поискавой системы для электроныых деталей |
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UC1846-EP датащи(PDF) 4 Page - Texas Instruments |
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UC1846-EP датащи(HTML) 4 Page - Texas Instruments |
4 / 15 page www.ti.com Electrical Characteristics UC1846-EP CURRENT-MODE PWM CONTROLLER SGLS329 – MAY 2006 T A = –55°C to 125°C, VIN = 15 V, RT = 10 k, CT = 4.7 nF, TA = TJ (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Reference Output voltage TJ = 25°C, IO = 1 mA 5.05 5.1 5.15 V Line regulation VIN = 8 V to 40 V 5 20 mV Load regulation IL = 1 mA to 10 mA 3 15 mV Temperature stability Over operating range(1) 0.4 mV/ °C Total output variation Line, load, and temperature(1) 5 5.2 V Output noise voltage 10 Hz ≤ f ≤ 10 kHz, T J = 25°C (1) 100 µV Long-term stability TJ = 125°C, 1000 h 5 mV Short-circuit output current VREF = 0 V –10 –45 mA Oscillator Initial accuracy TJ = 25°C 39 43 47 kHz Voltage stability VIN = 8 V to 40 V –1 2 % Temperature stability Over operating range(1) –1 % Sync output high level 3.9 4.35 V Sync output low level 2.3 2.5 V Sync input high level Pin 8 = 0 V 3.9 V Sync input low level Pin 8 = 0 V 2.5 V Sync input current Sync voltage = 3.9 V, Pin 8 = 0 V 1.3 1.5 mA Error Amplifier Input offset voltage 0.5 5 mV Input bias current –0.6 –1 µA Input offset current 40 250 nA Common-mode range VIN = 8 V to 40 V 0 VIN – 2 V Open-loop voltage gain ∆V O = 1.2 V to 3 V, VCM = 2 V 80 105 dB Unity gain bandwidth TJ = 25°C(1) 0.7 1 MHz CMRR VCM = 0 V to 38 V, VIN = 40 V 75 100 dB PSRR VIN = 8 V to 40 V 80 105 dB Output sink current VID = –15 mV to –5 V, VPIN7 = 1.2 V 2 6 mA Output source current VID = 15 mV to 5 V, VPIN7 = 2.5 V –0.4 –0.5 mA High-level output voltage RL = 15 kΩ (pin 7) 4.3 4.6 V Low-level output voltage RL = 15 kΩ (pin 7) 0.7 1 V (1) These parameters, although specified over the recommended operating conditions, are not 100% tested in production. 4 Submit Documentation Feedback |
Аналогичный номер детали - UC1846-EP |
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Аналогичное описание - UC1846-EP |
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