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SI-8000HFE Arkusz danych(PDF) 1 Page - Sanken electric |
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1 / 2 page 46 ICs 1-1-3 DC/DC Converter ICs ■Lineup Part Number SI-8008HFE SI-8050HFE VO (V) Variable (0.8 to 15) 5 IO (A) 5.5 ■Absolute Maximum Ratings Unit V W °C °C °C/W °C/W Ratings 43 25 (with infinite heatsink) 20 (with infinite heatsink) 2.15 (without heat sink, standalone operation) 1.72 (without heatsink, standalone operation) +150 –40 to +150 5 58 Symbol VIN PD1-1 PD1-2 PD2-1 PD2-2 Tj Tstg θj-c θj-a Parameter DC Input Voltage Power Dissipation Junction Temperature* Storage Temperature Thermal Resistance (Junction to Case) Thermal Resistance (Junction to Ambient Air) ■Recommended Operating Conditions ■Features • Compact full-mold package (equivalent to TO220) • Output current: 5.5 A • High efficiency: 83% typ. (at Vo = 5 V) • Requires only 4 discrete components • Built-in reference oscillator (150 kHz) • Built-in drooping-type-overcurrent and thermal protection circuits • Built-in soft start circuit (Output ON/OFF available) (Ta=25°C) Full-Mold, Separate Excitation Step-down Switching Mode SI-8000HFE Series ■Applications • Onboard local power supplies •OA equipment Conditions Limited by thermal protection, Tjmax=150°C Tjmax=125°C Limited by thermal protection, Tjmax=150°C Tjmax=125°C *: This product has built-in thermal protection circuits that may operate when the junction temperature rises above 130°C. The recommended design for the junction temperature during operation is below 125°C. Parameter Input Voltage Range Output Voltage Range Output Current Range Operating Junction Temperature Range Operating Temperature Range Symbol VIN VO IO Tjop Top Unit V V A °C °C Ratings SI-8008HFE SI-8050HFE Vo+3*1 to 40 8 to 40 0.8 to 24 5.0 0 to 5.5 –30 to +125 –30 to +85 *1: The minimum value of an input voltage range is the higher of 4.5 V or VO + 3 V. ■Electrical Characteristics SI-8008HFE (at Vo = 5 V) SI-8050HFE min. 0.784 5.6 5.6 typ. 0.800 VIN=15V, Io=1A max. 0.816 50 min. 4.90 typ. 5.00 VIN=15V, Io=1A ±0.5 VIN=15V, Io=1A, Tc=0 to 100 °C 83 VIN=15V, Io=3A max. 5.10 Vo (VADJ) ∆VOLOAD ±0.1 VIN=15V, Io=1A, Tc=0 to 100 °C 83 VIN=15V, Io=3A ∆Vo/∆T ( ∆VADJ/∆T) η 10 VSSL=0V 10 VSSL=0V 0.5 30 0.5 30 20 VIN=15V, Io=0.2 to 5.5A 20 VIN=15V, Io=0.2 to 5.5A 150 VIN=15V, Io=3A 150 VIN=15V, Io=3A fo 60 VIN=10 to 30V, Io=3A 80 60 VIN=10 to 30V, Io=3A 80 50 ∆VOLINE 6 VIN=15V, Io=0A 6 VIN=15V, Io=0A VIN=15V VIN=15V Iq 200 VIN=15V, VSS=0V 200 VIN=15V, VSS=0V 400 400 Iq(OFF) Low Level Voltage Outflow Current at Low Voltage VSSL ISSL IS V mV/ °C % kHz mV mV A V µA mA µA Parameter Conditions Conditions Conditions Conditions Conditions Conditions Conditions Conditions Conditions Conditions Symbol Unit Ratings Ratings Output Voltage (Reference Voltage) Efficiency Oscillation Frequency Line Regulation Quiescent Circuit Current Load Regulation Overcurrent Protection Starting Current ON/OFF Pin* Temperature Coefficient of Output Voltage (Temperature Coefficient of Reference Voltage) (Ta=25°C) *: Pin 5 is the SS pin. Soft start at power on can be performed with a capacitor connected to this pin. The output can also be turned ON/OFF with this pin. The output is stopped by setting the voltage of this pin to VSSL or lower. SS-pin voltage can be changed with an open-collector drive circuit of a transistor. When using both the soft-start and ON/OFF functions together, the discharge current from C3 flows into the ON/OFF control transistor. Therefore, limit the cur- rent securely to protect the transistor if C3 capacitance is large. The SS pin is pulled up to the power supply in the IC, so applying the external voltage is prohibited. If the pin is not used, leave it open. SI-8000HFE SI-8000HFE SS 5SS 5SS C3 C3 5 VOUT. ON/OFF Soft start Soft start +VOUT. ON/OFF SI-8000HFE |
Podobny numer części - SI-8000HFE_11 |
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Podobny opis - SI-8000HFE_11 |
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