Technical Reference Note Ultra Low Profile AUM 10W Series AUM 10W Ultra Low Profile DC – DC Module (Pb-free reflow compatible and ROHS Compliant) The AUM 10W series is Astec’s new Ultra Low Profile, 48Vin, SMT isolated single output modules with only 7.7mm height. The 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 89% @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 Special Features OCP LVP • • • • • • • • • • Ultra Low Profile – 7.7mm height Efficiency – 88% @ 5V -40 °C to +80°C Operating ambient temperature (with 0.2m/s airflow) Open Frame SMT Low output ripple and noise Regulation to zero load CISPR22, Class A for Conduct and Radiated EMI Parallel Application UL/cUL 1950, CE Mark Pb-free reflow compatible and ROHS Compliant MODEL : AUM 10W SERIES April 05 REVISION 02 Isolation +/-5% 50mVp-p 120% of Vonom (Latch-up) 3.1A for 1.5V –3.3V 2.1A for 5V 90% of Vonom (Latch-up) 1500VDC (1 minute) SHEET 1 OF 15 Technical Reference Note Ultra Low Profile AUM 10W Series AUM 10W Ultra Low Profile Series THIS SPECIFICATION COVERS THE REQUIREMENTS MODEL NAME AUM03M48 AUM03Y48 AUM03G48 AUM03F48 AUM02A48 MODEL : AUM 10W SERIES April 05 REVISION 02 SIS CODE AUM03M48 AUM03Y48 AUM03G48 AUM03F48 AUM02A48 Vout,Iout 1.5V @ 3A 1.8V @ 3A 2.5V @ 3A 3.3V @ 3A 5V @ 2A SHEET 2 OF 15 Technical Reference Note Ultra Low Profile AUM 10W Series Electrical Specifications STANDARD TEST CONDITION on a single unit, unless otherwise specified. T A: 25°C (Ambient Air) +Vin (P1-2): 36 – 60Vdc -Vin (P3): Return for +Vin RC (P15): Open +Vo (P5-6): Connect to load -Vo (P7-8): Return for +Vo PO (P16): Open ALM(P9-10): 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 Transient (200µs, 42V/10/µs rate) Device Symbol Min Typ Max Unit VIN VIN,trans 36 - - 60 90 Vdc Vdc 80 ºC Operating Temperature (with 0.2m/s airflow) -40 Storage Temperature All TSTG -40 - 90 ºC Operating Humidity All - 10 - 95 % Min 36 Typ 48 Max 60 Unit Vdc INPUT SPECIFICATIONS Parameter Operating Input Voltage Device Symbol VIN Turn-on Voltage 33.6 36 Vdc Turn-off Voltage 31.92 33.6 Vdc 0.5 A Maximum Input Current2 (VIN = 0 to VIN,max; IO = IO,max) 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 : AUM 10W SERIES April 05 REVISION 02 SHEET 3 OF 15 Technical Reference Note Ultra Low Profile AUM 10W Series OUTPUT SPECIFICATIONS Parameter Output Voltage Setpoint (VIN=VIN,min to VIN,max at IO=IO,max) Device AUM03M48 AUM03Y48 AUM03G48 AUM03F48 AUM02A48 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 All All - -5 -5 - +5 +5 % % ≥ 2.5V - - - 50 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 - 3 3 3 3 2 A A A A A Output Current Limit Inception3 1.5V 1.8V 2.5V 3.3V 5.0V IO IO IO IO IO - 3.1 3.1 3.1 3.1 2.1 - A A A A A Output Regulation: Line: VIN=VIN,min to VIN,max Load: IO=IO,min to IO,max Output Ripple and Noise Peak to Peak: 5Hz to 20MHz Over Voltage Protection All 120 %Vo Low Voltage Protection All 90 %Vo Efficiency Ta = 25ºC. Vin =48V, Io=Iomax 1.5V 1.8V 2.5V 3.3V 5.0V η η η η η 73 75 79 81 83 78 80 84 86 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 : AUM 10W SERIES April 05 REVISION 02 SHEET 4 OF 15 Technical Reference Note Ultra Low Profile AUM 10W Series OUTPUT SPECIFICATIONS (Continued) Parameter Switching Frequency Device 1.5V 1.8V 2.5V 3.3V 5.0V Symbol - Min - Typ 770 770 770 770 770 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 AUM (10W) is certified under the following agencies: • UL/cUL 1950, 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 : AUM 10W SERIES April 05 REVISION 02 SHEET 5 OF 15 Technical Reference Note Ultra Low Profile AUM 10W 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 # P5,6 P7,8 P9,10 P15 P16 P1,2 P3 MODEL : AUM 10W SERIES April 05 REVISION 02 DESIGNATION +Vo -Vo ALM RC PO +Vin -Vin + Output - Output Alarm Output Remote On/Off Parallel Operation + Input - Input SHEET 6 OF 15 Technical Reference Note Ultra Low Profile AUM 10W Series Performance Curves Efficiency at 25C Efficiency at 25C 80 80 Vin=36V 60 Vin=48V 40 Vin=60V 20 Vin=75V Efficiency (%) 100 Efficiency (%) 100 0 Vin=36V 60 Vin=48V Vin=60V 40 Vin=75V 20 0 0 1 Iout (A) 2 3 0 Efficiency vs. Load Current Curves for 1.5Vo 3 Efficiency vs. Load Current Curves for 1.8Vo Efficiency at 25C Efficiency at 25C 100 80 Vin=36V 60 Vin=48V Vin=60V 40 Vin=75V 20 0 Efficiency (%) 100 Efficiency (%) 1 Iout (A) 2 80 Vin=36V Vin=48V 60 Vin=60V 40 Vin=75V 20 0 1 Iout (A) 2 0 3 0 Efficiency vs. Load Current Curves for 2.5Vo 1 Iout (A) 2 3 Efficiency vs. Load Current Curves for 3.3Vo Efficiency at 25C Efficiency (%) 100 80 Vin=36V 60 Vin=48V Vin=60V 40 Vin=75V 20 0 0 0.5 1 1.5 Iout (A) 2 Efficiency vs. Load Current Curves for 5.0Vo MODEL : AUM 10W SERIES April 05 REVISION 02 SHEET 7 OF 15 Technical Reference Note Ultra Low Profile AUM 10W Series AUM Power derating at 60C 100 Output (%) 75 50 Air V = 0m/s Air V=0.2m/s 25 25% at 80C 0 -40 -20 0 20 40 60 80 Ambient Temp (C) Derating Curve for the AUM Series MODEL : AUM 10W SERIES April 05 REVISION 02 SHEET 8 OF 15 Technical Reference Note Ultra Low Profile AUM 10W 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 : AUM 10W SERIES April 05 REVISION 02 SHEET 9 OF 15 Technical Reference Note Ultra Low Profile AUM 10W 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 : AUM 10W SERIES April 05 REVISION 02 SHEET 10 OF 15 Technical Reference Note Ultra Low Profile AUM 10W 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 : AUM 10W SERIES April 05 REVISION 02 SHEET 11 OF 15 Technical Reference Note Ultra Low Profile AUM 10W Series Mechanical Specifications 16 2 15 2.95+-0.3 1 PO RC -Vin 23.4+-0.3 P +Vin Marking of No.1 pin P P 2.95+-0.3 <TOP VIEW> 5 AUM0 E F 48 INPUT=36-60VDC P 6 P OUTPUT=G . H V J A 10 7 (2.95) P -Vout 8 9 2 ALM 2.9+0,-0.3 7.7Max Suffix 37.7+-0.4 Notes: Symbol +Vin -Vin +Vout -Vout Function +Input -Intput +Output -Output 0 to 10 deg. 1.2+-0.2 0.5+-0.1 Coplanarity Max0.1mm Pin No 1,2 3 5,6 7,8 2.5+-0.2 35.3+-0.2 0.25+-0.1 +Vout P by 5 A B C D (2.95) P P by 2 3 Enlarged Lead Pin Pin No 9,10 15 16 Symbol ALM RC PO Function Alarm output Remote on/off control Parallel operation 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) D : Blank E: Output current symbol F: Output voltage symbol G, H: Output voltage J: Output current Unit Weight: 7.3g MODEL : AUM 10W SERIES April 05 REVISION 02 SHEET 12 OF 15 Technical Reference Note Ultra Low Profile AUM 10W Series PACKING AND SHIPPING Trays Tray Dimensions Unit : mm General tolerance : +-1.5 200 P 2 = 3 8 .3 P2 P2 B 1 6 1 .9 1 1 .0 A-A'cross section A 39.3 P1 P1 B' 261.9 300 P1 P1=50.2 49.6 A' R4 4 2 .5 5 2 9 .4 B -B 'cross section MODEL : AUM 10W SERIES April 05 REVISION 02 SHEET 13 OF 15 Technical Reference Note Ultra Low Profile AUM 10W Series Maximum pieces per a tray : 20pcs/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. 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. Label written by MODEL : AUM 10W SERIES April 05 REVISION 02 Unit : mm : Part Number, : Quantity, : Inspection Number, : CE mark SHEET 14 OF 15 Technical Reference Note Ultra Low Profile AUM 10W 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. 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 : AUM 10W SERIES April 05 REVISION 02 SHEET 15 OF 15