A-XMS＆B-XLMS Series 1W, FIXED INPUT, ISOLATED&UNREGULATED DUAL/SINGLE OUTPUT,SUPERMINIATURE SIP PACKAGE SELECTION GUIDE Input FEATURES Output Switching Frequency (KHz,Typ) Nominal Range A0505XMS 5 4.5-5.5 ±5 ±100 ±10 70 84 A0509XMS 5 4.5-5.5 ±9 ±56 ±6 75 81 Voltage(VDC) Current Efficiency (%,Typ) Voltage (VDC) Order code Max Min A0512XMS 5 4.5-5.5 ±12 ±42 ±5 78 82 ◆ RoHS compliant A0515XMS 5 4.5-5.5 ±15 ±33 ±4 79 83 ◆ Efficiency up to 80% A1205XMS 12 10.8-13 ±5 ±100 ±10 72 180 A1209XMS 12 10.8-13 ±9 ±56 ±6 75 150 ◆ Miniature SIP Package Style A1212XMS 12 10.8-13 ±12 ±42 ±5 77 84 Wide temperature performance at full 1 A1215XMS 12 10.8-13 ±15 ±33 ±4 79 83 Watt load,-40°C to 85 °C B0505XLMS 5 4.5-5.5 5 200 20 70 82 ◆ UL 94V-0 package material B0509XLMS 5 4.5-5.5 9 111 12 75 83 No heatsink required B0512XLMS 5 4.5-5.5 12 83 9 79 83 ◆ B0515XLMS 5 4.5-5.5 15 67 7 80 80 ◆ Industry standard pinout B1205XLMS 12 10.8-13 5 200 20 72 84 ◆ Power sharing on output B1209XLMS 12 10.8-13 9 111 12 75 81 1KVDC isolation B1212XLMS 12 10.8-13 12 83 9 77 82 ◆ B1215XLMS 12 10.8-13 67 7 79 83 Continuous Short Circuit Protection 15 ◆ B2405XLMS 24 21.6-26 5 200 20 70 82 ◆ Internal SMD construction B2409XLMS 24 21.6-26 9 111 12 73 83 No external components required B2412XLMS 24 21.6-26 12 83 9 75 83 B2415XLMS 24 21.6-26 15 67 7 78 80 B2424XLMS 24 21.6-26 24 42 5 77 84 ◆ ◆ MODEL SELECTION ① ② ③ ④ ⑤ B 05 05 X LMS LMS ①Product Series ③Output Voltage ⑤Package Style ②Input Voltage ④Fixed Input ISOLATION SPECIFICATIONS Parameter Isolation test voltage Isolation resistance APPLICATIONS The A_XMS&B_XLMS Series are specially designed for applications where a group of polar power supplies are isolated from the input power supply in a distributed power supply system on a circuit board. These products apply to: 1) Where the voltage of the input power supply is fixed (voltage variation ≤ ±10%); 2) Where isolation is necessary between input and output (isolation voltage ≤1000VDC); 3) Where the regulation of the output voltage and the output ripple noise are not demanding. Such as: purely digital circuits, ordinary low frequency analog circuits, and IGBT power device driving circuits. Test at Viso=500VDC Min. Typ. Max. Units 1000 VDC 1000 MΩ OUTPUT SPECIFICATIONS Parameter Test conditions Output power Line regulation Load regulation Min. Typ. 0.1 For Vin change of 1% Max Unit 1 W 1.2 10% to 100% full load(5V output) 10 15 10% to 100% full load(9V output) 8.3 10 10% to 100% full load(12V output) 6.8 10 10% to 100% full load(15V output) 6.3 10 5 10 10% to 100% full load(24V output) Output voltage % See tolerance envelope graph Temperature drift 100% full load Output Ripple&Noise* 20MHz Bandwidth(A-XMS) 50 75 MV 20MHz Bandwidth(B-XLMS) 75 100 p-p 100% load, nominal input(5V,12V) 100 100% load, nominal input(24V) 500 Switching frequency MICRODC R ESERVES THE COPYRIGHT Test conditions Flash tested for 1 minute and 1mA max 0.03 %/°C Khz * Test ripple and noise by "parallel cable" method. See detailed operation instructions at Testing of Power Converter section, application notes. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 2 A-XMS＆B-XLMS Series Overload Protection COMMON SPECIFICATIONS Parameter Conditions Min. Typ. Storage humidity range Max. Units 95 % Operating temperature -40 85 Storage temperature -55 125 Lead temperature 1.5mm from case for 10 seconds ℃ 300 Temp.rise at full load 15 Free air convection Case material Plastic(UL94-V0) Short circuit protection* Continuous 1 3500 Weight Recommended testing and application circuit If you want to further decrease the input/output ripple, an “LC” filtering network may be connected to the input and output ends of the DC/DC converter, see (Figure 1). 25 Cooling MTBF Under normal operating conditions, the output circuit of these products has no protection against overload. The simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit. s K hours 2.1 g *Supply voltage must be discontinued at the end of short circuit duration. TYPICAL CHARACTERISTICS It should also be noted that the inductance and the frequency of the “LC” filtering network should be staggered with the DC/DC frequency to avoid mutual interference. However, the capacitance of the output filter capacitor must be proper. If the capacitance is too big, a startup problem might arise. For every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (Table 1). Temperature Derating Graph Vin (VDC) 5 12 24 -- OUTLINE DIMENSIONS & PIN CONNECTIONS EXTERNAL CAPACITOR TABLE (TABLE 1) Cin Single Cout Dual Vout Vout (μF) 47 2.2 1.0 -- (VDC) 5 9 12 15 (μF) 10 4.7 2.2 1 (VDC) ±5 ±9 ±12 ±15 Cout (μF) 4.7 2.2 1.0 0.47 It's not recommend to connect any external capacitor in the application field with less than 0.5 watt output. SIZE Graph RECOMMENDED FOOTPRINT Top view,grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage regulation, over-voltage and over-current protection is a linear voltage regulator with overheat protection that is conn ec ted to the in put or outp ut en d in ser i es (F i gu r e 2) . FOOTPRINT DETAILS Pin 1 Note: Unit:mm(inch) Pin section:0.50*0.3mm(0.020*0.012inch) Pin section tolerances:±0.10mm(±0.004inch) General tolerances: ±0.25mm(±0.010inch) 2 4 5 6 Single VIN GND 0V NC +Vo Dual VIN GND -Vo 0V +Vo When the environment temperature is higher than 71°C, the product output power should be less than 60% of the rated power. No parallel connection or plug and play. N C - Not available for electrical connection. Requirement on output load To ensure this module can operate efficiently and reliably, a minimum load is specified for this kind of DC/DC converter in addition to a maximum load(namely full load).During operation, make sure the specified range of input voltage is not exceeded,the minimum output load is not less than 10% of the full load, and that this product should never be operated under no load! RoHS COMPLIANT INFORMATION Microdc Professional Power Module,Inc. Tel:0086-20-86000646 E-mail:[email protected] Website:http://www.microdc.cn This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are backward compatible with Sn/Pb soldering systems. REACH COMPLIANT INFORMATION This series has proven that this product does not contain harmful chemicals, it also has harmful chemical substances through the registration, inspection and approval. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 2