LM809M3-2.93

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LM809M3-2.93

IC SUPERVISOR 1 CHANNEL SOT23-3

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Thông số kỹ thuật

Part Status Obsolete
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 140ms Minimum
Operating Temperature -40°C ~ 105°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 LM809

Tổng quan

Description

The LM809M3-2.93 is a precision voltage supervisor and reset IC designed to monitor power supply voltages in various electronic systems. It features a fixed reset threshold voltage of 2.93V, which triggers a reset signal when the supply voltage falls below this level. This ensures that microcontrollers and other critical components are reset properly during power fluctuations, preventing potential malfunctions.
Key features of the LM809M3-2.93 include a low supply current, a short reset delay time, and a robust temperature range, making it suitable for a variety of applications such as consumer electronics, automotive systems, and industrial equipment. The device is available in a compact SOT-23 package, facilitating easy integration into circuit designs. Overall, the LM809M3-2.93 is an essential component for enhancing system reliability by ensuring safe operation during voltage variations.

Features

The LM809M3-2.93 is a low-dropout (LDO) voltage regulator designed to provide a stable output voltage of 2.93V. Key features include:
1. Output Current: Capable of delivering up to 10 mA of output current.
2. Low Dropout Voltage: Ensures efficient operation with a low dropout of around 0.2V at the maximum load, allowing it to operate effectively with supply voltages close to the output voltage.
3. Temperature Range: Operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for various applications.
4. Low Quiescent Current: Offers low quiescent current consumption, enhancing battery life in portable devices.
5. Stability: Designed for stability with various output capacitors, ensuring reliable performance across different load conditions.
6. Protection Features: Includes thermal shutdown and current limiting for added safety and reliability.
These features make the LM809M3-2.93 ideal for use in battery-powered devices, portable electronics, and other applications requiring efficient voltage regulation.

Package

The LM809M3-2.93 is typically available in a SOT-23 package type. This small, surface-mount package is suitable for various applications, providing efficient space utilization on printed circuit boards.

Pinout

The LM809M3-2.93 is a voltage supervisor with a pin count of 3. It is designed to monitor supply voltages and provide a reset signal for microcontrollers and other digital devices.
Pin Functions:
1. VDD (Pin 1): Supply voltage input. This pin connects to the power supply that the device is monitoring.
2. GND (Pin 2): Ground connection. This pin is connected to the circuit ground.
3. RESET (Pin 3): Reset output. This pin provides a reset signal, which is active low, when the monitored voltage drops below the preset threshold.
The LM809M3-2.93 specifically has a reset threshold of 2.93V, making it suitable for low-voltage applications.

Manufacturer

The LM809M3-2.93 is manufactured by Texas Instruments (TI), a prominent multinational technology company. Founded in 1930, Texas Instruments is known for its development and production of semiconductors and various integrated circuits. The company specializes in analog electronics, embedded processors, and digital signal processors (DSPs), serving a wide range of sectors including automotive, industrial, communications, and consumer electronics. TI is recognized for its innovation and engineering excellence in the field of electronics, making it a key player in the semiconductor industry.

Application

The LM809M3-2.93 is a low-dropout voltage regulator primarily used in applications requiring stable voltage output. Common areas include battery-powered devices, portable electronics, microcontrollers, and embedded systems. Its features make it suitable for noise-sensitive applications, providing voltage regulation in telecommunications, automotive electronics, and consumer appliances where space and efficiency are critical.

Equivalent

The LM809M3-2.93 is a low-dropout (LDO) voltage regulator. Equivalent products include:
1. MCP1700 (Microchip)
2. LP2950 (Texas Instruments)
3. MIC5205 (Microchip)
4. TPS7A47 (Texas Instruments)
5. LD1117 (STMicroelectronics)
Make sure to verify specifications like output voltage, current rating, and dropout voltage to ensure compatibility.

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