LTC1643AHCGN#PBF

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The LTC1643AHCGN#PBF is a hot swap controller manufactured by Linear Technology Corporation. It is designed to safely power up loads within a system in an orderly manner, while providing protection against damaging over-current and over-temperature conditions. The device is part of the PMIC family of hot swap controllers.

The LTC1643AHCGN#PBF is a monolithic device with two independent channels. Each channel is rated for up to 0.6A of continuous current with up to 8A peak. The device also comes integrated with an overcurrent monitor, temperature monitor and Power GOOD indicator. It uses analog control, with an adjustable hysteresis voltage, allowing precise control over the power-up sequence.

The LTC1643AHCGN#PBF has multiple applications in the field of PMIC. It can be used to ensure reliable, safe power-up sequencing for a wide range of applications, from basic micro-controller systems to complex DSP applications. Due to its dual-channel structure, the device can architect two isolated multi-rail power systems, offering maximum flexibility for powering different rails with different currents. The device is especially well-suited for use in micro-sensor networks and other applications that require the efficient and reliable management of power resources.

The LTC1643AHCGN#PBF incorporates a protection mechanism that monitors load current and temperature. The device provides an adjustable over-current threshold, programmable to trip at any level between 400 mA to 1.6A. The over-temperature threshold is non-adjustable and is set at 115°C. The device can also be configured to operate as a digital output Soft-Start/Power GOOD indicator.

The LTC1643AHCGN#PBF operates over a wide temperature range of -40°C to +125°C, allowing it to be used in a variety of extreme operating conditions. The device is available in a 20-pin LQFP package and comes with power- and ground-sense pins for direct connection to a power source, making it an ideal solution for space-constrained environments.

The LTC1643AHCGN#PBF is a versatile PMIC hot swap controller that offers an efficient and reliable way of powering up loads in a system. With its adjustable over-current threshold and wide operating temperature range, the device is an ideal choice for many applications.

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