DFC6 데이터 시트보기 (PDF) - Power-One Inc.

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DFC6

SINGLE OUTPUT

Power-One Inc. 

DFC6 SERIES – SINGLE OUTPUT

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.

(2) Reduced output power available at 3.5V input. Full output power is available above 4.6V input. See

input voltage derating curve for more information.

(3) Noise is measured per Technical Reference Section. Measurement bandwidth is

0-20 MHz for peak-peak measurements, 10 kHz to 1 MHz for RMS measurements. Output noise is

measured with a 1µF/35V Tantalum capacitor located 1" away from the converter to simulate PCB

standard decoupling.

(4) Short term stability is specified after a 30 minute warmup at full load, constant line and recording the

drift over a 24 hour period.

(5) No minimum load required for operation. Dynamic regulation may degrade when run with less

than 5% load.

DFC6 SERIES APPLICATION NOTES:

External Capacitance Requirements

No external capacitance is required for operation of the DFC6

Series. To meet the reflected ripple requirements of the converter,

an input impedance of less than 0.15 Ohms from DC to 200KHz

is required. If a capacitive input source is farther than 1” from the

converter, an additional capacitor may be required at the input

pins for proper operation. 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.

Output Power

The available output power of the DFC6 Series is reduced when

operating below 4.6 volts. See Input Voltage Derating curve. Below

4.6 volts the output power is linearly derated from 100% at 4.6

volts to 50% at 3.5 volts.

Negative Outputs

A negative output voltage may be obtained by connecting the

+OUT to circuit ground and connecting -OUT as the negative

output.

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