -- Quiescent current Quiescent current change IQ IQ -- -- -- Output noise voltage Ripple rejection ratio Vn RREJ -- -- -- Dropout voltage Output short-circuit current Peak output current Temperature coefficient of output voltage Vdrop I OS Io peak VOUT/Tj -- -- -- -- Typ 18.0 -- 15 5.0 25 10 4.8 -- -- 110 70 70 2.0 240 700 -1.0 Max 18.7 18.9 360 180 360 180 6.0 0.8 0.5 -- -- -- -- -- -- -- V mA mA V dB mA mA mV Tj = 25C mV Unit V Test Conditions Tj = 25C 21 V VIN 33 V, 5 mA IOUT 350 mA, PT 7.5 W Tj = 25C 21 V VIN 33 V, I OUT = 200 mA 24 V VIN 33 V, I OUT = 200 mA 5 mA IOUT 500 mA 5 mA IOUT 200 mA Tj = 25C, IOUT = 0 21 V VIN 35 V, I OUT = 200 mA 5 mA IOUT 350 mA Ta = 25C, 10 Hz f 100 kHz f = 120 Hz Tj = 25C I OUT = 100 mA I OUT = 300 mA
I OUT = 350 mA, Tj = 25C Tj = 25C, VIN = 35 V Tj = 25C
mV/C I OUT = 5 mA, 0C Tj 125C
11
HA178M00 Series
HA178M20P/PJ, HA178M20 Electrical Characteristics (VIN = 29 V, IOUT = 350 mA, 0C Tj 125C, CIN = 0.33 F, COUT = 0.1 F, unless otherwise specified)
Item Output voltage Symbol VOUT Min 19.2 19 Line regulation VO Line -- -- Load regulation VO Load -- -- Quiescent current Quiescent current change IQ IQ -- -- -- Output noise voltage Ripple rejection ratio Vn RREJ -- -- -- Dropout voltage Output short-circuit current Peak output current Temperature coefficient of output voltage Vdrop I OS Io peak VOUT/Tj -- -- -- -- Typ 20 -- 17 6.0 30 10 4.9 -- -- 110 70 70 2.0 240 700 -1.1 Max 20.8 21 400 200 400 200 6.0 0.8 0.5 -- -- -- -- -- -- -- V mA mA V dB mA mA mV Tj = 25C mV Unit V Test Conditions Tj = 25C 23 V VIN 35 V, 5 mA IOUT 350 mA, PT 7.5 W Tj = 25C 23 V VIN 35 V, I OUT = 200 mA 24 V VIN 35 V, I OUT = 200 mA 5 mA IOUT 500 mA 5 mA IOUT 200 mA Tj = 25C, IOUT = 0 23 V VIN 35 V, I OUT = 200 mA 5 mA IOUT 350 mA Ta = 25C, 10 Hz f 100 kHz f = 120 Hz Tj = 25C I OUT = 100 mA I OUT = 300 mA
I OUT = 350 mA, Tj = 25C Tj = 25C, VIN = 35 V Tj = 25C
mV/C I OUT = 5 mA, 0C Tj 125C
12
HA178M00 Series
HA178M24P/PJ, HA178M24 Electrical Characteristics (VIN = 33 V, IOUT = 350 mA, 0C Tj 125C, CIN = 0.33 F, COUT = 0.1 F, unless otherwise specified)
Item Output voltage Symbol VOUT Min 23.0 22.8 VO Line Typ 24.0 -- Max 25.0 25.2 Unit V Test Conditions Tj = 25C 27 V VIN 38 V, 5 mA IOUT 350 mA, PT 7.5 W Line regulation -- -- Load regulation VO Load -- -- Quiescent current Quiescent current change IQ IQ -- -- -- Output noise voltage Ripple rejection ratio Vn RREJ -- -- -- Dropout voltage Output short-circuit current Peak output current Vdrop I OS Io peak -- -- -- -- 18 6.0 30 10 5.0 -- -- 170 70 70 2.0 240 700 -1.2 480 240 480 240 8.0 0.8 0.5 -- -- -- -- -- -- -- V mA mA V dB mA mA mV Tj = 25C mV Tj = 25C 27 V VIN 38 V, I OUT = 200 mA 28 V VIN 38 V, I OUT = 200 mA 5 mA IOUT 500 mA 5 mA IOUT 200 mA Tj = 25C, IOUT = 0 27 V VIN 38 V, I OUT = 200 mA 5 mA IOUT 350 mA Ta = 25C, 10 Hz f 100 kHz f = 120 Hz Tj = 25C I OUT = 100 mA I OUT = 300 mA
I OUT = 350 mA, Tj = 25C Tj = 25C, VIN = 35 V Tj = 25C
Temperature coefficient VOUT/Tj of output voltage
mV/C I OUT = 5 mA, 0C Tj 125C
13
HA178M00 Series
Characteristic Curves
Output Voltage vs. Operating Junction Temperature (1) Ripple Rejection Ratio RREJ (dB) 5.2 Output Voltage Vout (V) HA178M05 VIN = 10 V Iout = 5mA 5.0 80 Iout = 300 mA
Ripple Rejection Ratio vs. Frequency
60
4.8 0 25 50 75 100 125 Operating Junction Temperature Tj (C)
40 100
1k 10 k Frequency f (Hz)
100 k
Output Voltage vs. Output Current Output Voltage Vout (V) HA178M24 VIN = 33 V 20 HA178M15 VIN = 23 V HA178M05 VIN = 10 V Ta = 25C 0 0.5 1.0 Output Current Iout (A) 1.5 Peak Output Current IOP (A) 30 1.5
Peak Output Current vs. Dropout Voltage HA178M05 Tj = 25C
1.0
10
0.5
0
0 0 10 20 Dropout Voltage VDROP (V) 30
Output Voltage vs. Input Voltage (1) 10 Output Voltage Vout (V) Output Voltage Vout (V) HA178M05 Tj = 25C 25 20 15 10 5 0 0 10 20 30 Input Voltage VIN (V) 40 0
Output Voltage vs. Input Voltage (2) Iout = 500 mA Tj = 25C HA178M24
5 Iout = 0.5 A 0.35 A 0.1 A 0
HA178M15
HA178M05 10 20 30 Input Voltage VIN (V) 40
14
HA178M00 Series
Quiescent Operating Current vs. Input Voltage Quiescent Operating Current IQ (mA) 6 5 4 3 2 1 0 0 10 20 30 Input Voltage VIN (V) 40 HA178M05 Iout = 0 mA Tj = 25C Output Voltage Vout (V) 15.6 Output Voltage vs. Operating Junction Temperature (2) HA178M15 VIN = 23 V Iout = 5 mA
15.0
14.4 0 25 50 75 100 125 Operating Junction Temperature Tj (C)
Output Voltage vs. Operating Junction Temperature (3) 25.0 Output Voltage Vout (V) HA178M24 VIN = 33 V Iout = 5 mA
24.0
23.0 0 25 50 75 100 125 Operating Junction Temperature Tj (C)
15
HA178M00 Series
Package Dimensions
Unit: mm
11.5 MAX 2.79 0.2 10.16 0.2 9.5 8.0 3.6 -0.08
+0.1
4.44 0.2 1.26 0.15
6.4
+0.2 -0.1
18.5 0.5
15.0 0.3
1.27
2.7 MAX 14.0 0.5 1.5 MAX
7.8 0.5
0.76 0.1
2.54 0.5
2.54 0.5
0.5 0.1
Hitachi Code JEDEC EIAJ Mass (reference value)
TO-220AB Conforms Conforms 1.8 g
16
HA178M00 Series
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi's or any third party's patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party's rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi's sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi's sales office for any questions regarding this document or Hitachi semiconductor products.
Hitachi, Ltd.
Semiconductor & Integrated Circuits. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109
URL
NorthAmerica : http:semiconductor.hitachi.com/ Europe : http://www.hitachi-eu.com/hel/ecg Asia (Singapore) : http://www.has.hitachi.com.sg/grp3/sicd/index.htm Asia (Taiwan) : http://www.hitachi.com.tw/E/Product/SICD_Frame.htm Asia (HongKong) : http://www.hitachi.com.hk/eng/bo/grp3/index.htm Japan : http://www.hitachi.co.jp/Sicd/indx.htm For further information write to:
Hitachi Semiconductor (America) Inc. 179 East Tasman Drive, San Jose,CA 95134 Tel: <1> (408) 433-1990 Fax: <1>(408) 433-0223 Hitachi Europe GmbH Electronic components Group Dornacher Strae 3 D-85622 Feldkirchen, Munich Germany Tel: <49> (89) 9 9180-0 Fax: <49> (89) 9 29 30 00 Hitachi Europe Ltd. Electronic Components Group. Whitebrook Park Lower Cookham Road Maidenhead Berkshire SL6 8YA, United Kingdom Tel: <44> (1628) 585000 Fax: <44> (1628) 778322 Hitachi Asia Pte. Ltd. 16 Collyer Quay #20-00 Hitachi Tower Singapore 049318 Tel: 535-2100 Fax: 535-1533 Hitachi Asia Ltd. Taipei Branch Office 3F, Hung Kuo Building. No.167, Tun-Hwa North Road, Taipei (105) Tel: <886> (2) 2718-3666 Fax: <886> (2) 2718-8180 Hitachi Asia (Hong Kong) Ltd. Group III (Electronic Components) 7/F., North Tower, World Finance Centre, Harbour City, Canton Road, Tsim Sha Tsui, Kowloon, Hong Kong Tel: <852> (2) 735 9218 Fax: <852> (2) 730 0281 Telex: 40815 HITEC HX
Copyright ' Hitachi, Ltd., 1998. All rights reserved. Printed in Japan.
17

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