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PDF BD9526AMUV Data sheet ( Hoja de datos )
| Número de pieza | BD9526AMUV | |
| Descripción | Silicon Monolithic Integrated Circuit | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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STRUCTURE
Silicon Monolithic Integrated Circuit
TYPE
Step down DC/DC converter controller for Laptop PC
PRODUCT SERIES
FEATURES
BD9526AMUV
■ Built in 2ch H3REG DC/DC converter controller
■ The Light load mode efficiency is improved by SLLM (Simple Light Load Mode)
■ Adjustable Switching Frequency (f=200kHz~500kHz)
■ Built in 3ch Linear Regulator
○Absolute Maximum ratings (Ta=25℃)
Parameter
Terminal voltage
Power dissipation 1
Power dissipation 2
Power dissipation 3
Power dissipation 4
Symbol
VIN1, VIN2, CTL
EXTVCC, FB1, FB2, Is+1, Is+2, MCTL
FS1, FS2, REF1, REF2, LG1,LG2,TEST1,TEST2
BOOT1, BOOT2
BOOT1-SW1, BOOT2-SW2, HG1-SW1, HG2-SW2
HG1
HG2
EN1, EN2
DGND, PGND1, PGND2
Pd1
Pd2
Pd3
Pd4
Limits
30 *1*2
7 *1*2
INTVCC+0.3 *1*2
35 *1*2
7 *1*2
BOOT1+0.3 *1*2
BOOT2+0.3 *1*2
6 *1*2
AGND±0.3 *1*2
0.38*3
0.88 *4
2.06 *5
4.56 *6
Operating temperature range
Topr
-10～+100
Storage temperature range Tstg -55～+150
Junction Temperature
Tjmax
+150
*1 Do not however exceed Pd.
*2 Instantaneous surge voltage, back electromotive force and voltage under less than 10% duty cycle.
*3 Reduced by 3.0mW for each increase in Ta of 1℃ over 25℃ (when don’t mounted on a heat radiation board )
*4 Reduced by 7.0mW for increase in Ta of 1℃ over 25℃. (when mounted on a board 70.0mm×70mm×1.6mm Glass-epoxy PCB
which has 1 layer. (Copper foil area : 0mm2))
*5 Reduced by 16.5mW for increase in Ta of 1℃ over 25℃. (when mounted on a board 70.0mm×70mm×1.6mm Glass-epoxy PCB
which has 4 layers. (1st and 4th copper foil area : 20.2mm2, 2nd and 3rd copper foil area : 5505mm2))
*6 Reduced by 36.5mW for increase in Ta of 1℃ over 25℃. (when mounted on a board 70.0mm×70mm×1.6mm Glass-epoxy PCB
which has 4 layers. (All copper foil area : 5505mm2))
www.DataSheet.co.kr
Unit
V
V
V
V
V
V
V
V
V
W
W
W
W
℃
℃
℃
○Operating supply voltage range (Ta=25℃)
Parameter
Symbol
MIN.
MAX.
Unit
VIN1,VIN2
7 25 V
EXTVCC
4.5 5.5 V
CTL -0.3 25 V
EN1, EN2
-0.3 5.5 V
Terminal voltage
BOOT1, BOOT2
4.5 30 V
BOOT1-SW1, BOOT2-SW2, HG1-SW1, HG2-SW2
-0.3
5.5 V
REF1, REF2
1 2.75 V
Is+1, Is+ 2, FB1, FB2
1.9 5.6 V
MCTL
-0.3 INTVCC+0.3 V
★ This product is not designed for protection against radioactive rays.
Status of this document
The Japanese version of this document is the official specification.
This translated version is intended only as a reference, to aid in understanding the official version.
If there are any differences between the original and translated versions of this document, the official Japanese language version takes priority.
REV. B
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
Appendix
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM
CO.,LTD.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you
wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM
upon request.
Examples of application circuits, circuit constants and any other information contained herein illustrate the
standard usage and operations of the Products. The peripheral conditions must be taken into account
when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document. However, should
you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no re-
sponsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and examples
of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to
use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no re-
sponsibility whatsoever for any dispute arising from the use of such technical information.
The Products specified in this document are intended to be used with general-use electronic equipment
or devices (such as audio visual equipment, office-automation equipment, communication devices, elec-
tronic appliances and amusement devices).
The Products are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or
malfunction for a variety of reasons.
Please be sure to implement in your equipment using thewww.DataSheet.co.kr Products safety measures to guard against the
possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as
derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your
use of any Product outside of the prescribed scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or system
which requires an extremely high level of reliability the failure or malfunction of which may result in a direct
threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment,
aerospace machinery, nuclear-reactor controller, fuel-controller or other safety device). ROHM shall bear
no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intend-
ed to be used for any such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may be controlled under
the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact your nearest sales office.
ROHM Customer Support System
THE AMERICAS / EUROPE / ASIA / JAPAN
www.rohm.com
Contact us : webmaster@ rohm.co.jp
Copyright © 2009 ROHM CO.,LTD.
21 Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan
TEL : +81-75-311-2121
FAX : +81-75-315-0172
Appendix-Rev4.0
Datasheet pdf - http://www.DataSheet4U.net/
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