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PDF BD9203EFV Data sheet ( Hoja de datos )

Número de pieza BD9203EFV
Descripción Silicon Monolithic Integrated Circuit
Fabricantes ROHM Semiconductor 
Logotipo ROHM Semiconductor Logotipo



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STRUCTURE
PRODUCT
TYPE
FEATURE
Silicon Monolithic Integrated Circuit
White LED Driver for LCD Backlights with step-up DC/DC controller
BD9203EFV
6CH LED current driver up to 150mA/CH built-in *2
Over voltage protection (OVP), Short circuit protection (SCP), LED open and short detection
Step-up DC/DC controller built-in
PWM and DC Dimming
Programmable timer latch and soft-start period by external capacitor
Over voltage protection (OVP), Short current protection (SCP), LED open and short detection
Under voltage lock out (UVLO)
HTSSOP-B28 package
ABSOLUTE MAXIMUM RATINGS (Ta=25)
PARAMETER
Symbol
Power Supply Voltage
VCC
VREF5V
STB Voltage
STB
LED Output Voltage
LED16
FAIL Output Voltage
FAIL
SEL, UVLO, PWM1, PWM2, RT,
Pin Voltage
SS, SLOPE, ISET, VREF,
CP, FB, OVP, CS
N
Power Dissipation
Pd
Operating Temperature Range
Topr
Storage Temperature Range
Tstg
LED Maximum Current
ILED
*1 Pd derated at 26.4 mW/for temperature above Ta=25,
mounted on 70mm×70mm×1.6mm 2 layer(cupper area 70mm×70mm)glass-epoxy PCB.
*2 This is the constant current value per 1ch. Please perform setting of the constant current value
in the range that is not beyond a value of Pd.
This product is not designed for protection against radioactive rays.
Limit
36
7
36
40
40
7
15
3.30 *1
-40+85
-55+150
150 *2
Unit
V
V
V
V
V
V
V
W
mA
OPERATING CONDITIONS (Ta=25)
PARAMETER
Power Supply Voltage
CT Oscillation Frequency Range
VREF input voltage range
Symbol
VCC
FCT
VREF
Limit
935
1001000
0VREF5V
Unit
V
kHz
V
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BD9203EFV pdf
Notice
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 responsibility 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 responsibility 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, commu-
nication devices, electronic appliances and amusement devices).
The Products specified in this document 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 the 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 intended 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.
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Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
R1010A

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