TPS3305-33DR

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TPS3305-33DR

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IC SUPERVISOR 2 CHANNEL 8SOIC

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  • メーカー品番 #TPS3305-33DR

  • パッケージ SOIC (D)-8

  • 在庫状況5272

365 日間品質保証

7*24 日間の品質保証

90-時間単位のサービス保証

1日間のアフターサービス保証

仕様

属性
Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
Type Multi-Voltage Supervisor
NumberofVoltagesMonitored 2
Voltage-Threshold 2.93V, 4.55V
Output Push-Pull, Totem Pole
Reset Active High/Active Low
ResetTimeout 140ms Minimum
OperatingTemperature -40°C ~ 85°C (TJ)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

概要

Description

The TPS3305-33DR is a voltage supervisor IC (integrated circuit) manufactured by Texas Instruments. It is designed to monitor the supply voltage in microprocessor systems and initiate appropriate actions when the voltage falls below a specified threshold. The device ensures reliable operation by resetting the microprocessor during power-up, power-down, and brownout conditions.
Key features of the TPS3305-33DR include:
- Dual-voltage monitoring capability, typically for a primary 3.3V supply and a secondary adjustable or fixed voltage.
- A reset output to alert the microprocessor when the monitored voltage falls below the preset level.
- A precision voltage threshold with low tolerance for accurate monitoring.
- Built-in delay circuitry to ensure the reset signal duration is sufficient for proper system reset.
- Low power consumption, making it suitable for battery-powered devices.
- Surface-mount packaging for efficient PCB design.
The TPS3305-33DR is commonly used in applications such as computers, embedded systems, and any electronic devices requiring precise voltage supervision to ensure stability and prevent data corruption or system malfunction.

Equivalent

The TPS3305-33DR is a voltage supervisor with a watchdog timer by Texas Instruments. Equivalent products include:
1. MAX706 series by Maxim Integrated.
2. MCP1321T series by Microchip Technology.
3. ADM705 series by Analog Devices.
4. NCP303 series by ON Semiconductor.
These alternatives offer similar functions such as monitoring voltage levels and providing a reset signal. Always check the specific parameters and pin configurations to ensure compatibility with your application.

Features

The TPS3305-33DR is a voltage supervisor specifically designed to monitor system voltages. It features dual monitoring of two supply voltages, typically 3.3V and 5V, ensuring that both remain above preset threshold levels. Key features include:
1. Reset Functionality: It provides a reset signal to the microcontroller or system when the monitored voltages drop below the threshold, preventing malfunction.

2. Wide Supply Voltage Range: It operates from a supply voltage range of 1.8V to 6V, making it versatile for various applications.
3. High Accuracy: The device offers precise voltage monitoring with a typical accuracy of ±1.5%.
4. Low Supply Current: It consumes minimal current, aiding in power efficiency.
5. Manual Reset Input: The device includes a manual reset input, allowing for external control over the reset process.
6. Watchdog Timer: An integrated watchdog timer helps detect and reset the system in case of software malfunctions.
7. Small Package: It's available in a compact SOIC-8 package, ideal for space-constrained applications.
These features make the TPS3305-33DR suitable for safeguarding embedded systems and microcontroller-based applications.

Pinout

The TPS3305-33DR is a voltage supervisor IC manufactured by Texas Instruments. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. The primary function of this device is to monitor the supply voltage in microprocessor systems and issue reset signals when the voltage levels fall outside the specified thresholds.
Here's a concise breakdown of its pins and functions:
1. GND (Pin 1): Ground connection.
2. VDD (Pin 2): Supply voltage input.
3. MR (Pin 3): Manual reset input, active low.
4. WDI (Pin 4): Watchdog timer input.
5. NC (Pin 5): No connection (can be left floating or tied to ground).
6. RESET1 (Pin 6): Open-drain reset output for the 3.3V supply.
7. RESET2 (Pin 7): Open-drain reset output for an adjustable voltage threshold.
8. NC (Pin 8): No connection (similar to Pin 5).
The TPS3305-33DR ensures reliable operation by providing reset signals during power-up, power-down, and undervoltage conditions, as well as offering watchdog functionality to monitor microprocessor activity.

Manufacturer

The TPS3305-33DR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components. TI is particularly known for its development and manufacture of analog chips, embedded processors, and digital light processing (DLP) technology. The company serves various industries, including automotive, industrial, personal electronics, and communications equipment. Texas Instruments is recognized for its innovation and contributions to the electronics industry, providing solutions that enhance technologies across different sectors.

Application

The TPS3305-33DR is a supervisory circuit designed for monitoring and controlling the operational status of microcontroller and microprocessor systems. Its primary application areas include embedded systems, automotive electronics, industrial automation, and consumer electronics. It ensures system reliability by providing undervoltage monitoring and reset control, which are critical for preventing data corruption and ensuring proper system startup. The device is particularly useful in battery-powered applications due to its low power consumption. Additionally, it supports multiple voltage threshold options, making it versatile for various system requirements.

Package

The TPS3305-33DR is a supervisory circuit device from Texas Instruments, typically provided in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is designated by the "DR" suffix in its part number. This type of package is commonly used for surface-mount applications.

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