поискавой системы для электроныых деталей |
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UC2914N датащи(PDF) 4 Page - Texas Instruments |
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UC2914N датащи(HTML) 4 Page - Texas Instruments |
4 / 24 page UC2914 UC3914 SLUS425C − DECEMBER 2003 − REVISED JULY 2004 4 www.ti.com ELECTRICAL CHARACTERISTICS TA = 0°C to 70°C for the UC3914, −40°C to 85°C for the UC2914, VCC = 12V, VPUMP = VPUMP(max), SD = 5 V, CP1 = CP2 = CPUMP= 0.01 µF. TA = TJ. (Unless otherwise specified) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CHARGE PUMP fOSC, fOSCB Oscillator frequency OSC, OSCB 60 150 250 kHz VOH High-level output voltage IOSC = −5 mA 10.0 11.0 11.6 V VOL Low-level output voltage IOSC = 5 mA 0.2 0.5 V Output clamp voltage VCC = 25 V 18.5 20.5 22.5 V ILIM Output current limit High side only −20 −10 −3 mA Pump diode voltage drop IDIODE = 10 mA, measured from PMP to PMPB, PMPB to VPUMP 0.5 0.9 1.3 PMP clamp voltage VCC = 25 V 18.5 20.5 22.5 VPUMP maximum voltage VVOUTS = VCC charge pump disable threshold, VCC = 12 V 20 22 24 VPUMP maximum voltage VVOUTS = VCC charge pump disable threshold, VCC = 35 V 42 45 48 V VPUMP hysteresis VVOUTS = VCC charge pump re-enable threshold, VCC = 12 V 0.3 0.7 1.4 VPUMP hysteresis VVOUTS = VCC charge pump re-enable threshold, VCC = 35 V 0.25 0.70 1.40 REFERENCE REF output voltage wrt VCC −2.25 −2.00 −1.75 V REF current limit 12.5 20.0 50.0 mA Load regulation 1 mA ≤ IVREF ≤ 5 mA 25 60 mV Line regulation 5 V ≤ VVCC ≤ 35 V 25 100 mV FAULT Low-level output voltage IFAULT = 1 mA 100 200 mV Output leakage VFAULT = 35 V 10 500 nA LATCH Latch release threshold voltage High-to-low 0.6 1.4 2.0 V Input current VLR = 5 V 500 750 µA POWER LIMITING Duty cycle control IPLIM = 200 µA In fault mode 0.6% 1.3% 2.0% Duty cycle control IPLIM = 3 mA In fault mode 0.05% 0.12% 0.20% OVERLOAD Delay-to-output time(1) 500 1250 ns Threshold voltage wrt IMAX −250 −200 −150 mV (1) Ensured by design. Not production tested. (2) A mathematical averaging is used to determine this value. See Application Section for more information. |
Аналогичный номер детали - UC2914N |
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Аналогичное описание - UC2914N |
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