PRODUCT FEATURES A_(X)T-1W Series ● Small Footprint ● SMD Package ● High Efficiency up to 79% ● 1KVDC Isolation ● Temperature Range: -40°C ~ +85°C ● Industry Standard Pinout ● No Heatsink Required ● Internal SMD construction ● No External Component Required ● RoHS Compliance 1W, FIXED INPUT, ISOLATED & UNREGULATED DUAL OUTPUT DC-DC CONVERTER ULTRAMINIATURE SMD PACKAGE APPLICATIONS Patent Protection RoHS The A_(X)T-1W series are specially designed for applications where a group of polar power supplies are MODEL SELECTION isolated from the input power supply in a distributed power A0505(X)T-1W supply system on a circuit board. These products apply to: Rated Pow er Package Style Output Voltage Input Volt age Product Series 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. PRODUCT PROGRAM Input Voltage(VDC) Nominal (Range) Output Current (mA) Input Current (mA)(typ.) @Max. @No Load Load 427 44 Output Voltage (VDC) Max. Min. ±5 ±100 ±10 ±12 ±42 ±5 368 A0315(X)T-1W ±15 ±33 ±4 A0505(X)T-1W ±5 ±100 Model Number A0305(X)T-1W A0312(X)T-1W 3.3 (2.97-3.63) Reflected Ripple Current (mA,typ.) Max. Capacitive Load(µF) Efficiency (%, typ.) @Max. Load Approval 19 71 33 29 79 361 27.4 45 79 ±10 280 34 20 71 UL ±9 ±56 ±6 249 27 20 77 UL ±12 ±42 ±5 258 33 19 78 UL A0515(X)T-1W ±15 ±33 ±4 250 31 19 78 UL A1205(X)T-1W ±5 ±100 ±10 112 11 18 71 UL ±9 ±56 ±6 112 17 17 73 UL ±12 ±42 ±5 109 18 19 74 UL ±15 ±33 ±4 110 22 16 74 UL ±15 ±33 ±4 80 11 14 79 ±5 ±100 ±10 57 7 14 72 ±9 ±56 ±6 53 7 18 74 ±12 ±42 ±5 51 7 20 76 A2415(X)T-1W ±15 ±33 ±4 51 7 16 77 A2424(X)T-1W ±24 ±21 ±2 49 6 20 78 A0509(X)T-1W A0512(X)T-1W A1209(X)T-1W A1212(X)T-1W 5 (4.5-5.5) 12 (10.8-13.2) A1215(X)T-1W A1515(X)T-1W 15(13.5-16.5) A2405(X)T-1W A2409(X)T-1W A2412(X)T-1W 24 (21.6-26.4) 100 Note: 1. The A_XT-1W series have no 3,6,8,9 pin. For example A0505XT-1W. 2. A_XT-1W series: UL-609501 Pending. The copyright and authority for the interpretation of the products are reserved by MORNSUN A_(X)T-1W B/2-2012 Page 1 of 5 INTPUT SPECIFICATIONS Item Input Surge Voltage (1sec. max.) Test Conditions Min. Typ. Max. 3.3VDC Input Models -0.7 -- 5 Units 5VDC Input Models -0.7 -- 9 12VDC Input Models -0.7 -- 18 15VDC Input Models -0.7 -- 21 24VDC Input Models -0.7 -- 30 -- -- 0.4 A Reverse Polarity Input Current* VDC C Filter Input Filter Note: *If the product reverse did not seek to limit current, may result in injury or permanent damage, testing is not recommended. OUTPUT SPECIFICATIONS Item Test Conditions Output Power Min. Typ. Max. Units 0.1 -- 1 W Output Voltage Accuracy See tolerance envelope graph Output Voltage Balance Dual Output, Balanced Loads -- ±0.5 ±1.0 Line Regulation For Vin change of ±1% -- -- ±1.2 Load Regulation 10% to 100% load 5V output -- 12.8 15 9V output -- 8.3 10 12V output -- 6.8 10 15V output -- 6.3 10 24V output -- 6.0 10 % Temperature Drift 100% full load -- -- ±0.03 %/°C Ripple & Noise* 20MHz Bandwidth -- 50 75 mVp-p -- -- 1 s Short Circuit Protection** Note: Dual output models unbalanced load: ±5%. *Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section, application notes. **Supply voltage must be discontinued at the end of short circuit duration. COMMON SPECIFICATIONS Item Test Conditions Min. Typ. Max. Units Isolation Voltage Tested for 1 minute and 1mA max 1000 -- -- VDC Isolation Resistance Test at 500VDC 1000 MΩ Isolation Capacitance Switching Frequency MTBF -- -- 100 -- -- 30 -- Full load, nominal input (5V/12V) -- 100 -- Full load, nominal input (15V/24V) -- 500 -- -- -- Input/Output,100KHz/1V A2424(X)T-1W Other Models 3500 MIL-HDBK-217F@25℃ Case Material pF KHz K hours Epoxy Resin (UL94-V0) Weight -- 1.70 -- g Min. Typ. Max. Units -- -- 95 % ENVIRONMENTAL SPECIFICATIONS Item Test Conditions Storage Humidity Operating Temperature -40 -- 85 Storage Temperature -55 -- 125 Temp. rise at full load -- 25 -- -- 300 Lead Temperature Power derating (above 85℃) 1.5mm from case for 10 seconds -- Cooling °C Free air convection EMC SPECIFICATIONS EMI CE CISPR22/EN55022 EMS ESD IEC/EN61000-4-2 The copyright and authority for the interpretation of the products are reserved by MORNSUN CLASS A（External Circuit Refer to Figure1） Contact ±8KV perf. Criteria B A_(X)T-1W B/2-2012 Page 2 of 5 EMC RECOMMENDED CIRCUIT EMI Recommended External Circuit （CLASS A）： Recommended external circuit param eters: ①Vin：15V C1：2.2µF/50V 1210 ②Vin：24V C1：4.7µF/50V 1210 CY：100pF/2000V 1206 Rem arks：Product bare input of 3.3V、5V、12V can be tested by the CLASS A. (Figure 1) PRODUCT TYPICAL CURVE Temperature Derating Graph Output Power Percent(%) Tolerance Envelope Graph +10% Typic a l Lo ad L ine +2. 5% - 2.5% Output Voltage Accuracy (%) +5% Rated Output Voltage - 7.5% 50% 70% 120 100 80 60 Saf e Operating Ar ea 40 20 0 -40 100% 0 85 105120 40 Ambient Temp.(℃) Output Current Percent (%) (Nom inal Input Voltage ) Efficiency VS Input Voltage curve (Full Load) Efficiency VS Input Voltage curve (Full Load) A2405T-1W Input Voltage(V) 26.40 25.92 25.44 24.97 24.48 Output Load VS Efficiency curve (Vin=Vin-nominal) A2405T-1W 80 80 70 70 Efficiency(%) Efficiency(%) 24.02 Input Voltage(V) Output Load VS Efficiency curve (Vin=Vin-nominal) A0505T-1W 60 50 40 30 20 10 0 23.52 23.04 22.56 22.08 Efficiency(%) 80 77 74 71 68 65 62 59 56 53 50 5.503 5.402 5.302 5.200 5.104 5.007 4.902 4.805 4.705 4.607 Efficiency(%) A0505T-1W 80 77 74 71 68 65 62 59 56 53 50 60 50 40 30 20 10 10 20 30 40 50 60 70 80 90 100 0 10 20 Output Current Percent(%) 30 40 50 60 70 80 90 100 Output Current Percent(%) Recommended reflow Soldering Profile 260 o C Tem perature ( o C) 250 10 Sec Max o 220 C 200 150 100 90 S ec Max o (>220 C) 50 0 Time ( s ec.) Remark: The curve applies only to the hot air reflow soldering The copyright and authority for the interpretation of the products are reserved by MORNSUN A_(X)T-1W B/2-2012 Page 3 of 5 OUTLINE DIMENSIONS、RECOMMENDED FOOTPRINT & PACKAGING RECOMMENDED FOOTPRINT MECHANICAL DIMENSIONS A_T-1W (Side View) 6.25 [0.246] 6.50 [0.256] 0.60 [0.024] 0.25 [0.010] 15.24 [0.600] 10.16[0.400] 2.54[0.100] 10 9 8 7 1 2 3 4 9 8 7 6 1 2 3 4 5 2.54 [0.100] 2.10 [0.083] 1.00 [0.039] 2.54 [0.100] A_XT-1W 10 6 (Top View) 7.50 [0.295] 10 7 11.20 [0.441] 5 1 A 4 5 FOOTPRINT DETAILS Pin A_T-1W A_XT-1W GND GND 1 2 Vin Vin 0V 0V 4 5 -Vo -Vo +Vo +Vo 7 NC NC 10 NC No Pin 3,6,8,9 0.25 [0.010] A 5 max 1.35 [0.053] 2 8.50 [0.335] No te : Un it:m m [in c h ] Pin s ec tio n to le ra n ce s : ± 0 .1 0m m [ ± 0 .0 0 4 in c h ] Ge n e ra l to le ra n ce s :± 0 .2 5 m m[ ± 0 .0 1 0 in c h] NC:No Connection TUBE OUTLINE DIMENSIONS REEL PACKING OUTLINE DIMENSIONS Taping dimension: ∅1.50 [0.059] 1.75 [0.069] 11.50 [0.453] 2.00 [0.079] 0.50 [0.020] 15.65[0.616] 24.00 [0.945] 14.10 [0.555] 8.90 [0.350] 7.40 [0.291] 6.50 [0.256] 11.60[0.457] 4.30 [0.169] ∅1.50 [0.059] 16.00[0.630] 7.35 [0.289] 29.40 [1.157] Taping reel dimension: ∅ 100.00 [3.937] Note: Unit :mm[inch] General tolerances: ±0.50mm[±0.020inch] L=530mm[20.866inch] Devices per tube quantity : 33pcs L=220mm[8.661inch] Devices per tube quantity: 12pcs Short tube inner packaging dimensions: L*W*H=255*170*80mm; Short tube outer packaging dimensions(with six inner packaging boxes): L*W*H=375*280*270mm; Long tube inner packaging dimensions: L*W*H=580*200*100mm; Long tube outer packaging dimensions(with two inner packaging boxes)： L*W*H=600*215*220mm; Long tube outer packaging dimensions(with three inner packaging boxes)： L*W*H=600*215*325mm. ∅330.00 [12.992] 14.10 [0.555] ∅ 13.00 [0.512] ∅21.50 [0.846] Note: Unit: mm[inch] General tolerances: ±0.50mm[±0.020inch] per reel of packing quantity: 500pcs Inner packaging dimensions: L*W*H=365*350*105mm Tube quantity:2000pcs Outer packaging dimensions: L*W*H=365*350*105mm Tube quantity:4000pcs TEST CONFIGURATIONS Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with a inductor Lin and Cin to simulate source impedance. Oscilloscope Lin Cin Lin(4.7µH) Current Probe DC DC Load Cin(220µF, ESR < 1.0Ω at 100 KHz) DESIGN & APPLY CONSIDERATIONS 1) Requirement on output load To ensure this module can operate efficiently and reliably, During operation, the minimum output load could not be less than 10% of the full load. If the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load, or use our company’s products with a lower rated output power (A_(X)T-W2 series). The copyright and authority for the interpretation of the products are reserved by MORNSUN A_(X)T-1W B/2-2012 Page 4 of 5 2) Overload Protection 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. Input Fuse Selection Guide 3.3VDC Input Models 500mA slow-Blow Type 15VDC Input Models 200mA slow-Blow Type 5VDC Input Models 500mA slow-Blow Type 24VDC Input Models 100mA slow-Blow Type 12VDC Input Models 200mA slow-Blow Type 3) Recommended circuit If you want to further decrease the input/output ripple, an capacitor filtering network may be connected to the input and output ends of the DC/DC converter, see (Figure 2). It should also be noted that the capacitance of 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 recommended capacitance of its filter capacitor sees (Table 1). +Vo Vin DC DC Cin GND Cout Cout 0V -Vo (Figure 2) EXTERNAL CAPACITOR TABLE (TABLE 1) Vin Cin Vout Cout (VDC) (µF) (VDC) (µF) 5 4.7 ±5 4.7 12 2.2 ±9 2.2 24 1 ±12 2.2 --±15 1 It’s not recommended to connect any external capacitor in the application field with less than 0.5 watt output. 4) Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage regulation, over-voltage and over-current protection is a linear regulator and an capacitor filtering network with overheat protection that is connected to the input or output end in series (Figure 3), the recommended capacitance of its filter capacitor sees (Table 1), linear regulator based on the actual voltage and current to reasonable selection. Vin REG REG +Vo REG -Vo 0V DC DC GND (Figure 3) 5) No parallel connection or plug and play Note: 1. Operation under minimum load will not damage the converter; However, they may not meet all specification listed, and that will reduce the life of product. 2. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 3. In this datasheet, all the test methods of indications are based on corporate standards. 4. Only typical models listed, other models may be different, please contact our technical person for more details. 5. Our company offer custom products. 6. Specifications subject to change without notice. MORNSUN Science & Technology Co.,Ltd. Address: No. 5, Kehui St. 1, Kehui development center, Science Ave., Guangzhou Science City, Luogang district, Guangzhou,P.R.China. Tel: 86-20-28203030 Fax:86-20-38601272 Http://www.mornsun-power.com The copyright and authority for the interpretation of the products are reserved by MORNSUN A_(X)T-1W B/2-2012 Page 5 of 5