AAT4644 4-Channel Current Limited Load Switch

The AAT4644 is a four-channel resettable fuse. It utilizes independent current-limited and thermally-protected P-channel MOSFETs to protect against short circuits. Current limit is factory programmed at 1A. Additional protection is provided with under-voltage lockout. The switches are turned off when the input voltage drops below a preset level. The quiescent supply current is typically 20μA. The AAT4644 is a flexible solution, allowing system designers to gang outputs together for lower RDS(ON) and higher current limit. The AAT4644 is available in a Pb-free, 8-pin TSSOP or SOP package and is specified over the -40°C to +85°C temperature range.

技术特性

500mA per Channel Steady State
4 x 1A Current Limit Trip Point
Over-Temperature Protection
Fast Transient Response:
1μs (Typ) Response to Short Circuit
100m Typical RDS(ON)
Under-Voltage Lockout
Temperature Range: -40°C to +85°C
8-Pin TSSOP or SOP Package

订购信息 Ordering Information

AAT4644

应用领域 APPLICATION

Desktop PCs
Peripheral Ports
USB Ports

AAT4644 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
AAT4644 数据资料DataSheet下载:pdf	Rev.V2	2 页