VPT250-283R3S [VPT]
HIGH RELIABILITY COTS DC-DC CONVERTERS;
| 型号： | VPT250-283R3S |
| 厂家： | 
VPT, Inc. |
| 描述： | HIGH RELIABILITY COTS DC-DC CONVERTERS DC-DC转换器 |
| 文件： | 总10页 (文件大小：1591K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
VPT250-2800S SERIES
HIGH RELIABILITY COTS DC-DC CONVERTERS
Models Available
Input: 16 V to 40 V continuous, 50 V transient
250 W, single output of 3.3 V, 5 V, 12 V, 15 V
-55 °C to 100 °C Operation
1.0 DESCRIPTION
1.1 FEATURES
The VPT250 series of isolated COTS DC-DC converters is a cost
effective solution for many demanding high reliability applications.
A wide input voltage range accommodates nominal 28V inputs
including avionics, mobile, ground systems, and other applications.
A high efficiency design using synchronous rectification reduces
input power requirements and eases thermal management. Low
input and output ripple, fixed operating frequency, and current
sharing capability simplify system design and compliance. A proven
design heritage, no optoisolators and a rugged epoxy encapsulated
package ensure long term reliability.
• High Reliability at Low Cost
• Parallel Up to 5 Units With Current Sharing
• Up to 250 Watts Maximum Output Power
• High Efficiency, Up to 92%
• Wide Input Voltage Range: 16 to 40 Volts per MIL-STD-704 and
MIL-STD-1275
• High Input Transient Voltage: 50 Volts for 1 second
• Input Undervoltage Lockout
• Fixed Frequency
• Output Voltage Trim (+10% / -20% )
• Current Limit Protection
• Short Circuit Protection
• Magnetic Feedback, no Optoisolators
• Wide Temperature Range, -55 °C to 100 °C
• Internally Conformal Coated
The VPT250 series is intended for harsh environments including
severe vibration, shock and temperature cycling. Testing is to
JESD22, MIL-STD-810, and MIL-STD-883.
These converters are designed and manufactured in the USA in a
facility certified to ISO9001, J-STD-001 and IPC-A-610.
• 2000 V Isolation
• Rugged Epoxy Encapsulated V-SHIELD® Package
• Fully compatible with Aqueous cleaning process
This product may incorporate one or more of the following U.S.
patents:
1.2 COMPLIANCE
• MIL-STD-1275
• MIL-STD-704
5,784,266
5,790,389
5,963,438
5,999,433
6,005,780
6,084,792
6,118,673
1.3 PACKAGING
• Low-profile: 2.33” x 2.45” x 0.410”
• Max weight: 118 g
1.4 SIMILAR PRODUCTS AND ACCESSORIES
• DV200 200 W isolated DC-DC converter
• EMI filters, Thermal Pads, Front-End Modules and Accessories
4.0
SALES INFORMATION: phone (425) 353-3010 • fax (425) 353-4030 • vptsales@vptpower.com • www.vptpower.com
1
VPT250-2800S SERIES DATASHEET
2.0 DESCRIPTION
2.1 BLOCK DIAGRAM
2.2 CONNECTION DIAGRAM
Inhibit Circuit (Shown with optional capacitor for turn-on delay)
Output Voltage Trim Circuit
4.0
SALES INFORMATION: phone (425) 353-3010 • fax (425) 353-4030 • vptsales@vptpower.com • www.vptpower.com
2
VPT250-2800S SERIES DATASHEET
2.3 PARALLEL CONNECTION DIAGRAM
4.0
SALES INFORMATION: phone (425) 353-3010 • fax (425) 353-4030 • vptsales@vptpower.com • www.vptpower.com
3
VPT250-2800S SERIES DATASHEET
3.0 SPECIFICATIONS
3.1 ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings
Input Voltage (Continuous):
Input Voltage (Transient, 1 second):
40 V
50 V
Operating Temperature (Full Load):
Storage Temperature:
Lead Solder Temperature (10 seconds):
-40 °C to 100 °C
-55 °C to 125 °C
300 °C
3.2 PERFORMANCE SPECIFICATIONS
Tcase = -55 °C to 100 °C, Vin = +28 V ± 5%, Full Load, Unless Otherwise Specified
VPT250-283R3S
Typ
VPT250-2805S
Typ
Parameter
INPUT
Conditions
Min
Max
Min
Max
Units
Voltage
Continuous
16
-
28
-
40
50
16
-
28
-
40
50
V
V
3
Transient, 1 sec
INH < 1.5 V
No Load
Current
-
-
3.5
190
300
15.5
14.5
5
-
-
3.5
190
500
15.5
14.5
5
mA
mA
mAp-p
V
350
500
15.9
15.1
425
700
15.9
15.1
Ripple Current
Undervoltage Lockout
20 Hz to 10 MHz
Turn On
-
-
15.1
13.9
15.1
13.9
3
V
Turn Off
OUTPUT STATIC
3.3
5
5
-
V
Voltage
Tcase = 25 °C
3.25
3.35
3.38
165
4.92
4.87
0
5.08
5.13
250
3.3
V
Tcase = -55 °C to 100 °C
3.22
2
-
-
-
W
0
0
-
Power
2
50
0
-
-
50
A
Current
4
150
-
150
mVp-p
20 Hz to 10 MHz
Ripple Voltage
Line Regulation
Load Regulation
Vin = 16 V to 40 V
No Load to Full Load
-
-
-
-
-
-
20
50
50
-
-
-
-
-
-
20
50
50
mV
mV
W
3
Load Fault Power Dissipation
Overload
3
-
-
50
-
-
50
W
Short Circuit
OUTPUT DYNAMIC
Load Step, 3/4 to Full Load
Output Transient
1
-
-
260
250
400
500
-
-
260
250
400
500
mVpk
µs
Recovery
3
Line Step , Vin = 16 V to 40 V
-
-
500
300
750
500
-
-
500
300
750
500
mVpk
Output Transient
1
µs
Recovery
Delay
Overshoot
Turn On, Vin = 0 to 28 V
-
-
5
0
10
25
-
-
5
0
10
25
ms
mVpk
FUNCTION
3
0
9
-
11
-
1.5
14
5
0
9
-
11
-
1.5
14
5
V
Output Inhibited
Output Enabled
INH Pin Input
3
V
INH Pin Open Circuit Voltage
3
0
0
V
SHARE Pin Voltage
3
-
5
-
-
5
-
%
kHz
Current Share Accuracy
SYNC Frequency Range
GENERAL
VH - VL= 5 V, D = 50%
264
-
336
264
-
336
Efficiency
85
-
88
-
-
8,000
87
-
90
-
-
8,000
%
µF
3
Capacitive Load
Switching Frequency
Isolation
Weight
264
100
300
336
264
100
300
336
kHz
MΩ
g
2000 V DC, Tcase = 25 °C
GM @ Tcase = 55 °C
-
-
-
118
-
-
-
-
118
-
-
-
-
-
MTBF (MIL-HDBK-217F)
316
316
kHrs
1.
2.
3.
4.
Time for output voltage to settle within 1% of its nominal value.
Derate linearly to 0 at 110°C.
Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified.
Using recommended minimum external capacitance of 1.0 µF.
4.0
SALES INFORMATION: phone (425) 353-3010 • fax (425) 353-4030 • vptsales@vptpower.com • www.vptpower.com
4
VPT250-2800S SERIES DATASHEET
3.2 PERFORMANCE SPECIFICATIONS (CONTINUED)
Tcase = -55 °C to 100 °C, Vin = +28 V ± 5%, Full Load, Unless Otherwise Specified
VPT250-2812S
Min
VPT250-2815S
Typ
Parameter
INPUT
Conditions
Min
Min
Min
Max
Units
Voltage
Continuous
16
-
28
-
40
50
16
-
28
-
40
50
V
V
3
Transient, 1 sec
INH < 1.5 V
No Load
Current
-
-
3.5
190
500
15.5
14.5
5
-
-
3.5
190
500
15.5
14.5
5
mA
mA
mAp-p
V
425
700
15.9
15.1
425
700
15.9
15.1
Ripple Current
Undervoltage Lockout
20 Hz to 10 MHz
Turn On
-
-
15.1
13.9
15.1
13.9
3
V
Turn Off
OUTPUT STATIC
12
12
-
15
15
-
V
Voltage
Tcase = 25 °C
3.25
3.22
0
3.35
3.38
250
4.92
4.87
0
5.08
5.13
250
V
Tcase = -55 °C to 100 °C
2
W
Power
2
0
-
-
20.8
150
0
-
-
16.7
150
A
Current
4
-
-
mVp-p
20 Hz to 10 MHz
Ripple Voltage
Line Regulation
Load Regulation
Vin = 16 V to 40 V
No Load to Full Load
-
-
-
-
-
-
50
100
50
-
-
-
-
-
-
50
100
50
mV
mV
W
3
Load Fault Power Dissipation
Overload
3
-
-
50
-
-
50
W
Short Circuit
OUTPUT DYNAMIC
Load Step, 3/4 to Full Load
Output Transient
1
-
-
390
250
700
500
-
-
390
250
700
500
mVpk
µs
Recovery
3
Line Step , Vin = 16 V to 40 V
-
-
800
300
1200
500
-
-
800
300
1200
500
mVpk
Output Transient
1
µs
Recovery
Delay
Overshoot
Turn On, Vin = 0 to 28 V
-
-
5
0
10
50
-
-
5
0
10
50
ms
mVpk
FUNCTION
3
0
9
-
11
-
1.5
14
5
0
9
-
11
-
1.5
14
5
V
Output Inhibited
Output Enabled
INH Pin Input
3
V
INH Pin Open Circuit Voltage
3
0
0
V
SHARE Pin Voltage
3
-
5
-
-
5
-
%
kHz
Current Share Accuracy
SYNC Frequency Range
GENERAL
VH - VL= 5 V, D = 50%
264
-
336
264
-
336
Efficiency
89
-
92
-
-
1500
89
-
92
-
-
1500
%
µF
3
Capacitive Load
Switching Frequency
Isolation
Weight
264
100
300
336
264
100
300
336
kHz
MΩ
g
2000 V DC, Tcase = 25 °C
GM @ Tcase = 55 °C
-
-
-
118
-
-
-
-
118
-
-
-
-
-
MTBF (MIL-HDBK-217F)
316
316
kHrs
1.
2.
3.
4.
Time for output voltage to settle within 1% of its nominal value.
Derate linearly to 0 at 110 °C.
Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified.
Using recommended minimum external capacitance of 1.0 µF.
4.0
SALES INFORMATION: phone (425) 353-3010 • fax (425) 353-4030 • vptsales@vptpower.com • www.vptpower.com
5
VPT250-2800S SERIES DATASHEET
4.0 PERFORMANCE CURVES
Tcase = 25° C, Full Load, Unless Otherwise Specified
4.1 EFFICIENCY PERFORMANCE CURVES
4.1.1 VPT250-283R3S Efficiency (%) vs. Output Power (W)
4.1.2 VPT250-2805S Efficiency (%) vs. Output Power (W)
4.1.3 VPT250-2812S Efficiency (%) vs. Output Power (W)
4.1.5 VPT250-2815S Efficiency (%) vs. Output Power (W)
4.0
SALES INFORMATION: phone (425) 353-3010 • fax (425) 353-4030 • vptsales@vptpower.com • www.vptpower.com
6
VPT250-2800S SERIES DATASHEET
5.0 MECHANICAL OUTLINES AND PINOUT
Standard Package:
0.410in 0.010 10.41mm 0.25
0.230in 0.015 5.84mm 0.38
1.400in 35.56mm
5
6
1.000in 25.40mm
0.800in 20.32mm
4
3
2
7
8
0.700in 17.78mm
9
0.600in 15.24mm
0.400in 10.16mm
7X PIN
0.039in 0.002
10
1mm 0.05
1
0in 0mm
11
0.300in 7.62mm
4X PIN
0.079in 0.002
2mm 0.05
2.330in 59.18mm MAX
1.900in 48.26mm
4X MOUNTING HOLE
0.010
+
0.130in
BASEPLATE
SURFACE
0.005
-
+0.25
- 0.13
3.30mm
1.
2.
3.
4.
Case temperature is measured on the center of the baseplate surface.
Materials: Baseplate (Aluminum, conductive conversion coating); Cover (Nickel Plated); Pins (Copper, gold over nickel plating)
Mounting holes are not threaded. Recommended fastener is 4-40
This Package is not hermetic. VPT offers a wide range of hermetic products. Please contact VPT for details if hermetic products are required.
Pin Function
Pin Function
1
2
3
4
5
6
28VIN
7
8
-SENSE
SHARE
TRIM
INHIBIT
SYNC
9
CASE
10
11
+SENSE
+VOUT
INCOM
OUTCOM
4.0
SALES INFORMATION: phone (425) 353-3010 • fax (425) 353-4030 • vptsales@vptpower.com • www.vptpower.com
7
VPT250-2800S SERIES DATASHEET
6.0 PACKAGE PIN DESCRIPTION
Pin
Function
Description
1
2
28VIN
Positive Input Voltage Connection
This is an open collector input. Logic Low = Disabled Output. Connect the inhibit pin to input common to disable the output.
Unconnected, open collector or open drain = Enabled Output.
INHIBIT
SYNC
3
Input Synchronization Signal. TTL squarewave, 5 Vpp, 20 - 80% duty cycle, internally capacitively coupled.
Case Connection
4
CASE
5
INCOM
OUTCOM
-SENSE
SHARE
TRIM
Input Return Connection
6
Output Return Connection
7
Output Return Remote Sense. Compensate for up to 0.5 V total drop (positive and return).
Current Share Connection
8
9
Trim Output Voltage to +10%, -20% of Nominal Value. Leave open if not used.
Positive Output Voltage Remote Sense. Compensate for up to 0.5 V total drop (positive and return).
Positive Output Voltage Connection
10
11
+SENSE
+VOUT
7.0 OUTPUT VOLTAGE TRIM
The output voltage can be trimmed down by connecting a resistor between the TRIM pin and the +VOUT pin, or can be trimmed up
by connecting a resistor between the TRIM pin and the OUTCOM pin as shown in Section 2.2. The maximum trim range is +10% up
and –20% down. The appropriate resistor values versus the output voltage are given in the trim table below.
VPT250-283R3S
VPT250-2805S
Rtrim (Ω)
980
VPT250-2812S
VPT250-2815S
Rtrim (Ω)
686
+Vout (V)
3.60
3.55
3.50
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.00
2.95
2.90
2.85
2.80
2.75
2.70
2.65
Rtrim (Ω)
3.94k
8.92k
16.4k
28.8k
53.5k
127k
--
+ Vout (V)
+ Vout (V)
13.2
13.0
12.8
12.6
12.4
12.2
12.0
11.8
11.6
11.4
11.2
11.0
10.8
10.6
10.4
10.2
10.0
9.8
Rtrim (Ω)
+ Vout (V)
5.5
5.4
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
4.4
4.3
4.2
4.1
4.0
1.14k
2.39k
4.26k
7.39k
13.6k
32.4k
--
16.50
16.25
16.00
15.75
15.50
15.25
15.00
14.75
14.50
14.25
14.00
13.75
13.50
13.25
13.00
12.75
12.50
12.25
12.00
4.72k
10.9k
23.4k
60.5k
--
1.69k
3.19k
5.7k
10.7k
25.9k
--
404k
189k
118k
82.4k
61.1k
46.9k
36.8k
29.2k
23.3k
18.5k
486k
226k
140k
96.9k
71.3k
54.2k
42k
548k
266k
172k
126k
97.4k
78.6k
65.3k
55.2k
47.4k
41.1k
36k
552k
270k
175k
128k
99.5k
80.6k
67k
32.8k
25.7k
20.1k
15.4k
11.5k
8.26k
56.9k
49k
42.6k
37.5k
33.2k
9.6
31.8k
4.0
SALES INFORMATION: phone (425) 353-3010 • fax (425) 353-4030 • vptsales@vptpower.com • www.vptpower.com
8
VPT250-2800S SERIES DATASHEET
8.0 ENVIRONMENTAL SCREENING
Screening
Condition
Internal Visual
IPC-A-610, Class 3
Stabilization Bake
Temperature Cycling
Burn-In
MIL-STD-883, Method 1008, Condition B, 125°C, 24 hours
MIL-STD-883, Method 1010, Condition B, -55°C to +125°C, 10 Cycles
96 hours at +100°C
Final Electrical
External Visual
100% at 25 °C
Internal Procedure
9.0 ORDERING INFORMATION
VPT250-
28 05
S
1
2
3
4
(1)
Product
Series
(2)
Nominal Input
Voltage
(3)
Output Voltage
(4)
Number of
Outputs
VPT250-
28
28 Volts
3R3
05
3.3 Volts
5 Volts
S
Single
12
15
12 Volts
15 Volts
Please contact your sales representative or the VPT Inc. Sales Department for more information concerning additional
environmental screening and testing, different input voltage, output voltage, power requirements, and source inspection.
10.0 CONTACT INFORMATION
To request a quotation or place orders please contact your sales representative or the VPT, Inc. Sales Department at:
Phone:
Fax:
(425) 353-3010
(425) 353-4030
E-mail:
vptsales@vptpower.com
All information contained in this datasheet is believed to be accurate, however, no responsibility is assumed for possible errors or
omissions. The products or specifications contained herein are subject to change without notice. VPT, its logo and tagline are
registered trademarks in the U.S. Patent and Trademark Office.
4.0
SALES INFORMATION: phone (425) 353-3010 • fax (425) 353-4030 • vptsales@vptpower.com • www.vptpower.com
9
VPT250-2800S SERIES DATASHEET
11.0 ADDITIONAL INFORMATION
Visit the VPT website for additional technical resources, including:
Product Literature
Application Notes and White Papers
Technical Video Labs
Additional Products For Avionics/Military,
Hi-Temp, Hi-Rel COTS, and Space Applications
4.0
SALES INFORMATION: phone (425) 353-3010 • fax (425) 353-4030 • vptsales@vptpower.com • www.vptpower.com
10
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