TSM111CN

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	Multi-Voltage Supervisor
Number of Voltages Monitored:	3
Output:	--
Reset:	--
Reset Timeout:	100 ms Minimum
Voltage - Threshold:	4V, 6.1V, 14.2V
Operating Temperature:	0°C ~ 70°C (TA)
Mounting Type:	Through Hole
Package / Case:	20-DIP (0.300", 7.62mm)
Supplier Device Package:	20-DIP
Base Part Number:	TSM111

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PMIC - Supervisors: TSM111CN Application Field and Working Principle

The TSM111CN is a great example of programs in the PMIC - Supervisors category. It is a low-cost, high-performance, single-channel supply supervisor from Texas Instruments. It provides a powerful field programmability and is designed to support up to two supply rails while still providing an excellent protection against power supply or potential fault conditions.

Overview

The TSM111CN is a single-channel programmable supply supervisor that detects overvoltage, undervoltage, overcurrent, and overtemperature or fault conditions. It has a fixed reset assertion threshold, a threshold adjustable output, active-high or active-low reset output, and an integrated comparator and driver. The TSM111CN is compatible with both 1.8V and 5V logic levels, providing 2.625V standby voltage, and has an operation temperature range of -40°C to 85°C.

Application Field

The TSM111CN is ideal for many applications, including set-top box, printer, audio, video, automotive, and industrial applications due to the wide operating temperature range and adaptive resetting capability. It can also be used in malfunction detection applications, where it is used to quickly detect and halt the system when unintended supply conditions occur, ensuring that the user is not exposed to hazardous conditions. Additionally, it can be used to reduce system tolerance to supply and temperature variations, providing more reliable and robust operation.

Functional Description

The TSM111CN has two integrated comparators which monitor two supply rails, the input and output. The adjustable threshold comparator monitors converter voltage, and has an active high/low output. Additionally, the comparator has an external threshold voltage that can be programmed to detect an under or over voltage condition on the input rail. The second comparator is a fixed-threshold comparator which monitors an under/overvoltage condition on the output rail. The TSM111CN also has an integrated driver that is used to activate the reset output. When either of the comparators detect an under/overvoltage or fault condition on the input or output rail, the driver is activated to assert the reset output. On the other hand, if the voltage meets the correct setpoints, the reset output will be deasserted, allowing the system to start up or stay in operation.

Conclusion

The TSM111CN from Texas Instruments is a great example of programs in the PMIC - Supervisors category. It provides a powerful field programmability and is designed to support up to two supply rails while still providing an excellent protection against power supply or potential fault conditions. It is ideal for set-top box, printer, audio, video, automotive, and industrial applications due to the wide operating temperature range and resetting capability. With its two comparators and an integrated driver, the TSM111CN makes an excellent choice for a reliable and robust system.

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