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LT1241 Datasheet(PDF) 2 Page - Linear Integrated Systems |
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LT1241 Datasheet(HTML) 2 Page - Linear Integrated Systems |
2 / 16 page LT1241 Series 2 PARAMETER CONDITIONS MIN TYP MAX UNITS Reference Section Output Voltage IO = 1mA, TJ = 25°C 4.925 5.000 5.075 V Line Regulation 12V < VCC < 25V q 320 mV Load Regulation 1mA < IVREF < 20mA q –6 –25 mV Temperature Stability 0.1 mV/ °C Total Output Variation Line, Load, Temp q 4.87 5.13 V Output Noise Voltage 10Hz < F < 10kHz, TJ = 25°C50 µV Long Term Stability TA = 125°C, 1000 Hrs. 5 25 mV Output Short-Circuit Current q –30 – 90 –180 mA Oscillator Section Initial Accuracy RT = 10k, CT = 3.3nF, TJ = 25°C 47.5 50 52.5 kHz RT = 13.0k, CT = 500pF, TJ = 25°C 228 248 268 kHz Voltage Stability 12V < VCC < 25V, TJ = 25°C1 % Temperature Stability TMIN < TJ < TMAX – 0.05 %/ °C Amplitude TJ = 25°C (Pin 4) 1.7 V Clock Ramp Reset Current VOSC (Pin 4) = 2V, TJ = 25°C 7.9 8.2 8.5 mA Error Amplifier Section Feedback Pin Input Voltage VPIN1 = 2.5V q 2.42 2.50 2.58 V Input Bias Current VFB = 2.5V q –2 µA Open-Loop Voltage Gain 2 < VO < 4V q 65 90 dB Unity-Gain Bandwidth TJ = 25°C 0.7 1.3 2 MHz Power Supply Rejection Ratio 12V < VCC < 25V q 60 dB Output Sink Current VPIN2 = 2.7V, VPIN1 = 1.1V q 26 mA Output Source Current VPIN2 = 2.3V, VPIN1 = 5V q – 0.5 – 0.75 mA ELECTRICAL C C HARA TERISTICS (Notes 1, 2) A G A U A R BSOLUTEXI TI S Supply Voltage ........................................................ 25V Output Current ....................................................... ±1A* Output Energy (Capacitive Load per Cycle) ...............5 µJ Analog Inputs (Pins 2, 3) ............................... – 0.3 to 6V Error Amplifier Output Sink Current...................... 10mA Power Dissipation at TA ≤ 25°C ................................ 1W Operating Junction Temperature Range LT124XC ............................................. 0 °C to 100°C LT124XI......................................... – 40 °C to 100°C LT124XM........................................ – 55 °C to 125°C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C *The 1A rating for output current is based on transient switching requirements. ORDER PART NUMBER LT124XCJ8 LT124XCN8 LT124XCS8 LT124XIN8 LT124XIS8 LT124XMJ8 S8 PART MARKING 124X 124XI PACKAGE/ORDER I FOR ATIO COMP FB ISENSE RT/CT VREF VCC OUTPUT GND S8 PACKAGE 8-LEAD PLASTIC SO N8 PACKAGE 8-LEAD PDIP J8 PACKAGE 8-LEAD CERDIP 1 2 3 4 8 7 6 5 TOP VIEW TJMAX = 125°C, θJA = 100°C/W (J8) TJMAX = 100°C, θJA = 130°C/W (N8) TJMAX = 100°C, θJA = 150°C/W (S8) |
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