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TS2950CT-5.0 Datasheet(PDF) 3 Page - Taiwan Semiconductor Company, Ltd |
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TS2950CT-5.0 Datasheet(HTML) 3 Page - Taiwan Semiconductor Company, Ltd |
3 / 6 page TS2950-51 series 3-6 2003/12 rev. B TS2951/A Electrical Characteristics (continues) (Vin= 15V, Ta= 25 oC unless otherwise specified.) Parameter Test Conditions (note 2) Min Typ Max Unit Feedback Pin Bias Current -- 20 40 nA Reference Voltage Temperature Coefficient (Note 7) -- 20 -- ppm/ oC Feedback Pin Bias Current Temperature Coefficient -- 0.1 -- nA/ oC Error Comparator Output Leakage Current VOH= 30V -- 0.01 1 uA Output Low Voltage Vin= 4.5V, IOL = 400uA -- 150 250 mV Upper Threshold Voltage (Note 8) 40 60 -- mV Power Threshold Voltage (Note 8) -- 75 95 mV Hysteresis (Note 8) -- 15 -- mV Shutdown Input Output Logic Voltage Low (Regulator ON) High(Regulator OFF) -- 2.0 1.3 1.3 0.7 -- V Shut down Pin Current Vs = 2.4V Vs = 30V -- 30 450 50 600 uA Regulator Output Current in Shutdown (Note 9) -- 3 10 uA Note 1: Output voltage temperature coefficients defined as the worst case voltage change divided by the total temperature range. Note 2: Unless otherwise specified all limits guaranteed for Tj= 25 oC, Vin= 6V, I L= 100uA and CL= 100uF. Additional conditions for the 8-pin versions are feedback tied to 5V, 3.3V & 3V tap output Sense (Vout = 5V, 3.3V & 3V) and Vshutdown ≤ 0.8V. Note 3: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. Note 4: Line regulation for the TS2951 is tested at 85 oC for I L= 1mA.For IL= 100uA and Tj= 125 oC, line regulation is guaranteed by design to 0.2%. Note 5: Dropout Voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured at 1V differential at very low value of programmed output voltage, the minimum input supply voltage of 2V (2.3V over temperature) must be taken in to account. Note 6: Vref ≤ Vout ≤ (Vin-1V), 2.3≤ Vin≤ 30V, 100uA≤ IL ≤ 100mA, Tj ≤ Tj(max). Note 7: reference voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. Note 8: Comparator thresholds are expressed in terms of a voltage differential at the feedback terminal below the nominal reference voltage measured at 6V input. To express these thresholds in terms of output voltage change, multiply by the error amplifier gain= Vout / Vref = (R1+R2) / R2. For example, at a programmed output voltage of 5V, the Error output is guaranteed to go low when the output drops by 95 mV X 5V / 1.250 = 384mV. Thresholds remain constant as a percent of Vout as Vout is varied with the dropout warning occurring at typically 5% below nominal, 7.5% guaranteed. |
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