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DGP12 SERIES
SINGLE OUTPUT
DESCRIPTION Providing outputs from 5 volts to 15 volts, the DGP12 series delivers up to 12 watts with power densities up to 7 watts per cubic inch (0.43 watts per cm3). Designed to operate on ultra-wide input voltages from 3.5 to 16 volts, and with remote ON/OFF capability, the DGP12 supplies power from battery or system sources . The output of the converter is electrically isolated, thereby allowing the output to be configured as a positive or negative output voltage. The fully isolated, shielded case allows precise operation in sensitive environments. FEATURES
* Up to 12 Watts Output Power * Five-Side Shielded Isolated Copper Case * Ultra-Wide 3.5 to 16 Volt Input Range * Efficiencies to 82% * Fully Isolated and Filtered * 700V Isolation * Remote ON/OFF and TRIM
BOTTOM VIEW 2.02 (51.31) SIDE VIEW 0.040 (1.02) DIA 6 PLACES
0.700 (17.78) 0.600 (15.24) 0.400 (10.16) 0.300 (7.62) 0.000 0.100 (2.54) 0.51 (13.0)
5 1 2 6 2.02 (51.31)
3
7
0.25 (6.35)
0.11 (2.8) 0.000
1.800 (45.72)
Mechanical tolerances unless otherwise noted: X.XX dimensions: 0.020 inches X.XXX dimensions: 0.005 inches
NOTES
(1) All parameters measured at Tc = 25C, 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. See DGP12 Series Application Notes for more information regarding the ON/OFF function. The Case is tied to the -Output pin. 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. The case thermal impedance is specified as the case temperature rise over ambient per package watt dissipated. Reduced output power is available at 3.5V input. Full power is available above 4.6 volts.
(2) (3) (4)
(5) (6)
Rev. 04/2000
1
0.45 (11.43)
0.000
DGP12 SERIES - SINGLE OUTPUT
NOTES
(1) All parameters measured at Tc=25C, 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. Reduced output power available at 3.5V input. Full output power is available above 4.6V input. Noise is measured per Technical Reference Section. Measurement bandwidth is 0-20 MHz for peakpeak measurements, 10 kHz to 1 MHz for RMS measurements. Output noise is measured with a 0.01F ceramic in parallel with a 1F/35V Tantalum capacitor located 1" away from the converter to simulate your PCB's standard decoupling. Short term stability is specified after a 30 minute warmup at full load, constant line and recording the drift over a 24 hour period. No minimum load required for operation . Dynamic regulation may degrade when run with less than 5% load. Less than 30 seconds.
DGP12 SERIES APPLICATION NOTES: External Capacitance Requirements No external capacitance is required for operation of the DGP12 Series. To meet the reflected ripple requirements of the converter, an input impedance of less than 0.05 Ohms from DC to 120KHz 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 DGP12 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. (continued next page)
(2) (3)
(4) (5) (6)
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.
2
DGP12 SERIES - SINGLE OUTPUT
DGP12 SERIES BLOCK DIAGRAM
SHIELDED ISOLATION TRANSFORMER
OUTPUT POWER DERATING
12
5 +
+ OUTPUT
+ INPUT
1 +
- INPUT
2
CURRENT MODE PWM
6
- OUTPUT
POWER OUTPUT
10
8
+
ON/OFF
7
TRIM
3
-
ISO AMP
6
FIVE SIDED SHIELDED COPPER CASE
LOW TC BANDGAP REFERENCE
4 50 60 70 80 90 AMBIENT TEMPERATURE 100
APPLICATION NOTES (cont'd): Negative Outputs A negative output voltage may be obtained by connecting the +OUT to circuit ground and connecting -OUT as the negative output. 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/drain 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. The input capacitors are kept fully charged in the OFF mode. For proper operation, do not drive this input from a logic gate directly. The ON/OFF pin must be left floating for proper operation. Be aware that this input may be noise sensitive; use proper PCB design guidelines. The ON/Off pin should never be pulled more than 0.3 volts below -INPUT or have a voltage greater than 2 volts applied. Output TRIM The TRIM pin may be used to adjust the output 10% 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=25C, Vin=Nom VDC, Rated Load)
EFFICIENCY Vs. LOAD
85 LINE = 5VDC 5.0
INPUT CURRENT Vs. LINE INPUT VOLTAGE INPUT CURRENT (AMPS)
4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 2 4 6 8 10 12 14 16 100% LOAD 50% LOAD
80
EFFICIENCY (%)
75 LINE = 16VDC 70 65 60 0 10 20 30 40 50 60 70 80 90 100
LOAD (%)
LINE INPUT (VOLTS)
EFFICIENCY Vs. LINE INPUT VOLTAGE
85 120
INPUT VOLTAGE DERATING
EFFICIENCY (%)
80 100% FULL LOAD 75
% AVAILABLE POWER
50% FULL LOAD
100 80 60 40 20 0 3.50
70
65 4 6 8 10 12 14 16
A
3.75
4.00
4.25
4.50
4.75
5.00
LINE INPUT VOLTAGE (VOLTS)
LINE INPUT (VDC)
NOTES ON USING THE CURVES 1) 2) The input currents are for 12 watts of input power. For 5 volt output models the current is approximately 16% less. The efficiency curves are for 12 volt output. To use the curves for other models adjust as follows: 5 volt models subtract approximately 2%. 15 volt models subtract approximately 1%.
LOAD TRIM UP
Figure 1.
USING FIXED RESISTORS
3

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