 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
SI9124 Datasheet(PDF) 3 Page - Vishay Siliconix |
|
||||||||||||||||||||||||||||||
SI9124 Datasheet(HTML) 3 Page - Vishay Siliconix |
|
|
3 / 16 page 
Si9124 Vishay Siliconix New Product Document Number: 72099 S-03638—Rev. B, 20-Mar-03 www.vishay.com 3 ABSOLUTE MAXIMUM RATINGS (ALL VOLTAGES REFERENCED TO GND = 0 V) VIN (Continuous) 75 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VIN (100 ms) 100 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC 14.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC2 14.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VREF, ROSC - 0.3 V to VCC + 0.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Logic Inputs - 0.3 V to VCC + 0.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analog Inputs - 0.3 V to VCC + 0.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SEC_SYNC Drive Current 35 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HV Pre-Regulator Input Current (continuous) 5 mA . . . . . . . . . . . . . . . . . . . . . Storage Temperature - 65 to 150 _C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Junction Temperature 125 _C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Dissipationa TSSOP-16 (TA = 25_C) 1.25 W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thermal Impedance ( QJA) TSSOP-16b 100 _C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notes a. Device mounted on JEDEC compliant 1S2P (4 layer) test board. b. Derate - 10 mW/ _C above 25_C. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING RANGE (ALL VOLTAGES REFERENCED TO GND = 0 V) VIN 36 to 72 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CVIN1 ø CVIN2 100 mF/ESR v 100 mW and 0.1 mF . . . . . . . . . . . . . . . . . . . . . . . VCC Operating 10 to 13.2 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CVCC 4.7 mF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . fOSC 200 to 600 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ROSC 24 to 72 k W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REXT 1.4 k W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CSS 22 nF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CREF 1.0 mF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CBOOST 0.1 mF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CLOAD 150 mF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analog Inputs 0 to VCC - 0.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Digital Inputs 0 to VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reference Voltage Output Current 0 to 2.5 mA . . . . . . . . . . . . . . . . . . . . . . . . . SPECIFICATIONSa Test Conditions Unless Specified CS1 = CS2 = 0 V, fNOM = 500 kHz, VIN = 48 V Limits - 40 to 85 _C Parameter Symbol CS1 = CS2 = 0 V, fNOM = 500 kHz, VIN = 48 V VINDET = 4.8 V; 10 V v VCC v 13.2 V, VCC2 = VCC Minb Typc Maxb Unit Reference (3.3 V) Output Voltage VREF VCC = 12 V, 25_C Load = 0 mA 3.2 3.3 3.4 V Short Circuit Current ISREF VREF = 0 V -50 mA Load Regulation dVr/dlr IREF = 0 to - 2.5 mA -30 -75 mV Power Supply Rejection PSRR @ 100Hz 60 dB Oscillator Accuracy (1% ROSC) ROSC = 30 kW, fNOM = 500 kHz -20 20 % Max Frequency FMAX ROSC = 24 kW 600 kHz Error Amplifier Input Bias Current IBIAS VEP = 0 V -40 -15 mA Gain AV - 2.2 V/V Bandwidth BW 5 MHz Power Supply Rejection PSRR @ 100Hz 60 dB Slew Rate SR 0.5 V/ ms Current Sense Amplifier Input Voltage CM Range VCM VCS1 - GND, VCS2 - GND "150 mV Input Amplifier Gain AVOL 17.5 dB Input Amplifier Bandwidth BW 5 MHz Input Amplifier Offset Voltage VOS "5 VCC Hiccup Threshold VTHCUP Increase CS2 Until SS Hiccups 150 mV Hysteresis Decrease CS2 Until SS Clamps -50 mV |
English ▼
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
