TPS2041D

TEXAS INSTRUMENTS  TPS2041D  电源分配开关, 高压侧, 低电平有效, 1路输出, 5.5V, 0.9A, SOIC-8

The is a Power Distribution Switch intended for applications where heavy capacitive loads and short circuits are likely to be encountered. The TPS2041 is 135mR N-channel MOSFET high-side power switches. Each switch is controlled by a logic enable that is compatible with 5V and 3V logic. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7V. When the output load exceeds the current-limit threshold or a short is present, the TPS2041 limit the output current to a safe level by switching into a constant-current mode, pulling the overcurrent OC logic output low. When continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage.

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500mA Continuous current

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Short-circuit and thermal protection with overcurrent logic output

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10µA Maximum standby supply current

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Logic-level enable input

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2.5ms Typical rise time

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Undervoltage lockout

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Bidirectional switch