ATS2812DHB [INFINEON]
HIGH RELIABILITY DC-DC CONVERTER;
| 型号： | ATS2812DHB |
| 厂家： | 
Infineon |
| 描述： | HIGH RELIABILITY DC-DC CONVERTER DC-DC转换器 |
| 文件： | 总10页 (文件大小：162K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PD-97221B
ATS SERIES
28V Input, Single/Dual Output
HIGH RELIABILITY
DC-DC CONVERTER
Description
The ATS Series DC-DC converters are a family of 25W,
single and dual output, high reliability devices designed
for rugged environments and extended temperature
operations such as those encountered in military,
aerospace and industrial applications. The converters
are in full compliant with CE03 and CS01 of MIL-STD-
461C. Features include small size, low weight and
conservative component stress de-rating. For operations
in radiation environments, the M3L series with the
identical form factor and electrical rating is recommended.
ATS
Features
n 16V to 50V DC Input Range
n Input Transient per MIL-STD-704D
n Up to 25W Output Power
n Single and Dual Output Models Include
3.3V, 5V, 12V, 15V, ±5V, ±12V and ±15V
n Internal EMI Filter; Converter Capable of
Meeting MIL-STD-461C CE03 and CS01
n Magnetically Coupled Feedback
n High Efficiency - to 82%
All models include an external inhibit port and have an
adjustable output voltage. They are enclosed in a
hermetic 1.5" x 2.3" x .425" steel package and weight
less than 85grams. The package utilizes rugged ceramic
feed-thru copper core pins and is sealed using parallel
seam welding.
n -55°C to +125°C Operating Temperature Range
n 100MΩ @ 500VDC Isolation
n Under-Voltage Lockout
n Short Circuit and Overload Protection
n Output Over Voltage Limiter
n Adjustable Output Voltage
n External Inhibit
n 1,000,000 Hour MTBF
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are fabricated utilizing DLA
Land and Maritime qualified processes. For available
screening options, refer to device screening table in the
data sheet.
n Low Weight, < 85 grams
Applications
n Military Aircraft
n Commercial Aircraft
n Missiles
n Ground Equipment
www.irf.com
1
11/12/12
ATS SERIES
(28V Input, Single/Dual Output)
Circuit Description
The ATS Series 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. Voltage
feed-forward with duty factor limiting provides high
line rejection and protection against output over
voltage in the event of an internal control loop failure.
This mechanism limits the maximum output voltage
to approximately 20% over the nominal regardless
of the line voltage.
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. The current limit point
exhibits a slightly negative temperature coefficient
to reduce the possibility of thermal runaway.
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 10.5V with respect
to the input return (pin 2). The output voltage of all
models can be adjusted using a single external
resistor.
An internal EMI filter allows the converter to meet
the conducted emissions requirements of MIL-STD-
461C on the input power leads. A single-stage output
filter reduces the typical output ripple to less than
50mV peak-to-peak. Output current is limited under
any load fault condition to approximately 125% of
rated.
2
www.irf.com
ATS SERIES
(28V Input, Single/Dual Output)
Absolute Maximum Ratings
Recommended Operating Conditions
Input voltage range
-0.5Vdc to +75Vdc
Input voltage range
Input voltage range1
+16Vdc to +50Vdc
+16Vdc to +38Vdc
0 to Max. Rated
-55°C to +125°C
-55°C to +70°C
Output power
Internally limited
Lead temperature
+300°C for 10 seconds Output power
Operating temperature2
Operating temperature1
Operating case temperature
Storage temperature
-55°C to +125°C
-55°C to +135°C
21 Meets derating per MIL-STD-975
For operation at +125°C see table note 13
Electrical Performance Characteristics
Conditions
Limits
-55°C ≤ TC ≤ +85°C
Group A
Subgroup
V
IN = 28V DC ± 5%, CL = 0
Parameter
Input Voltage
Unit
V
Min
16
Nom
28
Max
50
unless otherwise specified
Output Voltage ( Vout )
ATS2803R3S
ATS2805S
1
1
1
1
1
1
1
IOUT = 100% rated load
Note 4
3.27
4.95
11.88
14.85
±4.95
±11.88
±14.85
3.30
5.00
12.00
15.00
±5.00
±12.00
±15.00
3.33
5.05
12.12
15.15
±5.05
±12.12
±15.15
ATS2812S
ATS2815S
ATS2805D
ATS2812D
V
ATS2815D
ATS2803R3S
ATS2805S
ATS2812S
ATS2815S
ATS2805D
ATS2812D
ATS2815D
2,3
2,3
2,3
2,3
2,3
2,3
2,3
IOUT = 100% rated load
Note 4
3.23
4.90
3.37
5.10
11.76
14.70
±4.90
±11.76
±14.70
12.24
15.30
±5.10
±12.24
±15.30
V
Output power ( POUT
)
ATS2803R3S
All Others
1,2,3
1,2,3
VIN = 16, 28, 50 Volts, Note 2
VIN = 16, 28, 50 Volts, Note 2
0
0
20
25
W
Output current ( IOUT
)
ATS2803R3S
ATS2805S
ATS2812S
ATS2815S
ATS2805D
ATS2812D
ATS2815D
0
0
0
0
0
0
0
6.06
5.00
2.08
1.67
4.00
1.67
1.33
A
Either Output, Note 3
Either Output, Note 3
Either Output, Note 3
Line regulation ( VRLINE
)
1,2,3
1,2,3
VIN = 16, 28, 50 Volts
IOUT = 0, 50%, 100% rated, Note 4
-0.5
0.5
%
%
Load regulation ( VRLOAD
)
IOUT = 0, 50%, 100% rated, Note 4
VIN = 16, 28, 50 Volts
-1.0
1.0
Cross regulation ( VRCROSS
ATS2805D
)
1,2,3
VIN = 16, 28, 50 Volts
Duals only, Note 5
-5.0
-3.0
-3.0
5.0
3.0
3.0
ATS2812D
ATS2815D
%
For Notes to Electrical Performance Characteristics Table, refer to page 5
www.irf.com
3
ATS SERIES
(28V Input, Single/Dual Output)
Electrical Performance Characteristics ( continued )
Conditions
Limits
Nom
-55°C ≤ TC ≤ +85°C
VIN = 28V DC ± 5%, CL = 0
unless otherwise specified
Group A
Subgroup
Parameter
Unit
Min
Max
Input current, no load ( IIN
ATS2803R3S
ATS2805S
)
1,2,3
IOUT = 0, Pin 4 open
60
70
70
ATS2812S
ATS2815S
ATS2805D
ATS2812D
ATS2815D
70
70
100
100
mA
mA
Input current inhibited
1,2,3
1,2,3
Pin 4 shorted to pin 2
8.0
Output ripple ( VRIP
)
ATS2803R3S
ATS2805S
ATS2812S
ATS2815S
ATS2805D
ATS2812D
ATS2815D
VIN = 16, 28, 50 Volts
IOUT = 100% rated load
Notes 4, 6
35
50
70
80
80
80
80
mV p-p
KHz
Switching frequency ( FS )
1,2,3
1,2,3
Sync. Input (Pin 4) open
425
500
575
Efficiency ( EFF
)
ATS2803R3S
ATS2805S
ATS2812S
ATS2815S
ATS2805D
ATS2812D
ATS2815D
IOUT = 100% rated load
Note 4
68
75
75
75
75
75
75
75
79
80
81
79
79
80
%
Enable Input ( Inhibit Function )
open circuit voltage
drive current ( sink )
voltage range
V
µA
V
1,2,3
1,2,3
Note 1
9.5
11.5
500
50
-0.5
105
Current Limit Point
Vout = 90% of Nominal, Note 4
130
%
Expressed as a percentage
of full rated load current
Power dissipation, load fault (PD)
1,2,3
4,5,6
Short Circuit, Overload, Note 8
14
W
Output response to
Half Load to/from Full Load, Notes 4,9
-300
-300
300
mV pk
step load changes (VTLD
)
Recovery time,
step load changes (TTLD
4,5,6
4,5,6
4,5,6
Half Load to/from Full Load, Note
4,9,10
200
300
200
µs
mV pk
µs
)
Output response to
step line changes (VTLN
16V to/from 50V
IOUT = 100% rated load, Notes 1,4,11
)
Recovery Time,
16V to/from 50V
IOUT = 100% rated load, Notes
1,4,10,11
step line changes (TTLN
Turn-on Response
)
Overshoot (VOS
Turn-on Delay (TDLY
)
4,5,6
No Load, Full Load
Notes 4,12
500
10
mV
ms
)
2.0
For Notes to Electrical Performance Characteristics Table, refer to page 5
4
www.irf.com
ATS SERIES
(28V Input, Single/Dual Output)
Electrical Performance Characteristics (continued)
Conditions
Limits
-55°C ≤ TC ≤ +85°C
VIN = 28V DC ± 5%, CL = 0
unless otherwise specified
Group A
Subgroup
Parameter
Unit
µF
Min
Nom
Max
Capacitive Load (CL)
ATS2803R3S
ATS2805S
1
IOUT = 100% rated load
No effect on DC performance
Notes 1, 4, 7
2200
1000
180
120
500
90
ATS2812S
ATS2815S
ATS2805D
ATS2812D
Each output on duals
ATS2815D
60
Line Rejection
Isolation
1
1
IOUT = 100% rated load
DC to 50KHz, Notes 1, 4
40
50
dB
Input to Output or Any Pin to Case
except pin 3, test @ 500VDC
100
MΩ
Device Weight
MTBF
85
g
6
Hr
MIL-HDBK-217F2, GM, 35°C
1.0 X10
Notes for Electrical Performance Characteristics Table
1. Parameter is tested as part of design characterization or after design changes. Thereafter, parameter shall
be guaranteed to the limits specified.
2. Parameter verified during line and load regulation tests.
3. Output load current must be distributed such that at least 20% of the total load current is being provided by
one of the outputs.
4. Load current split equally between outputs on dual output models.
5. Cross regulation is measured with 20% rated load on output under test while changing the load on the
other output from 20% to 80% of rated.
6. Guaranteed for a D.C. to 20MHz bandwidth. Tested using a 20KHz to 10MHz bandwidth using the circuit
on page 6.
7. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance. A
capacitive load in excess of the maximum limit may interfere with the proper operation of the converter’s
overload protection, causing erratic behavior during turn-on.
8. Overload power dissipation is defined as the device power dissipation with the load set such that VOUT
=
90% of nominal.
9. Load step transition time ≥ 10µs.
10. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0%
of its steady state value.
11. Line step transition time ≥ 100µs.
12. Turn-on delay time from either a step application of input power or a logic low to a logic high transition on
the inhibit pin (pin 4) to the point where VOUT = 90% of nominal.
13. For operation at temperatures between +85°C and +125°C, derate the maximum input voltage linearly from
100% to 75%.
www.irf.com
5
ATS SERIES
(28V Input, Single/Dual Output)
Circuit for Measuring Output Ripple Voltage
1 µF
50 Ω
50 Ω Coax
Oscilloscope or equivalent
with 10 MHz bandwidth,
multiply readings by 2.
0.1 µF
+ Vout
Return
50 Ω
Termination
DUT
RL for IRATED
6
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ATS SERIES
(28V Input, Single/Dual Output)
Figure 1. Conducted Emissions, Normal Mode
100
90
80
70
60
50
40
30
20
10
0
CEO3 LIMIT
1E3
1E4
1E5
1E6
1E7
1E8
Frequency ( Hz )
Figure 2. Conducted Emissions, Common Mode
100
90
80
70
60
50
40
30
20
10
0
CEO3 LIMIT
1E3
1E4
1E5
1E6
1E7
1E8
Frequency ( Hz )
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7
ATS SERIES
(28V Input, Single/Dual Output)
Figure 3. Block Diagram - Single Output
EMI
FILTER
Vin
1
7
6
+OUTPUT
OUTPUT
RETURN
+10.5V
BIAS
SUPPLY
INHIBIT
4
RETURN
2
3
CASE
GROUND
OUTPUT
ADJUST
+
-
5
EA
PWM
CONTROLLER
SAMPLE
&
RAMP
GEN.
HOLD
FEEDBACK
TRIGGER
Figure 4. Block Diagram - Dual Output
EMI
FILTER
Vin
1
8
7
6
+OUTPUT
RETURN
-OUTPUT
+10.5V
BIAS
SUPPLY
INHIBIT
4
RETURN
2
3
CASE
GROUND
OUTPUT
ADJUST
+
5
EA
-
PWM
CONTROLLER
SAMPLE
&
RAMP
GEN.
HOLD
FEEDBACK
TRIGGER
8
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ATS SERIES
(28V Input, Single/Dual Output)
Mechanical Outline
2.300
1.55
ø 0.128
4 Plcs
0.375
0.050
0.25 Typ.
0.27
0.47
0.40
0.40
1.00
Ref
1.50 1.75 2.000
0.40
0.20
2 Eq Spaces
@ 0.20
Pin ø
0.040
0.220
0.35
0.85
2.80
Ref
0.02
0.250
Tolerance: .XX = ±0.01
.XXX = ±0.005
0.425
Max
Pin Designation (Single/Dual)
Pin #
Single
Dual
1
2
3
4
5
6
7
8
+ Input
Input Return
Case
+ Input
Input Return
Case
Inhibit
Inhibit
Output Adjust
Output Return
+ Vout
Output Adjust
- Vout
Output Return
+ Vout
NC
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9
ATS SERIES
(28V Input, Single/Dual Output)
Device Screening
Requirement
MIL-STD-883 Method No Suffix
ES
HB
CH
Temperature Range
Element Evaluation
Non-Destructive
Bond Pull
-20°C to +85°C -55°C to +85°C
-55°C to +85°C -55°C to +85°C
MIL-PRF-38534
2023
N/A
N/A
N/A
N/A
Class H
N/A
N/A
N/A
Internal Visual
Temperature Cycle
Constant Acceleration
PIND
2017
1010
Yes
Cond B
500 Gs
N/A
Yes
Cond C
3000 Gs
N/A
Yes
Cond C
3000 Gs
N/A
N/A
N/A
N/A
2001, Y1 Axis
2020
Burn-In
1015
N/A
25°C
48 hrs@hi temp 160 hrs@125°C 160 hrs@125°C
Final Electrical
( Group A )
MIL-PRF-38534
& Specification
MIL-PRF-38534
1014
25°C
-55°C, +25°C,
+85°C
-55°C, +25°C,
+85°C
PDA
N/A
Cond A
N/A
N/A
Cond A, C
N/A
N/A
10%
Seal, Fine and Gross
Radiographic
External Visual
Cond A, C
N/A
Cond A, C
N/A
2012
2009
Yes
Yes
Yes
Notes:
Best commercial practice
Sample tests at low and high temperatures
Part Numbering
ATS 28 05 S /CH
Model
Screening Level
(Please refer to Screening Table)
Input Voltage
28 = 28V
No Suffix, ES, HB, CH
Output Voltage
Output
S = Single
D = Dual
Single: 03R3 = 3.3V, 05 = 5V
12 = 12V, 15 = 15V
Dual: 05 = ±5V, 12 = ±12V
15 = ±15V
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 252-7105
IR SAN JOSE: 2520 Junction Avenue, San Jose, California 95134, Tel: (408) 434-5000
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 11/2012
10
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