bp5844 ROHM Co. Ltd., bp5844 Datasheet
bp5844
Manufacturer Part Number
bp5844
Description
Isolated High-power Led Driver For Illumination
Manufacturer
ROHM Co. Ltd.
Datasheet
1.BP5844.pdf
(4 pages)
www.rohm.com
©2010 ROHM Co., Ltd. All rights reserved.
Isolated High-power LED Driver for Illumination
100VAC Input/2.5V-12V (250-360mA) Output
BP5844
External Component Specifications
∗1 Maximum output current varies depending on ambient temperature. Refer to the derating curve.
∗2 Spike noise is not included in output ripple voltage.
PWM dimming is possible by configuring a phase control circuit at the input side.
In case of using PWM or phase
control dimming, please input the
PWM signals at the VCTL pin.
C1 : Input capacitor
C2 : Output capacitor
R1 : Output current setting resistor
C3,C4: Noise reduction capacitor
C5: Noise reduction capacitor
D1: Diode bridge
F1: FUSE
LF1: Line filter
ZNR1: Varistor
Input voltage
Output voltage (limits)
Output voltage (no load)
Output current
Output control terminal voltage
Withstand voltage
Maximum surface temperature
Operating temperature range
Storage temperature range
Input voltage range
Output current
Output voltage range
Output ripple voltage
Conversion efficiency
Absolute Maximum Ratings
Electrical Characteristics
Application Circuit Example
PWM dimming circuit
Phase control dimming circuit
PWM dimming signal
VoH 9V PWM dimming by
using the 11pin
VF X n 9V
Please verify operation and characteristics in the customer's circuit before actual usage.
Ensure that the load current does not exceed the maximum rating.
ZNR1
Parameter
AC100V
AC100V
ZNR1
Parameter
C3
C3
Use a fuse for safety.
LF1
LF1
∗3 Flickering may occur due to LED load. Please evaluate with the actual application to determine the frequency.
C4
C4
Symbol
D1
D1
Vp
Vo
Vi
Io
η
LED OFF Voltage
PWM Signal H level
PWM Signal L level
PWM Signal freqency
Min.
113
342
2.5
80
Symbol
10µF / 250V (general purpose)
47µF / 25V low impedance type
0.78Ω(0.22Ω+0.56Ω)±1% 1/4 (Io=360mA)
By changing R1 it is possible to adjust output voltage.
Refer the Output Voltage Setting graph at right
Use if required
adove 125V 0.1 to 0.22µF
2200pF(Products with basic isolation certification)
400V / 1A
Use a fuse for safety.
10mH
A varistor is required to protect against lightning surges
and static electricity.
Tcmax
1
VCTL
-
1
Topr
Tstg
+
Parameter
BV
F1
C1
Vo
Vo
Vi
Io
+
F1
C1
3
3
C5
BP5844
C5
Spec
8
BP5844
Typ.
141
360
85
8
-
-
R1
R1
9
9
10
+
Max.
10
C2
170
378
-20 to +80
-25 to +85
0.5
11
12
-
11
Limits
VoL
VCTL(H)
VCTL(L)
fosc
12.5
12.5
170
378
105
Symbol
1.8
12
Units
Vp-p
Output control
mA
terminal
%
V
V
3 Terminal Reg(5V)
6.5
Min.
90
3
0
IN OUT
-
Vi=141V,R1=0.78Ω
Vi=141V,Io=360mA
Vi=141V,Io=360mA
Vi=141V,Vo=12V,Io=360mA
COM
1/1
Spec
PWM signal
100
Units
6.9
Typ.
mA
5
kV
°C
°C
°C
-
V
V
V
V
Pin No.
4,5
6-7
10kΩ
10
11
1
2
3
9
8
computer
Conditions
Max.
132
7.3
0.5
Micro
10
Input terminal (+)
Skip
Input terminal (-)
N.C
Skip
Output capacitor connection terminal (-)
LED connection terminal (cathode)
LED connection terminal (anode)
VCTL terminal
Units Conditions
kHz
V
V
V
Terminal name
VoH 9V
∗3
∗1
∗2
3 . 9 M A X
Dimensions (Unit :
Derating Curve
Output Characteristics
Load Regulation
Output voltage setting
14.0
12.0
10.0
100
8.0
6.0
4.0
2.0
0.0
90
80
70
60
50
40
30
20
10
Output current-Setting resistor characteristic
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
5
4
3
2
1
0
-30 -20 -10
0.00
0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38
1
How to calculate setting resistor R1
R1=0.13741/(0.91 x lo-0.151)
lo : Output current
Note) A maximum output current is set to 360mA.
0
MARKING SIDE
3
Ambient Temperature Ta(
2.00
Operation Range
Operation Range
0.75 ±0.1
1 . 3 ± 0 . 2
(Vi=141V, R1=0.78 Ω , Ta=25
(Vi=141V, R1=0.78 Ω , Ta=25
100
Operation beyond this limit are prohibited.
2.54 � 10=25.4TYP.
4
CONVERSION EFFICIENCY
Data Sheet
0 10
4.00
Output Current Io[mA]
33.5MAX.
5
LOAD REGULATION
Output Voltage Vo[
Operation Range
Operation Range
Derating Curve
200
Output Current(A)
Operation Range
Operation Range
2010.01 - Rev.A
20
6.00
2 . 5 4 ± 0 . 2
300
8
30
8.00 10.00 12.00 14.00
9 1 0 1 1
40
400
50
°C
V]
60
mm
)
4.4MAX.
°C
500
70
°C
)
)
80
)
600
90
15.1MAX.
10.7MAX.
0 . 5 ± 0 . 1
Related parts for bp5844
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Schottky Barrier Diode
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
Schottky Barrier Diode
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
Schottky Barrier Diode
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
Shottky Barrier Diode
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
Schottky Barrier Diode
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
Schottky Barrier Diode
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
Switching Diodes
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
Switching Diodes
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
Band Switching Diode
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
General Purpose Dual Digital Transistors
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
4v Drive Nch Mosfet
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
General Purpose Transistor
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
Power Management Dual Transistors
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
General Purpose Dual Digital Transistors
Manufacturer:
ROHM Co. Ltd.
Datasheet:
Part Number:
Description:
General Purpose Dual Digital Transistors
Manufacturer:
ROHM Co. Ltd.
Datasheet:
bp5844 Summary of contents
Page 1
... Input terminal (-) Output control 4,5 N.C terminal F1 6-7 Skip R1 8 Output capacitor connection terminal (-) 9 LED connection terminal (cathode LED connection terminal (anode VCTL terminal C5 BP5844 Terminal Reg(5V OUT Micro R1 COM computer 10kΩ PWM signal Spec Parameter ...
Page 2
...
Page 3
...
Page 4
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 ...