VPT100+2800D Series HIGH RELIABILITY COTS DC-DC CONVERTERS DESCRIPTION FEATURES The VPT100 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 reduces input power requirements and eases thermal management. Low input and output ripple, fixed operating frequency, and companion EMI filters simplify system design and compliance. A proven design heritage, no optoisolators and a rugged allmetal package ensure long term reliability. The VPT100 series is intended for harsh environments including severe vibration, shock and temperature cycling. Testing is to JESD22, MIL-STD810, 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. High Reliability at Low Cost Up to 100 Watts Maximum Output Power High Efficiency, Up to 89% Wide Input Voltage Range: 16 to 40 Volts per MIL-STD-704 and MIL-STD-1275 High Input Transient Voltage: 50 Volts for 1 sec Input Undervoltage Lockout Fixed Frequency Output Voltage Trim (+10% / -20% ) Output Soft Start Current Limit Protection Short Circuit Protection Magnetic Feedback, no Optoisolators Wide Temperature Range, -55C to 100C Internally Conformal Coated Six Sided Non-Hermetic Rugged Metal Enclosure Meets MIL-STD-461 Revisions C, D, E and F EMC Requirements When Used With VPT's EMI Filters This product may incorporate one or more of the following U.S. patents: 5,784,266 5,790,389 5,963,438 5,999,433 6,005,780 6,084,792 6,118,673 Figure 1 - VPT100+2800D Converter (Not To Scale) VPT100+2800D-4.0 11314 4th Avenue West, Suite 206 Everett, WA 98204 http://www.vpt-inc.com Sales Information: Phone: (425) 353-3010 Fax: (425) 353-4030 E-mail: vptsales@vpt-inc.com 1 VPT100+2800D Series SPECIFICATIONS (TCASE = -55C to +100C, VIN = +28V 5%, Full Load, Unless Otherwise Specified) ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) Input Voltage (Transient, 1 second) Output Power Power Dissipation (Full Load, TCASE = +100C) Parameter 40 VDC 50 Volts 100 Watts 17 Watts Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) VPT100+2812D Conditions Min Typ +17C -55C to +125C 300C 76 Grams VPT100+2815D Max Min Typ Max Units STATIC Continuous INPUT 3 Voltage Current 16 28 40 16 28 40 V Transient, 1 sec - - 50 - - 50 V Inhibited - - 5 - - 5 mA No Load - 50 100 - 50 100 mA - - 200 - - 200 mAp-p 4 Ripple Current Full Load , 20Hz to 10MHz Inhibit Pin Input 3 Inhibit Pin Open Circuit Voltage 3 UVLO Turn On 3 UVLO Turn Off OUTPUT 4 Voltage 2,5 Current 2,5 Ripple Voltage Line Regulation Load Regulation Cross Regulation 0 - 1.5 V 9.0 12.0 14.0 V 14.5 - 15.8 14.5 - 15.8 V V 14.0 - 15.0 14.0 - 15.0 11.82 12.0 12.18 14.775 15.0 15.225 V +VOUT TCASE = -55C to +100C 11.70 12.0 12.30 14.625 15.0 15.375 V -VOUT TCASE = 25C 11.70 12.0 12.30 14.625 15.0 15.375 V -VOUT TCASE = -55C to +100C 11.58 12.0 12.42 14.475 15.0 15.525 V - - 100 - - 100 W - - 70 - - 70 W VOUT Either Output VOUT Either Output - - 5.83 - - 4.66 A VOUT Full Load , 20Hz to 10MHz - - 100 - - 100 mVp-p +VOUT VIN = 16V to 40V - - 20 - - 20 mV -VOUT VIN = 16V to 40V - - 100 - - 100 mV +VOUT No Load to Full Load 4 - - 100 - - 100 mV 4 4 -VOUT No Load to Full Load - - 150 - - 150 mV -VOUT +Load 70%, -Load 30% +Load 30%, -Load 70% - - 450 - - 450 mV 4 86 88 - 87 89 - % 3 - - 24 - - 24 W Short Circuit - - 24 - - 24 W Either Output - - 500 - - 500 F 300 - 380 300 - 380 kHz kHz Full Load LOAD FAULT POWER DISSIPATION 3 1.5 14.0 TCASE = 25C EFFICIENCY CAPACITIVE LOAD 12.0 +VOUT Total Power 0 9.0 Overload SWITCHING FREQUENCY SYNC FREQUENCY RANGE VH - VL = 5V, DC = 20-80% 300 - 380 300 - 380 ISOLATION 500 VDC, TCASE = 25C 100 - - 100 - - M MTBF (MIL-HDBK-217F) GM @ TC = 55C - 344 - - 344 - kHrs See notes next page. VPT100+2800D-4.0 2 VPT100+2800D Series SPECIFICATIONS (TCASE = -55C to +100C, VIN = +28V 5%, Full Load, Unless Otherwise Specified) ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) Input Voltage (Transient, 1 second) Output Power Power Dissipation (Full Load, TCASE = +100C) Parameter 40 VDC 50 Volts 100 Watts 17 Watts Conditions Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) VPT100+2812D +17C -55C to +125C 300C 76 Grams VPT100+2815D Units Min Typ Max Min Typ Max - - 600 - - 600 - - 300 - - 300 Sec - - 900 - - 1200 mVPK - - 300 - - 300 Sec - 6 10 - 6 10 mSec - 0 50 - 0 50 mVPK DYNAMIC Load Step Output Transient VOUT 1 Load Step Recovery Line Step Output Transient 3 VOUT 1,3 Line Step Recovery Turn On Delay Turn On Overshoot Notes: 1. 2. 3. 4. 5. VOUT Half Load to Full Load VIN = 16V to 40V VIN = 0V to 28V mVPK Time for output voltage to settle within 1% of its nominal value. Derate linearly to 0 at 110C. Verified by qualification testing. Half load at +VOUT and half load at -VOUT. Up to 70% of the total power or current can be drawn from any one of the two outputs. VPT100+2800D-4.0 3 VPT100+2800D Series BLOCK DIAGRAM PIN 10 +V OUT PIN 8 PIN 1 OUT COM Current Sense 28V IN IN COM PIN 6 T1 PIN 5 Q1 UNDER VOLTAGE SHUTDOWN INH PIN 3 SYNC -V OUT PWM CONTROL MAGNETIC FEEDBACK PRIMARY HOUSEKEEPING SUPPLY VOLTAGE AND CURRENT AMPLIFIERS PIN 9 TRIM PIN 2 Figure 2 CONNECTION DIAGRAM VPTF10-28 EMI FILTER 1 28V IN 28V OUT 5 1 VPT100+2800D DC-DC CONVERTER 10 28V IN +V OUT 2 SYNC 28 Vdc + - CASE 4 3 TRIM IN COM OUT COM 3 5 LOAD INH OUT COM 2 9 IN COM -V OUT 8 6 LOAD CASE Figure 3 VPT100+2800D-4.0 4 VPT100+2800D Series CONNECTION DIAGRAMS +V OUT 28VIN PIN 10 1 R-TRIM 10K (TRIM DOWN) 10K TRIM INH 3 + BIAS Rt 0.75V OPTIONAL CAPACITOR + - PIN 9 R-TRIM Ri (TRIM UP) OUT COM 11.5V PIN 8 IN COM 5 -V OUT PIN 6 Figure 4 - Inhibit Circuit (Shown with optional capacitor for turn-on delay) Figure 5 - Output Voltage Trim Circuit OUTPUT VOLTAGE TRIM The output voltage can be trimmed down by connecting a resistor between the TRIM pin and the +V OUT pin, or can be trimmed up by connecting a resistor between the TRIM pin and the OUT COM pin as shown in Figure 5. 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. VPT100+2812D VPT100+2800D-4.0 VPT100+2815D VOUT (V) RTRIM () VOUT (V) RTRIM () 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 1.14k 2.39k 4.26k 7.39k 13.6k 32.4k -548k 266k 172k 126k 97.4k 78.6k 65.3k 55.2k 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 13.00 686 1.69k 3.19k 5.7k 10.7k 25.9k -551k 270k 175k 128k 99.5k 80.6k 67k 56.9k 10.2 10.0 9.8 9.6 47.4k 41.1k 36k 31.8k 12.75 12.50 12.25 12.00 49k 42.6k 37.5k 33.2k 5 VPT100+2800D Series EFFICIENCY PERFORMANCE CURVES (TCASE = 25C, Full Load, Unless Otherwise Specified) VIN = 28V VIN = 40V 95 95 90 90 Efficiency (%) Efficiency (%) VIN = 16V 85 80 75 85 80 75 0 25 50 75 Output Power (W) 100 0 25 50 75 Output Power (W) Figure 6 - VPT100+2812D Figure 7 - VPT100+2815D Efficiency (%) vs. Output Power (W) Efficiency (%) vs. Output Power (W) VPT100+2800D-4.0 100 6 VPT100+2800D Series CROSS REGULATION CURVES (TCASE = 25C, Full Load, Unless Otherwise Specified) +Io = 30% +Io = 50% -11.4 -14.4 -11.6 -14.6 -11.8 -14.8 -12 -15 -Vo (V) -Vo (V) +Io = 10% -12.2 -12.4 -12.6 +Io = 70% -15.2 -15.4 -15.6 -12.8 -15.8 -13 +Io=0.83A +Io=2.5A +Io=4.17A +Io=5.83A -16 -13.2 +Io=0.67A +Io=2A +Io=3.33A +Io=4.67A -16.2 0 1 2 3 4 -Io (A) 5 6 0 1 2 3 Figure 8 - VPT100+2812D Figure 9 - VPT100+2815D -Vout (V) vs. -Iout (A) -Vout (V) vs. -Iout (A) VPT100+2800D-4.0 4 5 -Io (A) 7 VPT100+2800D Series EMI PERFORMANCE CURVES (TCASE = 25C, VIN = +28V 5%, Full Load, Unless Otherwise Specified) MIL-STD-461C CE03 Narrowband Emission Level [dBA] 80 60 40 20 0 0.01 0.1 Frequency [MHz] 1 MIL-STD-461C CE03 Narrowband Emission Level [dBA] 40 30 20 10 0 1 Figure 10 - VPT100+2800D without EMI Filter 10 Frequency [MHz] 50 Figure 11 - VPT100+2800D with VPTF Series EMI Filter MIL-STD-461E CE102 Narrowband Emission Level [dBV] 90 70 50 30 10 0.01 0.1 .25 Frequency [MHz] MIL-STD-461E CE102 Narrowband Emission Level [dBV] 90 70 50 30 10 0.1 Figure 12 - VPT100+2800D without EMI Filter VPT100+2800D-4.0 1 Frequency [MHz] 10 Figure 13 - VPT100+2800D with VPTF Series EMI Filter 8 VPT100+2800D Series PACKAGE SPECIFICATIONS Top View Side View PIN Bottom View FUNCTION 1 28V IN 2 SYNC 3 INHIBIT 4 CASE 5 IN COM 6 -VOUT 7 NC 8 OUTCOM 9 TRIM 10 +VOUT Figure 14 - Package and Pinout (Dimensional Limits are 0.005" Unless Otherwise Stated) Package Notes: 1. Case temperature is measured on the center of the baseplate surface. 2. Materials: Baseplate - aluminum, conductive conversion coating. Cover - nickel plated. Pins - copper, gold over nickel plating. 3. Mounting holes are not threaded. Recommended fastener is 4-40. 4. This Package is not hermetic. VPT offers a wide range of hermetic products. Please contact VPT for details if hermetic products are required. 5. For applications requiring exposure to liquid cleaning, please contact VPT. VPT100+2800D-4.0 9 VPT100+2800D Series PACKAGE PIN DESCRIPTION Pin Function Description 1 28VIN Positive Input Voltage Connection 2 SYNC Input Synchronization Signal. TTL squarewave, 5Vpp, 20 - 80% duty cycle, internally capacitively coupled. 3 INHIBIT 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. 4 CASE Case Connection 5 INCOM Input Return Connection 6 -VOUT Negative Output Voltage Connection 7 NC No Connection. 8 OUTCOM Output Return Connection 9 TRIM Trim Output Voltage to +10%, -20% of Nominal Value. Leave open if not used. 10 +VOUT Positive Output Voltage Connection 100% ENVIRONMENTAL SCREENING Screening Condition Internal Visual IPC-A-610 Stabilization Bake MIL-STD-883, Method 1008, Condition B, 125C, 24 hours Temperature Cycling MIL-STD-883, Method 1010, Condition B, -55C to +125C, 10 Cycles Burn-In 96 hours at +100C Final Electrical 100% at 25C External Visual MIL-STD-883, Method 2009 VPT100+2800D-4.0 10 VPT100+2800D Series ORDERING INFORMATION VPT100+ 28 12 D 1 2 3 4 (1) (2) (3) (4) Product Series Nominal Input Voltage Output Voltage Number of Outputs VPT100+ 28 28 Volts 12 15 12 Volts 15 Volts D Dual CONTACT INFORMATION To request a quotation or place orders please contact your sales representative or the VPT Inc. Sales Department at: Phone: Fax: E-mail: (425) 353-3010 (425) 353-4030 vptsales@vpt-inc.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. VPT100+2800D-4.0 11