TPS3305-18DR

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TPS3305-18DR

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IC SUPERVISOR 2 CHANNEL 8SOIC

  • HerstellerTexas Instruments

  • Herstellerteil #TPS3305-18DR

  • Auf Lager1672

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Attribut Wert
Part Status Active
Base Product Number TPS3305
DigiKey Programmable Not Verified
Type Multi-Voltage Supervisor
Voltage - Threshold 1.68V, 2.93V
Output Push-Pull, Totem Pole
Reset Active High/Active Low
Reset Timeout 140ms Minimum
Operating Temperature -40°C ~ 85°C (TJ)
Mounting Type Surface Mount
Package 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Packaging Bulk, Cut Tape (CT), Tape & Reel (TR)
Number of Voltages Monitored 2

Übersicht

Description

The TPS3305-18DR is a voltage supervisor integrated circuit from Texas Instruments, specifically designed to monitor power supplies in microcontroller and DSP systems. It ensures system reliability by supervising three independent supply voltages, typically used in mixed-voltage systems. The device is housed in an 8-pin SOIC package and features a precision reference and comparator circuit with hysteresis.
Key features include fixed threshold voltage levels to monitor 3.3V, 5V, and an adjustable third voltage, typically set for 1.8V systems. The TPS3305-18DR generates a reset signal for a microcontroller during power-up, power-down, and brownout conditions, with a typical reset delay time to ensure supply stability before system operation begins. It provides an active low reset output and an open-drain architecture, allowing for use with multiple devices.
The TPS3305-18DR is ideal for applications requiring precise voltage supervision, such as communication equipment, industrial controls, and consumer electronics, helping to prevent system errors due to supply voltage variations.

Equivalent

The TPS3305-18DR is a voltage supervisor IC by Texas Instruments. Equivalent products from other manufacturers include:
1. ADM1232 – by Analog Devices.
2. MCP1316 – by Microchip Technology.
3. MAX706 – by Maxim Integrated (now part of Analog Devices).
4. MIC2775 – by Microchip Technology.
5. STM690 – by STMicroelectronics.
These components offer similar functionalities like voltage monitoring and reset control. Always check the datasheets to ensure compatibility with your specific application requirements.

Features

The TPS3305-18DR is a supervisory circuit from Texas Instruments designed to monitor the supply voltage in microprocessor systems. Key features include:
1. Voltage Monitoring: It monitors three supply voltages, ensuring reliable operation by asserting a reset if any voltage drops below a specified threshold.

2. Reset Functionality: The device provides a RESET output signal when the monitored voltage drops below the threshold or during a power-up, ensuring that the microprocessor starts in a known state.
3. Watchdog Timer: The built-in watchdog timer enhances system reliability by resetting the microprocessor if it fails to toggle the watchdog input within a specified time interval.
4. Manual Reset Input: It includes an input for an external reset signal, allowing users to manually trigger a reset.
5. Low Supply Current: The device operates with low quiescent current, making it suitable for battery-powered applications.
6. Temperature Range: It operates over a wide temperature range, typically from -40°C to 85°C.
These features make the TPS3305-18DR suitable for ensuring reliable operation in a variety of microprocessor-based applications.

Pinout

The TPS3305-18DR is a voltage supervisor integrated circuit designed to monitor supply voltages in microcontroller systems. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. The primary function of the TPS3305-18DR is to ensure that the supply voltage remains within specified limits. If the voltage drops below a certain threshold, the device will assert a reset signal to maintain the microcontroller in a reset state until the voltage returns to an acceptable level. This helps prevent erratic operation of the microcontroller due to insufficient voltage levels. The TPS3305-18DR typically monitors three voltages, providing a reset output for each, making it suitable for systems with multiple voltage rails.

Manufacturer

The TPS3305-18DR is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are used in electronic devices. TI is one of the largest producers of analog technology components and is recognized for its contributions to the development of a wide range of electronic systems, including those for consumer electronics, automotive, industrial, and communications sectors. The company is known for its innovation in power management, microcontrollers, and sensors, among other areas.

Application

The TPS3305-18DR is a voltage supervisor IC primarily used in applications requiring reliable monitoring of supply voltages. Key application areas include microcontroller and microprocessor systems, automotive electronics, industrial control systems, and consumer electronics. Its role is to ensure system stability by monitoring supply voltages and initiating reset actions during undervoltage conditions, enhancing system reliability. The device's dual supply voltage monitoring capability makes it ideal for complex systems with multiple voltage rails, such as embedded systems, communication devices, and other applications where precise voltage supervision is critical for maintaining system integrity and preventing data corruption.

Package

The TPS3305-18DR is a voltage supervisor IC from Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. This type of package is compact, making it suitable for surface-mount applications.

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