AP22652A数据手册集成电路（IC）的配电开关负载驱动器规格书PDF

描述 Description

The AP22652 and AP22653 are single channel precision adjustable current-limited switches optimized for applications that require precision current limiting, or to provide up to 2.1A of continuous load current during heavy loads/short circuits. These devices offer a programmable current-limit threshold between 125mA and 2665mA (typ) via an external resistor. Current limit accuracy ±10% can be achieved at high current-limit settings. The rise and fall times are controlled to minimize current surges during turn on/off.

The devices have fast short-circuit response time for improved overall system robustness. They provide a complete protection solution for applications subject to heavy capacitive loads and the prospect of short circuit, offering reverse current blocking and limiting, over-current, over-temperature and short-circuit protection, as well as controlled rise time and under-voltage lockout functionality. A 6ms deglitch capability on the open-drain Flag output prevents false over-current reporting and does not require any external components.

The AP22652 and AP22653 limit the output current to a safe level when the output current exceeds current-limit threshold.

特性 Features

•Up to 2.1A Maximum Load Current
•Accurate Adjustable Current Limit, 125mA to 2665mA
•±7% Accurate Adjustable Current Limit, 1.735A with RLIM = 15kΩ
•Constant-Current (AP22652, AP22653) During Over-Current
•Fast Short-Circuit Response Time: 5µs (Typ.)

应用 Application

• Set-Top Boxes

• LCD TVs & Monitors

• Residential Gateways

• Laptops, Desktops, Servers, e-Readers, Printers, Docking Stations, HUBs