TPS3839G33DBZR

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TPS3839G33DBZR

IC SUPERVISOR 1 CHANNEL SOT23-3

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Thông số kỹ thuật

Part Status Active
Base Product Number TPS3839
DigiKey Programmable Not Verified
Type Simple Reset/Power-On Reset
Voltage - Threshold 3.08V
Output Push-Pull, Totem Pole
Reset Active Low
Reset Timeout 120ms Minimum
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package TO-236-3, SC-59, SOT-23-3
Supplier Device Package SOT-23-3
Packaging Cut Tape (CT), Tape & Reel (TR)
Number of Voltages Monitored 1

Tổng quan

Description

The TPS3839G33DBZR is a voltage supervisor or reset IC manufactured by Texas Instruments. It is designed to monitor the supply voltage in microcontroller and digital systems to ensure that they are operating within the desired voltage range. When the monitored voltage level falls below a specified threshold, the TPS3839G33DBZR generates a reset signal to prevent improper system operation.
Key features of the TPS3839G33DBZR include:
1. Threshold Voltage: It typically monitors a voltage threshold of 3.3 V.
2. Low Supply Current: The device is energy efficient, consuming very low current during operation.
3. Precision Monitoring: Offers accurate voltage monitoring for reliable performance.
4. Push-Pull Output: The device includes a push-pull active-low output for the reset signal.
5. Small Package: Available in a small SOT-23 package which saves space on the PCB.
This IC is commonly used in battery-powered applications, personal electronics, and other systems requiring reliable power monitoring for safe and robust operation.

Features

The TPS3839G33DBZR is a microprocessor supervisory circuit designed to monitor the power supply voltage in microprocessors and digital systems. Key features include:
1. Voltage Monitoring: Monitors 3.3V supply voltage with an accuracy of ±2%.
2. Active Low Reset Output: Provides a reset signal when the monitored voltage falls below the threshold.
3. Manual Reset Input: Allows for external reset control.
4. Low Supply Current: Features ultra-low supply current consumption of typically 9 µA, enhancing power efficiency.
5. Precision Threshold: Offers precise voltage detection threshold options to ensure reliable system operation.
6. Fast Response: Provides a quick reset assertion after voltage drop, minimizing the risk of system hang-ups.
7. Small Package Size: Available in a compact SOT-23 package, making it suitable for space-constrained applications.
8. Wide Temperature Range: Operates effectively within a temperature range of -40°C to +85°C.
These features make the TPS3839G33DBZR an ideal choice for maintaining reliable system startup and operation in battery-powered and portable applications.

Package

The TPS3839G33DBZR is a voltage supervisor IC from Texas Instruments, and it comes in a SOT-23-3 package, which is a small outline transistor package with three pins.

Pinout

The TPS3839G33DBZR is a voltage supervisor IC from Texas Instruments. It is specifically designed for monitoring the supply voltage in microcontroller and DSP systems. The device has a 3-pin configuration.
The functions of these pins are as follows:
1. VDD: This is the power supply pin, where the input voltage is applied. It is the voltage that the TPS3839G33DBZR monitors.
2. GND: This pin is the ground reference for the device.
3. RESET: This active-low output pin goes low when VDD falls below the threshold voltage, indicating that the monitored voltage is insufficient. It remains low until VDD returns above the threshold and the reset delay time passes, ensuring that the system starts up properly after a brownout condition or power-up.
The TPS3839G33DBZR is typically used to ensure that electronic systems operate within safe voltage levels, preventing erratic system behavior during undervoltage conditions.

Manufacturer

The TPS3839G33DBZR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components and integrated circuits. They serve various industries, including automotive, industrial, personal electronics, and communications equipment. TI is known for its innovation in analog and embedded processing products, and its components are used in a multitude of electronic applications worldwide.

Application

The TPS3839G33DBZR is a voltage supervisor or reset IC commonly used in applications requiring reliable power monitoring and system reset. It is ideal for microcontrollers, digital signal processors (DSPs), and other digital systems that require precise voltage monitoring to ensure proper operation. Key application areas include consumer electronics, industrial systems, embedded systems, automotive electronics, and portable devices, where it helps in preventing system malfunctions due to power supply fluctuations by providing accurate reset signals when voltage thresholds are crossed.

Equivalent

The TPS3839G33DBZR is a voltage supervisor with a threshold of 3.3V. Equivalent products include:
1. Microchip MCP1316-33: Offers similar voltage monitoring and reset functionality.
2. ON Semiconductor NCP300LSN33T1G: Provides equivalent voltage supervision features.
3. Analog Devices ADM8320: Another alternative for voltage monitoring with similar specs.
When selecting a replacement, ensure comparable voltage thresholds, reset timeout periods, and package compatibility.

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