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LT1910 Datasheet(PDF) 5 Page - Linear Technology |
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LT1910 Datasheet(HTML) 5 Page - Linear Technology |
5 / 18 page LTC1154 5 1154fb TYPICAL PERFORMANCE CHARACTERISTICS Standby Supply Current Supply Current ON Input ON Threshold Voltage Shutdown Threshold Voltage ENABLE Threshold Voltage Gate Drive Current PIN FUNCTIONS Input and Shutdown Pins The LTC1154 input pin is active high and activates all of the protection and charge pump circuitry when switched ON. The shutdown pin is designed to immediately disable the switch if a secondary fault condition (over temperature, etc.) is detected. The LTC1154 logic and shutdown inputs are high impedance CMOS gates with ESD protection diodes to ground and supply and therefore should not be forced beyond the power supply rails. The shutdown pin should be connected to ground when not in use. ENABLE Input Pin The ENABLE input can be used to enable a number of LTC1154 high side switches in banks or to provide a sec- ondary means of control. It can also act as an inverting input. The ENABLE input is a high impedance CMOS gate with ESD clamp diodes to ground and supply and therefore should not be forced beyond the power supply rails. This pin should be grounded when not in use. TEMPERATURE (°C) –50 0 5 15 20 25 50 35 0 50 75 LTC1154 • TPC10 10 40 45 30 –25 25 100 125 VS = 18V VS = 5V VIN = 0V VEN = 0V TEMPERATURE (°C) –50 0 100 300 400 500 1000 700 050 75 LTC1154 • TPC11 200 800 900 600 –25 25 100 125 VS = 12V VS = 5V VIN = 5V VEN = 0V TEMPERATURE (°C) –50 0.4 0.6 1.0 1.2 1.4 2.4 1.8 050 75 LTC1154 • TPC12 0.8 2.0 2.2 1.6 –25 25 100 125 VS = 18V VS = 5V TEMPERATURE (°C) –50 0.4 0.6 1.0 1.2 1.4 2.4 1.8 050 75 LTC1154 • TPC13 0.8 2.0 2.2 1.6 –25 25 100 125 VS = 18V VS = 5V TEMPERATURE (°C) –50 0 0.5 1.5 2.0 2.5 5.0 3.5 050 75 LTC1154 • TPC14 1.0 4.0 4.5 3.0 –25 25 100 125 VS = 12V DISABLE ENABLE GATE VOLTAGE ABOVE SUPPLY (V) 1 10 100 1000 0 8 12 16 0.1 4 20 LTC1154 • TPC15 VS = 18V TA = 25°C VS = 12V VS = 5V |
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