G525A中文资料USB High-Side Power Switch Advance Information数据手册GMT规格书

描述 Description

General Description
The G525A is an integrated high-side power switch optimized for self-powered and bus-powered Universal Serial Bus (USB) applications.
The G525A satisfies the USB standards. The switch's low on-resistance meets USB voltage drop requirements. When the output load exceeds current-limit threshold, G525A switches into constant mode and limit the output current to a safe level, which is typically 1.4A, well below the UL 25VA safety requirements. An open-drain flag output is also available to indicate fault conditions to the local USB controller. Soft start eliminates the momentary voltage drop on the upstream port that may occur when the switch is enabled in bus-powered applications.

特性 Features

■ Typical 110mΩ, Low MOSFET on resistance, at 5.0V
■ 1A minimum continuous load current
■ 3.0V to 5.5V operating range
■ 100 µA typical on-state supply current
■ 1 µA typical standby supply current
■ Output can be forced higher than input when operating in off state.
■ 1.4A Typical current limit
■ Thermal shutdown protection
■ 2.4V typical under-voltage lockout (UVLO)
■ Open-drain fault flag pin
■ Slow turn-on (soft-start) and fast turnoff
■ Logic level enable pin, available with active high or active-low version
■ UL Approved_#E232223Applications
■ High-side power protection switch
■ USB power management
■ USB host and self-powered hubs
■ USB Bus-powered hubs
■ Hot plug-in power supplies
■ Battery-charger circuits