TPS3707-50DRG4

Overview

Product Category

The TPS3707-50DRG4 belongs to the category of integrated circuits (ICs) and specifically falls under the family of voltage supervisors.

Use

This product is primarily used for monitoring and supervising voltage levels in electronic systems. It ensures that the voltage remains within a specified range, triggering appropriate actions when thresholds are exceeded.

Characteristics

• Voltage supervision range: The TPS3707-50DRG4 operates within a voltage range of 0.5V to 5.5V.
• Low quiescent current: It consumes minimal power during operation, making it suitable for battery-powered applications.
• Adjustable threshold levels: The device allows users to set precise voltage thresholds based on their specific requirements.
• Wide temperature range: It can operate reliably across a wide temperature range, typically from -40°C to 125°C.

Package and Quantity

The TPS3707-50DRG4 is available in a small outline package (SOT-23-6). Each package contains one unit of the IC.

Specifications

• Supply voltage range: 1.8V to 5.5V
• Quiescent current: 2µA (typical)
• Threshold accuracy: ±1.5%
• Power-on reset delay time: 20ms (typical)
• Operating temperature range: -40°C to 125°C

Pin Configuration

The TPS3707-50DRG4 features a six-pin SOT-23 package with the following pin configuration:

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| | | 1 2 | | | | 3 4 | | | | 5 6 | |___________| ```

Pin Description: 1. GND: Ground connection 2. VDD: Supply voltage input 3. RESET: Active-low reset output 4. THRESH: Threshold setting pin 5. MR: Manual reset input 6. NC: No connection

Functional Features

Voltage Monitoring

The TPS3707-50DRG4 continuously monitors the voltage level at the THRESH pin. If the voltage falls below the programmed threshold, the RESET pin is asserted low, indicating a voltage fault condition.

Power-On Reset

Upon power-up, the device ensures a stable reset signal is generated for a specified delay time (typically 20ms). This allows the system to initialize properly before normal operation begins.

Manual Reset

The MR pin provides an option for manual reset. When this pin is pulled low, it forces the RESET pin to assert low, regardless of the voltage level at the THRESH pin.

Advantages and Disadvantages

Advantages

• Wide operating voltage range enables compatibility with various systems.
• Low quiescent current consumption prolongs battery life in portable devices.
• Adjustable threshold levels offer flexibility for different voltage monitoring requirements.
• Small package size facilitates space-constrained designs.

Disadvantages

• Limited number of pins may restrict additional functionality integration.
• Lack of built-in hysteresis may result in potential oscillations near the threshold voltage.

Working Principles

The TPS3707-50DRG4 operates based on a voltage comparator circuit. It compares the voltage at the THRESH pin with the internally set threshold voltage. If the monitored voltage drops below the threshold, the RESET pin is activated, triggering a reset signal. The device utilizes an internal reference voltage and a precise voltage divider network to achieve accurate voltage monitoring.

Application Field Plans

The TPS3707-50DRG4 finds applications in various fields, including: 1. Battery-powered devices: It ensures proper voltage monitoring and system reset in portable electronics, such as smartphones, tablets, and wearables. 2. Industrial automation: The IC can be used to monitor power supply voltages in control systems, ensuring reliable operation and preventing damage due to voltage fluctuations. 3. Automotive electronics: It plays a crucial role in monitoring critical voltage levels in automotive systems, providing protection against undervoltage conditions.

Alternative Models

Several alternative models with similar functionality are available in the market. Some notable alternatives to the TPS3707-50DRG4 include: - MAX823: Voltage supervisor IC from Maxim Integrated. - ADM708: Precision voltage monitor from Analog Devices. - MCP100: Reset generator from Microchip Technology.

These alternative models offer comparable features and can be considered based on specific application requirements.

In conclusion, the TPS3707-50DRG4 is an integrated circuit voltage supervisor that provides accurate voltage monitoring and reset functionality. Its wide operating range, low power consumption, and adjustable threshold levels make it suitable for various applications in different industries.