TPS3805H33DCKR

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TPS3805H33DCKR

IC SUPERVISOR 2 CHANNEL SC70-5

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Thông số kỹ thuật

Part Status Active
DigiKey Programmable Not Verified
Type Multi-Voltage Supervisor
Number of Voltages Monitored 2
Voltage - Threshold 3.05V, Adj
Output Push-Pull, Totem Pole
Reset Active Low
Reset Timeout 5µs Typical Propagation Delay
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 5-TSSOP, SC-70-5, SOT-353
Supplier Device Package SC-70-5
Base Product Number TPS3805

Tổng quan

Description

The TPS3805H33DCKR is a voltage supervisor from Texas Instruments designed to monitor power supply voltage levels in various applications. It features a fixed threshold of 3.3V, which makes it suitable for systems requiring stable voltage regulation. The device provides a delay function to prevent false triggering during power-up or down events.
Key features include a low quiescent current, making it energy-efficient for battery-powered devices, and an open-drain output that can interface with various logic levels. It typically operates over a wide temperature range and is available in a small SOT-23 package, allowing for space-saving designs in compact electronics.
The TPS3805H33DCKR is commonly used in microcontroller and FPGA applications, ensuring reliable operation by resetting the system during undervoltage conditions. Its versatility and robustness make it an essential component in power management systems across consumer electronics, industrial, and automotive applications.

Features

The TPS3805H33DCKR is a voltage supervisor designed by Texas Instruments. Key features include:
1. Voltage Monitoring: It monitors supply voltages and detects when they fall below a preset threshold of 3.3V, making it suitable for digital circuits.
2. Active Low Output: The output goes low when the monitored voltage drops below the threshold, providing a clear alert for system monitoring.
3. Low Quiescent Current: It offers low power consumption, ideal for battery-operated devices.
4. Wide Supply Voltage Range: Operates within a supply range of 1.0V to 5.5V.
5. Fast Response Time: Ensures quick response to voltage changes, enhancing system reliability.
6. Compact Package: Available in a small 5-pin SOT-23 package, facilitating space-saving designs.
7. Temperature Range: Operates over an extended temperature range from -40°C to +125°C, suitable for various applications.
This device is commonly used in power management for microcontrollers, FPGAs, and other digital systems to enhance their reliability.

Package

The TPS3805H33DCKR is packaged in a tiny, lead-free, and environmentally friendly WSON (Wafer Level Chip Scale Package) with a 5 mm x 6 mm footprint. It features a 3.3V voltage supervisor function, designed for space-efficient applications.

Pinout

The TPS3805H33DCKR is a voltage supervisor from Texas Instruments with a total of 5 pins. Here’s a brief overview of its functions:
1. Pin 1 (VDD): Supply voltage input (operating range from 1.4V to 5.5V).
2. Pin 2 (GND): Ground reference.
3. Pin 3 (RESET): Active-low reset output that indicates when the monitored voltage is below the threshold; it goes low when VDD drops below the set threshold (3.3V for this variant).
4. Pin 4 (VITR): Input for the voltage threshold selection (it can also be connected to a resistor divider for custom thresholds).
5. Pin 5 (SENSE): Voltage sense input that monitors the VDD level.
The TPS3805H33DCKR is typically used in systems requiring reliable voltage supervision to avoid improper operation during power-down or brownout conditions.

Manufacturer

The TPS3805H33DCKR is manufactured by Texas Instruments (TI), a global semiconductor company. Founded in 1930 and headquartered in Dallas, Texas, Texas Instruments specializes in the design and production of a wide range of electronic components, including analog ICs, embedded processors, and digital signal processors. The company is well-known for its innovation in the electronics industry, providing products used in various applications such as automotive, industrial, and consumer electronics. Texas Instruments is particularly recognized for its development of calculators and advanced semiconductor technologies, positioning itself as a leader in the field.

Application

The TPS3805H33DCKR is a voltage supervisor used primarily in microcontroller and processor applications. It monitors supply voltage levels, providing reset signals to ensure proper system initialization and operation. Common application areas include consumer electronics, automotive systems, industrial controls, and telecommunications, where reliable voltage monitoring and fault detection are critical for system stability and performance.

Equivalent

The TPS3805H33DCKR is a voltage supervisor with a 3.3V threshold. Equivalent products include:
1. TPS3805G33DCKR - Similar functionality with a 3.3V threshold.
2. TPS3701G33DCKR - Offers similar supervisory features.
3. MAX809 - A voltage supervisor with comparable specs.
4. LM393 - A dual comparator that can be configured for similar functions.
Always check the specific parameters for compatibility.

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