AAT4631 High Power Adjustable Current Limited Load Switch with Fault Flag
The AAT4631/AAT4631-1 SmartSwitch are high power current limited P-channel MOSFET power switches designed for high side load switching applications. The switches operate with inputs ranging from 2.4V to 5.5V, making them ideal for both 3V and 5V systems. An integrated current-limiting circuit protects the input supply against large currents which may cause the supply to fall out of regulation. Reverse current blocking is provided to protect the load switch from reverse current potentials while the device is shutdown. The AAT4631/AAT4631-1 are also protected from thermal overload which is limited by power dissipation and junction temperatures. Current limit threshold of AAT4631 is programmed from 500mA to 3.1A with a resistor from SET to ground. The current limit threshold can also be removed to allow up to 3A continuous and 4A peak current to flow through the load switch by shorting the SET pin to ground (This function is the same as AAT4631). The ultra-fast current limit response to a sudden short circuit is a mere 1μs which reduces the requirements of local supply bypassing. An open drain fault flag (FLT) in AAT4631/AAT4631-1 signals an over-current or over-temperature condition after a 5ms blanking time to prevent false reporting. Quiescent current is a low 10μA and the supply current decreases to less than 1μA in shutdown mode. The AAT4631/AAT4631-1 are offered in the small Pb-free, 10-pin TDFN2222-10 package, and are specified for operation over the -40°C to +85°C ambient temperature range.
技术特性
订购信息 Ordering Information
|
应用领域 APPLICATION
AAT4631 典型应用
|
| 应用技术支持与电子电路设计开发资源下载 | 版本信息 | 大小 |
| AAT4631 数据资料DataSheet下载:pdf | Rev.V2 | 2 页 |
