TPS3702CX18DDCR

Overview

Category: Integrated Circuits (ICs)

Use: Voltage Supervisors

Characteristics: - Monitors undervoltage and overvoltage conditions - Provides a reset signal to the microcontroller or other system logic - Low quiescent current - Wide supply voltage range - Adjustable threshold voltage - Small package size

Package: SOT-23-6

Essence: The TPS3702CX18DDCR is an integrated circuit used for voltage supervision in electronic systems. It ensures that the supply voltage remains within specified limits, protecting sensitive components from damage.

Packaging/Quantity: The TPS3702CX18DDCR is available in a small SOT-23-6 package. It is typically sold in reels of 3000 units.

Specifications

• Supply Voltage Range: 1.8V to 6V
• Threshold Voltage Range: 0.4V to 5.5V
• Quiescent Current: 3µA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The TPS3702CX18DDCR has six pins arranged as follows:

```

---

| | --| VDD GND |-- Pin 1: Ground (GND) --| RESET OUT |-- Pin 2: Reset Output (RESET OUT) --| THRESHOLD |-- Pin 3: Threshold Input (THRESHOLD) --| VDD SUPP |-- Pin 4: Supply Voltage (VDD SUPP) --| OPEN NC|-- Pin 5: Not Connected (NC) --| OPEN NC|-- Pin 6: Not Connected (NC) |___________| ```

Functional Features

The TPS3702CX18DDCR offers the following functional features:

1. Voltage Monitoring: Monitors the supply voltage and generates a reset signal when it goes below or above the set threshold.
2. Adjustable Threshold: The threshold voltage can be adjusted using an external resistor divider network, allowing flexibility in setting the desired voltage limits.
3. Low Quiescent Current: The IC consumes very low current during operation, minimizing power consumption and extending battery life.
4. Wide Supply Voltage Range: Supports a wide range of supply voltages, making it suitable for various applications.
5. Reset Output: Provides a reset signal to the microcontroller or other system logic, ensuring proper initialization after a power-on or fault condition.

Advantages and Disadvantages

Advantages: - Accurate voltage monitoring - Adjustable threshold voltage - Low power consumption - Small package size - Wide supply voltage range

Disadvantages: - Limited number of pins for additional functionality - Requires external components for threshold adjustment

Working Principles

The TPS3702CX18DDCR operates by comparing the supply voltage with the internally set threshold voltage. When the supply voltage falls below the threshold, the reset output is activated, signaling a fault condition. Similarly, when the supply voltage exceeds the threshold, the reset output is triggered again. This ensures that the connected microcontroller or system logic is properly reset and initialized.

Detailed Application Field Plans

The TPS3702CX18DDCR finds applications in various fields where voltage supervision is critical. Some examples include:

1. Automotive Electronics: Used in automotive control units to monitor the vehicle's electrical system and ensure reliable operation.
2. Industrial Automation: Employed in industrial control systems to monitor power supplies and protect sensitive equipment from voltage fluctuations.
3. Consumer Electronics: Integrated into electronic devices such as smartphones, tablets, and gaming consoles to prevent damage caused by voltage variations.
4. Telecommunications: Used in telecom infrastructure equipment to monitor power supply voltages and ensure uninterrupted operation.

Detailed and Complete Alternative Models

1. TPS3702CX33DDCR: Similar to TPS3702CX18DDCR but with a higher threshold voltage range (3.3V to 6V).
2. TPS3702CX25DDCR: Similar to TPS3702CX18DDCR but with a higher threshold voltage range (2.5V to 6V).
3. TPS3702CX30DDCR: Similar to TPS3702CX18DDCR but with a higher threshold voltage range (3.0V to 6V).

These alternative models offer similar functionality but with different threshold voltage ranges, allowing for more flexibility in voltage monitoring applications.

In conclusion, the TPS3702CX18DDCR is an integrated circuit that provides voltage supervision and reset functionality in electronic systems. Its adjustable threshold voltage, low power consumption, and small package size make it suitable for various applications in automotive, industrial, consumer electronics, and telecommunications fields.