CAT1027WI-30-GT3

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Multi-Voltage Supervisor
Number of Voltages Monitored:	2
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	130 ms Minimum
Voltage - Threshold:	3V, Adj
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	CAT1027

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Introduction to CAT1027WI-30-GT3

CAT1027WI-30-GT3 is a Supervisor IC designed for circuit monitoring in automotive and industrial applications. It is manufactured by Texas Instruments Incorporated (TI) and is used to provide protection against excessive current or overheating. The CAT1027WI-30-GT3 combines current sensing, voltage monitoring and temperature assurance in a tiny 4-pin package.

Application Field of CAT1027WI-30-GT3

The CAT1027WI-30-GT3 is suitable for a wide variety of automotive and industrial applications, including electric vehicle chargers, point-of-load (POL) regulators, AC/DC converters, LED drivers, motor controllers and LED displays. It is also designed for use in off-board charging applications, such as portable battery backups and emergency power supplies.

Working Principle of CAT1027WI-30-GT3

The CAT1027WI-30-GT3 is a current-limited controller that operates by monitoring both the current and voltage of the circuit. It has an onboard temperature monitoring system that is calibrated to shut the circuit off if the temperature threshold is exceeded. It also has an internal limiter that is used to limit the maximum current that can flow through the circuit. When activated, the current-limit threshold is selected using an internal reference voltage, which can be adjusted using an external resistor. When the current reaches its limit, the CAT1027WI-30-GT3 will disable the supply to the circuit, preventing it from being damaged by excessive current. Similarly, when the temperature sensor is triggered, the IC will shut the circuit off to prevent further damage.

Conclusion

The CAT1027WI-30-GT3 is a highly reliable and compact Supervisor IC designed for circuit monitoring in automotive and industrial applications. Its current sensing, voltage monitoring and temperature assurance features make it suitable for a wide range of applications, such as electric vehicle chargers, point-of-load regulators, AC/DC converters and LED drivers. Its internal limiter and temperature monitor provide protection against excessive current and overheating.

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