S-817B55AY-Z2-U

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The S-817B55AY-Z2-U is a single-channel high-side power switch of the Sanken Electric Linear type PMIC. Linear type PMICs are usually implemented in systems with low or no noise requirements and/or where small signal control is used. In such systems, the linear electronic parts can provide a low-distortion signal, while being easily and well-controlled.

The S-817B55AY-Z2-U is a high-side power switch that contains an N-channel power MOSFET that operates from 5.5V to 55V and is capable of switching 15A up to 150V. It features an on/off current-limited adaptive control which can auto-recover from over-current and short-circuit conditions. It also features thermal shutdown protection and an open-drain output for easy control. The S-817B55AY-Z2-U also offers logic-level gate drive capability and low on-resistance.

The S-817B55AY-Z2-U operates through a combination of a high-side N-channel power MOSFET, gate driver, over-current protection and thermal shut-down circuit. The MOSFET is voltage controlled and the gate driver circuitry is protected by a dedicated thermal limit. It is designed to provide a positive adjustable current limit and thermal shut-down circuit which can protect against overload and over-temperature conditions. It also offers logic input level gate drive, low on-resistance and wide range of gate drive current. The maximum turn on and turn off current of the S-817B55AY-Z2-U is typically 1.2A and 0.3A respectively.

The S-817B55AY-Z2-U has a number of applications including, but not limited to, various DC/DC power converters, automotive, industrial and embedded systems. It is suitable for high-side switching in applications such as, automotive systems, power off switches, ON/OFF switches, motor control and systems with high noise requirements.

The S-817B55AY-Z2-U can also be used in digital power amplifiers, server power supply units and high voltage circuits. The device provides high power dissipation and can operate over a wide temperature range and can operate in an environment where high switching frequencies are required.

In conclusion, the S-817B55AY-Z2-U is a single-channel high-side power switch of the Sanken Electric Linear PMIC and offers various features such as over-current and thermal protection, on/off current-limited adaptive control and a low on-resistance which makes it well suited for a variety of applications including automotive, industrial and embedded systems.

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