BP5842 Datasheet, PDF (1/3 Pages) Rohm – High-power LED Drivers for Ιllumination

High-power LED Drivers for Ιllumination
AC100V input, constant current
BP5842
Absolute Maximum Ratings
Parameter
Input voltage
Output voltage
Withstand voltage
Symbol
Vi
Vo
BV
Maximum surface temperature Tcmax
Limits
170
4
1.8
105
Operating temperature range Topr
Storage temperature range Tstg
−20 to +80
−25 to +85
Unit
V DC
Vpk
kV ^{1s (between primary and secondary)}
°C ^{Ambient temperature + module}
self-heating Tcmax
°C ^{Refer to derating curve}
°C
Electrical Characteristics
Parameter Symbol Min. Typ. Max. Unit
Conditions
Input voltage range Vi 113 141 170 V
Output current
Io
Output voltage range Vo
Output ripple voltage Vp
Power conversion efficiency η
0.91 0.96
2.5
−
−
−
79 84
1.0 A Vi=141V, R1=0.3Ω (1%)
4
V Vi=141V, lo=0.96A
0.5 Vp-p Vi=141V, lo=0.96A
−
% Vi=141V, Vo=4V, lo=0.96A
∗1 Maximum output current varies depending on ambient temperature ; please refer to derating curve.
∗2 Spike noise is not included in output ripple voltage.
Dimensions (Unit : mm)
32.5±0.4
15.1Max.
2.6±1.4
1 345
9 10 11
0.5±0.1
P=2.54±0.2
2.54x10=25.4 (Typ.)
4.5Max.
0.25±0.05
10.6Max.
Derating Curve
Derating Curve
5
4
3
2
Operation Range
1
0
-30 -20 -10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(°C)
Application circuit
BP5842
BP5842
Be sure to use fuse for safety
ZNR1 C3
D1
LF1
C4
1 3 9 10 11
F1
R1
+
C2
C1
C5
External components setting
C1 : Input Capacitor
10µF/250V
C2 : Output Capacitor
40µF/25V Ceramics capacitor
R1 : Output current setting resistor 0.3Ω ±1 % 1/4W (lo=960mA)
C3, C4: Noise Removal
Capacitor
Please use the capacitor, if necessary.
Capacitance : 0.1µF to 0.22µF
Rated voltage : 250V or higher
C5 : Noise Removal Capacitor 2200pF (Basic insulation)
D1: Diode bridge
800V/1A
F1: Fuse
Fuse must be used for safety
LF1: Line Filter
10mH
ZNR1: Varistor
Varistor must be used. It protects this
part from lighting surge and static electricity.
Pin No.
Function
1 Input terminal (+)
2 Skip
3 Input terminal (−)
4 NC
5 NC
6 Skip
7 Skip
8 Skip
9 Output capacitor connection terminal
10 LED connection terminal (cathode)
11 LED connection terminal (anode)
Output Characteristics
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
1
Output characteristics
R1=0.3Ω
Operation Range
R1=
2
3
4
5
Output Voltage(V)
Setting current
Output current-Setting resistor
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.650 0.700 0.750 0.800 0.850 0.900 0.950 1.000
Output current : (A)
How to calculate R1
R1=0.04983/(0.33 lo-0.151)
lo : Output current