AAT3522 Datasheet | Advanced Analogic Technologies

Power Manager TM PRODUCT DATASHEET AAT3520/2/4 Micro Power TM Microprocessor Reset Circuit General Description The AAT3520 series of Power Manager products is part of Analogic Tech’s Total Power Management IC™ (TPMIC™) product family. These microprocessor reset circuits are ideal for monitoring voltage supplies in portable systems, where extended battery life is critical. They provide a low-cost, reliable solution by eliminating the need for external ponents. The AAT3520 series operates by monitoring the system power supply voltage. When the input voltage drops below a fixed threshold, the device asserts a reset signal for a fixed time period after VCC has risen back above the fixed threshold; 30ms and 150ms minimum periods are available. The AAT3520 product series is guaranteed to operate down to 1.2V and is designed to ignore fast line transients appearing on VCC. The AAT3520 series is available with three output stage versions: AAT3520 push-pull active high output; AAT3522 push-pull active low output; and AAT3524 open drain active low output. The quiescent supply current is extremely low, typically 1μA, making it ideal for portable battery-operated equipment. The AAT3520/2/4 are available in a Pb-free, 3-pin SOT23 package and are specified over the -40°C to +85°C operating temperature range. Features - Input Voltage Range: 1.2V to 5.5V - Operation Down to 1.2V - Extremely Low Quiescent Current: <2μA - High Accuracy Detection Threshold: ±1.5% - Monitor Power Supply Voltages - Fixed Thresholds from 2.2V to 4.6V - -Reset Pulse Width Options - Minimum 30ms or 150ms or 300ms - Fast Propagation Delay <20μs - Available Output Configurations: - Open-Drain Output - CMOS Active High Output - CMOS Active Low Output - Temperature Range: -40°C to +85°C - 3-Pin SOT23 Package - 4k V ESD Rating Applications - Cell Phones - Embedded Systems - Intelligent Instruments - Notebook puters - Portable...