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PDF BP5811 Data sheet ( Hoja de datos )
| Número de pieza | BP5811 | |
| Descripción | Broad output DC/DC Converter | |
| Fabricantes | ROHM Semiconductor | |
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Data Sheet
0 to 19V/300mA Output
Broad output DC/DC Converter(Non-isolated)
BP5811
Absolute Maximum Ratings
Parameter
Motor driving supply voltage
CTL input voltage
Maximum output current
Operating temperature range
Storage temperature range
Maximum surface temperature
Symbol
VMin
VCTL
Iopeak
Topr
Tstg
Tcmax
Limits
25
0.3 to 5.5
300
100
Unit
V
V
mA
°C
°C
°C
Recommended Action Conditions
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Motor driving supply voltage VMIN 19.0 20.0 21.0
V IO=300mA
CTL input voltage
Vctl 0
5.0 V
CTL input frequency
fctl
1 50 100 kHz
Electrical Characteristics
(Unless otherwise specified,VMIN=20V, IO=300mA. VCTL=5.0V, Ta=25°C)
Parameter
Symbol Min. Typ. Max. Unit
Output voltage
Output current
18.0 19.0 20.0 V
Vo 14.3 15.1 15.9
V
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6.76 7.35 7.94 V
Io 300 mA
Output ripple
Power conversion e fficiency
VP
0.05 0.15 Vp-p
88 93
%
Conditions
Application Circuit
BP5811
123
6789
VMin
C1
L1
C2
CTL
Be sure to use fuse for safety.
Pin No.
Function
1 Input terminal
2 N.C.
3 GND
4 Skip
5 Skip
6 Coil connection terminal
Vo 7 Coil connection terminal
8 Control terminal
9 Output voltage
External Component Specifications
FUSE: Fuse
C1: Input smoothing
capacitor
C2: Output smoothing
capacitor
L1: Power inductor
Use a quick-acting fuse (2.3A)
470 F/50V Low impedance
Recommended part : PM series (Nichicon)
470 F/50V Low impedance
Recommended part : PM series (Nichicon)
47 H, Rated current 1.2A or higher
Recommended part : TSL0808-470K1R2 (TDK)
Dimensions (Unit : mm)
Derating Curve
350
Vctl=5V
300
250 Vctl=4V
Derating Curve
200 Vctl=3V
150 Vctl=2V
100
Vctl=1V
50
0
-30 -20 -10 0 10 20 30 40 50 60 70 80 90
Ambient Temperature Ta(˚C)
Output Voltage Control
Characteristics (Ta=25°C)
VO-VCTL Characteristics (VMin=20V)
20
15
10
5
0
01
23
45
Control Voltage (DC) VCTL(V)
VO-Duty Characteristics (VMin=20V)
20
15
10
5
0
0 20 40 60 80 100
Control Duty fCTL=50kHz Duty(%)
Conversion Efficiency
(VMin=20V, VCTL=5V)
100
90
80
70
60
50
40
30
20
10
0
0
50 100 150 200 250 300
Output Current IO (mA)
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/1
2010.03 - Rev. B
Datasheet pdf - http://www.DataSheet4U.net/
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