LMO78 GAPTEC | Alldatasheet
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GAPTEC-Electronic GmbH & Co. KG sales@gaptec-electronic.com – www.gaptec-electronic.com Page 1 of 3 LMO78_0.5 – Rev. 2017-1.3 Specifications subject to change without notice. LMO78_0.5 Series Wide Input Non-Isolated & Regulated, Single Positive/Negative Output Efficiency up to 93% Operating temperature range: -40°C ~ +85°C Short circuit protection (SCP) Open frame SIP package Ultra low no-load power consumption Switching Regulator The LMO78_0.5A series is a high efficiency switching regulator and ideal substitute for the LM78xx series three-terminal linear regulators. The product is featured with high efficiency, low loss, short circuit protection and no heat sink is required. This series is widely used in industrial control, instrumentation, and electric power applications. Model selection: LMO78_yy-pp LM=Series; S=case; ##=Vout; pp=output current Example: LMO78_05-0.5 LM= Series; S= SIP Case; ##= 5Vout; pp=0.5A Common specifications Short circuit protection: Continuous, automatic recovery No-load input current: 0.2mA TYP, 1.5mA MAX Reverse Polarity Input: Forbidden Input Filter: Capacitor Filter Temperature rise at full load: 25°C MAX, 15°C TYP Cooling: Free air convection Operation temperature range: -40°C~+85°C Power derating above 71°C Storage temperature range: -55°C ~+125°C Pin welding resistance temperature: 260°C MAX, 1.5mm from case for 10 sec Operating case temperature: 100°C Storage humidity range: < 95%RH MTBF: >2,000,000 hours +25°C MIL-HDBK-217F Weight: 1g Note: 1. The max. capacitive load should be tested within the input voltage range and under full load conditions; 2. Without any special statement, all indexes are only specific to positive output application; 3. Unless otherwise specified, data in this datasheet should be tested under the conditions of Ta=25°C, humidity<75% when inputting nominal voltage and outputting rated load; 4. All index testing methods in this datasheet are based on our Company’s corporate standards; 5. The performance indexes of the product models listed in this manual are as above, but some indexes of non-standard model products will exceed the above-mentioned requirements, and please directly contact with our technician for specific information; 6. Specifications subject to change without prior notice. Output specifications Item Test conditions Min Typ Max Units Output voltage accuracy 100% load
- LMO78_03-0.5
- Others Line regulation Input Voltage Range ±0.2 ±0.4 % Load regulation 10% to 100% load ±0.4 ±0.6 % Ripple + Noise* 20MHz Bandwidth Vin=24VDC 0% -100% load 20 75 mVp- p Over heat protec- tion Internal IC junction 170 °C Switching frequency 550 850 KHz Transient response deviation Nominal input, 25% load step change 55 250 mV Transient recovery time Nominal input, 25% load step change 0.5 2 ms Temperature coefficient -40 °C to +85 °C ambient 0.03 %/°C * Test ripple and noise by “parallel cable” method. With the load lower than 10%, maximum ripple and noise will be 150mVp-p. EMC specifications EMI CE CISPR22/EN55022 CLASS B (External circuit refer to EMC recommended circuit, 2 or EMC module application circuit) EMI RE CISPR22/EN55022 CLASS B (External circuit refer to EMC recommended circuit, 2 or EMC module application circuit) EMS ESD IEC/EN61000-4-2 Contact ±4KV perf. Criteria B EMS RS IEC/EN61000-4-3 10V/m perf. Criteria A EMS EFT IEC/EN61000-4-4 ±1KV perf. Criteria B (External circuit refer to EMC recommended circuit, 1 ) EMS CS IEC/EN61000-4-6 3 Vr.m.s perf. Criteria A EMS Voltage dips, short and interruptions immunity IEC/EN61000-4-29 0%-70% perf. Criteria B
GAPTEC-Electronic GmbH & Co. KG sales@gaptec-electronic.com – www.gaptec-electronic.com Page 2 of 3 LMO78_0.5 – Rev. 2017-1.3 Specifications subject to change without notice. LMO78_0.5 Series Wide Input Non-Isolated & Regulated, Single Positive/Negative Output Part Number Input Voltage [VDC] Nominal (Range) Output Voltage [VDC] Output Current [mA] Efficiency [%, min/typ] Max. capacitive load [µF] LMO78_03-0.5 24 (4.75-36) 3.3 500 78/81 680 12 (7-31) 500 -300 680 330 12 (8-24) -12 500 -150 680 330 12 (8-21) -15 500 -150 680 330 Typical characteristics Typical application circuit LMO78 LMO78 LMO78 LMO78 Part number C1,C3 (Ceramic Capacitor) C2,C4 (Ceramic Capacitor) LMO78_03-0.5 10μF/50V 22μF/10V LMO78_05-0.5 10μF/50V 22μF/10V LMO78_12-0.5 10μF/50V 22μF/25V LMO78_15-0.5 10μF/50V 22μF/25V Note: 1. C1 and C2 are required and should be connected close to the pin terminal of the module. 2. The capacitance of C1 and C2 refer to Sheet 1, it can be increased properly if required, and tantalum or low ESR electrolytic capacitors may also suffice. 3. When the products used as the circuit like figure 3, an inductor named as LDM up to 10μH is recommended in the circuit to reduce the mutual interference. 4. Cannot be used in parallel for output and hot swap. 5. Operation under no load will not damage these devices, however they may not meet all specifications. In order to ensure the converter can work reliably with high efficiency, please parallel a resistor on the output side (The sum of the efficient power and resistor consumption power is not less than 10%).
GAPTEC-Electronic GmbH & Co. KG sales@gaptec-electronic.com – www.gaptec-electronic.com Page 3 of 3 LMO78_0.5 – Rev. 2017-1.3 Specifications subject to change without notice. LMO78_0.5 Series Wide Input Non-Isolated & Regulated, Single Positive/Negative Output Typical application circuit EMC solution-recommended circuit To reduce the output ripple furtherly, it is suggested to connect a “LC” filter at the output terminal, and recommended value of L is 10μH-47μH. Part 1 in the Fig. 5 is for EMS test, part 2 is for EMI filtering; parts 1 and 2 can be added based on actual requirement. FUSE MOV LDM1 C0 C1/C2 C5 LDM2 Selected based on the actual input current from the customer S10K35 82μH 680μF /50V Refer to typical application circuit 4.7μF /50V 12μH Mechanical dimension and footprint