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UC2872NG4 Fiches technique(PDF) 3 Page - Texas Instruments |
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UC2872NG4 Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 11 page 3 UC1872 UC2872 UC3872 ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these parameters apply for TJ = −55° C to +125°C for the UC1872, –40 ° C to +85° C for the UC2872, −0°C to +70°C for the UC3872; VCC= 5V, VC = 15V, VENBL = 5V, CT = 1nF, ZD = 1V. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Error Amp Section (cont.) Output Low VINV = 1.7V 0.1 0.2 V Output Source Current VINV = 1.3V, VO = 2V –350 –500 µA Output Sink Current VINV = 1.7V, VO = 2V 10 20 mA Common Mode Range 0VIN-1V V Unity Gain Bandwidth TJ = 25° C (Note 4) 1 MHz Open Lamp Detect Section Soft Start Threshold VINV = 0V 2.9 3.4 3.8 V Open Lamp Detect Threshold VSS = 4.2V 0.6 1.0 1.4 V Soft Start Current VSS = 2V 10 20 40 µA Output Section Output Low Level IOUT = 0, Outputs A and B 0.05 0.2 V IOUT = 10mA 0.1 0.4 V IOUT = 100mA 1.5 2.2 V Output High Level IOUT = 0, Output C 13.9 14.9 V IOUT = −10mA 13.5 14.3 V IOUT = −100mA 12.5 13.5 V Rise Time TJ = 25° C, Cl = 1nF (Note 4) 30 80 ns Fall Time TJ = 25° C, Cl = 1nF (Note 4) 30 80 ns Output Dynamics Out A and B Duty Cycle 48 49.9 50 % Out C Max Duty Cycle VINV = 1V 100 % Out C Min Duty Cycle VINV = 2V 0 % Under Voltage Lockout Section Startup Threshold Voltage 3.7 4.2 4.5 V Hysteresis 120 200 280 mV Enable Section Input High Threshold 2V Input Low Threshold 0.8 V Input Current VENBL = 5V 150 400 µA Supply Current Section VCC Supply Current VCC = 24V 6 14 mA VC Supply Current VC = 24V 5 12 mA ICC Disabled VCC = 24V, VENBL = 0V 1 10 µA Note 3: Unless otherwise specified, all voltages are with respect to ground. Currents are positive into, and negative out of the specified terminal. Note 4: Guaranteed by design. Not 100% tested in production. |
Numéro de pièce similaire - UC2872NG4 |
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Description similaire - UC2872NG4 |
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