DFC15U48D15 POWER ONE, DFC15U48D15 Datasheet - Page 3

• Manufacturer Part Number: DFC15U48D15
• Description: CONV DC-DC 15W +15V/-15V DUAL
• Manufacturer: POWER ONE
• Series: DFC15r
• Type: Isolatedr

Specifications of DFC15U48D15

• Output: ±15V
• Number Of Outputs: 2
• Power (watts): 15W
• Mounting Type: Through Hole
• Voltage - Input: 20 ~ 72V
• Package / Case: 7-DIP Module
• 1st Output: 15 VDC @ 500mA
• 2nd Output: -15 VDC @ 500mA
• Size / Dimension: 2.02" L x 1.62" W x 0.55" H (51.3mm x 41.2mm x 14mm)
• Power (watts) - Rated: 15W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 82%
• Approvals: CE, cUL, TUV, UL
• Output Current: 0.5 A
• Output Voltage: 15|-15 V
• Input Voltage: 48 V
• Output Power: 15 W
• Switching Regulator: Yes
• Brand/series: DFC15 Series
• Configuration: Encapsulated
• Current, Input: 381 mA (Typ.) (Full Load)
• Noise Rating: 30 mV p-p (Typ.)
• Operation: Switching
• Power, Output: 15 W
• Primary Type: DC-DC Converter
• Regulation, Line: 0.04% (Typ.)
• Regulation, Load: 0.15% (Typ.) (Full Load)
• Resistance, Input: 40 Kiloohms (Typ.)
• Ripple, Rejection: > 60 dB (Typ.)
• Special Features: Remote On/Off, Trim
• Standards: UL Recognized
• Temperature Coefficient: 50 ppm⁄°C (Typ.)
• Temperature, Operating: -40 to +100 °C
• Time, Rise, Turn-on: 20 ms (Typ.)
• Voltage Range: 20 to 72 VDC
• Voltage, Input: 20 to 72 VDC
• Voltage, Output: -15, +15 VDC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 4th Output: -
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 179-1031

DFC15 Series Application Notes:
External Capacitance Requirements
An external capacitance is required for operation of the DFC15 Series. For maximum performance, it is recommended
that the DFC15 Series use a capacitor of sufficient ripple current capacity connected across the input pins. To meet
the reflected ripple requirements of the converter, an input impedance of less than 0.05 Ohms from DC to 200 kHz is
required. External output capacitance is not required for operation, however it is recommended that 1 μF to 10 μF of
tantalum and 0.001 to 0.1 μF ceramic capacitance be selected for reduced system noise. Additional output
capacitance may be added for increased filtering, but should not exceed 400 μF.
Remote ON/OFF Operation
The remote ON/OFF pin may be left floating if this function is not used. It is recommended to drive this pin with an
open collector arrangement or a relay contact. When the ON/OFF pin is pulled low with respect to the -INPUT, the
converter is placed in a low power drain state. Do not drive this input from a logic gate directly; there is a 100KV
internal pull-up resistor to a 9 volt source.
Output TRIM
The TRIM pin may be used to adjust the output +5% to -34% from the nominal setting. This function allows adjustment
for voltage drops in the system wiring. As well 5.2 volt Figure 1 shows the proper connections to use this function. A
trimpot value of 10KV or a fixed resistor may be used. If the TRIM function is not required the pin may be left floating.
REV. JAN 20, 2006
+ INPUT
– INPUT
ON/OFF
1
2
3
FILTER
INPUT
LC
THERMAL SHUTDOWN
CURRENT
MODE
PWM
FIVE SIDED SHIELDED COPPER CASE
DFC15 SERIES BLOCK DIAGRAM
ISOLATION TRANSFORMER
FEEDBACK
ISOLATED
REFERENCE
BANDGAP
+
–
LOW TC
+
+
DFC15 Dual-Output DC-DC Series Data Sheet
Page 3 of 4
4
5
6
7
CMN
– OUTPUT
TRIM
+ OUTPUT
15
10
5
0
40
OUTPUT POWER DERATING
AMBIENT TEMPERATURE
50
60
www.power-one.com
70
80
90