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5962-8670406VXA Datasheet(PDF) 3 Page - Texas Instruments |
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5962-8670406VXA Datasheet(HTML) 3 Page - Texas Instruments |
3 / 15 page ABSOLUTE MAXIMUM RATINGS (1) (2) RECOMMENDED OPERATING CONDITIONS ELECTRICAL CHARACTERISTICS UC1842A-SP, UC1843A-SP, UC1844A-SP, UC1845A-SP www.ti.com........................................................................................................................................................ SLUS872A – JANUARY 2009 – REVISED MAY 2009 over operating free-air temperature range (unless otherwise noted) VCC Supply voltage, low-impedance source 30 V Supply current Self limiting IO Output current ±1 A Output energy (capacitive load) 5 µJ VI Input voltage (VFB, ISENSE) –0.3 V to 6.3 V Error amplifier output sink current 10 mA PD Power dissipation (TA = 25°C) 1 W Tstg Storage temperature range –65°C to 150°C Tlead Lead temperature (soldering, 10 seconds) 300°C (1) 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 under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) All voltages are with respect to ground. Currents are positive into, negative out of the specified terminal. over operating free-air temperature range (TA = TJ = –55°C to 125°C), unless otherwise noted. MIN MAX UNIT VCC Supply voltage 12 25 V Sink/source output current (continuous or time average) 0 200 mA Reference load current 0 20 mA VCC = 15 V (1), R T = 10 kΩ, CT = 3.3 nF, TA = TJ = –55°C to 125°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Reference Section Output voltage TJ = 25°C, IO = 1 mA 4.95 5 5.06 V Line regulation VIN = 12 V to 25 V 6 20 mV Load regulation IO = 1 mA to 20 mA 6 25 mV Temperature stability(2)(3) 0.2 0.4 mV/°C Total output variation Over line, load, and temperature 4.9 5.1 V Output noise voltage 10 Hz ≤ f ≤ 10 kHz, TJ = 25°C 50 µV Long term stability 1000 hours, TA = 125°C (2) 5 25 mV Short-circuit output current –30 –100 –180 mA Oscillator Section Initial accuracy TJ = 25°C (4) 47 52 57 kHz Voltage stability VCC = 12 V to 25 V 0.2 1 % Temperature stability TA = MIN to MAX (2) 5 % Amplitude peak-to-peak V pin 4(2) 1.7 V TJ = 25°C 7.8 8.3 8.8 Discharge current V pin 4 = 2 V(5) mA TJ = Full range 7.5 8.8 (1) Adjust VCC above the start threshold before setting at 15 V. (2) Parameters ensured by design and/or characterization, if not production tested. (3) Temperature stability, sometimes referred to as average temperature coefficient, is described by the equation: Temp Stability = VREF (max) - VREF (min)/TJ (max) - TJ (min). VREF (max) and VREF (min) are the maximum and minimum reference voltage measured over the appropriate temperature range. Note that the extremes in voltage do not necessarily occur at the extremes in temperature. (4) Output frequency equals ocscillator frequency for the UC1842A and UC1843A. Output frequency is one half oscillator frequency for UC18444A and UC1845A. (5) This parameter is measured with RT = 10 kΩ to VREF. This contributes approximately 300 µA of current to the measurement. The total current flowing into the RT/CT pin will be approximately 300 µA higher than the measured value. Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): UC1842A-SP UC1843A-SP UC1844A-SP UC1845A-SP |
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