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K78X6T-1000 Datasheet(PDF) 2 Page - MORNSUN Science& Technology Ltd. |
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K78X6T-1000 Datasheet(HTML) 2 Page - MORNSUN Science& Technology Ltd. |
2 / 5 page The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. K78XXT-1000 A/0-2011 Page 2 of 5 COMMON SPECIFICATIONS TYPICAL TEMPERATURE CURVE Item Test Conditions Min. Typ. Max. Units Case Material Plastic (UL94-V0) MTBF (MIL-HDBK-217F,+25 °C) 1000 k hours Hop swap Not supported Thermal resistance 90 ℃/W Weight 2.3 g EMC SPECIFICATIONS EN55022, CLASS A(without external circuit) CE EN55022, CLASS B(refer to Figure 4) RE EN55022, CLASS A(refer to Figure 5) ESD IEC/EN61000-4-2 Air ±8KV / Contact ±6KV perf. Criteria B EFT IEC/EN61000-4-4 ±2KV perf. Criteria B Surge IEC/EN61000-4-5 ±2KV perf. Criteria B(refer to Figure 4) TYPICAL APPLICATION CIRCUIT 0 20 40 60 80 100 120 -40 0 40 85 120 Operating Temp.() °C 71 Safe Operating Area Temperature Derating Graph (Figure2) RECOMMENDED REFLOW SOLDERING PROFILE K7805T-1000 1 7,9 5 Vin G ND Vout C2 C1 6 10 ON/OFF R1 R2 G ND 4 70 pF C4 (Figure 1) 1. C1, C2 is required for best performance and should be fitted close to the converter pins. 2. The capacitance of C1, C2 sees external capacitor table, it can be increased properly if required, and tantalum or low ESR electrolytic capacitors may also suffice. 3. No parallel connection or plug and play. EXTERNAL CAPACITOR TABLE Part Number C1 (Ceramic Capacitor) C2 (Ceramic Capacitor) K7803T-1000 10 μF/25V 22 μF/16V K7805T-1000 10 μF/25V 22 μF/16V (Figure 3) ADJUSTMENT RESISTOR VALUES The R1, R2 in the above table are used to set the output voltage. If no need to adjust the output voltage, connect a ceramic capacitor to GND with 470pF typical value for increase immunity. Insure the output voltage is in the adjust range or else may cause permanent damage to the device. Fine-tune output voltage must appease Vin-Vo>2V. Part Number K7803T-1000 K7805T-1000 Vo (nominal) 3.3(V) 5.0(V) Vadj(V) R1(K Ω) R2(K Ω) R1(K Ω) R2(K Ω) 1.8 15.4 - - - 2.5 87 - 9.7 - 3.0 339 - 30.5 - 3.3 - - 48.8 - 3.6 - 121 75 - 3.9 - 51.0 115 - 4.5 - 16.6 338 - 4.9 - 8.0 1835 - 5.0 - 6.5 - - 5.1 - 5.2 - 426 5.5 - 1.1 - 58.7 6.0 - - - 16.9 6.5 - - - 3.2 0 50 1 00 1 50 2 00 2 50 Tim e (sec .) 9 0 M ax (> 22 0 C) S e c 22 0 C 10 M ax Se c P ea k .Te m p 24 0 C |
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