The PT7M6142NLTA3E is a voltage detector (also known as a voltage supervisor or reset IC) manufactured by Pericom Semiconductor, now Diodes Incorporated. It's designed to monitor the supply voltage of a system and generate a reset signal when the voltage falls below a certain threshold. This ensures that the system starts up or recovers properly after a voltage drop, preventing unpredictable behavior.

Applications:

• Microcontroller-based systems: Monitoring the supply voltage of microcontrollers to ensure proper operation.
• FPGA and DSP systems: Protecting FPGAs and DSPs from voltage fluctuations.
• Memory systems: Preventing data corruption in memory devices during power-up or power-down.
• Real-time clocks (RTCs): Ensuring the RTC continues to operate correctly during voltage drops.
• Power management circuits: Generating reset signals for power management ICs.

Features:

• Precise Voltage Detection: Accurately monitors the supply voltage.
• Adjustable Reset Threshold: Allows the user to set the voltage level at which the reset signal is asserted.
• Open-Drain Output: Provides a flexible output that can be connected to various logic circuits.
• Low Quiescent Current: Minimizes power consumption.
• Small Package Size: Allows for compact circuit designs.
• Built-in Hysteresis: Prevents unwanted reset signals due to noise.

Benefits:

• Improved System Reliability: Prevents system malfunctions due to voltage drops.
• Simplified Design: Integrated features simplify the design process and reduce component count.
• Enhanced System Performance: Ensures that the system starts up or recovers properly after a voltage drop.
• Reduced Power Consumption: Low quiescent current minimizes power drain.
• Cost-Effective Solution: Provides a cost-effective solution for voltage monitoring and reset generation.

Additional Details:

The PT7M6142NLTA3E operates with a specific supply voltage range and has a specified reset threshold voltage. The reset timeout period also influences its usage. Refer to the Diodes Incorporated datasheet for detailed specifications, including reset threshold accuracy, reset timeout period, and operating temperature range. The device is available in a small surface-mount package.