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ML4812 Scheda tecnica(PDF) 3 Page - Fairchild Semiconductor |
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ML4812 Scheda tecnica(HTML) 3 Page - Fairchild Semiconductor |
3 / 16 page ML4812 REV. 1.0 10/10/2000 3 ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. Supply Current (ICC) ............................................... 30mA Output Current Source or Sink (OUT) DC ................ 1.0A Output Energy (capacitive load per cycle) .................. 5 µJ Gain Modulator ISINE Input (ISINE) ......................... 1.2mA Error Amp Sink Current (EA OUT) .......................... 10mA Oscillator Charge Current ........................................ 2mA Analog Inputs (ISENSE, EA–, OVP) ............... –0.3V to 5.5V Junction Temperature ............................................. 150 °C Storage Temperature Range ..................... –65 °C to 150°C Lead Temperature (soldering 10 sec.) ..................... 260 °C Thermal Resistance ( θJA) 20-Pin PLCC .................................................... 60 °C/W 16-Pin PDIP .................................................... 65 °C/W OPERATING CONDITIONS Temperature Range ML4812CX ................................................ 0 °C to 70°C ML4812IX ............................................. –40 °C to 85°C ELECTRICAL CHARACTERISTICS Unless otherwise specified, VCC = 15V , RT = 14kΩ, CT = 1000pF, TA = Operating Temperature Range (Notes 1, 2). PARAMETER CONDITIONS MIN TYP MAX UNITS OSCILLATOR Initial Accuracy TJ = 25°C 91 98 105 kHz Voltage Stability 12V < VCC < 18V 0.3 % Temperature Stability 2% Total Variation Line, temperature 90 108 kHz Ramp Valley to Peak 3.3 V RT Voltage 4.8 5.0 5.2 V Discharge Current (RT open) TJ = 25°C, VCT= 2V 7.8 8.4 9.0 mA VCT = 2V 7.3 8.4 9.3 mA Clock Out Voltage Low RL = 16kΩ 0.2 0.5 V Clock Out Voltage High RL = 16kΩ 3.0 3.5 V REFERENCE Output Voltage TJ = 25°C, IO = 1mA 4.95 5.00 5.05 V Line Regulation 12V < VCC < 25V 2 20 mV Load Regulation 1mA < IO < 20mA 2 20 mV Temperature Stability 0.4 % Total Variation Line, load, temp. 4.9 5.1 V Output Noise Voltage 10Hz to 10kHz 50 µV Long Term Stability TJ = 125°C, 1000 hours 5 25 mV Short Circuit Current VREF = 0V –30 –85 –180 mA ERROR AMPLIFIER Input Offset Voltage ±15 mV Input Bias Current –0.1 –1.0 µA Open Loop Gain 1 < VEA OUT < 5V 60 75 dB PSRR 12V < VCC < 25V 60 75 dB Output Sink Current VEA OUT = 1.1V, VEA– = 6.2V 2 12 mA Output Source Current VEA OUT = 5.0V, VEA– = 4.8V –0.5 –1.0 mA Output High Voltage IEA OUT = –0.5mA, VEA– = 4.8V 5.3 5.5 V Output Low Voltage IEA OUT = 1mA, VEA– = 6.2V 0.5 1.0 V Unity Gain Bandwidth 1.0 MHz |
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