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SI-8008TM датащи(PDF) 1 Page - Sanken electric |
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SI-8008TM датащи(HTML) 1 Page - Sanken electric |
1 / 2 page 18 ICs 1-1-3 DC/DC Converter ICs Surface-Mount, Separate Excitation Step-down Switching Mode SI-8000TM Series ■Absolute Maximum Ratings Unit V W °C °C °C/W °C/W Ratings 43 1.06 1.65 –30 to +150 –40 to +150 6 95 Symbol VIN PD1 PD2 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) ■Features • Compact surface-mount package (TO252-5) • Output current: 1.5 A • High efficiency: 81% typ. (at Vo = 5 V) • Requires only 4 discrete components • Built-in reference oscillator (300 kHz) • Built-in drooping-type-overcurrent and thermal protection circuits • Output ON/OFF available (circuit current at output OFF: 200 µA typ.) • Soft start available by ON/OFF pin Conditions When mounted on glass-epoxy board (900 mm2 copper area 4.3%) When mounted on glass-epoxy board (900 mm2 copper area 50%) When mounted on glass-epoxy board (900 mm2 copper area 4.3%) *: 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. ■Applications • Onboard local power supplies •AV equipment •OA equipment ■Recommended Operating Conditions Parameter Input Voltage Range Output Voltage Output Current Range Operating Junction Temperature Range Operating Temperature Range Symbol VIN VO IO Tjop Top Ratings SI-8008TM VO+3*1 to 40 0.8 to 24 0 to 1.5 –20 to +100 –20 to +85 Unit V V A °C °C *1: The minimum value of an input voltage range is the higher of 4.5 V or VO + 3 V. ■Electrical Characteristics (Ta=25°C) Parameter Symbol Unit Rating SI-8008TM min. 0.784 1.6 typ. 0.800 VIN=15V, Io=0.1A max. 0.816 80 Reference Voltage Efficiency Oscillation Frequency Line Regulation Load Regulation Overcurrent Protection Starting Current VADJ ∆VOLOAD Conditions Conditions Conditions Conditions Conditions Conditions Conditions Conditions Conditions Conditions ±0.1 VIN=15V, Io=0.1A, Tc=0 to 100 °C 81 VIN=15V, Io=0.5A ∆VADJ/∆T η 10 VSSL=0V 0.5 40 10 VIN=15V, Io=0.2 to 1.5A 40 300 VIN=15V, Io=0.5A fo 60 VIN=10 to 30V, Io=0.5A ∆VOLINE 6 VIN=15V, Io=0A VIN=15V Iq 200 VIN=15V, VSS=0V 400 Iq (OFF) VSSL ISSL IS V mV/ °C % kHz mV mV A V µA mA µA ON/OFF Pin* Quiescent Circuit Current Low Level Voltage Outflow Current at Low Voltage Temperature Coefficient of Reference Voltage *: 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 current 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-8000TM SI-8000TM SS 5SS 5SS C3 C3 5 VO. ON/OFF Soft start Soft start +VO. ON/OFF SI-8000TM |
Аналогичный номер детали - SI-8008TM |
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Аналогичное описание - SI-8008TM |
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