Home datasheet 5S84U51CF

5S84U51CF

Single Output
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Description

Features, Applications

DESCRIPTION The DFC15 Series of DC/DC converters are designed to provide a wide range of PCB power solutions. The converter features dual output filters for low noise. Trim and remote ON/OFF features give flexibility to designs. The output of the converter is electrically isolated, thereby allowing the output to be configured as a positive or negative output voltage. The ultra-wide input range, from to 60 volts, allows use in many industrial and communication applications.

FEATURES to 15 Watts Output Power Efficiencies to 83% Very Low OFF Current 700V Isolation Dual Stage Output filter to +90�C Operation Ultra-Wide Range Input (3:1) Remote ON/OFF and TRIM

All Models ON/OFF Function (2) OFF Logic Level or Pin Open OFF Logic Level Input Resistance Converter Idle Current ON/OFF Pin Low Isolation (3) Isolation Voltage Input to Output 10 �A Leakage Input to Output Capacitance Output Trim Function Input Resistance Open Circuit Voltage Environmental Case Operating Range, Tc No Derating Storage Range Thermal Impedance (5) General MTBF (Calculated) Unit Weight Chassis Mounting Kit

(1) All parameters measured = 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. The ON/OFF pin is the Open Collector TTL, CMOS, and relay compatible. The input to this pin is referenced to Pin 2 (-Input) and is protected to +75VDC. The Case is tied to Pin 3, +Input pin. The case thermal impedance is specified as the case temperature rise over ambient per package watt dissipated.

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

Function +INPUT -INPUT ON/OFF NO PIN +OUT -OUT TRIM

Model Voltage Range Input Current Full Load No Load MIN TYP MAX TYP MAX TYP DFC15U48S12 DFC15U48S15 Units VDC mA % kHz VDC ms

Efficiency Switching Frequency Maximum Input Overvoltage, 100ms No Damage Turn-on Time, 1% Output Error

Model Output Voltage Rated Load (3) Voltage Range 100% Load Regulation 25-100% Full Load Line Regulation Vin = Min-Max VDC Short Term Stability (4) Long Term Stability Input Ripple Rejection (5) Noise, 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 1�F/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 to 120Hz ripple with a modulation amplitude of 1% Vin.

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 200KHz is required. External output capacitance is not required for operation, however it is recommended that 10F of tantalum and to 0.1F ceramic capacitance be selected for reduced system noise. Additional output capacitance may be added for increased filtering, but should not exceed 400F. 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

APPLICATION NOTES (cont'd): 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 a 100K internal pull-up resistor a 9 volt source. Output TRIM The TRIM pin may be used to adjust the output �5% from the nominal setting. This function allows adjustment for voltage drops in the system wiring, as well 5.2 volt outputs for ECL applications. Figure 1 shows the proper connections to use this function. A trimpot value of 10K should be used for 5 volt outputs. A trimpot value of 20K should be used for 12 and 15 volt outputs. If the TRIM function is not required the pin may be left floating.

+OUT 5 TRIM 7 -OUT 6 USING TRIMPOT 10K LOAD +OUT 5 TRIM DOWN TRIM 7 -OUT 6
Typical Performance: (Tc=25�C, Vin=Nom VDC, Rated Load)
INPUT RIPPLE Vs. LINE INPUT REFLECTED RMS RIPPLE (AMPS)
INPUT CURRENT Vs. INPUT VOLTAGE INPUT CURRENT (AMPS)
100% FULL LOAD 0.80 75% FULL LOAD 0.60 50% FULL LOAD 0.40

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.


Features

Parameters


Manufacturer information

Power-One has been acquired by Bel Fuse and is now marketed under Bel Power Solutions.

Power-One has been a leader in high-efficiency "green" power conversion and management solutions, including renewable energy. Power-One's green products include DC-DC converters and power supplies.


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