TPS389015QDSERQ1

Product Overview

Category

The TPS389015QDSERQ1 belongs to the category of integrated circuits (ICs) and specifically falls under the voltage supervisors or monitors.

Use

This product is primarily used for monitoring and supervising the voltage levels in electronic systems. It ensures that the voltage remains within a specified range, triggering appropriate actions when it goes beyond the set limits.

Characteristics

• Voltage monitoring: The TPS389015QDSERQ1 can monitor voltages ranging from 0.4V to 5.5V.
• Low power consumption: It operates with low quiescent current, making it suitable for battery-powered applications.
• Wide temperature range: The device can function reliably across a wide temperature range, typically from -40°C to 125°C.
• Adjustable threshold: The voltage threshold for triggering an alert or action can be adjusted using external resistors.
• Reset output options: The device provides both active-low and active-high reset outputs.

Package and Quantity

The TPS389015QDSERQ1 is available in a small surface-mount package, such as a 6-pin SOT-23. It is typically sold in reels containing a specific quantity, usually around 3000 units per reel.

Specifications

• Supply voltage range: 0.4V to 5.5V
• Quiescent current: 2.5µA (typical)
• Threshold voltage accuracy: ±1.5%
• Reset timeout period: 200ms (typical)
• Operating temperature range: -40°C to 125°C

Pin Configuration

The TPS389015QDSERQ1 has six pins arranged as follows:

```

---

| | --| VDD GND |-- Pin 1: Ground (GND) --| RESET VDD |-- Pin 2: Supply Voltage (VDD) --| MR NC |-- Pin 3: Master Reset (MR) --| GND NC |-- Pin 4: Ground (GND) --| GND NC |-- Pin 5: Ground (GND) --| RST NC |-- Pin 6: Reset Output (RST) |___________| ```

Functional Features

• Undervoltage detection: The TPS389015QDSERQ1 can detect when the supply voltage falls below a specified threshold.
• Reset generation: Upon detecting an undervoltage condition, the device generates a reset signal to initiate system recovery or shutdown.
• Adjustable threshold: The voltage threshold for triggering a reset can be adjusted using external resistors.
• Power-on reset: The device provides a power-on reset function, ensuring proper initialization of the system during power-up.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various systems.
• Low quiescent current minimizes power consumption, making it suitable for battery-powered applications.
• Adjustable threshold enables flexibility in voltage monitoring.
• Small package size facilitates space-constrained designs.

Disadvantages

• Limited to voltage monitoring and reset generation functionality.
• Requires external resistors for threshold adjustment.

Working Principles

The TPS389015QDSERQ1 operates by continuously monitoring the supply voltage. When the voltage falls below the set threshold, the device triggers a reset signal. This reset signal can be used to initiate system recovery or perform other necessary actions. The threshold voltage can be adjusted using external resistors, allowing customization based on specific application requirements.

Application Field Plans

The TPS389015QDSERQ1 finds applications in various electronic systems where voltage monitoring and reset generation are critical. Some potential application fields include:

1. Battery-powered devices: Ensuring proper operation and preventing damage due to undervoltage conditions in portable electronics, such as smartphones, tablets, and wearables.
2. Industrial control systems: Monitoring voltage levels in industrial equipment to prevent malfunctions or shutdowns caused by power supply issues.
3. Automotive electronics: Safeguarding automotive systems from voltage fluctuations, ensuring reliable operation of critical components.

Alternative Models

For users seeking alternative options, the following models provide similar functionality to the TPS389015QDSERQ1:

1. TPS3808G01: This IC offers adjustable voltage monitoring and reset generation capabilities with a wide operating voltage range.
2. MAX809: A series of voltage supervisors providing various threshold options and package sizes.
3. ADM6315: Voltage monitor IC with adjustable threshold and low power consumption.

These alternative models can be considered based on specific requirements and compatibility with the target application.

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