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AAT3526 Datasheet(PDF) 1 Page - Advanced Analogic Technologies |
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AAT3526 Datasheet(HTML) 1 Page - Advanced Analogic Technologies |
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1 / 10 page  AAT3526/7/8 MicroPower Supervisory Circuit with Manual Reset Typical Application *AAT3528 Only AAT3526 AAT3527 AAT3528 uP V MR CC V CC V CC RESET (RESET) GND GND RESET INPUT 100k (nominal) * 3526.2002.1.0.62 1 General Description The AAT3526/7/8 PowerManager™ products are members of AATI's Total Power Management IC™ (TPMIC™) product family. These microprocessor reset circuits are ideal for monitoring voltage sup- plies in portable systems, where extended battery life is critical. They provide a low cost, reliable solu- tion by eliminating external components. The AAT3526/7/8 products operate by monitoring the system power supply voltage. When the input volt- age drops below a fixed threshold, the device asserts a reset signal for a minimum of 150ms after V CC has risen back above the fixed threshold. They are guaranteed to operate down to 1.2V and designed to ignore fast line transients appearing on V CC. The AAT3526/7/8 series is available with three output stage versions: AAT3526 push-pull active low output, AAT3527 push-pull active high output and AAT3528 open drain active low output. The quiescent supply current is extremely low, typically 1µA, making this device ideal for portable battery operated equipment. The AAT3526/7/8 are available in a 4 pin SOT143 package and are specified over -40° to 85°C oper- ating temperature range. Features • 1.2V to 5.5V Input voltage range • Operation down to 1.2V • Extremely low quiescent current: less than 2µA • High accuracy detection threshold: ±1.5% • Monitor Power Supply Voltages • Fixed thresholds from 2.2V to 4.6V • Minimum 150ms reset pulse width with fast delay time <20µs • Debounced Manual Reset Input • Available output configurations: • Open-drain output • CMOS active high output • CMOS active low output • Temp range -40 to 85°C • 4 pin SOT143 package Applications • Notebook Computers • Cell Phones • Portable Electronics • Embedded Systems • Intelligent Instruments PowerManager™ |
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