Micropower Precision Triple Supply Monitor Guaranteed over High Temperatures for Automotive Applications
The LTC1728 offers a tight 1.5% threshold accuracy over which reset can occur, decreasing the overall voltage margin required for reliable system operation. This, along with power supply glitch filtering, a feature shared by Linear Technology's entire family of dual, triple, quad, hex and octal supply monitors, ensures predictable reset operation without false triggering. Whenever one of the three monitored voltages falls below its threshold, a common open-drain reset output asserts and remains low until all three supplies are in compliance for at least 200ms.
Summary of Features: LTC1728H-5
- Monitors Three Inputs Simultaneously: 5V, 3.3V & ADJ
- Guaranteed Threshold Accuracy: ±1.5%
- Very Low Supply Current: 10uA (typ)
- 200ms Reset Delay Time
- Active Low RESET Output
- Power Supply Glitch Immunity
- Automotive Temperature Range: -40°C to 125°C
- 5-Lead SOT-23 Package
LINEAR TECHNOLOGY GmbH
Linear Technology Corporation, a manufacturer of high performance linear integrated circuits, was founded in 1981, became a public company in 1986 and joined the S&P 500 index of major public companies in 2000. Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, uModule(TM) products, and many other analog functions. Applications for Linear Technology's high performance circuits include telecommunications, cellular telephones, networking products such as optical switches, notebook and desktop computers, computer peripherals, video/multimedia, industrial instrumentation, security monitoring devices, high-end consumer products such as digital cameras and MP3 players, complex medical devices, automotive electronics, factory automation, process control, and military and space systems. For more information, visit www.linear.com.
LT, LTC, LTM, Burst Mode and are registered trademarks and uModule is a trademark of Linear Technology Corp. All other trademarks are the property of their respective owners.
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