BC847B/215
Nexperia USA Inc.
The Nexperia USA Inc. BC847B/215 is a bipolar transistor. It is RoHS3 Compliant and has an MSL Level 1 rating.
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36 pcs
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36 pcs | On Request | 1 | On Request | On Request | 13+ | On Request | On Request |
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| Tape & Reel |
The LTC4217IFE is a surge suppression integrated circuit from LT, designed for robust circuit protection.
This IC features a nominal current limit of 2A, adjustable via the ISET pin. It includes a current monitor output (IMON) that provides a voltage proportional to the internal MOSFET switch current, with a ratio of 1:20000. This allows for precise monitoring of current flow. The device operates with an internal 3.1V supply, requiring a 1µF bypass capacitor for stable operation.
Key electrical features include an overvoltage threshold of 1.235V and a power good threshold of 1.21V. The FB pin monitors input voltage and can trigger a foldback current limit if it drops below 0.6V. The GATE pin controls the internal N-channel MOSFET, with specific current sources for start-up, under/over voltage conditions, and short-circuit events.
The LTC4217IFE is supplied in a DHC package. Its surge suppression capabilities make it suitable for applications requiring protection against voltage transients and overcurrent events.
The device supports a nominal current limit of 2A, which can be adjusted using an external resistor on the ISET pin.
The IMON pin sources a current equal to 1/20000th of the internal MOSFET switch current, creating a 0V to 2V swing with a 20k resistor to ground.
A 140mA pull-down current source activates between the GATE and OUT pins to rapidly turn off the MOSFET.
The GATE pin ramps up at a controlled rate of 0.3V/ms determined by internal circuitry.
The open-drain PG pin releases to go high when the FB pin rises above 1.23V and the GATE to OUT voltage exceeds 4.2V.
The component is available in a DHC package case.