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SI-8008HD 数据表(PDF) 1 Page - Sanken electric |
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SI-8008HD 数据表(HTML) 1 Page - Sanken electric |
1 / 2 page 34 ICs 1-1-3 DC/DC Converter ICs Paramter Reference Voltage Temperature Coefficient of Reference Voltage Efficiency Oscillation Frequency Line Regulation Load Regulation Overcurrent Protection Starting Current Low Level Voltage SS Pin*1 Outflow Current at Low Voltage Quiescent Circuit Current ■Features • Surface-mount package (TO263-5) • Output current: 5.5 A • High efficiency: 83% (at TYP, Vo = 5 V) • Requires only 5 discrete components (SI- 8008HD) • Built-in reference oscillator (150 kHz) • Built-in drooping-type overcurrent and thermal protection circuits • Built-in soft start circuit (Output ON/OFF available) • Low current consumption during off ■Applications • DVD recorder, FPD-TV • Onboard local power supplies • OA equipment ■Absolute Maximum Ratings ■Recommended Operating Conditions *1: The minimum value of the input voltage range is 4.5 V or Vo+3 V, whichever is higher. 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-8008HD Vo+3*1 to 40 0.8 to 24 0 to 5.5 –30 to +100 –30 to +85 Symbol VADJ Conditions (∆VADJ/∆T) Conditions η Conditions fo Conditions ∆VOLINE Conditions ∆VOLOAD Conditions IS Conditions VSSL ISSL Conditions Iq Conditions Iq(OFF) Conditions ■Electrical Characteristics Unit V mV/°C % kHz mV mV A V µA mA µA (R1=4.2kΩ, R2=0.8kΩ when Ta=25°C and Vo=5V) *1: 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 (3.7 V typ.) to the power supply in the IC, so applying the external voltage is prohibited. If this pin is not used, leave it open. *1: Limited by thermal protection circuit *2: This product has built-in thermal protection circuits that may activate when the junction temperature exceeds 130°C. The recommended design for the junction temperature during IC operation is below 125°C. Unit V W °C °C °C/W °C/W Ratings 43 3 +150 –40 to +150 3 33.3 Symbol VIN PD Tj Tstg θj-c θj-a Parameter Input Voltage Power Dissipation*1 Junction Temperature*2 Storage Temperature Thermal Resistance (Junction to Case) Thermal Resistance (Junction to Ambient Air) Conditions When mounted on glass-epoxy board measuring 40×40 mm (copper laminate area: 100%) When mounted on glass-epoxy board measuring 40×40 mm (copper laminate area: 100%) When mounted on glass-epoxy board measuring 40×40 mm (copper laminate area: 100%) Conditions VIN ≥ Vo+3V Ratings SI-8008HD min. typ. max. 0.784 0.800 0.816 VIN=15V, Io=1A ±0.1 VIN=15V, Io=1A, Tc=0 to 100°C 83 VIN=15V, Io=3A 150 VIN=15V, Io=3A 60 80 VIN=10 to 30V, Io=3A 20 50 VIN=15V, Io=0.2 to 5.5A 5.6 6.5 7.5 VIN=15V 0.5 10 30 VSSL=0V 6 VIN=15V, Io=0A 200 400 VIN=15V, VSS=0V SI-8008HD SI-8008HD SS 5SS 5SS C3 C3 5 VO.ON/OFF Soft start Soft start +Vo. On/OFF SI-8008HD Surface-Mount, Separate Excitation Step-down Switching Mode SI-8000HD Series |
类似零件编号 - SI-8008HD |
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类似说明 - SI-8008HD |
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