ADM6305 Datasheet | Analog Devices

FEATURES Adjustable input threshold voltage options: 0.4 V and 1.23 V Pretrimmed VCC threshold options (ADM6306) Increments between 2.5 V and 5 V Manual reset input (ADM6306) 4 factory programmed reset timeout delays 1 ms, 20 ms, 140 ms, and 1.12 sec (minimum) Reset output stage: active low, open drain Low power consumption: 5 µA typical Power supply glitch immunity 5-lead SOT-23 package Temperature range: - 40°C to +125°C APPLICATIONS Portable/battery operated equipment Microprocessor systems Multivoltage applications GENERAL DESCRIPTION The ADM6305/ADM6306 are dual voltage supervisors designed to monitor two supplies and provide a reset signal to DSP- and microprocessor-based systems. Low supply current and a small form factor make these devices suitable for portable and battery operated applications. If a monitored power supply voltage falls below the minimum voltage threshold, a single active low output asserts triggering a system reset. After all voltages rise above the selected threshold level, the reset signal remains low for the reset timeout period. Four reset timeout options are available. The ADM6305 monitors two supplies via two adjustable resistor-programmable undervoltage reset inputs. Both RST IN1 and RST IN2 have a reset threshold of either 0.4 V or 1.23 V depending on the particular model; that is, the RST IN1 and RST IN2 threshold of the ADM6305D3ARJZ-RL7 model is Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Multiple Input Programmable Supervisory ICs ADM6305/ADM6306 FUNCTIONAL BLOCK...