TPS2049D

产品概述

The TPS2049D is a Power Distribution Switch intended for applications where heavy capacitive loads and short circuits are likely to be encountered. This device incorporates a 600mR N-channel MOSFET power switch for power-distribution systems that require only one power distribution path. The switch is controlled by a logic enable input. 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 device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OC) logic output low.

• 100mA Continuous current
• Thermal and short-circuit protection
• 0.6ms Typical rise time
• Undervoltage lockout
• Deglitched fault report (OC)
• 43µA Quiescent supply current
• 1µA Maximum standby supply current

应用

电源管理