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UCC3912PWP Datasheet(PDF) 3 Page - Texas Instruments |
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UCC3912PWP Datasheet(HTML) 3 Page - Texas Instruments |
3 / 6 page 3 UCC3912 ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications apply for TJ = 0 °C to 70°C, VIN = 5V, IMAX = 0.4V, SHTDWN = 2.4V. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Output Section (cont.) Reverse Leakage Current VIN <VOUT , SHTDWN = 0.2V, VOUT = 5V 520 µA Initial Start-up Time (Note 2) 100 µs Short Circuit Response (Note 2) 100 ns Thermal Shutdown (Note 2) 170 °C Thermal Hysteresis (Note 2) 10 °C DAC Section Output Leakage Code = 0000-0011 0 20 µA Trip Current Code = 0100 0.1 0.25 0.45 A Code = 0101 0.25 0.50 0.75 A Code = 0110 0.5 0.75 1.0 A Code = 0111 0.75 1.00 1.25 A Code = 1000 1.0 1.25 1.5 A Code = 1001 1.25 1.50 1.75 A Code = 1010 1.5 1.75 2.0 A Code = 1011 1.7 2.00 2.3 A Code = 1100 1.9 2.25 2.58 A Code = 1101 2.1 2.50 2.9 A Code = 1110 2.3 2.75 3.2 A Code = 1111 2.5 3.0 3.5 A Max Output Current Code = 0000 to 0011 0.02 mA Max Output Current Over Trip (Current Source Mode) Code = 0100 to 1111, IMAX = 0V 0.5 1.0 1.8 A Max Output Current (Current Source Mode) Code = 0100 to 1111, IMAX = 2.4V 3.0 4.0 5.2 A Timer Section CT Charge Current VCT = 1.0V −45.0 −36.0 −22.0 µA CT Discharge Current VCT = 1.0V 0.72 1.2 1.5 µA Output Duty Cycle VOUT = 0V 2.0 3.0 6.0 % CT Fault Threshold 1.3 1.5 1.7 V CT Reset Threshold 0.4 0.5 0.6 V Shutdown Section Shutdown Threshold 1.1 1.5 1.9 V Shutdown Hysteresis 100 mV Input Current SHTDWN = 1V 100 500 nA Fault Output Section Output Leakage Current 500 nA Low Level Output Voltage IOUT = 10mA 0.4 0.8 V TTL Input DC Characteristics Section TTL Input Voltage High (can be connected to VIN) 2.0 V TTL Input Voltage Low 0.8 V TTL Input High Current VIH = 2.4V 3 10 µA TTL Input Low Current VIL = 0.4V 1 µA Note 1: All voltages are with respect to Ground. Current is positive into and negative out of the specified terminal. Note 2: Guaranteed by design. Not 100% tested in production. |
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