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UC1527AL883B Datasheet(PDF) 4 Page - Texas Instruments |
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UC1527AL883B Datasheet(HTML) 4 Page - Texas Instruments |
4 / 17 page www.ti.com ELECTRICAL CHARACTERISTICS f + 1 C T 0.7RT ) 3RD UC1525A, UC1527A UC2525A, UC2527A UC3525A, UC3527A SLUS191C – FEBRUARY 1997 – REVISED JANUARY 2008 +VIN = 20 V, and over operating temperature, unless otherwise specified, TA = TJ PARAMETER TEST CONDITIONS MIN TYP MAX UNIT REFERENCE UC152xA, UC252xA 5.05 5.10 5.15 Output voltage TJ = 25°C V UC352xA 5.0 5.1 5.2 Line regulationg VIN = 8 V to 35 V 10 20 Load regulationg IL = 0 mA to 20 mA 20 50 mV Temperature stability(1) Over operating range 20 50 UC152xA, UC252xA 5.0 5.2 Total output variation(1) Line, load, and temperature V UC352xA 4.95 5.25 Shorter circuit current VREF = 0, TJ = 25°C 80 100 mA Output noise Voltage(1) 10 Hz ≤ 10 kHz, TJ = 25°C 40 200 µVrms Long term stability (1) TJ = 125°C 20 50 mV OSCILLATOR SECTION(2) Initial accuracy(1) (2) TJ = 25°C 2% 6% UC152xA, UC252xA 0.3% 1% Voltage stability(1) (2) VIN = 8 V to 35 V UC352xA 1% 2% Temperature stability(1) Over operating range 3% 6% Minimum frequency RT = 200 kΩ, CT = 0.1 µF 120 Hz Maximum frequency RT = 2 kΩ, CT = 470 pF 400 kHz Current mirror IRT = 2 mA 1.7 2.0 2.2 mA Clock amplitude(1) (2) 3.0 3.5 V Clock width(1) (2) TJ = 25°C 0.3 0.5 1.0 µs Syncronization threshold(1) (2) 1.2 2.0 2.8 V Sync input current Sync voltage = 3.5 V 1.0 2.5 mA ERROR AMPLIFIER SECTION (VCM = 5.1 V) UC152xA, UC252xA 0.5 5 mV Input offset voltage UC352xA 2 10 Input bias current 1 10 µA Input offset current 1 DC open loop gain RL ≥ 10 MΩ 60 75 dB Gain-bandwidth product(1) AV = 0 dB, TJ = 25°C 1 2 MHz DC transconductanc(1) (3) TJ = 25°C, 30 kΩ ≤ RL ≤ 1 MΩ 1.1 1.5 mS Low-level output voltage 0.2 0.5 V High-level output voltage 3.8 5.6 Common mode rejection VCM = 1.5 V to 5.2 V 60 75 dB Supply voltage rejection VIN = 8 V to 35 V 50 60 (1) These parameters, although ensured over the recommended operating conditions, are not 100% tested in production. (2) Tested at fOSC = 40 kHz (RT = 3.6 kΩ, CT = 0.01 µF, RD = 0. Approximate oscillator frequency is defined by: (3) DC transconductance (gM) relates to DC open-loop voltage gain (AV) according to the following equation: AV = gMRL where RL is the resistance from pin 9 to ground. The minimum gM specification is used to calculate minimum AV when the error amplifier output is loaded. 4 Submit Documentation Feedback Copyright © 1997–2008, Texas Instruments Incorporated Product Folder Link(s): UC1525A, UC1527A UC2525A, UC2527A UC3525A, UC3527A |
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