Datasheet DFC10E24S3.3, DFC10E24S15, DFC10E24S12, DFC10E12S5, DFC10E12S3.3 Datasheet (Power-one)

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DESCRIPTION

The DFC10 Series provides power converter solutions to meet commercial and industrial requirements. With power densities above 11 watts per cubic inch (0.67 watts per cm

), overcurrent protection, and five-sided shielded case, the DFC10 meets the most rigorous needs in an industry standard case size. The 220KHz operating frequency of the DFC10 Series allows an increased power density while including adequate heat sinking and input/output filtering. This eliminates the need for external components in most applications. Full overload protection is provided by pulse-by-pulse current limiting.

FEATURES

• High Power Density, up to 11 Watts per Cubic Inch (0.67 watts per cm

)

• Efficiencies to 83% (Lower for 3.3V)

• Low Input to Output Capacitance

• 700V Isolation(1544V for 48V Converters)

• Continuous Overcurrent Protection

• 3.3Volt Output Available

• Five-Side Shielded Copper Case

• Extended Input Range (2:1)

DFC10 SERIES

SINGLE OUTPUT

BOTTOM VIEW SIDE VIEW

0.800

0.61

0.000

0.42

0.000

0.3

0.300

0.000

0.200

0.500

0.61

1.02

2.02

(20.32)

(15.5)

(5.08)

(7.62)

(12.70)

(51.31)

(25.91)

(10.67)

(7.62)

0.040 (1.02) DIA TYP

Mechanical tolerances unless otherwise noted: X.XX dimensions: ±0.020 inches X.XXX dimensions: ±0.005 inches

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) The Case is tied to the -Input pin. (3) The functional temperature range is intended to give an additional data point for use in evaluating this

power supply. At the low functional temperature the power supply will function with no side effects,

however, sustained operation at the high functional temperature will reduce expected operational life.

The data sheet specifications are not guaranteed beyond the case operating range. (4) The case thermal impedance is specified as the case temperature rise over ambient per package watt

dissipated.

Rev. 04/2000

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DFC10 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) 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 0.01µF / 100V ceramic capacitor in parallel with a 1µf / 35V Tantalum capacitor, 1 inch from the output pins to simulate standard PCB decoupling capacitance.

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

drift over a 24 hour period.

(4) The input ripple rejection is specified for DC to 120 Hz ripple with a modulation amplitude of 1% of Vin.

DFC10 SERIES APPLICATION NOTES:

External Capacitance Requirements No external capacitance is required for operation of the DFC10 Series. 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. This input capacitor should have an ESR

greater than 0.25 ohms. Input capacitors with an ESR less than 0.25 ohms may cause peaking of the input filter and actually degrade circuit performance.

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.

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DFC10 SERIES BLOCK DIAGRAM

+ OUTPUT

ISOLATION TRANSFORMER

- OUTPUT

ISO AMP

LOW TC

BANDGAP

REFERENCE

SHIELDED COPPER CASE

–

– INPUT

+ INPUT

CURRENT

MODE

PWM

LOW

NOISE

FILTER

Typical Performance: (Tc=25°C, Vin=Nom VDC, Rated Load)

Data for 12 Volt Input Models

1.5

100% LOAD

50% LOAD

1.0

0.5

0.0 4

1814 16108612

12 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE

LINE INPUT (VOLTS)

INPUT CURRENT (AMPS)

Data for 24 Volt Input Models

Data for 48 Volt Input Models

100% FULL LOAD

50% FULL LOAD

7565 7060

4535 5540 50

48 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE

LINE INPUT (VOLTS)

EFFICIENCY (%)

100% FULL LOAD

50% FULL LOAD

3632 3430

2218 2820 24 26

24 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE

LINE INPUT (VOLTS)

EFFICIENCY (%)

LINE = 18VDC

LINE = 24VDC

LINE = 36VDC

040

302010 50 60 70 80 90 100

24 VOLT EFFICIENCY Vs. LOAD

LOAD (%)

EFFICIENCY (%)

LINE = 9VDC

LINE = 12VDC

LINE = 18VDC

040

302010 50 60 70 80 90 100

12 VOLT EFFICIENCY Vs. LOAD

LOAD (%)

EFFICIENCY (%)

LINE = 36VDC

LINE = 72VDC

LINE = 48VDC

85 80 75 70 65 60 55 50

040

302010 50 60 70 80 90 100

48 VOLT EFFICIENCY Vs. LOAD

LOAD (%)

EFFICIENCY (%)

100% FULL LOAD

50% FULL LOAD

1816

1710 11 12 1391415

12 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE

LINE INPUT (VOLTS)

EFFICIENCY (%)

100% LOAD

50% LOAD

0.4

0.3

0.2

0.1

0.0 5

7545 552515 35 65

48 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE

LINE INPUT (VOLTS)

INPUT CURRENT (AMPS)

60 70 80 90 100

OUTPUT POWER DERATING

AMBIENT TEMPERATURE

POWER OUTPUT

DFC10 SERIES – SINGLE OUTPUT

0.8

100% LOAD

50% LOAD

0.4

0.6

0.2

0.0 4

3624 28 32168 12 20

24 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE

LINE INPUT (VOLTS)

INPUT CURRENT (AMPS)

NUCLEAR AND MEDICAL APPLICATIONS Power-One products are not authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the President of Power-One, Inc.

TECHNICAL REVISIONS The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice.