Interpoint FMTR2805D Emi filtered dc/dc converters 28 volt input Datasheet

EMI FILTERED
DC/DC CONVERTERS
28 VOLT INPUT
FEATURES
FMTR SERIES
30 WATT
• EMI input filter, up to
50 dB attenuation
• –55° to +125°C operation
• High frequency output filter
• 17 to 40 VDC input
• Fully isolated, magnetic feedback
• 600 kHz typical–Single Ended Forward
• Inhibit and synchronization functions
• Indefinite short circuit protection
• Trim and remote sense on singles
• Up to 83% efficiency
• Up to 50V for 50 ms transient
protection
MODELS
VDC OUTPUT
SINGLE
DUAL
3.3
±5
5
±12
12
±15
15
Size (max): 3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16 mm)
Weight:
100 grams maximum
Screening: Standard or ES, see the Environmental Screening table
DESCRIPTION
The FMTR Series™ of DC/DC converters offers up to 30 watts of
output power from single or dual output configurations. They
operate over the full military temperature range with up to 83% efficiency. FMTR converters are packaged in hermetically sealed metal
cases, making them ideal for use in military, aerospace and other
high reliability applications.
CONVERTER DESIGN
The FMTR converters are constant frequency, pulse-width modulated switching regulators which use a quasi-square wave, single
ended, forward converter design. Tight load regulation is maintained
via wide bandwidth magnetic feedback and, on single output
models, through use of remote sense.
Indefinite short circuit protection and overload protection are
provided by a constant current-limit feature. This protective system
senses current in the converter’s secondary stage and limits it to
approximately 115% of the maximum rated output current.
BUILT-IN FILTERS
The built-in input and output filters reduce layout issues and
conserve board space. The 2.7 amp EMI input filter meets MIL-STD461C, CE03 and allows filtering of additional converters through the
filter output pins. The output filter reduces high frequency common
and differential mode noise. It allows a higher bandwidth ripple
voltage measurement and eliminates the need for external output
decoupling capacitors. Both input and output filters reduce radiated
emissions providing quieter operation than conventional DC/DC
converters.
WARNING: REQUIRED DAMPING NETWORK
To prevent damage to the internal circuitry an external capacitor and
resistor are required across the filter outputs (pins 3 and 4) as
shown in Figure 1. This applies to both single and dual output
models. The recommended capacitor type is wet tantalum, MIL-C39006.
EMI Input Filter 2.7 A max.
28 Vin 8 +
+Vin
+
4 Filter Output
Required
damping
220 µF
network
2.2 Ω
Input Common 7 –
Rtn
~
Inhibit
–
Additional
DC/DC
Converters
3 Filter Output Rtn
Inhibit 5
+ Vin
–
Inh
Sync 1
Sync
Inhibit/Sync 2
Return
Sync
Rtn
11 Positive
Output
+
Vout
–
DC/DC Converter
High Frequency
Output Filter
10 Output
Common
FIGURE 1: FMTR TYPICAL INPUT INTERFACE APPLIES TO SINGLES AND DUALS (SHOWN WITH SINGLE OUTPUT)
1
DC/DC CONVERTERS
FMTR SERIES
30 WATT
SYNC AND INHIBIT
ABSOLUTE MAXIMUM RATINGS
TYPICAL CHARACTERISTICS
Sync (500 to 675 kHz)
• Duty cycle 40% min, 60% max
• Logic low 0.8 V max
• Logic high 4.5 V min, 5 V max
• Referenced to inh/sync return
• If not used, connect to inh/sync return
Inhibit TTL Open Collector
• Logic low (output disabled)
Voltage ≤0.8 V
Inhibit pin current 8.0 mA max
• Referenced to inh/sync return
• Logic high (output enabled)
Open collector
Input Voltage
• 17 to 40 VDC
Output Power
• 25 to 30 watts depending on model
• Input filter current, 2.7 A max.
Lead Soldering Temperature (10 sec per pin)
• 300°C
Storage Temperature Range (Case)
• –65°C to +135°C
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
• 17 to 40 VDC continuous
• 50V for 50 ms transient protection
Case Operating Temperature (Tc)
• –55°C to +125°C full power
• –55°C to +135°C absolute
Derating Output Power/Current
• Linearly from 100% at 125°C to 0% at 135°C
Output Voltage Temperature Coefficient
• 100 ppm/°C typical
Input to Output Capacitance
• 50 pF typ
Current Limit
• 115% of full load typical
Isolation
• 100 megohm minimum at 500 V
Audio Rejection
• 40 dB typical
Conversion Frequency
• Free run 550 min, 600 typ, 650 max kHz
• External sync 500 to 675 kHz
Inhibit Pin Voltage (unit enabled)
• 9 to 11 V
Input Filter DC Resistance
• 0.2 ohms max
EMI FILTER
Noise Rejection
500 kHz
1 MHz
5 MHz
- Minimum
55 dB
60 dB
60 dB
Electrical Characteristics: -55°C to +125° Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
SINGLE OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
FMTR283R3S
FMTR2805S
FMTR2812S
FMTR2815S
OUTPUT CURRENT1
CONDITION
25°C
–55°C TO +125°C
VIN = 17 to 40 VDC
MIN
3.26
3.20
0
TYP
3.30
3.30
––
MAX
3.34
3.40
6.06
MIN
4.95
4.85
0
TYP
5.00
5.00
—
MAX MIN TYP MAX MIN TYP MAX
5.05 11.88 12.00 12.12 14.85 15.00 15.15
5.15 11.64 12.00 12.36 14.55 15.00 15.45
5.0
0
—
2.5
0
—
2.0
UNITS
OUTPUT POWER1
VIN = 17 to 40 VDC
0
—
20
0
—
25
0
—
30
0
—
30
OUTPUT RIPPLE
25°C
10 kHz – 2 MHz
VOLTAGE
LINE REGULATION2
VIN = 17 to 40 VDC
—
—
—
70
—
—
140
180
10
—
—
—
110
—
15
220
260
50
—
—
—
60
—
15
120
160
50
—
—
—
25
—
15
50
90
50
LOAD REGULATION
NO LOAD TO FULL
—
—
10
—
15
50
—
15
50
—
15
50
mV
INPUT VOLTAGE1
NO LOAD TO FULL
17
28
40
17
28
40
17
28
40
17
28
40
VDC
INPUT CURRENT1
NO LOAD
INHIBITED
—
—
30
7
75
8
—
—
35
3
75
8
—
—
35
3
75
8
—
—
35
3
75
8
mA
mA
10 kHz – 10 MHz
—
25°C 73
70
5
75
72
10
—
—
—
75
72
5
77
74
10
—
—
—
79
76
5
82
78
10
—
—
—
80
77
5
83
79
10
—
mA p-p
—
—
1.4
10
12
6
—
—
—
—
—
1.4
10
12
5
—
—
—
—
—
1.4
10
12
5
—
—
—
—
—
1.4
10
12
5
VDC
A
W
mV p-p
mV
INPUT RIPPLE
CURRENT
EFFICIENCY
LOAD FAULT3
STEP LOAD RESP.
STEP LINE RESP.6
START-UP1
INCLUDES FILTER
POWER DISSIPATION
SHORT CIRCUIT 25°C
–55°C TO +125°C
RECOVERY 4, 6
50% – 100% – 50%
TRANSIENT
RECOVERY4, 6
17 – 40 – 17 VDC
TRANSIENT5
RECOVERY4
DELAY
OVERSHOOT6
FULL LOAD
NO LOAD
—
—
—
—
—
±125 ±250
—
200
W
ms
—
—
±200 ±300
60
200
—
—
±250 ±400
60
200
—
—
±350 ±500
60
200
mV pk
µs
±200 ±300
—
300
—
—
±400 ±500
—
300
—
—
±500 ±600
—
300
mV pk
µs
—
—
—
—
±300
300
—
—
—
1.4
5
—
1.4
5
—
1.4
5
—
1.4
5
ms
—
—
0
33
50
150
—
—
0
50
50
250
—
—
0
120
120
600
—
—
0
150
150
750
mV pk
Notes
1. Tc = –55°C to +125°C
2. Operation is limited below 17V (see Figure 19).
3. Indefinite short circuit protection not guaranteed above 125°C case.
4. Recovery time is measured from application of the transient to point at which
Vout is within 1% of final value.
2
%
5. Transition time ≥10 µs.
6. Parameter shall be tested as part of device characterization and after design
and process changes. Thereafter, parameters shall be guaranteed to the
limits specified in the electrical Characteristics table.
FMTR SERIES
30 WATT
DC/DC CONVERTERS
Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
DUAL OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
CONDITIONS
25°C
+VOUT
FMTR2805D
MIN
TYP
MAX
4.95
5.00
5.05
FMTR2812D
MIN
TYP
MAX
11.88 12.00 12.12
FMTR2815D
MIN
TYP
MAX
14.85 15.00 15.15
–VOUT
4.90
5.00
5.08
11.80
12.00
12.18
14.76 15.00
15.23
–55°C TO +125°C +VOUT
4.85
5.00
5.15
11.64
12.00
12.36
14.55
15.00
15.45
–VOUT
14.46 15.00
15.53
UNITS
VDC
4.80
5.00
5.18
11.56
12.00
12.42
OUTPUT CURRENT1, 2
VIN = 17 TO 40 VDC
0
2.5
4.5
0
1.25
2.25
0
1.0
1.8
A
OUTPUT POWER1, 2
VIN = 17 TO 40 VDC
0
—
25
0
—
30
0
—
30
W
—
75
140
—
25
80
—
40
80
—
—
180
—
—
120
—
—
120
OUTPUT RIPPLE
VOLTAGE +/– VOUT
25°C
10 kHz - 2 MHz
LINE REGULATION
+VOUT
—
10
50
—
10
50
—
10
50
VIN = 17 TO 40VDC
–VOUT
—
50
100
—
50
150
—
50
180
LOAD REGULATION
+VOUT
—
5
50
—
15
50
—
15
50
NO LOAD TO FULL
–VOUT
—
45
120
—
45
170
—
40
190
—
8
—
—
5
—
—
3
—
mV p-p
mV
mV
CROSS REGULATION
25°C SEE NOTES 4 & 9
EFFECT ON –VOUT
25°C SEE NOTES 5 & 9
—
5
—
—
4
—
—
4
—
INPUT VOLTAGE1
NO LOAD TO FULL
INPUT CURRENT
CONTINUOUS
TRANSIENT 50 ms
NO LOAD
INHIBITED
17
0
—
—
28
—
35
3
40
50
75
8
17
0
—
—
28
—
50
3
40
50
75
8
17
0
—
—
28
—
50
3
40
50
75
8
VDC
V
mA
mA
10 kHz - 10 MHz
25°C
—
75
72
5
77
74
10
—
—
—
78
75
5
80
77
10
—
—
—
79
76
5
82
78
10
—
—
mA p-p
—
—
—
—
—
1.4
10
12
5.0
—
—
—
—
—
1.4
10
12
5.0
—
—
—
—
—
1.4
10
12
5.0
ms
INPUT RIPPLE
CURRENT1
EFFICIENCY
LOAD FAULT6
STEP LOAD
RESPONSE ± VOUT
STEP LINE9
RESPONSE ± VOUT
START–UP1
POWER DISSIPATION
25°C
SHORT CIRCUIT
RECOVERY9
50 – 100 – 50% BALANCED
TRANSIENT
%
%
W
—
±200
±300
—
±150
±300
—
±200
±400
mV pk
RECOVERY7, 9
17 – 40 – 17 VIN
TRANSIENT8
—
100
200
—
100
200
—
100
200
µs
—
±200
±400
—
±200
±400
—
±400
±500
mV pk
RECOVERY7
DELAY
—
—
—
1.4
300
5
—
—
—
1.4
300
5
—
—
—
1.4
300
5
µs
ms
OVERSHOOT9
FULL LOAD
—
0
50
—
0
120
—
0
150
NO LOAD
—
50
250
—
120
600
—
150
750
Notes
1. Tc = –55°C to +125°C.
2. Up to 90% of the total output current/power is available from either output
providing the positive output is carrying at least 10% of the total output
power.
3. Operation is limited below 17 V (see Figure 19).
4. Effect on the negative output under the following conditions:
+Pout 20% to 80%; –Pout 80% to 20%
5. Effect on the negative output under the following conditions:
+Pout 50%; –Pout 10% to 50%
mV pk
6. Indefinite short circuit protection not guaranteed above 125°C case.
7. Recovery time is measured from application of the transient to point at which
Vout is within 1% of final value.
8. Transition time ≥ 10 µs.
9. Parameter shall be tested as part of device characterization and after design
and process changes. Thereafter, parameters shall be guaranteed to the
limits specified in the electrical Characteristics table.
3
DC/DC CONVERTERS
FMTR SERIES
30 WATT
TRIM AND REMOTE SENSE (AVAILABLE ON SINGLE OUTPUT MODELS ONLY)
FMTR SINGLE OUTPUT CONVERTER
FMTR SINGLE OUTPUT CONVERTER
8
8
+VIN
OUTPUT
COMMON
SENSE
RETURN
10
9
RL
12
SENSE
INPUT
COMMON
7
POSITIVE
OUTPUT
OUTPUT
COMMON
SENSE
RETURN
+VIN
1
10
2
9
RL
12
1
RT
2
SENSE
11
INPUT
COMMON
7
EXTERNAL TRIM CONNECTION
POSITIVE
OUTPUT
11
REMOTE SENSE CONNECTION
1 Make connections at converter.
2 Make connections at load.
FIGURE 3: REMOTE SENSE2, 3
FIGURE 2: TRIM CONNECTION1, 2, 3
Trim Formulas
Vout = desired output voltage; Rt = trim resistor
3.3V: Rt = 1300 * Vout – 4304
1.2475
5V: Rt = 1300 * Vout – 6512
1.2475
12V: Rt = 1300 * Vout – 15631
1.2475
15V: Rt = 1300 * Vout – 19498
1.2475
Notes for Remote Sense and Trim
1. When trimming output voltage and/or remote sensing, the total
output voltage increase must be less than 0.6 volts at the converters
pins to maintain specified performance.
2. If neither voltage trim nor remote sense will be used, connect pin 9
to pin 10 and pin 11 to pin 12 or the output voltage will increase by
1.2 volts
3. CAUTION: The converter will be permanently damaged if the positive remote sense (pin 12) is shorted to ground. Damage may also
result if the output common or positive output is disconnected from
the load with the remote sense leads connected to the load.
PIN OUT
Angled corner indicates pin one.
12
1
11
2
3
4
TOP VIEW
FMTR
(Pin side, marked side)
9
5
8
6
7
See page 7 for dimensions.
FIGURE 4: PIN OUT
4
10
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Single Output
Sync
Inhibit/Sync Rtn
Filter Out Rtn
Filter Out
Inhibit
No connection
Input Common
28 V Input
Sense Rtn
Output Common
Positive Output
Positive Sense
Dual Output
Sync
Inhibit/Sync Rtn
Filter Out Rtn
Filter Out
Inhibit
No connection
Input Common
28V Input
No connection
Negative Output
Output Common
Positive Output
FMTR SERIES
30 WATT
DC/DC CONVERTERS
MODEL NUMBERING KEY
FMTR
28 12
D / ES
Base Model
Input Voltage
Output Voltage
Number of Outputs
(S = single, D = dual)
Screening
(Standard screening has no designator
in this position.)
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
87
85
85
16V
16V
16V
75
70
40V
75
40V
70
5
10
15
20
60
25
40V
72
62
5
10
15
20
5
10
15
20
25
OUTPUT POWER (Watts)
OUTPUT POWER (Watts)
OUTPUT POWER (Watts)
FMTR2805S EFFICIENCY
FMTR2812S EFFICIENCY
FMTR2815S EFFICIENCY
FIGURE 5
FIGURE 7
FIGURE 6
85
90
16V
0
EFFICIENCY (%)
75
70
40V
65
10
16V
85
20
28V
ATTENUATION (dB)
28V
80
EFFICIENCY (%)
77
67
65
65
60
28V
EFFICIENCY (%)
EFFICIENCY (%)
EFFICIENCY (%)
28V
28V
82
80
80
80
40V
75
70
30
40
50
60
70
80
90
60
5
10
15
20
OUTPUT POWER (Watts)
FMTR2812D EFFICIENCY
FIGURE 8
65
5
10
15
20
100
0.1
1
10
OUTPUT POWER (Watts)
FREQUENCY (kHz)
FMTR2815D EFFICIENCY
AUDIO REJECTION, FMTR SERIES
FIGURE 9
100
FIGURE 10
5
FMTR SERIES
30 WATT
DC/DC CONVERTERS
20V/div
25W to 12.5W
VIN
1V/div
100mV/div
20mV/div
20V/div
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
VOUT
VIN
VOUT
12.5W to 25W
50µs/div
50% 100%
FMTR2805S STEP LOAD RESPONSE
FMTR2805S TURN-ON INTO NO LOAD
FIGURE 13
FIGURE 12
–POUT =15W
VIN
20V/div
FIGURE 11
20V/div
500 µs / div
50µs/div
16 TO 40V
FMTR2805S STEP LINE RESPONSE
VIN
100mV/div
15W to 7.5W
+VOUT
5V/div
20mV/div
+VOUT
–VOUT
7.5W to 15W
–VOUT
50µs/div
16 TO 40
50µs/div
25%
50%
FMTR2815D STEP LINE RESPONSE
FMTR2815D +VOUT STEP LOAD RESPONSE
FIGURE 14
16.0
15.5
2812D
INPUT VOLTAGE (Volts)
8
7
6
5
4
3
2
1
0
–1
–2
–3
–4
–5
–6
–7
–8
2805D
COND A
2815D
COND B
2805D
2812D
15.0
14.5
14.0
13.5
13.0
10
20
30
40
50
OUTPUT LOAD (Watts)
10% to 90% LOAD +V
90% to 10% LOAD –V
OUTPUT LOAD (%)
COND. B: 50% LOAD +V, 50% to 10% –V
COND. A: 50% LOAD –V, 50% to 10% +V
CROSS REGULATION
CROSS REGULATION
FIGURE 17
6
FIGURE 16
FIGURE 15
–VOUT VOLTAGE CHANGE (%)
–VOUT VOLTAGE CHANGE (%)
10
9
8
7
2812D
6
5
4
2805D
3
2
1 2815D
0
-1
2815D
-2
-3
-4
2812D
-5
-6
2805D
-7
-8
-9
-10
+POUT 0 3 6 9 12 15 18 21 24 27 30
–POUT 30 27 24 21 18 15 12 9 6 3 0
200µs/div
FMTR2815D TURN-ON INTO NO LOAD
FIGURE 18
9
12
15
18
21
24
27
30
OUTPUT POWER (Watts)
1% DROP
FMTR SINGLES AND DUALS
LOW LINE DROPOUT
FIGURE 19
FMTR SERIES
30 WATT
DC/DC CONVERTERS
Angled corner indicates pin one
CASE U
TOP VIEW
(PIN SIDE)
1.505 max (38.23)
3.005 (76.33) max.
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Kovar/Nickel
Pins
#52 alloy/Gold
compression glass seal
FIGURE 20: CASE U MAXIMUM DIMENSIONS
Seam Seal
Angled corner
indicates pin one.
0.23 (5.8) Lead Length
0.128 dia
(3.25).
1.505 (38.23) max.
0.040 dia
(1.02)
1.380 (35.05)
1.250 (31.75)
1
12
1.050 (26.67)
2
11
0.850 (21.59)
3
10
TOP VIEW CASE U
0.650 (16.51)
4
9
0.450 (11.43)
5
8
0.250 (6.35)
6
7
0.220 (5.59
0.050 (1.27)
0.000
0.410 (10.41) max.
2.880 (73.15)
3.005 (76.33) max.
2.750 (69.85)
0.000
0.120 (3.05)
0.250 (6.35)
0.120 (3.05)
0.000
FIGURE 21: CASE U
CAUTION
Heat from reflow or wave soldering may damage the
device. Solder pins individually with heat application not
exceeding 300°C for 10 seconds per pin.
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places, ±0.01
(0.2) for two decimal places unless otherwise specified
Although every effort has been made to render the case
drawings at actual size, variations in the printing process
may cause some distortion. Please refer to the numerical
dimensions for accuracy.
7
FMTR SERIES
30 WATT
DC/DC CONVERTERS
ENVIRONMENTAL SCREENING
TEST
125°C
STANDARD
125°C
/ES
PRE-CAP INSPECTION 25°C
Method 2017, 2032
yes
yes
TEMPERATURE CYCLE (10 times)
Method 1010, Cond. B, -55°C to 125°C
no
yes
CONSTANT ACCELERATION 25°C
Method 2001, 500 g
no
yes
BURN-IN
96 hours at 125°C case (typical)
no
yes
FINAL ELECTRICAL TEST MIL-PRF-38534, Group A
Subgroups 1 and 4: +25°C case
yes
yes
HERMETICITY TESTING 25°C
Fine Leak, Method 1014, Cond. A
Gross Leak, Method 1014, Cond. C
Gross Leak, Dip (1 x 10-3)
no
no
yes
yes
yes
no
FINAL VISUAL INSPECTION 25°C
Method 2009
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
Contact Information:
www.interpoint.com
Interpoint Headquarters USA
Phone: 1-800-822-8782
+425-882-3100
Email:
[email protected]
Interpoint UK
Phone: +44-1252-872266
Email:
[email protected]
8
FMTR 28001-001-DTS Rev E. This revision supercedes all previous releases.
All technical information is believed to be accurate, but no responsibility is
assumed for errors or omissions. Interpoint reserves the right to make changes in
products or specifications without notice. FMTR Series is a trademark of Interpoint.
Copyright © 1994 - 2002 Interpoint Corporation. All rights reserved.
Interpoint France
Phone: +33-134285455
Email:
[email protected]
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