LTC2917HDDB-B1#TRMPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Multi-Voltage Supervisor
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	150 ms Minimum
Voltage - Threshold:	27 Selectable Threshold Combinations
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	10-WFDFN Exposed Pad
Supplier Device Package:	10-DFN (3x2)
Base Part Number:	LTC2917

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Introduction to PMIC-Supervisors

Power Management Integrated Circuit (PMIC) is one type of integrated circuit used to manage the power distribution in an electronic device. PMIC-Supervisors are an important part of PMIC, they are responsible for controlling the voltage and current levels in order to ensure the reliable operation of the device.

LTC2917HDDB-B1#TRMPBF

The LTC2917HDDB-B1#TRMPBF is a dual-supervisor IC that consists of two independent supervisors for monitoring two independent power supplies. It provides programmable setpoints for overvoltage (OV), undervoltage (UV) and overloaded (OL) protection for both supplies.

Application Field and Working Principle

The LTC2917HDDB-B1#TRMPBF is a great choice for applications such as computer motherboards, ATX power supplies, notebook computers and related peripherals. It is especially useful for systems that require a maximum device power within an operating range.The LTC2917HDDB-B1#TRMPBF uses a voltage divider to monitor each supply voltage, and then compares it to the programmed setpoints. An NV RAM stores the state of the voltage level. The supervisor then outputs a high-level active-low signal which indicates the occurrence of an overvoltage, undervoltage or overloaded condition.The device also has an Overloaded Sense Monitor (OLS), which evaluates the overloaded conditions of the power sources according to their current limiting. The OLS will output a low-level active-low signal when the power source reaches its current limit.The LTC2917HDDB-B1#TRMPBF employs additional features such as a Clock Control pin that allows the user to control the clock period, a Select Pin that allows the user to select which supervisor is active, and a Reset Pin that will reset the whole circuit in case of a failure.In order to make sure the device is functioning as intended, the user can monitor the status of the supervisor through its open-collector Status pin. This will allow users to match the supervisor\'s state to their respective voltage and current conditions.Finally, the LTC2917HDDB-B1#TRMPBF has an internal Reset Generator that can generate a reset pulse in case of an overvoltage, undervoltage or overloaded condition before it reaches the internal programmed thresholds. All of these features make the LTC2917HDDB-B1#TRMPBF a great choice for applications that require precise voltage and current control.

Conclusion

The LTC2917HDDB-B1#TRMPBF is a great choice for applications that require precise voltage and current management. It provides programmable setpoints and features such as a Clock Control pin, a Select Pin and a Reset Generator. This makes the LTC2917HDDB-B1#TRMPBF ideally suited for computer motherboards, ATX power supplies and other related applications.

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