LED Driver
BCR 320U E6327 / BCR 321U E6327
Datasheet
Revision 2.1, 2015-01-28
Power Management & Multimarket
Edition 2015-01-28
Published by
Infineon Technologies AG
81726 Munich, Germany
©
2015 Infineon Technologies AG
All Rights Reserved.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee of conditions or
characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any
information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties
and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights
of any third party.
Information
For further information on technology, delivery terms and conditions and prices, please contact the nearest
Infineon Technologies Office (www.infineon.com).
Warnings
Due to technical requirements, components may contain dangerous substances. For information on the types in
question, please contact the nearest Infineon Technologies Office.
Infineon Technologies components may be used in life-support devices or systems only with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support
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be endangered.
BCR 320U E6327 / BCR 321U E6327
Revision History
Page or Item
All
Page 7
Subjects (major changes since previous revision)
Using full sales names BCR 320U E6327 / BCR 321U E6327 instead of short form BCR320U
/ BCR321U
Halogen free logo removed
Revision 2.1, 2015-01-28
Trademarks of Infineon Technologies AG
AURIX™, C166™, CanPAK™, CIPOS™, CIPURSE™, EconoPACK™, CoolMOS™, CoolSET™,
CORECONTROL™, CROSSAVE™, DAVE™, DI-POL™, EasyPIM™, EconoBRIDGE™, EconoDUAL™,
EconoPIM™, EconoPACK™, EiceDRIVER™, eupec™, FCOS™, HITFET™, HybridPACK™, I²RF™,
ISOFACE™, IsoPACK™, MIPAQ™, ModSTACK™, my-d™, NovalithIC™, OptiMOS™, ORIGA™,
POWERCODE™; PRIMARION™, PrimePACK™, PrimeSTACK™, PRO-SIL™, PROFET™, RASIC™,
ReverSave™, SatRIC™, SIEGET™, SINDRION™, SIPMOS™, SmartLEWIS™, SOLID FLASH™, TEMPFET™,
thinQ!™, TRENCHSTOP™, TriCore™.
Other Trademarks
Advance Design System™ (ADS) of Agilent Technologies, AMBA™, ARM™, MULTI-ICE™, KEIL™,
PRIMECELL™, REALVIEW™, THUMB™, µVision™ of ARM Limited, UK. AUTOSAR™ is licensed by AUTOSAR
development partnership. Bluetooth™ of Bluetooth SIG Inc. CAT-iq™ of DECT Forum. COLOSSUS™,
FirstGPS™ of Trimble Navigation Ltd. EMV™ of EMVCo, LLC (Visa Holdings Inc.). EPCOS™ of Epcos AG.
FLEXGO™ of Microsoft Corporation. FlexRay™ is licensed by FlexRay Consortium. HYPERTERMINAL™ of
Hilgraeve Incorporated. IEC™ of Commission Electrotechnique Internationale. IrDA™ of Infrared Data
Association Corporation. ISO™ of INTERNATIONAL ORGANIZATION FOR STANDARDIZATION. MATLAB™ of
MathWorks, Inc. MAXIM™ of Maxim Integrated Products, Inc. MICROTEC™, NUCLEUS™ of Mentor Graphics
Corporation. MIPI™ of MIPI Alliance, Inc. MIPS™ of MIPS Technologies, Inc., USA. muRata™ of MURATA
MANUFACTURING CO., MICROWAVE OFFICE™ (MWO) of Applied Wave Research Inc., OmniVision™ of
OmniVision Technologies, Inc. Openwave™ Openwave Systems Inc. RED HAT™ Red Hat, Inc. RFMD™ RF
Micro Devices, Inc. SIRIUS™ of Sirius Satellite Radio Inc. SOLARIS™ of Sun Microsystems, Inc. SPANSION™
of Spansion LLC Ltd. Symbian™ of Symbian Software Limited. TAIYO YUDEN™ of Taiyo Yuden Co.
TEAKLITE™ of CEVA, Inc. TEKTRONIX™ of Tektronix Inc. TOKO™ of TOKO KABUSHIKI KAISHA TA. UNIX™
of X/Open Company Limited. VERILOG™, PALLADIUM™ of Cadence Design Systems, Inc. VLYNQ™ of Texas
Instruments Incorporated. VXWORKS™, WIND RIVER™ of WIND RIVER SYSTEMS, INC. ZETEX™ of Diodes
Zetex Limited.
Last Trademarks Update 2011-11-11
Datasheet
3
Revision 2.1, 2015-01-28
BCR 320U E6327 / BCR 321U E6327
Table of Contents
Table of Contents
Table of Contents
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
List of Figures
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
List of Tables
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1
1.1
1.2
1.3
2
3
4
5
LED Driver
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
7
7
7
Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Application hints
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Terminology
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Datasheet
4
Revision 2.1, 2015-01-28
BCR 320U E6327 / BCR 321U E6327
List of Figures
List of Figures
Figure 1-1
Figure 3-1
Figure 3-2
Figure 3-3
Figure 3-4
Figure 3-5
Figure 3-6
Figure 3-7
Figure 3-8
Figure 3-9
Figure 3-10
Figure 3-11
Figure 3-12
Figure 3-13
Figure 3-14
Figure 3-15
Figure 3-16
Figure 3-17
Figure 3-18
Figure 3-19
Figure 3-20
Figure 3-21
Figure 3-22
Figure 3-23
Figure 4-1
Figure 4-2
Figure 5-1
Figure 5-2
Figure 5-3
Pin configuration and typical application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Total Power Dissipation P
tot
= f(T
S
). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Permissible Pulse Load R
thJS
= f(t
p
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Permissible Pulse Load P
totmax
/ P
totDC
= f(t
p
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
BCR 320U: Output Current versus V
out
I
out
= f(V
out
),
V
EN
= 12 V,
R
ext
= Parameter . . . . . . . . . . . . 13
BCR 320U: Output Current versus R
ext
I
out
= f(R
ext
),
V
EN
= 12 V,
V
out
= Parameter . . . . . . . . . . . . 13
BCR 320U: Output Current versus V
out
I
out
= f(V
out
),
V
EN
= 12 V,
R
ext
= open,
T
A
= Parameter . . . 14
BCR 320U: Output Current versus V
out
I
out
= f(V
out
),
V
EN
= 12 V,
R
ext
= 20
Ω,
T
A
= Parameter. . . . 14
BCR 320U: Output Current versus V
out
I
out
= f(V
out
),
V
EN
= 12 V,
R
ext
= 3
Ω,
T
A
= Parameter. . . . . 15
BCR 320U: Output Current versus V
EN
I
out
= f(V
EN
),
V
out
= 2 V,
R
ext
= open,
T
A
= Parameter . . . . 15
BCR 320U: Output Current versus V
EN
I
out
= f(V
EN
),
V
out
= 2 V,
R
ext
= 20
Ω,
T
A
= Parameter. . . . . 16
BCR 320U: Output Current versus V
EN
I
out
= f(V
EN
),
V
out
= 2 V,
R
ext
= 3
Ω,
T
A
= Parameter. . . . . . 16
BCR 320U: Output Current versus V
EN
I
out
= f(V
EN
),
V
out
= 2 V,
R
ext
= Parameter . . . . . . . . . . . . . 17
BCR 320U: Enable Current versus V
EN
I
EN
= f(V
EN
),
R
ext
= open,
I
out
= 0 A,
T
A
= Parameter . . . . . 17
BCR 321U: Output Current versus V
out
I
out
= f(V
out
),
V
EN
= 3.3 V,
R
ext
= Parameter . . . . . . . . . . . . 18
BCR 321U: Output Current versus R
ext
I
out
= f(R
ext
),
V
EN
= 3.3 V,
V
out
= Parameter . . . . . . . . . . . . 18
BCR 321U: Output Current versus V
out
I
out
= f(V
out
),
V
EN
= 3.3 V,
R
ext
= open,
T
A
= Parameter . . . 19
BCR 321U: Output Current versus V
out
I
out
= f(V
out
),
V
EN
= 3.3 V,
R
ext
= 20
Ω,
T
A
= Parameter . . . 19
BCR 321U: Output Current versus V
out
I
out
= f(V
out
),
V
EN
= 3.3 V,
R
ext
= 3
Ω,
T
A
= Parameter . . . . 20
BCR 321U: Output Current versus V
EN
I
out
= f(V
EN
),
V
out
= 2 V,
R
ext
= open,
T
A
= Parameter . . . . 20
BCR 321U: Output Current versus V
EN
I
out
= f(V
EN
),
V
out
= 2 V,
R
ext
= 20
Ω,
T
A
= Parameter. . . . . 21
BCR 321U: Output Current versus V
EN
I
out
= f(V
EN
),
V
out
= 2 V,
R
ext
= 3
Ω,
T
A
= Parameter. . . . . . 21
BCR 321U: Output Current versus V
EN
I
out
= f(V
EN
),
V
out
= 2 V,
R
ext
= Parameter . . . . . . . . . . . . . 22
BCR 321U: Enable Current versus V
EN
I
EN
= f(V
EN
),
R
ext
= open,
I
out
= 0 A,
T
A
= Parameter . . . . . 22
Application Circuit: Enabling / PWM by Micro Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Application Circuit: Enabling by Connecting to
V
S
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Package Outline for SC74 (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Package Footprint for SC74 (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Tape and Reel Information for SC74 (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Datasheet
5
Revision 2.1, 2015-01-28
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