High-power LED Drivers for
Ιllumination
AC100V input, constant current
BP5843
Absolute Maximum Ratings
Parameter
Input voltage
Output voltage
Withstand voltage
Maximum surface temperature
Operating temperature range
Storage temperature range
Symbol
Vi
Vo
BV
Tcmax
Topr
Tstg
Limits
170
12
1.8
105
−20
to +80
−25
to +85
Unit
V
Vpk
kV
°C
°C
°C
DC
24.5±0.5
Dimensions (Unit :
mm
)
32.5±0.4
15.1Max.
1s (between primary and secondary)
Ambient temperature + module
self-heating Tcmax
Refer to derating curve
4.0±1.0
1
3 4 5
0.5±0.1
9 10 11
P=2.54
±
0.2
MARKING SIDE
0.25±0.05
4.5Max.
10.6Max.
2.6±1.4
2.54x10=25.4 (Typ.)
Electrical Characteristics
Symbol Min.
Parameter
Input voltage range
113
Vi
Output current
332
Io
Output voltage range Vo
2.5
Output ripple voltage
−
Vp
Power conversion efficiency
80
η
Typ.
141
350
−
−
85
Max.
170
369
12
0.5
−
Unit
V
mA
V
Vp-p
%
Conditions
Vi=141V, R1=0.82Ω (1%)
Vi=141V, lo=350mA
Vi=141V, lo=350mA
Vi=141V, Vo=12V, lo=350mA
Derating Curve
5
Output Power (W)
4
3
2
1
0
-30 -20 -10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(
°C
)
Operation Range
Derating Curve
∗1
Maximum output current varies depending on ambient temperature ; please refer to derating curve.
∗2
Spike noise is not included in output ripple voltage.
Application circuit
BP5843
BP5843
Be sure to use fuse for safety
F1
R1
D1
LF1
ZNR1
C3
C4
C5
+
C1
C2
Pin No.
1
2
3
4
5
6
7
8
9
10
11
Function
Input terminal (+)
Skip
Input terminal (−)
NC
NC
Skip
Skip
Skip
Output capacitor connection terminal
LED connection terminal (cathode)
LED connection terminal (anode)
Output Characteristics
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
2
Output characteristics
R1=0.91Ω
Operation Range
R1=
Output Current (A)
1
3
9
10 11
4
6
8 10 12
Output Voltage(
V
)
14
16
Setting current
Setting resistor : R1(Ω)
External components setting
C1 : Input Capacitor
C2 : Output Capacitor
R1 : Output current setting resistor
C3, C4: Noise Removal
Capacitor
C5 : Noise Removal Capacitor
D1: Diode bridge
F1: Fuse
LF1: Line Filter
ZNR1: Varistor
10µF/250V
40µF/25V Ceramics capacitor
0.82Ω
±1
% 1/4W (lo=350mA)
Please use the capacitor, if necessary.
Capacitance : 0.1µF to 0.22µF
Rated voltage : 250V or higher
2200pF (Basic insulation)
800V/1A
Fuse must be used for safety
10mH
Varistor must be used. It protects this
part from lighting surge and static electricity.
Output current-Setting resistor
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.24 0.26 0.28 0.30 0.32 0.34 0.36
Output current : (A)
How to calculate R1
R1=0.13741/(0.91 x lo-0.151)
lo :
Output current
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level
of reliability and the malfunction of which would directly endanger human life (such as medical
instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers
and other safety devices), please be sure to consult with our sales representative in advance.
It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance
of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow
for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in
order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM
cannot be held responsible for any damages arising from the use of the products under conditions out of the
range of the specifications or due to non-compliance with the NOTES specified in this catalog.
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
www.rohm.com
Copyright ©
2007 ROHM CO.,LTD.
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/
EUPOPE
/
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