1
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 cm
3
). 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
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.
(2)
See DGP12 Series Application Notes for more information regarding the ON/OFF function.
(3)
The Case is tied to the -Output pin.
(4)
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.
(5)
The case thermal impedance is specified as the case temperature rise over ambient per package watt
dissipated.
(6)
Reduced output power is available at 3.5V input. Full power is available above 4.6 volts.
1
BOTTOM VIEW
SIDE VIEW
0.000
0.000
0.25
0.000
2.02
(51.31)
(6.35)
0.040 (1.02) DIA
6 PLACES
0.45
2.02
(11.43)
(51.31)
2
3
7
6
5
1.800
0.11
0.700
0.300
0.100
0.600
0.400
0.51
(7.62)
(2.54)
(13.0)
(17.78)
(15.24)
(10.16)
(45.72)
(2.8)
Rev. 04/2000
2
DGP12 SERIES SINGLE OUTPUT
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)
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.
(2)
Reduced output power available at 3.5V input. Full output power is available above 4.6V input.
(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
0.01F ceramic in parallel with a 1F/35V Tantalum capacitor located 1" away from the converter to
simulate your PCB's 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.
(6)
Less than 30 seconds.
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.
3
5
+OUT
7
TRIM
10K
LOAD
USING TRIMPOT
6
-OUT
5
+OUT
7
TRIM
TRIM
DOWN
TRIM
UP
LOAD
USING FIXED RESISTORS
6
-OUT
A
DGP12 SERIES SINGLE OUTPUT
DGP12 SERIES BLOCK DIAGRAM
5
+ OUTPUT
SHIELDED ISOLATION TRANSFORMER
+
6
- OUTPUT
7
TRIM
ISO AMP
LOW TC
BANDGAP
REFERENCE
FIVE SIDED SHIELDED COPPER CASE
+
2
INPUT
ON/OFF
1
3
+ INPUT
CURRENT
MODE
PWM
+
50
4
6
8
10
12
60
70
80
90
100
OUTPUT POWER DERATING
AMBIENT TEMPERATURE
POWER OUTPUT
120
80
100
60
20
40
0
3.50
4.00
3.75
4.25
4.50
4.75
5.00
INPUT VOLTAGE DERATING
LINE INPUT (VDC)
% AVAILABLE POWER
5.0
100% LOAD
50% LOAD
4.0
4.5
3.0
3.5
2.0
2.5
1.0
1.5
0.5
0.0
0
14
16
8
10
4
6
2
12
INPUT CURRENT Vs. LINE INPUT VOLTAGE
LINE INPUT (VOLTS)
INPUT CURRENT (AMPS)
NOTES ON USING THE CURVES
1)
The input currents are for 12 watts of input power. For
5 volt output models the current is approximately 16% less.
2)
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%.
85
50% FULL LOAD
100% FULL LOAD
80
75
70
65
4
8
6
10
12
14
16
EFFICIENCY Vs. LINE INPUT VOLTAGE
LINE INPUT VOLTAGE (VOLTS)
EFFICIENCY (%)
Typical Performance: (Tc=25C, Vin=Nom VDC, Rated Load)
85
LINE = 5VDC
LINE = 16VDC
80
75
65
70
60
0
40
30
20
10
50
60
70
80
90 100
EFFICIENCY Vs. LOAD
LOAD (%)
EFFICIENCY (%)
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.
Figure 1.
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