SMTR281R5SKR

Crane Aerospace & Electronics Power Solutions SMTR Single, Dual and Triple DC/DC Converters 28 VOlT INPuT – 30 WaTT – PENDINg REVISION F RElEaSE FEaTuRES Single, Dual and Triple models • Operating temperature -55° to +125°C • Radiation hardness assurance (RHA) to level R 100 kRad(Si) • Input voltage range 16 to 40 VDC • Fully Isolated, magnetic feedback • Transient protection 50 V for 50 ms • Qualified to MIL-PRF-38534 Class H and K • Fixed high frequency switching, 600 kHz • Inhibit function • Trim function or remote sense on single output models • Synchronization function • Indefinite short circuit protection • Up to 84% efficiency (up to 73% efficiency triple models) VDC Output SIngLE DUAL TRIPLE 1.5 ±5 +5 & ±12 2.5 ±12 +5 & ±15 3.3 ±15 5 12 15 MODELS DESCRIPTION The SMTR Series™ of 28 volt DC/DC converters offers up to 30 watts of output power from single, dual or triple output configurations. They operate over the full military temperature range of -55°C to +125°C with up to 84% efficiency (up to 73% efficiency triple models). SMTR converters are packaged in hermetically sealed metal enclosures, making them ideal for use in military, aerospace and other high reliability applications. Screening SMTR converters offer screening options to Space Prototype (O), Class H, or Class K. Radiation tolerant to Radiation Hardness Assurance (RHA) levels of “-” (O), “P,” or “R,” per MIL-STD38534. Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of MIL-PRF-38534, which is defined as “no RHA”. See “Class H and K, MIL-PRF-38534 Screening” tables for more information. SMTR converters have internal input filter that help reduce the need for external components in normal operation. For systems that require compliance with MIL-STD-461C’s CE03 standard, Interpoint offers filter/transient suppression modules (including the SFMC-461 and SFCS28-461), which will result in compliance. For the lowest noise performance, connection of the case to input common is recommended. The connection can be hard-wired or AC coupled with a small ceramic bypass capacitor. 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 125% of the maximum rated output current. Synchronization converter DeSign The SMTR 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 by using a wide bandwidth magnetic feedback and, on single output models, through use of remote sense. On dual output models, the positive output is independently regulated and the negative output is cross regulated through the use of tightlycoupled magnetics. The SMTR Triple Series DC/DC converter’s design includes individual regulators on the auxiliary outputs which provide for no cross regulation error when a minimum 300 mA load is maintained on the main (+5) output. Crane Aerospace & Electronics Electronics group (Interpoint Brand) PO Box 97005 • Redmond WA 98073-9705 425.882.3100 • power@crane-eg.com www.interpoint.com Synchronizing the converter with the system clock allows the designer to confine switching noise to clock transitions, minimizing interference and reducing the need for filtering. In sync mode, the converter will run at any frequency between 500 kHz and 675 kHz. The sync control operates with an active high at any duty cycle between 40% and 60%. The sync pin should be connected to input common pin when not in use. Rev F - 20090324 - Pending Revision F Release Cleared by U.S. DoD OSR for Public Release OSR case number 09S-0995, dated March 13, 2009. Page 1 of 21 Crane Aerospace & Electronics Power Solutions SMTR Single, Dual and Triple DC/DC Converters 28 VOlT INPuT – 30 WaTT – PENDINg REVISION F RElEaSE WiDe voltage range SMTR converters are designed to provide full power operation over a full 16 to 40 VDC voltage range. Operation below 16 volts, including MIL-STD-704D emergency power conditions is possible with derated power. inhibit Function improveD Dynamic reSponSe The SMTR Series feed-forward compensation system provides excellent dynamic response and noise rejection. Audio rejection is typically 50 dB (for Triple output models). The min. to max. step line transient response is typically less than 4%. SMTR converters provide an inhibit terminal that can be used to disable internal switching, resulting in no output and very low quiescent input current. The converter is inhibited when an active low (≤0.8V) is applied to the inhibit pin. The unit is enabled when the pin, which is internally connected to a pull-up resistor, is left unconnected or is connected to an open-collector gate. The open circuit output voltage associated with the inhibit pin is 9 to 11 VDC. In the inhibit mode, a maximum of 8 mA must be sunk from the inhibit pin. TRIM aND REMOTE SENSE (aVaIlablE ON SINglE OuTPuT MODElS ONly) SMTR SINGLE OUTPUT CONVERTER 1 +VIN OUTPUT COMMON SENSE RETURN SENSE 10 INPUT COMMON POSITIVE OUTPUT 4 1 3 6 1 RT 5 10 RL SENSE INPUT COMMON POSITIVE OUTPUT SMTR SINGLE OUTPUT CONVERTER 1 +VIN OUTPUT COMMON SENSE RETURN 4 2 3 6 2 RL 5 EXTERNAL TRIM CONNECTION 1 Make connections at converter. REMOTE SENSE CONNECTION 2 Make connections at load. Figure 1: trim COnneCtiOn1, 2, 3 Figure 2: remOte SenSe2, 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 3 to pin 4 and pin 5 to pin 6 or the output voltage will increase by 1.2 volts. 3. CAUTIOn: The converter will be permanently damaged if the positive remote sense (pin 6) 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. www.interpoint.com Page 2 of 21 Rev F - 20090324 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMTR Single, Dual and Triple DC/DC Converters 28 VOlT INPuT – 30 WaTT – PENDINg REVISION F RElEaSE OPERaTINg CONDITIONS aND ChaRaCTERISTICS Input Voltage Range • 16 to 40 VDC continuous • 50 V for 50 msec transient audio Rejection • 40 dB typ (50 dB typ, triple output) Output Power • Up to 30 watts depending on model Conversion Frequency • Free run 550 min, 600 typ, 650 max kHz • External sync 500 to 675 kHz lead Soldering Temperature (10 sec per pin) • 300°C Storage Temperature Range (Case) • -65°C to +135°C Case Operating Temperature (Tc) • -55°C to +125°C full power • -55°C to +135°C absolute SyNC aND INhIbIT Derating Output Power/Current • Linearly from 100% at 125°C to 0% at 135°C Output Voltage Temperature Coefficient • 100 ppm/°C typical single and dual outputs • 200 ppm/°C main, 300 ppm/°C aux triple output Input to Output Capacitance • 50 pF typ (100 pF typ triple outputs) Current limit • 125% of full load typical Sync • Input frequency 500 to 675 kHz • Duty cycle 40% min, 60% max • Active low 0.8 V max • Active high 4.5 V min, 5 V max • Referenced to input common • If not used, connect to input common Inhibit • Active low (output disabled) ‣ oltage ≤0.8 V V ‣ Inhibit pin source current 8.0 mA max ‣ Referenced to input common • Active high (output enabled) ‣ Open collector or unconnected ‣ If not used, leave unconnected ‣ Inhibit pin voltage, 9 to 11 V Isolation • 100 megohm minimum at 500 VDC • Any pin to case, except case pin MEChaNICal aND ENVIRONMENTal Size (maximum) • Single and dual output ‣ non-flanged: 2.125 x 1.115 x 0.400 inches (53.98 x 28.58 x 10.16 mm) See case H2 for dimensions. ‣ Flanged: 2.910 x 1.115 x 0.400 inches (73.79 x 28.58 x 10.16 mm) See case K3 for dimensions. • Triple output ‣ non-flanged: 1.950 x 1.350 x 0.405 inches (49.53 x 34.29 x 10.29 mm) See case F1 for dimensions. ‣ Flanged: 2.720 x 1.350 x 0.405 inches (69.09 x 34.29 x 10.29 mm) See case J1 for dimensions. Screening Space Prototype (O), Class H, or Class K are radiation tolerant to Radiation Hardness Assurance (RHA) levels of “-” (O), “P” or “R”, per MIL-STD-38534. Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation hardness Assurance level of MIL-PRF- 38534, which is defined as “no RHA”. See “Class H and K, MIL-PRF-38534 Screening” tables for more information, page 21. Available configurations are: OO, HP, KP, HR, and KR Weight (maximum) • Single and dual non-flanged 50 grams, flanged 52 grams • Triple non-flanged 58 grams, flanged 62 grams www.interpoint.com Page 3 of 21 Rev F - 20090324 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMTR Single, Dual and Triple DC/DC Converters 28 VOlT INPuT – 30 WaTT – PENDINg REVISION F RElEaSE PIN OuT Pin 1 2 3 4 5 6 7 8 9 Positive Input Inhibit Single Output Positive Input Inhibit Positive Output Dual Output Triple Output Positive Input Sense Return Main (+5) Output Output Common neg. Aux. Output Pos. Aux. Output Case ground Case ground Inhibit Sync Output Common Positive Output Positive Sense Case ground Case ground Sync Input Common Output Common negative Output Case ground Case ground Case ground Sync Input Common 10 Input Common Dot on top of cover indicates pin one. Dot on top of cover indicates pin one. 1 2 3 4 5 10 BOTTOM VIEW SMTR SINGLE FLANGED AND NON-FLANGED 9 8 7 1 2 3 4 5 6 BOTTOM VIEW SMTR DUAL FLANGED AND NON-FLANGED 10 9 8 7 6 Dotted line outlines flanged package option. Dotted line outlines flanged package option. Figure 3: pin Out Single Output mODelS See cases H2 and K3 for dimensions. Figure 4: pin Out Dual Output mODelS See cases H2 and K3 for dimensions. Squared corner and dot on top of package indicate pin one. 1 2 3 4 5 BOTTOM VIEW SMTR TRIPLE FLANGED AND NON-FLANGED 10 9 8 7 6 Dotted line outlines flanged package option. See cases F1 and J1 for dimensions. Figure 5: pin Out Smtr triple Inhibit Sync In Leave unconnected PINS NOT IN uSE Sense lines www.interpoint.com Connect to Input Common Must be connected to appropriate outputs Page 4 of 21 Rev F - 20090324 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMTR Single, Dual and Triple DC/DC Converters 28 VOlT INPuT – 30 WaTT – PENDINg REVISION F RElEaSE MODEl NuMbERINg kEy Base Model Input Voltage SMTR 28 512 T F/K R In PROCESS In PROCESS 5962R0150102KXC 5962R9306802KXC 5962R9306902KXC 5962R9307002KXC 5962R9320502KXC 5962R9307102KXC 5962R9307202KXC In PROCESS 5962R9307402KXC StanDarD miCrOCirCuit Drawing (SmD) SMD NuMbERS Smtr Similar part SMTR281R5S/KR SMTR282R5S/KR SMTR283R3S/KR SMTR2805S/KR SMTR2812S/KR SMTR2815S/KR SMTR2805D/KR SMTR2812D/KR SMTR2815D/KR SMTR28512T/KR SMTR28515T/KR Output Voltage (Main and aux. Vout for triple models) Number of Outputs (S=single, D=dual, T=triple) Case Option ("F" indicates flanged option, non-flanged case has no designator in this position) Screening Radiation Hardness Assurance (RHA) To indicate the flanged case option change the “X” to “Z” In the SMD number. The SMD number shown is for Class K screening, non-flanged, and Radiation Hardness Assurance (RHA) level R. See the SMD for the numbers for other screening and radiation levels. For exact specifications for an SMD product, refer to the SMD drawing. Call your Interpoint representative for status on the SMTR SMD releases which are “in process.” SMDs can be downloaded from: http://www.dscc.dla.mil/programs/smcr enter SMTR28 BASE MODEL VOUT VALUE 1 1R5, 2R5, 3R3, 05, 12, 15 05, 12, 15 512, 515 MODEl SElECTION One SeleCtiOn FrOm eaCh CategOry / nUMBER OF OUTPUTS 2 S D T CASE OPTIOn 3 (BLAnK FOR nOn-FLAngED) F (FLAngED) SCREEnIng 4 O h k RHA 5 O P R notes: 1. VOUT Value: An R indicates a decimal point. 1R5 is 1.5 volts out. The values os 1R5, 2R5, and 3R3 are only available in single output models. The 512 and 515 triple output converters are +5 volt main and ±12 or ±15 volt auxiliaries. 2. S is a single output, D is a dual output, and T is a triple output 3. The case option is left blank for the standard, non-flanged, case. For the flanged case, use an F in the case option. 4. A screening level of O is a Space Prototype and is only used with RHA O. 5. Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of MIL-PRF-38534, which is defined as “no RHA. RHA O is only available with Screening level O. See page 21 for more information. www.interpoint.com Page 5 of 21 Rev F - 20090324 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMTR Single, Dual and Triple DC/DC Converters 28 VOlT INPuT – 30 WaTT – PENDINg REVISION F RElEaSE Electrical Characteristics: -55 to +125° C TC, 28 VDC Vin, 100% load, no irraditaion, unless otherwise specified. SIngLE OUTPUT MODELS parameter Output VOltage Output Current Output pOwer Output ripple 10 khz tO 2 mhz line regulatiOn lOaD regulatiOn input VOltage 2 SMTR281R5S MIn 1.485 1.455 0 — – — — — 16 — — — — — 57 55 TYP 1.50 — — — 20 — — – 28 — 30 — — — 61 — — — — — — — — — — — MAX 1.515 1.545 8.0 12 50 50 10 10 40 50 60 90 8 50 — — 13 6 ±125 200 ±300 300 5 30 75 1000 SMTR285R2S MIn 2.475 2.425 0 — — — — — 16 — — — — — 68 66 — — — — — — — — — — TYP 2.50 — — — 25 — — — 28 — 30 — — — 71 — — — — — — — — — — — MAX 2.525 2.575 8.0 20 65 65 10 10 40 50 60 100 8 50 — — 13 6 ±150 200 ±300 300 5 30 125 1000 SMTR283R3S MIn 3.267 3.201 0 — — — — — 16 — — — — — 70 66 — — — — — — — — — — TYP 3.30 — — — 20 — — — 28 — 30 — — — 76 — — — — — — — — — — — MAX 3.333 3.399 6.06 20 40 50 10 10 40 50 75 75 8 50 — — 12 6 ±250 200 ±300 300 5 50 150 300 COnDitiOnS 25°C Vin = 16 Vin = 16 tO tO unitS VDC A W mV p-p mV mV VDC V 40 VDC 40 VDC 25°C Vin = 16 tO 40 VDC nO lOaD tO Full nO lOaD tO Full COntinuOuS TRAnSIEnT 50 ms 1 25°C, nO lOaD nO lOaD inhiBiteD input Current mA mA p-p % W ms mV pk µs mV pk µs ms mV pk input ripple Current 3 eFFiCienCy lOaD Fault 7 10 khz - 10 mhz 25°C ShOrt CirCuit pOwer DiSSipatiOn reCOVery 1 50% - 100% - 50% lOaD tranSient reCOVery 1, 4 tranSient reCOVery Delay OVerShOOt Full lOaD1 OVerShOOt nO lOaD1 4 — — — — — — — — — — Step lOaD reSpOnSe 5 Step line reSpOnSe 1, 5 16 - 40 -16 VDC Start-up 6 CapaCitiVe lOaD 1 25°C , nO eFFeCt On DC perFOrmanCe µF notes (All temperatures in tables and notes refer to case temperature, TC.) 1. guaranteed by design, not tested. 2. Operation is limited below 16 V (see Figure 22). 3. Tested with 6800 pF ceramic bypass capacitors connected externally from input common to case. 4. Recovery time is measured from application of the transient to the point at which Vout is within 1% of final value. 5. Transient transition time > 10 µs. 6. Tested on release from inhibit. 7. Short circuit protection not guaranteed above 125°C case temperature. www.interpoint.com Page 6 of 21 Rev F - 20090324 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMTR Single, Dual and Triple DC/DC Converters 28 VOlT INPuT – 30 WaTT – PENDINg REVISION F RElEaSE Electrical Characteristics: -55 to +125° C TC, 28 VDC Vin, 100% load, no irraditaion, unless otherwise specified. SIngLE OUTPUT MODELS parameter Output VOltage Output Current Output pOwer Output ripple 10 khz tO 2 mhz line regulatiOn lOaD regulatiOn input VOltage 2 SMTR282805S MIn 4.95 4.85 0 — – — — — 16 — — — — — 74 71 TYP 5.00 — — — 20 — — — 28 — 35 — — — 78 — — — — — — — — — — — MAX 5.05 5.15 5.0 25 50 90 50 50 40 50 75 75 8 50 — — 12 5 ±300 200 ±300 300 5 50 250 300 MIn SMTR2812S TYP 12.00 — — — 15 — — — 28 — 35 — — — 83 — — — — — — — — — — — MAX 12.12 12.36 2.5 30 40 90 50 50 40 50 75 75 8 50 — — 12 5 ±400 200 ±500 300 5 120 600 3000 MIn 11.88 11.64 0 — — — — — 16 — — — — — 78 75 — — — — — — — — — — SMTR2815S TYP 15.00 — — — 15 — — — 28 — 35 — — — 84 — — — — — — — — — — — MAX 15.15 15.30 2.0 30 40 90 50 50 40 50 75 75 8 50 — — 12 5 ±500 200 ±600 300 5 150 750 3000 14.85 14.70 0 — — — — — 16 — — — — — 79 76 — — — — — — — — — — COnDitiOnS 25°C Vin = 16 Vin = 16 tO tO unitS VDC A W mV p-p mV mV VDC V 40 VDC 40 VDC 25°C Vin = 16 tO 40 VDC nO lOaD tO Full nO lOaD tO Full COntinuOuS TRAnSIEnT 50 ms 1 25°C, nO lOaD nO lOaD inhiBiteD input Current mA mA p-p % W ms mV pk µs mV pk µs ms mV pk input ripple Current 3 eFFiCienCy lOaD Fault 7 10 khz - 10 mhz 25°C ShOrt CirCuit pOwer DiSSipatiOn reCOVery 1 50% - 100% - 50% lOaD tranSient reCOVery 1, 4 tranSient reCOVery Delay OVerShOOt Full lOaD1 OVerShOOt nO lOaD1 4 — — — — — — — — — — Step lOaD reSpOnSe 5 Step line reSpOnSe 1, 5 16 - 40 -16 VDC Start-up 6 CapaCitiVe lOaD 1 25°C , nO eFFeCt On DC perFOrmanCe µF notes (All temperatures in tables and notes refer to case temperature, TC.) 1. guaranteed by design, not tested. 2. Operation is limited below 16 V (see Figure 22). 3. Tested with 6800 pF ceramic bypass capacitors connected externally from input common to case. 4. Recovery time is measured from application of the transient to the point at which Vout is within 1% of final value. 5. Transient transition time > 10 µs. 6. Tested on release from inhibit. 7. Short circuit protection not guaranteed above 125°C case temperature. www.interpoint.com Page 7 of 21 Rev F - 20090324 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMTR Single, Dual and Triple DC/DC Converters 28 VOlT INPuT – 30 WaTT – PENDINg REVISION F RElEaSE Electrical Characteristics: -55 to +125° C TC, 28 VDC Vin, 100% load, no irraditaion, unless otherwise specified. DUAL OUTPUT MODELS parameter Output VOltage -55 -55 Output Current 2, 3 tO tO SMTR2805D MIn +VOut -VOut 4.95 -4.93 4.85 -4.83 0 — — — +VOut -VOut +VOut -VOut — — — — — — 16 — — — — — 74 74 TYP 5.00 5.00 — — 2.50 — 20 — — — — — — — 28 — 35 — — — 76 — — — — — — — — — — — MAX 5.05 -5.08 5.15 -5.18 4.50 25 40 90 50 100 50 100 12 6 40 50 75 75 8 50 — — 10 5.0 ±300 200 ±400 300 5 180 250 500 MIn SMTR2812D TYP 12.00 -12.00 — — 1.25 — 30 — — — — — — — 28 — 50 — — — 80 — — — — — — — — — — — MAX 12.12 -12.18 12.36 -12.42 2.25 30 80 120 50 150 50 150 8.3 6 40 50 75 75 8 50 — — 10 5.0 ±300 200 ±400 300 5 120 600 500 MIn 11.88 -11.82 11.64 -11.58 0 — — — — — — — — — 16 — — — — — 77 77 — — — — — — — — — — SMTR2815D TYP 15.00 -15.00 — — 1.00 — 25 — — — — — — — 28 — 50 — — — 81 — — — — — — — — — — — MAX 15.15 -15.23 15.45 -15.53 1.80 30 80 120 50 180 50 180 8 6 40 50 75 75 8 50 — — 10 5.0 ±400 200 ±500 300 5 150 750 500 14.85 -14.77 14.55 -14.47 0 — — — — — — — — — 16 — — — — — 78 78 — — — — — — — — — — COnDitiOnS 25°C 25°C unitS +125°C +VOut +125°C -VOut VDC either Output Vin = 16 tO 40 VDC Vin = 16 tO A W mV p-p Output pOwer 3, 4 Output ripple ±VOut 10 khz tO 2 mhz line regulatiOn Vin = 16 tO 40 VDC lOaD regulatiOn BALAnCED, nO lOaD tO Full CrOSS regulatiOn eFFeCt On -VOut 1 input VOltage 40 VDC 25°C mV mV % VDC V See nOte 5 See nOte 6 nO lOaD tO Full COntinuOuS TRAnSIEnT 50 ms1 25°C, nO lOaD nO lOaD inhiBiteD input Current mA mA p-p % W ms mV pk µs mV pk µs ms mV pk µF input ripple Current 7 eFFiCienCy lOaD Fault 8 ±VOut Step lOaD reSpOnSe 10 ±VOut BalanCeD lOaD Step line reSpOnSe 1,10 ±VOut, 16 - 40 -16 VDC Start-up ±VOut 10 khz - 10 mhz 25°C ShOrt CirCuit pOwer DiSSipatiOn reCOVery 1, 9 50% - 100% - 50% lOaD tranSient reCOVery 9 tranSient reCOVery 9 Delay 7 OVerShOOt Full lOaD OVerShOOt nO lOaD 1 25°C, nO eFFeCt On DC perFOrmanCe 1 — — — — — — — — — — CapaCitiVe lOaD 1 notes: See page 9 www.interpoint.com Page 8 of 21 Rev F - 20090324 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMTR Single, Dual and Triple DC/DC Converters 28 VOlT INPuT – 30 WaTT – PENDINg REVISION F RElEaSE notes SMTR Dual Output Models (All temperatures in tables and notes refer to case temperature, TC.) 1. guaranteed by design, not tested. 2. The specified max current is available from either output. 3. 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. 4. Operation is limited below 16 V (see Figure 22). 5. Effect on the negative output under the following conditions: +Pout 20% to 80%; –Pout 80% to 20% 6. Effect on the negative output under the following conditions: +Pout 50%; –Pout 10% to 50% 7. Tested with 6800 pF ceramic bypass capacitors connected externally from input common to case. 8. Indefinite short circuit protection not guaranteed above 125°C case temperature. 9. Recovery time is measured from application of the transient to point at which Vout is within 1% of final value. 10. Transition time ≥ 10 µs. www.interpoint.com Page 9 of 21 Rev F - 20090324 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMTR Single, Dual and Triple DC/DC Converters 28 VOlT INPuT – 30 WaTT – PENDINg REVISION F RElEaSE Electrical Characteristics: -55 to +125° C TC, 28 VDC Vin, 100% load, no irraditaion, unless otherwise specified. TRIPLE OUTPUT MODEL – SMRT28512T parameter Output VOltage 2, 3 5 (MAIn) MIn 4.95 4.85 0.30 — TYP 5.00 5.00 — — — — — — 28 — — — — 73 — — — — — — — — — MAX 5.05 5.15 4.00 20 30 180 20 50 40 50 110 6 80 — — 14 6 ±400 0.30 ±800 5 6 500 MIn +12 (+AUX) TYP 12.00 12.00 — — — — — — — — — — — — — — — — — — — — — MAX 12.18 12.42 ±0.625 7.5 — ±120 ±75 ±75 — — — — — — — — — ±1500 6 ±800 5 6 2000 MIn 11.82 11.58 — — — — — — — — — — — — — — — — — — — — — 11.82 11.58 — — — — — — — — — — — — — — — — — — — — — -12 (-AUX) TYP 12.00 12.00 — — — — — — — — — — — — — — — — — — — — — MAX 12.18 12.42 ±0.625 7.5 — ±120 ±75 ±75 — — — — — — — — — ±1500 6 ±800 5 6 2000 COnDitiOnS 25°C, +VOut +VOut unitS VDC A Output Current Output pOwer 2, 3 tOtal all OutputS Output ripple line regulatiOn 4 lOaD regulatiOn input VOltage input Current input ripple Current 3 eFFiCienCy lOaD Fault 5 all OutputS ShOrteD Step lOaD reSpOnSe 6, 7 Step line reSpOnSe 1 3, 4 — — — — 16 — — — — 71 69 — — — — — — — — 10 khz - 2 mhz Vin 16 tO mV p-p mV mV VDC V mA mA p-p % W ms mV pk ms mV pk ms ms mV pk 40 VDC COntinuOuS tranSient 50 ms 1 nO lOaD inhiBiteD 10 kHz - 10 MHz 25°C pOwer DiSSipatiOn reCOVery eaCh Output1 tranSient reCOVery Vin 16 tO 40 VDC tranSient reCOVery Delay OVerShOOt 1 Start-up notes: (All temperatures in tables and notes refer to case temperature, TC.) 1. guaranteed by design, not tested. 2. The sum of the two Aux outputs is not to exceed 10 watts. The maximum load per Aux output is 7.5 watts. 3. To maintain regulation when operating the ±Aux at full load, a minimum load of 300 mA is required on the main output. For Aux loads less than full load, a lower load (