TPS3705-33DR

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TPS3705-33DR

IC SUPERVISOR 1 CHANNEL 8SOIC

  • Fabricante
  • Mfr. Parte #TPS3705-33DR
  • Paquete SOIC-8
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  • En stock6723

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Especificaciones

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
Type Simple Reset/Power-On Reset
NumberofVoltagesMonitored 1
Voltage-Threshold 2.93V
Output Push-Pull, Totem Pole
Reset Active Low
ResetTimeout 140ms Minimum
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Descripción general

Description

The TPS3705-33DR is a supervisory circuit manufactured by Texas Instruments designed for monitoring and controlling microcontroller and microprocessor systems. It primarily provides power supply supervision and battery management functionalities. The device ensures that the system operates correctly by monitoring the supply voltage and asserting a reset signal when the monitored voltage falls below a specified threshold, preventing erratic operation of the microcontroller.
Key features include:
1. Voltage Monitoring: It monitors multiple supply voltages and ensures they stay within a specified range.
2. Reset Functionality: The device generates a reset signal if the supply voltage drops below a set level, which aids in safe system startup and shutdown.
3. Watchdog Timer: It includes a watchdog timer to detect and reset the microcontroller in case of software anomalies.
4. Battery Backup: It supports systems with battery backup, providing an integrated solution for both main and backup power sources.
5. Compact Package: The DR suffix indicates that the device comes in a small outline package, making it suitable for space-constrained applications.
Overall, the TPS3705-33DR is ideal for applications requiring reliable power monitoring and reset management, enhancing system stability and performance.

Features

The TPS3705-33DR is a voltage supervisor IC designed to monitor voltage levels in electronic systems. Key features include:
1. Voltage Monitoring: It supervises the system's supply voltage to ensure it remains within a specified range, typically for 3.3V systems.
2. Reset Output: The device provides a reset signal to the microcontroller or processor when the voltage drops below a preset threshold, ensuring proper startup and operation.
3. Dual Voltage Detection: It supports the monitoring of two separate voltage levels, providing an extra layer of protection and flexibility in system design.
4. Watchdog Timer: The integrated watchdog timer can reset the system if it fails to respond within a set timeframe, improving system reliability.
5. Manual Reset Input: The device includes a manual reset pin, allowing external control to initiate a reset sequence.
6. Adjustable Reset Delay: The reset delay can be adjusted, giving designers flexibility in meeting specific system requirements.
7. Temperature Range: It operates over a wide temperature range, enhancing its suitability for various industrial and consumer applications.
8. Package Type: Available in a small, SOIC-8 package which is suitable for space-constrained applications.
The TPS3705-33DR is ideal for systems requiring reliable voltage supervision and reset functionality.

Package

The TPS3705-33DR is a dual-voltage processor supervisor with manual reset. Its package type is "SOIC-8," which stands for Small Outline Integrated Circuit with 8 pins.

Pinout

The TPS3705-33DR is an IC (integrated circuit) designed for supervisory applications. It is a dual-voltage microprocessor supervisory circuit that monitors the supply voltage and provides a reset signal when necessary. The device is typically used to ensure reliable operation in microprocessor-based systems.
The TPS3705-33DR comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin functions:
1. VDD: Power supply pin.
2. GND: Ground connection.
3. MR (Manual Reset Input): Active low input that can be used to manually trigger a reset.
4. RESET: Active low reset output that indicates when the monitored voltage falls below the threshold.
5. RESET: Active high reset output, complementary to the active low RESET.
6. WDI (Watchdog Input): Monitors a pulse for system activity; if not toggled within a set time, it triggers a reset.
7. CT (Timing Capacitor): Sets the watchdog timer period with an external capacitor.
8. NC (No Connection): Reserved pin that is not internally connected.
These features make the TPS3705-33DR suitable for maintaining system integrity by supervising voltage levels and providing necessary reset control.

Manufacturer

The TPS3705-33DR is manufactured by Texas Instruments. Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. The company is one of the top semiconductor companies in the world and is known for its development of analog chips and embedded processors, which are essential components in a wide array of electronic devices. Texas Instruments is headquartered in Dallas, Texas, and is recognized for its innovation in the semiconductor industry and a broad portfolio of products that serve diverse markets, including automotive, industrial, personal electronics, communications equipment, and enterprise systems.

Application

The TPS3705-33DR is a voltage supervisor and reset IC designed for monitoring microprocessor power supplies. Its application areas include power supply monitoring in embedded systems, ensuring reliable microcontroller and microprocessor operation, and providing reset functions in telecommunications, automotive systems, industrial equipment, and consumer electronics. It helps ensure systems operate within specified voltage limits and initiates reset processes to protect against data corruption or system crashes due to power anomalies.

Equivalent

The TPS3705-33DR is a voltage supervisor with a watchdog timer. Equivalent products include:
1. MAX706 series by Maxim Integrated: Offers similar voltage monitoring and reset features.
2. ADM705 by Analog Devices: Provides voltage supervision and watchdog timer functions.
3. MCP1320/1321 by Microchip Technology: Offers supervisory and monitoring functions for microcontrollers.
4. STM706 series by STMicroelectronics: Provides similar reset and monitoring capabilities.
Always verify specifications and pin compatibility before substituting to ensure full compatibility with your application.

Envío

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Referencia de tarifas de envío (DHL/FedEx):

DHL: El costo de envío oscila entre $25-$45 (0.5kg), con un tiempo de entrega estimado de 2-5 días hábiles.

FedEx: El costo de envío oscila entre $25-$40 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.

UPS: El costo de envío oscila entre $25-$45 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.

TNT: El costo de envío oscila entre $25-$65 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.

EMS: El costo de envío oscila entre $30-$50 (0.5kg), con un plazo de entrega estimado de 7-15 días hábiles.

Correo aéreo registrado: El costo de envío es de $2-$4 (0.1kg), con un tiempo de entrega estimado de 5-20 días hábiles.

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