Technical Reference Note Ultra Low Profile AUG 20W Series AUG 20W Ultra Low Profile DC – DC Module (Pb-free reflow compatible and ROHS Compliant) The AUG 20W series is Astec’s new Ultra Low Profile, 48Vin, SMT isolated single output modules. With the Ultra Low Profile SMT design (only 4.8mm height), the module can be flexible mounted on the top side or the bottom side of motherboard. The AUG 20W series also comes with enhanced features such as Remote on/off (RC), parallel Application (PO), Power Good (ALM), and the protection of OVP, OCP and UVLO. Electrical Parameters Input Input range Efficiency 36 – 60Vdc 60 – 75Vdc (forced air 1.5m/s) 88% @5Vo Control Enable ON: RC pin connected to –Vin or Open OFF: RC pin connected to +Vin Output Line / Load Regulation Ripple and Noise OVP OCP Special Features • • • • • • • • • • Ultra Low Profile – 4.8mm height Efficiency – 88% @ 5V -40 °C to +75°C Ambient Operating temperature (forced air 1.2m/s)) Open Frame SMT Low output ripple and noise Regulation to zero load CISPR22, Class A for Conduct and Radiated EMI Parallel Application UL/cUL 60950, CE Mark Pb-free reflow compatible and ROHS Compliant MODEL : AUG 20W SERIES April 05 REVISION 02 LVP Isolation +5%, -3% 50mVp-p 120% of Vonom (Latch-up) 8.2A for 1.5V, 1.8V 7.2A for 2.5V 6.2A for 3.3V 4.2A for 5.0V 95% of Vonom (Latch-up) 1500VDC (1 minute) SHEET 1 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series AUG 20W Ultra Low Profile Series THIS SPECIFICATION COVERS THE REQUIREMENTS MODEL NAME AUG08M48 AUG08Y48 AUG07G48 AUG06F48 AUG04A48 MODEL : AUG 20W SERIES April 05 REVISION 02 SIS CODE AUG08M48 AUG08Y48 AUG07G48 AUG06F48 AUG04A48 Vout,Iout 1.5V @ 8A 1.8V @ 8A 2.5V @ 7A 3.3V @ 6A 5V @ 4A SHEET 2 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series Electrical Specifications STANDARD TEST CONDITION on a single unit, unless otherwise specified. T A: 25°C (Ambient Air) +Vin (P16-17): 36 – 60Vdc 60 – 75Vdc (with derating) -Vin (P18-19): Return for +Vin RC (P13): Open +Vo (P2-4): Connect to load -Vo (P5-6): Return for +Vo PO (P14): Open ALM(P12): Open ABSOLUTE MAXIMUM RATINGS Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Functional operation of the device is not implied at these or in any other conditions in excess of those given in the operational sections of the specs. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability. Parameter Input Voltage Continuous Continuous (forced air 1.5m/s) Transient (200µs, 42V/10/µs rate) Device Symbol Min Typ Max Unit VIN VIN 36 60 - - 60 75 90 Vdc Vdc Vdc 75 ºC VIN,trans Operating Temperature (forced air 1.2m/S) - -40 Storage Temperature All TSTG -40 - 90 ºC Operating Humidity All - 10 - 95 % Min 36 60 32 Typ 48 Max 60 75 36 Unit Vdc Vdc Vdc 34 Vdc 1.0 A INPUT SPECIFICATIONS Parameter Operating Input Voltage Input Voltage (with derating) Turn-on Voltage Device Symbol VIN VIN Turn-off Voltage Maximum Input Current2 (VIN = 0 to VIN,max; IO = IO,max) 30 All IIN,max - - Note: 1. This power module is not internally fused. The use of an input line fuse (GMA-10A Bussman fuse or equivalent) is recommended. 2. The value is static only and rated for UL/cUL safety. In-rush current to charge internal capacitors is not specified. MODEL : AUG 20W SERIES April 05 REVISION 02 SHEET 3 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series OUTPUT SPECIFICATIONS Parameter Output Voltage Setpoint (VIN=VIN,min to VIN,max at IO=IO,max) Device AUG08M48 AUG08Y48 AUG07G48 AUG06F48 AUG04A48 Symbol VO,SET VO,SET VO,SET VO,SET VO,SET Min Typ 1.5 1.8 2.5 3.3 5.0 Max Unit Vdc Vdc Vdc Vdc Vdc Output Regulation: Line: VIN=VIN,min to VIN,max Load: IO=IO,min to IO,max All All - -3 -3 - +5 +5 % % Output Ripple and Noise Peak to Peak: 5Hz to 20MHz All - - - 100 mVPK-PK Output Current Range 1.5V 1.8V 2.5V 3.3V 5.0V IO IO IO IO IO 0 0 0 0 0 - 8 8 7 6 4 A A A A A Output Current Limit Inception3 1.5V 1.8V 2.5V 3.3V 5.0V IO IO IO IO IO - 8.2 8.2 7.2 6.2 4.2 - A A A A A Over Voltage Protection All 120 %Vo Low Voltage Protection All 95 %Vo Efficiency Ta = 25ºC. Vin =48V, Io=Iomax 1.5V 1.8V 2.5V 3.3V 5.0V η η η η η 78 79 81 83 83 83 84 86 88 88 - % % % % % Note: 3. This feature is only for module protection and is not intended for customer application. The value is specified at 25C ambient air temperature. MODEL : AUG 20W SERIES April 05 REVISION 02 SHEET 4 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series OUTPUT SPECIFICATIONS (Continued) Parameter Switching Frequency Device 1.5V 1.8V 2.5V 3.3V 5.0V Symbol - Min - Typ 570 510 510 570 640 Max - Unit KHz KHz KHz KHz KHz Dynamic Response: Slew Rate All ∆IO/∆t - - A/µs - 0.3 x Io / 100uS - Load Change: 50% - 100% IO,max All - 10 %VO Load Change: 100% to 50% IO,max All - - - 10 %VO Turn-On time (Input to Output)5 IO = Iomax; VIN = VIN,nom to VO,nom All - 15 - 250 ms Note: 5. Input to Output Turn-On time is defined as the difference between t1 and t2: where t1 is the time when the input voltage reaches the minimum VIN (VIN = VIN,MIN) and t2 is the time when the output voltage reaches it's specified range (VO = VO,SET-Min). ISOLATION SPECIFICATION Input to Output Isolation: 1500Vdc (1 minute) SAFETY APPROVAL The AUG (20W) is certified under the following agencies: • UL/cUL 60950, and CE Mark. The module shall not be considered approved and carry safety agency logos until this has been authorized by Safety and QA / QC management. MODEL : AUG 20W SERIES April 05 REVISION 02 SHEET 5 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series Basic Operation and Features Over Current Limit Inception (OCP) The Isolated DC-DC converter limits output current when the current is over the maximum output current due to abnormality such as overload or short circuit. When over current condition continues and output voltage decreases to the point of low voltage protection, the DC-DC converter will be in latch up mode. To restore the output, remove the abnormality and re-set the input voltage under 5V for 1 second minimum. Over Voltage Protection (OVP) The Isolated DC-DC converter stops the operation when the output voltage is over the specified Over Voltage Protection point, the converter will be in latch up mode after 0.5ms*. To restore the output, re-set the input voltage under 5V for 1 second minimum. Notes*: Output voltage might exceed the point at which OVP starts to function under the specific condition of transient input voltage or output current change. Therefore, OVP is set to wait for the mask time 0.5ms. Low Voltage Protection (LVP) If output voltage is under the specified Low Voltage Protection point, the converter will halt the operation. After typical 500ms mask period, the converter will be in latch up mode. To restore the output, re-set the input voltage under 5V for 1 second minimum. Remote On/Off Control (RC) If RC pin is open or connected to –Vin, the converter is turned on. If RC is connected to +Vin, the converter is turned off. Alarm Output (ALM) The Alarm output will be down to the –Vin level (Open Drain Output) at the condition of Over Voltage Protection or Low Voltage Protection. The maximum sink current in ALM pin is 10mA. When operating in parallel application, all operating units can be simultaneously halt by connecting all the ALM pins together, in the condition of Over Voltage Protection or Low Voltage Protection caused by any single converter. Maximum number for parallel operation is 10 units Synchronous Turn On/Off Connect the PO (parallel Operation) pins of all operating units together will synchronize the turn on / off time in parallel application. MODULE PIN ASSIGNMENT PIN # P1, 10, 11, 20 P2, 3, 4 P5, 6 P12 P13 P14 P15 P16, 17 P18, 19 MODEL : AUG 20W SERIES April 05 REVISION 02 DESIGNATION NC +Vo -Vo ALM RC PO NC +Vin -Vin Mechanical supplemental contact pins + Output - Output Alarm Output Remote On/Off Parallel Operation + Input - Input SHEET 6 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series Performance Curves Efficiency at 25C 90 70 60 Vin=36V 50 Vin=48V 40 Vin=60V 30 20 Vin=75V Efficiency (%) Efficiency (%) 80 10 0 0 2 4 Iout (A) 6 8 Vin=36V Vin=48V Vin=60V Vin=75V 0 Efficiency vs. Load Current Curves for 1.5Vo Efficiency at 25C 100 90 80 70 60 50 40 30 20 10 0 2 4 Iout (A) 6 8 Efficiency vs. Load Current Curves for 1.8Vo Efficiency at 25C 100 80 Vin=36V Vin=48V Vin=60V Vin=75V Efficiency (%) Efficiency (%) Efficiency at 25C 100 90 80 70 60 50 40 30 20 10 0 Vin=36V 60 Vin=48V Vin=60V 40 Vin=75V 20 0 0 2 Iout (A) 4 6 0 Efficiency vs. Load Current Curves for 2.5Vo 2 Iout (A) 4 6 Efficiency vs. Load Current Curves for 3.3Vo Efficiency at 25C 100 Efficiency (%) 90 80 70 Vin=36V 60 Vin=48V 50 40 Vin=60V Vin=75V 30 20 10 0 0 1 2 Iout (A) 3 4 Efficiency vs. Load Current Curves for 5.0Vo MODEL : AUG 20W SERIES April 05 REVISION 02 SHEET 7 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series AUG 20W Power derating at 60C 100 Output (%) 80 60 65% at 75C 40 Air V = 0m/s Air V=1.2m/s 20 0 -40 -20 0 20 40 60 Ambient Temp (C) Derating Curve for the AUG 20W Series MODEL : AUG 20W SERIES April 05 REVISION 02 SHEET 8 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series Typical Application Circuit A) Single Operation +Vin -Vin -PO RC GND -48V Fuse SW +Vout -Vout Load ALM SW Open : Enable DC-DC converter Figure 1 B) Parallel Operation (A single power supply connects to multiple DC-DC converters to apply for higher output current more than rated one from a DC-DC converter) GND -48V Fuse +Vin -Vin -PO RC SW +Vout -Vout ALM Load +Vin -Vin -PO RC +Vout -Vout ALM SW Close : Halt all DC-DC converter with RC connected together Maximum units in parallel: 10pcs Figure 2 i) All PO pins should be connected together ii) All DC-DC converters with ALM pins connected will stop the operation when one single converter is halted in mode protected by LVP or OVP. iii) LED is optionally connected to ALM pin for the notice of DC-DC converter stoppage. MODEL : AUG 20W SERIES April 05 REVISION 02 SHEET 9 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series C) Multiple Operation: A single power supply connects to multiple DC-DC converters to individually distribute output current to multiple independent loads. GND -48V Fuse +Vin -Vin PO RC SW +Vout -Vout Load ALM +Vin -Vin PO RC +Vout -Vout Load ALM SW Close : Halt all DC-DC converter with RC connected together Figure 3 i) All DC-DC converters with ALM pins connected will stop the operation when one single converter is halted in mode protected by LVP or OVP. ii) LED is optionally connected to ALM pin for the notice of DC-DC converter stoppage. MODEL : AUG 20W SERIES April 05 REVISION 02 SHEET 10 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series D) complex parallel and multiple (Sequence start-up): Two converters supplying the same output voltage for a single load and another converter supplying the different output voltage for another load. Converter No.1 GND -48V Fuse SW2 SW1 +Vin -Vin PO RC ALM +Vout -Vout Load Converter No.2 +Vin -Vin PO RC ALM +Vout -Vout Converter No.3 +Vin -Vin PO RC ALM +Vout -Vout Load SW1 Close : Halt DC-DC converter No.1 and 2 SW2 Close : Halt DC-DC converter No.3 Figure 4 i) PO pins of the converters supplying the same output voltage are connected to the others and another PO pin of the different output voltage converter is not connected. ii) All three DC-DC converters, which are connected to ALM pins, stop their operation when a single one is halted in mode protected by LVP or OVP. iii) LED is optionally connected to ALM pin for the notice of DC-DC converter stoppage. MODEL : AUG 20W SERIES April 05 REVISION 02 SHEET 11 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series 4.17+/-0.5 Mechanical Specifications P=2.54+/-0.2 Tolerance is not accumulated. US Marking of No.1 pin 20 2 19 18 P P 17 16 12 11 37.3+/-0.5 +0.1 0.55 -0.15 0.25+/-0.1 13 1.95+/-0.2 P P P 14 10 .Unit : mm 15 (4.17) P (4P) A BCD E 6 10.3+/-0.2 5 INPUT=36-60VDC 4 OUTPUT=H . J V K A AUG0 F G 48 3 31.2+/-0.5 P P C P 1 0to10deg 1.3+/-0.3 4.8max Enlarged pin shape 39.9+/-0.6 Coplanarity Max0.1 Pin No 1,10,11,20 2 3 4 5 6 Notes: Symbol NC +Vout +Vout +Vout -Vout -Vout Function Mechanical supplemental contact pins +Output +Output +Output -Output -Output A : Factory symbol B : The last number of production year Example: 2 stands for 2002 C : Production month (1,2,3,..…,9,O, N, D) Pin No 12 13 14 15 16 17 18 19 Symbol ALM RC PO NC +Vin +Vin -Vin -Vin Function Alarm output Remote on/off control Parallel operation +Input +Input -Input -Input F: Output current symbol G: Output voltage symbol H, J: Output voltage K: Output current Unit Weight: 8.9g MODEL : AUG 20W SERIES April 05 REVISION 02 SHEET 12 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series PACKING AND SHIPPING Trays Tray Dimensions Unit : mm General tolerance : +-1.5 A-A' cr oss sect ion A B B' A' 10. B-B' cr oss sect ion MODEL : AUG 20W SERIES April 05 REVISION 02 SHEET 13 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series Maximum pieces per a tray : 18pcs/tray Package Corrugated cardboard box contains trays with products. Tray is heaped with alternately opposite direction to prevent products from contacting against the bottoms of trays. : CE Mark Dummy tray Trays containing products Bottom sheet of corrugated card board (310) Label (68) (210) ASTEC Products Corrugated card board box Numerals in parentheses are reference only. Unit : mm Label;written by : Part Number, : Quantity, : Inspection Number. MODEL : AUG 20W SERIES April 05 REVISION 02 SHEET 14 OF 15 Technical Reference Note Ultra Low Profile AUG 20W Series Reflow Soldering Information Soldering I) Flux Solder the products with Rosin Flux (0.2wt%. chloride or less). Do not use acid or soluble flux, because they may damage metallic parts and glass parts and may cause defective or reduce quality. II) Solder SnAgCu solder compatible III) Condition of Soldering – Recommended soldering profile (J-STD-020C): Reflow Profile : Infrared or air blow Preheating : 150 – 200 deg C for 60 to 150sec Peak temperature : 240 ± 5 deg C at surface. Maximum period above 220deg.C : 20 – 60sec Ramp rate : lower than 4 deg C / sec Times : Max 2 times (see below recommendation) . Recommendation Do not give vibration to products while solder melts under reflow process. Please handle to wait for products cooled down enough. Please don’t reflow a motherboard mounted the products on the lower side such as a below figure, because the products surely fall down from the motherboard. If need, we recommend to use supplemental mechanical contact to pins at four corners of a substrate by other adhesive methods, for example, a thermal setting resin rather than soldering. Motherboard Isolated DC-DC converter Recommend Storage Condition Maximum storage period: Storage condition: 6 months 30 deg C, 60%RH Recommend baking the module at 100degC for 24 hours if storage period is longer than 6 months. MODEL : AUG 20W SERIES April 05 REVISION 02 SHEET 15 OF 15