High-power LED Drivers for Ιllumination
AC100V input, constant current
BP5843
Dimensions (Unit : mm)
Absolute Maximum Ratings
Parameter
Input voltage
Symbol
Vi
Limits
170
12
Unit
V
32.5 0.4
15.1Max.
DC
Output voltage
Withstand voltage
Vo
Vpk
kV
1s (between primary and secondary)
Ambient temperature + module
BV
1.8
105
°C
Maximum surface temperature
Tcmax
self-heating
Tcmax
Refer to derating curve
−20 to +80
−25 to +85
Operating temperature range
Storage temperature range
Topr
Tstg
°C
°C
1
3
4
5
0.5 0.1
P=2.54 0.2
9 10 11
0.25 0.05
10.6Max.
2.6 1.4
2.54x10=25.4 (Typ.)
4.5Max.
Electrical Characteristics
Parameter
Symbol Min.
Typ.
141
350
−
−
85
Max.
170
369
12
0.5
−
Conditions
Unit
Derating Curve
V
mA
V
Vp-p
%
Input voltage range
Output current
Output voltage range
Output ripple voltage
Power conversion efficiency
113
332
2.5
−
Vi
Io
Vo
Vp
η
Derating Curve
5
Vi=141V, R1=0.82Ω (1%)
Vi=141V, lo=350mA
4
3
Vi=141V, lo=350mA
Operation Range
Vi=141V, Vo=12V, lo=350mA
2
1
80
∗1 Maximum output current varies depending on ambient temperature ; please refer to derating curve.
∗2 Spike noise is not included in output ripple voltage.
0
-30 -20 -10
0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(°C)
Application circuit
Output Characteristics
Pin No.
1
2
3
4
5
6
7
8
Function
Input terminal (+)
Output characteristics
BP5843
0.40
BP5843
R1=0.91Ω
Skip
0.35
Input terminal (−)
0.30
NC
NC
Skip
Skip
Operation Range
Be sure to use fuse for safety
1
3
9
10 11
0.25
0.20
R1=
F1
0.15
0.10
0.05
0.00
Skip
R1
9
10
11
Output capacitor connection terminal
LED connection terminal (cathode)
LED connection terminal (anode)
D1
LF1
0
2
4
6
8
10 12 14 16
C2
+
C1
Output Voltage(V)
ZNR1
C3
C4
C5
Setting current
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
External components setting
C1 : Input Capacitor
10µF/250V
40µF/25V Ceramics capacitor
0.82Ω 1% 1/4W (lo=350mA)
C2 : Output Capacitor
R1 : Output current setting resistor
Please use the capacitor, if necessary.
Capacitance : 0.1µF to 0.22µF
Rated voltage : 250V or higher
C3, C4: Noise Removal
Capacitor
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
C5 : Noise Removal Capacitor 2200pF (Basic insulation)
D1: Diode bridge
F1: Fuse
800V/1A
Fuse must be used for safety
10mH
LF1: Line Filter
ZNR1: Varistor
Varistor must be used. It protects this
part from lighting surge and static electricity.