STM690SDS6F Integrated Circuits (ICs)

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The STM690SDS6F is a precision voltage detector which is designed to supervise microprocessor core voltage and power supply. It is available in through-hole SOT-23, SC-70 and SOT-223 packages. The STM690SDS6F is able to monitor either a supply voltage (VCC) or an external reference voltage (VREF) as part of a power supply supervisor circuit.

The STM690SDS6F provides a low-power precision voltage detector with an adjustable +1% (max) threshold (VTH). The STM690SDS6F also provides a very low current to the output when compared to other products in the same product family. With an operating temperature range of -40 to +125°C, the STM690SDS6F can be used in a wide range of applications.

Applications for the STM690SDS6F include power supply supervisors, reset generation and emergency-off circuits. It is also suitable for battery cell protectors, telephone line current limiters, DC-DC converter supervisors, warning and safety systems, LED flash controllers, and LED nightlights.

The STM690SDS6F utilizes an integrated voltage reference to detect a voltage that is above or below a preset threshold. It incorporates an open-drain reset output transistor, along with an adjustable voltage comparator which senses an over-voltage or under-voltage condition. During power-up and power-down, the output is driven low by the transistor.

To adjust the threshold voltage, an external resistor connected between the VTH pin and GND is used. By varying the resistance between the VTH pin and GND, a voltage threshold can be set. The device also has an internal hysteresis voltage of 0.6V. The hysteresis voltage limits the number of transitions between active-high and active-low of the output transistor.

The STM690SDS6F features an over-voltage lockout (OVL) pin which can be used to override the threshold voltage limit. This pin can be pulled high, effectively disabling the voltage detection circuit. The OVL pin can be used to set the voltage threshold in order to prevent powering up or powering down of the monitored circuit. The STM690SDS6F also includes an enable pin (EN/DIS) which is used to disable the device, pulling down the output pin.

The STM690SDS6F is designed to operate on a wide range of supply voltages, from 1.1V to 6V. The maximum operating current is typically 12μA. The device is protected against reverse voltage and electrostatic discharge (ESD) up to 4KV (HBM).

The STM690SDS6F is a popular choice for designers due to its high accuracy and low power consumption. It is ideal for applications where the voltage signals need to be monitored and controlled in a reliable, safe and efficient way. The STM690SDS6F is a cost-effective solution for applications that require a precision voltage detector with a range of adjustable voltage thresholds.

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