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TPS3809K33QDBVRQ1

Name: TPS3809K33QDBVRQ1
Rating: 4.7 (12 reviews)

IC SUPERVISOR 1 CHANNEL SOT23-3

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仕様

Part Status	Active
DigiKey Programmable	Not Verified
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	2.93V
Output	Push-Pull, Totem Pole
Reset	Active Low
Reset Timeout	120ms Minimum
Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SOT-23-3
Base Product Number	TPS3809
Grade	Automotive
Qualification	AEC-Q100

概要

Description

The TPS3809K33QDBVRQ1 is a voltage supervisory device designed for automotive applications. It monitors supply voltages and provides reset signals to ensure proper operation of microcontrollers and other digital components during power-up, power-down, and under voltage conditions. This device features a fixed reset threshold of 3.3V, making it suitable for various 3.3V systems.
Key features include a low supply current, adjustable reset delay, and an active-low output. It is housed in a small, space-saving package, which is crucial for automotive designs where PCB real estate is limited. The TPS3809K33QDBVRQ1 is qualified for automotive standards, ensuring reliability and performance in harsh environments.
Overall, it provides essential protection for critical electronic systems in vehicles, contributing to enhanced system robustness and reliability.

Features

The TPS3809K33QDBVRQ1 is a voltage supervisor from Texas Instruments designed for automotive applications. Key features include:
1. Voltage Monitoring: It monitors supply voltages with a precision threshold of 3.3 V.
2. Reset Output: Provides an active-low reset output, ensuring proper system initialization during power-up and power-down.
3. Low Supply Current: Consumes low quiescent current, enhancing battery life in automotive applications.
4. Wide Operating Voltage Range: Supports a broad input voltage range, making it suitable for various automotive environments.
5. Adjustable Time Delay: Includes an adjustable reset delay for system stabilization after power is restored.
6. Temperature Range: Qualified for automotive use, it operates across an extended temperature range from -40°C to +125°C.
7. Compact Package: Offered in a small QFN package for space-constrained designs.
Overall, the TPS3809K33QDBVRQ1 is ideal for ensuring reliable operation in automotive electronics by safeguarding against voltage fluctuations.

Package

The TPS3809K33QDBVRQ1 is packaged in a VSSOP (Very Thin Shrink Small Outline Package) with 8 pins. This compact package type allows for efficient use of board space while providing reliable performance in automotive applications.

Pinout

The TPS3809K33QDBVRQ1 is a voltage supervisor with a pin count of 5. Its primary function is to monitor system voltages and provide a reset signal when the voltage falls below a preset threshold. Specifically, it is designed to ensure that the system operates reliably by resetting the microcontroller or other digital logic in case of under-voltage conditions.
The pins and their functions are as follows:
1. VDD: Supply voltage input.
2. GND: Ground.
3. RESET: Active low output that indicates when the monitored voltage is below the threshold.
4. SENSE: Input for the monitored voltage.
5. SET: Input to set the threshold voltage level.
This device is particularly useful in automotive applications, providing robust performance in harsh environments.

Manufacturer

The TPS3809K33QDBVRQ1 is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, known for designing and manufacturing a wide range of analog and embedded processing chips. TI's products are used in various applications, including automotive, industrial, consumer electronics, and communications. The company has a strong focus on innovation and provides solutions for power management, signal processing, and microcontrollers. Texas Instruments has a long-standing reputation in the semiconductor industry, contributing to advancements in technology and electronics.

Application

The TPS3809K33QDBVRQ1 is a voltage supervisor designed for automotive applications. It is used for monitoring power supplies in systems such as automotive control modules, battery management systems, and safety-critical applications. Its key features include a precise voltage monitoring, low quiescent current, and the ability to withstand harsh automotive environments, making it suitable for applications requiring reliable voltage supervision and system reset functions.

Equivalent

The TPS3809K33QDBVRQ1 is a voltage supervisor from Texas Instruments. Equivalent products include the TPS3808K33QDBVRQ1, TPS3820K33QDBVRQ1, and the MAX809 series from Maxim Integrated. For exact replacements, check specifications such as reset voltage, threshold levels, and package types to ensure compatibility.