DFC15 SERIES – SINGLE OUTPUT
Input Parameters
(1)
Model
Voltage Range
Input Current
Full Load
No Load
MIN
TYP
MAX
TYP
TYP
TYP
TYP
MAX
TYP
5
DFC15U48S5
DFC15U48S12
20.0
48.0
60.0
915
4
82
120
75
10
DFC15U48S15
Units
VDC
905
4
83
mA
%
kHz
VDC
ms
Efficiency
Switching Frequency
Maximum Input Overvoltage, 100ms
No Damage
Turn-on Time, 1% Output Error
950
2
79
Output Parameters
(1)
Model
Output Voltage
Rated Load (3)
Voltage Range
100% Load
Load Regulation
25-100% Full Load
Line Regulation
Vin = Min-Max VDC
Short Term Stability (4)
Long Term Stability
Input Ripple Rejection (5)
Noise, 0-20MHz bw (2)
RMS Noise
Temperature Coefficient
Short Circuit Protection
+OUT to -OUT
NOTES
(1)
All Parameters measured at Tc=25°C, nominal input voltage and full rated load unless otherwise
noted. Refer to the Technical Reference Section for the definition of terms, measurement circuits and
other information.
Noise is measured per Technical Reference Section. Measurement bandwidth is 0-20 MHz. RMS
noise is measured over a 0.01-1 MHz bandwidth. To simulate standard PCB decoupling practices,
output noise is measured with a 1µF/35V tantalum capacitor located 1 inch away from the converter.
Minimum load required for rated regulation only. Dynamic response may degrade if run at less than
25% full load.
Short term stability is specified after a 30 minute warm-up at full load, and with constant line, load
and ambient conditions.
The input ripple rejection is specified for DC to 120Hz ripple with a modulation amplitude of 1% Vin.
DFC15U48S5
MIN
MAX
MIN
TYP
MAX
TYP
MAX
TYP
MAX
TYP
TYP
TYP
TYP
TYP
TYP
MAX
75
3
5
0
3000
4.95
5.00
5.05
0.5
0.75
0.1
0.15
DFC15U48S12
12
0
1250
11.90
12.00
12.10
0.1
0.2
0.01
0.1
< 0.02
< 0.05
> 60
60
2
50
150
Continuous Current Limit
DFC15U48S15
15
0
1000
14.90
15.00
15.10
0.1
0.2
0.01
0.1
Units
VDC
mA
VDC
%
%
%/24Hrs
%/kHrs
dB
60
2
mV
PP
mV
rms
ppm/
°C
DFC15 SERIES APPLICATION NOTES:
External Capacitance Requirements
No external capacitance is required for operation of the DFC15
Series. However, for maximum performance, it is recommended
that the DFC15 Series use a capacitor of sufficient ripple current
capacity connected across the input pins if a capacitive input
source is farther than 1” from the converter. To meet the reflected
ripple requirements of the converter, an input impedance of less
than 0.05 Ohms from DC to 200KHz is required. External output
capacitance is not required for operation, however it is
recommended that 1 F to 10 F of tantalum and 0.001 to 0.1 F
ceramic capacitance be selected for reduced system noise.
Additional output capacitance may be added for increased
filtering, but should not exceed 400 F.
Negative Outputs
A negative output voltage may be obtained by connecting the
+OUT to circuit ground and connecting -OUT as the negative
output.
(continued)
2
(2)
(3)
(4)
(5)
POWER-ONE [ POWER-ONE ]
