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UC2860DWTR Fiches technique(PDF) 3 Page - Texas Instruments |
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UC2860DWTR Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 10 page UC1860 UC2860 UC3860 ELECTRICAL CHARACTERISTICS: PARAMETER CONDITIONS MIN TYP MAX UNITS Oscillator Section (cont’d) Trig in Threshold 1.0 1.4 1.8 V Trig in Open Circuit Voltage 0.7 0.9 1.1 V Trig in Delta (VTH-VOC) 0.3 0.5 0.7 V Trig in Input Resistance dV TRIG = VOC to VTH 512 25 k Ω Minimum Trig in Pulse Width* 3 10 ns Osc. Disable Threshold 1.0 1.4 1.8 V One Shot Timer On Time* 150 200 250 ns Clamp Frequency* IVFO = 1.5mA 2.8 3.7 4.6 MHz Dead Time* IVFO =1.5mA 35 70 100 ns Output Stage Output Low Saturation 20mA 0.2 0.4 V 200mA 0.5 2.2 V Output High Saturation -20mA 1.5 2.0 V -200mA 1.7 2.5 V Rise/Fall Time* CLOAD = 1nF 1530ns UVLO Low Saturation 20mA 0.8 1.5 V Output Mode Low Input 0.4 V Output Mode High Input 2.0 V Under Voltage Lockout Section VCC Comparator Threshold On 16 17.3 18.5 V Off 9.5 10.5 12 V UVLO Comparator Threshold On 3.6 4.2 4.8 V Hysteresis 0.2 0.4 0.6 V UVLO Input Resistance UVLO = 4/VCC = 8 102350 k Ω VREF Comparator Threshold VCC = UVLO = VREF 4.5 4.9 V Supply Current ICC VCC = 12V, VOSC DSBL = 3V 30 40 mA ISTART UVLO pin open VCC = VCC (on) -0.3V 0.3 0.5 mA Fault Comparator Input Offset Voltage −0.3 ≤ VCM ≤ 3V 2 10 mV Input Bias Current VCM = 0V 100 200 µA Input Offset Current VCM = 0V 10 30 µA Propagation Delay To Output* ±50mV input 100 150 ns Uncommitted Comparator Input Offset Voltage -0.3 ≤ VCM ≤ 3V 2 10 mV Input Bias Current VCM = 0V 100 200 µA Input Offset Current VCM = 0V 10 30 µA Output Low Voltage IO = 2mA 0.3 0.5 V Propagation Delay To Sat* ±50mV input, 2.5k load to 5V 50 100 ns Soft Start/Restart Control Section Saturation Voltage (2 pins) ISINK = 100 µA0.2 0.5 V Charge Current (2 pins) 2 5 10 µA Restart Delay Threshold 2.8 3.0 3.2 V *Guaranteed by design but not 100% tested. Unless otherwise stated, all specifications apply for -55°C ≤ TA ≤ 125°C for the UC1860, -25° ≤ TA ≤ 85°C for the UC2860, 0 ≤ TA ≤ 70°C for the UC3860, VCC = 12V, CVFO = 330pF, IVFO = 0.5mA, C = 330pF, and R = 2.7k, TA = TJ. 3 |
Numéro de pièce similaire - UC2860DWTR |
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Description similaire - UC2860DWTR |
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