DS1236AS-5+

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Supervisors are power management ICs (PMICs) that protect electrical devices against voltage irregularities and overvoltage conditions. They monitor the power supply voltages and, in the event of an abnormality, shut down the supply to prevent damage to the device. One such supervisor is the DS1236AS-5+, which offers cost-effectiveness, system reliability, and ease of use.

The DS1236AS-5+ is a 2-pin single-channel supervisor designed to detect voltage irregularities, inrush current and overvoltage conditions. It features a 100 mV trip voltage, optional hysteresis, a power or ground-referenced trip point and active low RESET output. It includes an open-drain reset output and is available in a wide range of packages to fit users’ needs. The supervisor is characterized for operation over the industrial temperature range of -40°C to +125°C.

The DS1236AS-5+ is often used in power monitoring applications, where its primary function is to protect delicate circuitry against overvoltage conditions. It provides a precise, low-level protection threshold (100 mV) which is adjustable (with additional hysteresis) to protect against voltage spikes and dropouts.

The working principle of the DS1236AS-5+ is simple. The supervisor provides overvoltage protection by monitoring the voltage on the VCC and GND pins then comparing it to a precise 2.25V reference. When the monitored voltage exceeds this threshold, the RESET output is pulled low, which shuts down the power to the protected circuitry. In addition, the hysteresis within the supervisor limits the trip voltage to 100 mV above and below the nominal trip point, so that the protected circuitry can remain operational in light load conditions or when there are voltage spikes.

The DS1236AS-5+ can be used in a wide variety of applications including embedded systems, industrial equipment, and consumer electronics. It is especially useful in applications where low voltage thresholds and precise monitoring are essential, such as motor control applications.

The DS1236AS-5+ is a reliable and cost-effective solution for one of the most critical functions in power management – overvoltage protection. It is easily integrated into any system, offering a precise protection threshold, hysteresis and active low RESET output. Furthermore, it is available in a range of packages to fit users’ needs.

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