Technical Reference Note ASA (6W) Family ASA (6W) Isolated DC/DC Converter Module Industry Standard Size, 1.25"x0.8"x0.4" 9-36V/18-75V Inputs, 3.3V/5V/5V/12V/12V/15V/15V Outputs The ASA (6W) Isolated DC/DC Converter is Astec's 4:1 wide input voltage family for low power applications. With efficiency up to 81% typical for 5V module, this product is allowed to work at operating temperature range from -40C to 71C and a wide input voltage range of 4:1. Single-output models and dual-output models are available for a wide range of applications in telecommunication, transportation equipment, etc.. Housed in small package, 1.25"x0.8"x0.4", with industry standard pinout, 24-pin DIP, ASA family eases the PCB designs and mechanical designs of customers' end products. Electrical Parameters Input Input range Efficiency 9-36 VDC; 18-75 VDC 81%@ 5V (Typical) Output Regulation (Line, Load, Temp) Ripple and noise Industry Standard Size 1.25" x0.80" x 0.40" Special Features * * * * * * * * * Wide 41 input range High efficiency, 81%@5V -40C to 90C case surface operating temperature Input / Output isolation 1.5KVdc Low output ripple and noise Shielded metal case with size (1.25"x0.8"x0.4") Industrial standard pinout (24-pin DIP) Lead-free soldering pins Fixed switching frequency (200KHz) <2% 2% typical (100mV p-p max@ 5V) Transient Response 6% max deviation with 50% load to full load 250uS (max) recovery Short Circuit Protection Indefinite Safety Designed to meet EN60950 (up to SELV limit) Environmental Specifications * * * * Operating temperature: -40C to +71C Storage temperature: -55C to +105C MTBF: >1 million hours ROHS Compliant DATE: April 2008 MODEL : ASA Series SHEET 1 / 19 Technical Reference Note ASA (6W) Family ASA (6W) SERIES THIS SPECIFICATION COVERS THE REQUIREMENTS FOR AN INDUSTRY STANDARD PACKAGE OF 1.25"x0.8"x0.4", 4:1 INPUT RANGE, 4-6W, SINGLE OUTPUT AND DUAL OUTPUT ISOLATED DC/DC CONVERTER PART NUMBERS MODEL NAME / SIS CODE ASA01F18-L ASA01A18-L ASA00AA18-L ASA00B18-L ASA00BB18-L ASA00C18-L ASA00CC18-L ASA01F36-L ASA01A36-L ASA01AA36-L ASA00B36-L ASA00BB36-L ASA00C36-L ASA00CC36-L DATE : April 2008 Nominal Vin / Range of Vin 24V / 9-36V 24V / 9-36V 24V / 9-36V 24V / 9-36V 24V / 9-36V 24V / 9-36V 24V / 9-36V 48V / 18-75V 48V / 18-75V 48V / 18-75V 48V / 18-75V 48V / 18-75V 48V / 18-75V 48V / 18-75V MODEL : ASA Series Vout / Iout 3.3V / 1.2A 5V / 1A 5V / 0.5A 12V / 0.5A 12V / 0.25A 15V / 0.4A 15V / 0.2A 3.3V / 1.2A 5V / 1A 5V / 0.5A 12V / 0.5A 12V / 0.25A 15V / 0.4A 15V / 0.2A SHEET 2 / 19 Technical Reference Note ASA (6W) Family ELECTRICAL SPECIFICATIONS Unless otherwise indicated, specifications apply over all operating input voltage and temperature conditions. Standard test condition on a single unit. Tambient : +Vin : -Vin : +Vout : -Vout : 25C 24V 2% (ASAxxxx18-L) 48V 2% (ASAxxxx36-L) return pin for +Vin connect to load connect to load (return) ABSOLUTE MAXIMUM RATINGS Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of the IPS. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability. Parameter a) Input Voltage: Continuous: Transient (100ms) Continuous: Transient (100ms) Device Symbol Min Typ Max Unit ASAxxxx18-L ASAxxxx18-L VI VI, trans 0 0 - 36 50 Vdc Vdc ASAxxxx36-L ASAxxxx36-L VI VI, trans 0 0 - 75 100 Vdc Vdc All -40 -40 -55 - 71 90 105 C C C b) Operating Temperature Ambient Case Surface c) Storage Temperature All Ta Tc TSTG d) Operating Humidity All - - - 95 % e) I/O Isolation (Conditions : 0.5mA for 60 sec) Input-Output All - - - 1500 Vdc 3.3V 5V / 5V 12V / 12V 15V / 15V Po,max Po,max Po,max Po,max - - 4 5 6 6 W W W W f) Output Power DATE : April 2008 MODEL : ASA Series SHEET 3 / 19 Technical Reference Note ASA (6W) Family INPUT SPECIFICATIONS Parameter Device Symbol Min Typ Max Unit ASAxxxx18-L ASAxxxx36-L VI VI 9 18 24 48 36 75 VDC VDC b) Maximum Input Current ASAxxxx18-L (VI = 0 to VI ,max : Io = Io,max) 3.3V 5V / 5V 12V / 12V 15V / 15V II,max II,max II,max II,max - - 700 800 950 950 mA mA mA mA ASAxxxx36-L (VI = 0 to VI ,max : Io = Io,max) 3.3V 5V / 5V 12V / 12V 15V / 15V II,max II,max II,max II,max - - 350 400 500 500 mA mA mA mA All - - - 0.4 W a) Operating Input Voltage c) No Load Input Power (VI = VI,nom ) CAUTION: This power module is not internally fused. An input fuse must always be used. DATE : April 2008 MODEL : ASA Series SHEET 4 / 19 Technical Reference Note ASA (6W) Family OUTPUT SPECIFICATIONS Parameter a) Output Voltage Setpoint (VI = VI,min to VI,max: Io = Io,,max ; TA = 25 C) Device 3.3V 5V 12V 15V 5V 12V 15V Symbol Vo,set Vo,set Vo,set Vo,set Vo,set Vo,set Vo,set Min 3.23 4.90 11.76 14.70 4.90 11.76 14.70 Typ 3.30 5.00 12.00 15.00 5.00 12.00 15.00 Max 3.37 5.10 12.24 15.30 5.10 12.24 15.30 Unit Vdc Vdc Vdc Vdc Vdc Vdc Vdc All - - - 0.5 % Load (VI = VI,,nom; Io = Io,min to Io,max) 3.3V Others - - - 1 0.5 % % Cross (VI = VI,,nom; Io = +Io,max, -Io,min or +Io,min, -Io,max to +Io,max, -Io,max ) 5V/12V/ 15V - - - 3 % All - - - 1.0 %Vo 3.3V 5V 12V 15V - - - 100 100 120 150 mVp-p mVp-p mVp-p mVp-p 3.3V 5V 12V 15V 5V 12V 15V Io Io Io Io Io Io Io 120 100 50 40 50 25 20 - 1200 1000 500 400 500 250 200 mA mA mA mA mA mA mA 3.3V 5V 12V 15V 5V 12V 15V - - 78 81 82 83 81 82 83 - % % % % % % % All - 180 200 220 KHz b) Output Regulation: Line (VI = VI,max toVI,min; Io = Io,,max) Temperature (Tc = -40 C to +90C) c) Output Ripple and Noise (Across 1F @50V, X7R ceramic capacitor & 10F @25V tantalum capacitor) See Figure 1. Peak-to-Peak (5 Hz to 20 MHz) d) Rated Output Current Single Output Dual Output e) Efficiency (VI = VI,nom ; Io,max ; TA = 25C) f) Switching Frequency DATE : April 2008 MODEL : ASA Series SHEET 5 / 19 Technical Reference Note ASA (6W) Family OUTPUT SPECIFICATIONS (Cont.) Parameter Device (Series) Symbol Min Typ Max Unit 3.3V/5V/ 5V 12V/12V/ 15V/15V All - - - 6 %Vo - - - 2 %Vo - - - 250 sec All - - 0 4 %Vo g) Dynamic Response : (Io/t = 0.08A/s ; VI = VI,,nom; TA = 25C) Load Change from Io = 50% to 100% of Io,max : Peak Deviation Settling Time (to Vo,nom) i) Output Voltage Overshoot (Io = Io,max ; TA = 25C) FEATURE SPECIFICATIONS Device (Series) Symbol Min Typ Max Unit Turn-on Point (Io = Io,max) ASAxxxx18-L ASAxxxx36-L - - 8.4 9.4 8.9 V V Turn-off Point (Io = Io,max) ASAxxxx18-L ASAxxxx36-L - - 5 8 All All All - 10 1M 1000 - - PF M Hours All - - - 20 g Parameter Undervoltage Lockout Isolation Capacitance Isolation Resistance Calculated MTBF (Io = Io,max ; TA = 25C) Weight DATE : April 2008 MODEL : ASA Series 16 V V SHEET 6 / 19 Technical Reference Note ASA (6W) Family MAXIMUM CAPACITIVE LOAD Astec Model Number ASA01F18 ASA01F36 ASA01A18 ASA01A36 ASA00B18 ASA00B36 ASA00C18 ASA00C36 ASA00AA18 ASA00AA36 ASA00BB18 ASA00BB36 ASA00CC18 ASA00CC36 DATE : April 2008 Maximum Capacitive Load @ Full Load Vin = Low Line Vin = Nominal Line 200uF 320uF 590uF 540uF 200uF 310uF 300uF 320uF 200uF 240uF 110uF 120uF 80uF 120uF 75uF 75uF 200uF 300uF 400uF 440uF 80uF 120uF 50uF 70uF 50uF 45uF 80uF 90uF MODEL : ASA Series Full Load 1.2A 1.2A 1A 1A 0.5A 0.5A 0.4A 0.4A 0.5A 0.5A 0.25A 0.25A 0.2 0.2 SHEET 7 / 19 Technical Reference Note ASA (6W) Family Basic Operation and Features The ASA converters were designed specifically to address applications where high power density is required. These modules provide 1500V isolation and operate from the input ranges of 9V-36V and 18V-75V with standard features such as short circuit protection. Output Current Protection To provide protection in a short circuit condition, the converter is equipped with current limiting circuitry and can endure the fault condition for an unlimited duration. At the point of current-limit inception, the converter goes into "Hiccup Mode", causing the output current to be limited both in peak and duration. The converter operates normally once the output current is brought back into its specified range. DATE : April 2008 MODEL : ASA Series SHEET 8 / 19 Technical Reference Note ASA (6W) Family TEST SETUP COPPER STRIP Vo(+ 0.1 uF 10 uF SCOPE RESISTIVE LOAD Vo(- Note: Use a 0.1F @50V X7R ceramic capacitor and a 10F @ 25V tantalum capacitor. Scope measurement should be made using a BNC socket. Position the load between 51 mm and 76 mm (2 in. and 3 in.) from module. Figure 1 : Peak-to-Peak Output Noise Measurement Test Setup. DATE : April 2008 MODEL : ASA Series SHEET 9 / 19 Technical Reference Note ASA (6W) Family 9 V in 2 4 V in Ou tp u t Lo ad (mA ) 900.0 3 6 V in 100.0 1200.0 960.0 1080.0 840.0 720.0 600.0 480.0 360.0 240.0 36V in 700.0 24V in 500.0 9V in 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 300.0 Efficiency % 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 120.0 Efficiency % Performance Curves - Efficiency Curve O u tp u t L o ad (m A ) Output Load (mA) Efficiency vs. Load @ +25 Ambient, ASA00B18-L MODEL : ASA Series 24V in 400.0 360.0 320.0 280.0 240.0 200.0 160.0 36V in 80.0 500.0 450.0 400.0 350.0 300.0 250.0 200.0 150.0 100.0 36Vin 9V in 120.0 24Vin 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 40.0 9Vin DATE : April 2008 Efficiency vs. Load @ +25 Ambient, ASA01A18-L Efficiency % 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 50.0 Efficiency % Efficiency vs. Load @ +25 Ambient, ASA01F18-L Ou tpu t Lo ad (mA ) Efficiency vs. Load @ +25 Ambient, ASA00C18-L SHEET 10 / 19 1000.0 900.0 800.0 700.0 Efficiency vs. Load @ +25 Ambient, ASA01A36-L Efficiency vs. Load @ +25 Ambient, ASA00B36-L MODEL : ASA Series 18Vin 48Vin 400.0 360.0 320.0 280.0 240.0 200.0 160.0 120.0 75Vin 80.0 O u t p u t Lo a d (mA ) 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 40.0 Efficiency % 500.0 450.0 400.0 350.0 300.0 250.0 200.0 150.0 100.0 1 8 V in 4 8 V in 7 5 V in 50.0 Efficiency % 600.0 Ou tp u t Lo ad (mA ) Efficiency vs. Load @ +25 Ambient, ASA01F36-L DATE : April 2008 75V in 500.0 O utput Load (m A ) 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 48V in 100.0 1200.0 1080.0 960.0 840.0 720.0 600.0 480.0 360.0 240.0 75V in 18V in 400.0 48V in 300.0 18V in 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 200.0 Efficiency % 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 120.0 Efficiency % Technical Reference Note ASA (6W) Family Output Load (mA) Efficiency vs. Load @ +25 Ambient, ASA00C36-L SHEET 11 / 19 250.0 225.0 200.0 175.0 150.0 Efficiency vs. Load @ +25 Ambient, ASA00BB18-L Efficiency vs. Load @ +25 Ambient, ASA00CC18-L MODEL : ASA Series 18Vin 48Vin 500.0 450.0 400.0 350.0 300.0 250.0 200.0 150.0 75Vin 100.0 Ou tp u t Lo ad (mA ) 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 50.0 Efficiency % 200.0 180.0 160.0 140.0 120.0 100.0 80.0 60.0 40.0 9V in 24V in 36V in 20.0 Efficiency % Efficiency vs. Load @ +25 Ambient, ASA00AA18-L DATE : April 2008 125.0 Outp ut Load (mA ) O utput Load (m A ) 100 95 90 85 80 75 70 65 60 55 50 45 100.0 500.0 450.0 400.0 350.0 300.0 250.0 200.0 150.0 100.0 36V in 9vin 24vin 36vin 75.0 24V in 50.0 9V in 100 95 90 85 80 75 70 65 60 55 50 45 25.0 Efficiency % 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 50.0 Efficiency % Technical Reference Note ASA (6W) Family Output Load (mA) Efficiency vs. Load @ +25 Ambient, ASA00AA36-L SHEET 12 / 19 Efficiency vs. Load @ +25 Ambient, ASA00BB36-L DATE : April 2008 MODEL : ASA Series 48Vin 200.0 180.0 160.0 140.0 120.0 75Vin 100.0 Output Load (mA) 18Vin 80.0 250.0 225.0 200.0 175.0 150.0 125.0 100.0 75.0 50.0 75Vin 60.0 48Vin 40.0 18Vin 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 20.0 Efficiency % 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25.0 Efficiency % Technical Reference Note ASA (6W) Family Output Load (mA) Efficiency vs. Load @ +25 Ambient, ASA00CC36-L SHEET 13 / 19 Technical Reference Note ASA (6W) Family Performance Curves Start-Up Time (ASA01A36-L) 100 90 80 70 60 50 40 30 20 10 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 Output Power ( % ) Transient Response - 50% to 100% load (ASA01A36-L) Case Surface Temperature ( ) Ripple & Noise (ASA01A36-L) DATE : April 2008 MODEL : ASA Series Power Derating SHEET 14 / 19 Technical Reference Note ASA (6W) Family Conducted EMI Performance DATE : April 2008 MODEL : ASA Series SHEET 15 / 19 Technical Reference Note ASA (6W) Family DATE : April 2008 MODEL : ASA Series SHEET 16 / 19 Technical Reference Note ASA (6W) Family Mechanical Dimensions and Module Pin Assignment Top View 31.75 (1.25) Dot -Vin -Vin Pb 20.32 (0.80) 22.86 (0.90) IN=48Vdc Nom. OUT=5Vdc Date Code RoHS NC NC 15.24 (0.60) 0.50 +Vin +Vin -Vout +Vout (0.02) Dot Label 2.54 (0.10) 10.16 (0.40) 3.05 (0.12) Outline Drawing for ASA Single Series Top View 31.75 (1.25) Dot -Vin -Vin Pb 20.32 (0.80) IN=9~36Vdc RoHS 22.86 (0.90) OUT= 5Vdc Date Code COM -Vout 15.24 (0.60) 0.50 +Vin +Vin COM +Vout (0.02) Dot Label 2.54 (0.10) 10.16 (0.40) 3.05 (0.12) Outline Drawing for ASA Dual Series DATE : April 2008 MODEL : ASA Series SHEET 17 / 19 Technical Reference Note ASA (6W) Family Package Information DATE : April 2008 MODEL : ASA Series SHEET 18 / 19 Technical Reference Note ASA (6W) Family Recommended Lead-Free Wave Soldering Temperature Profile C 300 255C-265C 3.0~5.0sec 270 240 210 180 150 100-110C 120 90C 90 5CMAX 60 30-50sec 30 60-90sec preheat area 0 20 DATE : April 2008 40 60 80 100 MODEL : ASA Series 120 140 160 180 200 sec SHEET 19 / 19