TPS3808G01MDBVTEP

Overview

Category: Integrated Circuits (ICs)

Use: Voltage Supervisors

Characteristics: - Monitors voltage levels and provides a reset signal when the voltage falls below a specified threshold - Low-power consumption - Wide operating voltage range - Adjustable reset threshold - Programmable delay time - Small package size

Package: SOT-23-6

Essence: The TPS3808G01MDBVTEP is a voltage supervisor IC that ensures proper system operation by monitoring the voltage levels and generating a reset signal when the voltage falls below a specified threshold.

Packaging/Quantity: The TPS3808G01MDBVTEP is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Reset Threshold Voltage Options: 2.32V, 2.93V, 3.08V, 4.38V, or adjustable
• Reset Timeout Period Options: 20ms, 140ms, 1120ms, or adjustable
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)
• Power-On Reset Delay Time: 20ms (typical)

Pin Configuration

The TPS3808G01MDBVTEP has the following pin configuration:

```

---

| | --| RESET | --| GND | --| MR | --| VDD | --| VIT | |___________| ```

• RESET: Output reset signal
• GND: Ground
• MR: Manual reset input
• VDD: Supply voltage
• VIT: Voltage input

Functional Features

1. Voltage Monitoring: The TPS3808G01MDBVTEP continuously monitors the voltage level at the VIT pin.
2. Reset Generation: When the voltage falls below the specified threshold, the IC generates a reset signal on the RESET pin.
3. Adjustable Threshold and Timeout: The reset threshold voltage and timeout period can be adjusted according to the application requirements.
4. Low Power Consumption: The IC operates with low quiescent current, making it suitable for battery-powered applications.
5. Small Package Size: The SOT-23-6 package offers a compact form factor, ideal for space-constrained designs.

Advantages and Disadvantages

Advantages: - Accurate voltage monitoring - Adjustable threshold and timeout settings - Low power consumption - Small package size

Disadvantages: - Limited number of available reset threshold options - Manual reset input may require additional external components for implementation

Working Principles

The TPS3808G01MDBVTEP works by comparing the voltage at the VIT pin with the programmed threshold voltage. If the voltage falls below the threshold, the IC generates a reset signal on the RESET pin. The reset signal remains active until the voltage rises above the threshold or a timeout period elapses.

The adjustable threshold and timeout settings allow customization based on specific system requirements. The low quiescent current ensures minimal power consumption, making it suitable for battery-powered applications.

Application Field Plans

The TPS3808G01MDBVTEP is commonly used in various electronic systems where reliable voltage monitoring and reset generation are critical. Some potential application fields include:

1. Microcontrollers and Microprocessors: Ensuring proper system initialization and preventing erratic behavior during power-up or voltage fluctuations.
2. Embedded Systems: Providing a reset signal to restart the system in case of power supply issues or software errors.
3. Industrial Control Systems: Monitoring voltage levels in control circuits to maintain stable operation and prevent damage to sensitive components.
4. Automotive Electronics: Ensuring reliable operation of critical systems by monitoring voltage levels and generating resets when necessary.
5. Battery-Powered Devices: Preventing excessive discharge of batteries by initiating a reset when the voltage drops below a safe threshold.

Alternative Models

1. TPS3808G33MDBVTEP: Similar to TPS3808G01MDBVTEP but with a fixed reset threshold voltage of 3.08V.
2. TPS3808G33DBVR: SOT-23-5 package variant with a fixed reset threshold voltage of 3.08V.
3. TPS3808G33DCKR: SC-70-5 package variant with a fixed reset threshold voltage of 3.08V.
4. TPS3808G33DRVT: SOT-23-6 package variant with a fixed reset threshold voltage of 3.08V and adjustable timeout period.

These alternative models offer similar