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International Rectifier Electronic Components Datasheet

HTA20015D Datasheet

HIGH RELIABILITY DC-DC CONVERTER

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PD-97309B
HIGH RELIABILITY
DC-DC CONVERTER
HTA-SERIES
200V Input, Single/Dual Output
Description
The HTA Series of DC-DC converters is a family of 20W,
single and dual output, high reliability devices designed to
operate in extremely high temperature environments such as
those encountered in oil exploration applications. Features
include small size, low weight and high tolerance to
environmental stresses such as wide temperature extremes,
severe shock and vibration. All internal components are
derated to meet the intended operating environment.
Documentation including electrical stress and thermal analysis
are available.
The converters incorporate a fixed frequency single forward
topology with magnetic feedback and internal EMI filter. All
models include an external inhibit port and have an adjustable
output voltage. They are enclosed in a hermetic 3.805" x 1.5"
x 0.430" AlSi package and weigh less than 70grams. The
package utilizes rugged ceramic feed-thru copper core pins
and is sealed using parallel seam welding.
Full environmental screening includes temperature cycling,
constant acceleration, fine and gross leak, and burn-in. Non-
screened versions of the HTA converters are available for
system development purposes. Variations in electrical
specifications and screening to meet custom requirements
can be accommodated.
Circuit Description
The HTA series of converters utilize a single-ended forward
topology with resonant reset. The nominal switching frequency
is 500KHz. Electrical isolation and tight output regulation are
achieved through the use of a magnetically coupled feedback.
Output current is limited under any load fault condition to
approximately 125% of rated load at maximum operating case
temperature. An overload condition causes the converter
output to behave like a constant current source with the output
voltage dropping below nominal. The converter will resume
normal operation when the load current is reduced below the
current limit point. This protects the converter from both
overload and short circuit conditions.
Features
n 150 to 250V DC Input Range
n Up to 20W Output Power
n Single and Dual Output Models Include
3.3, 5, 12, 15, ±5, ±12 and ±15V
n Internal EMI Filter
n Magnetically Coupled Feedback
n High Efficiency - to 76%
n -35°C to +185°C Operating Case Temperature Range
n 10M@ 500VDC Isolation
n Under-Voltage Lockout
n Short Circuit and Overload Protection
n Output Over Voltage Limiter
n Adjustable Output Voltage
n Synchronization Input and Output
n External Inhibit
n Low Weight, < 70grams
Applications
n Down Hole Exploration Tools
An external Inhibit port is provided to control converter
operation. The converter’s operation is inhibited when
this pin is pulled low. It is designed to be driven by an
open collector logic device. The pin may be left open
for normal operation and has a nominal open circuit
voltage of 4.0V with respect to the Input Return (pin 2).
The output voltage of all models can be adjusted using
a single external resistor.
The current limit point exhibits a slightly negative temperature
coefficient to reduce the possibility of thermal runaway.
www.irf.com
1
07/30/10
www.DataSheet.in


International Rectifier Electronic Components Datasheet

HTA20015D Datasheet

HIGH RELIABILITY DC-DC CONVERTER

No Preview Available !

HTA-SERIES
Absolute Maximum Ratings
Input voltage range
-0.5Vdc to +300Vdc
Output power
Internally limited
Lead temperature
+300°C for 10 seconds
Operating case temperature
-35°C to +185°C
Storage temperature
-55°C to +185°C
Maximum Operating Conditions
Input voltage range
150Vdc to 250Vdc
Output power
0 to Max. Rated
Operating temperature
-35°C to +185°C
Electrical Performance Characteristics
Parameter
Input Voltage
Output voltage ( Vout )
HTA2003R3S
HTA20005S
HTA20012S
HTA20015S
HTA20005D
HTA20012D
HTA20015D
Group A
Subgroup
Conditions
-35°C TC +185°C
VIN = 200V DC ± 5%, CL = 0
unless otherwise specified
1
1
1
1
IOUT = 100% rated load
Note 4
1
1
1
HTA20003R3S
2,3
HTA20005S
HTA20012S
HTA20015S
2,3
2,3
IOUT = 100% rated load
2,3 Note 4
HTA20005D
2,3
HTA20012D
2,3
HTA20015D
2,3
Output power ( POUT )
Output current ( IOUT )
HTA20003R3S
HTA20005S
HTA20012S
HTA20015S
HTA20005D
HTA20012D
HTA20015D
Line regulation ( VRLINE )
Load regulation ( VRLOAD )
Cross regulation ( VRCROSS )
HTA20005D
HTA20012D
HTA20015D
1,2,3
1,2,3
VIN = 150, 200, 250 Volts, Note 2
VIN = 150, 200, 250 Volts, Note 2
1,2,3
1,2,3
1,2,3
Either Output, Note 3
Either Output, Note 3
Either Output, Note 3
VIN = 150, 200, 250 Volts
IOUT = 0, 50%, 100% rated, Note 4
IOUT = 0, 50%, 100% rated, Note 4
VIN = 150, 200, 250 Volts
VIN = 150, 200, 250 Volts
Duals only, Note 5
Min
150
3.25
4.95
11.88
14.85
±4.95
±11.88
±14.85
3.20
4.85
11.64
14.55
±4.85
±11.64
±14.55
0
0
0
0
0
0
0
0
-0.5
-1.0
-5.0
-3.0
-3.0
Limits
Nom
200
Max
250
3.30
5.00
12.00
15.00
±5.00
±12.00
±15.00
3.35
5.05
12.12
15.15
±5.05
±12.12
±15.15
3.40
5.15
12.36
15.45
±5.15
±12.36
±15.45
20
6.10
4.00
1.67
1.33
3.20
1.34
1.06
+0.5
+1.0
5.0
3.0
3.0
Unit
V
V
W
A
%
%
%
For Notes to Electrical Performance Characteristics, refer to page 5
2
www.irf.com
www.DataSheet.in


Part Number HTA20015D
Description HIGH RELIABILITY DC-DC CONVERTER
Maker International Rectifier
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HTA20015D Datasheet PDF






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