TLV803ZDBZR

The TLV803ZDBZR is a voltage supervisor integrated circuit (IC) manufactured by Texas Instruments. It is designed to monitor power supply voltages and provide a reset signal to microcontrollers and other digital devices when the supply voltage falls below a specified threshold. This is crucial for ensuring reliable operation in electronic systems, particularly in battery-powered applications or systems that require a stable power supply.

Key Features:

1. Voltage Monitoring: The TLV803 monitors supply voltages and can detect when the voltage drops below a predetermined threshold. This is essential for preventing erratic behavior in digital circuits due to insufficient voltage levels.

2. Reset Output: When the monitored voltage falls below the threshold, the TLV803 generates a reset signal. This output can be used to reset microcontrollers, ensuring that they start in a known state when power is restored.

3. Adjustable Threshold: The device typically offers a range of voltage thresholds, allowing designers to select the appropriate level for their specific application. This flexibility makes it suitable for various systems with different voltage requirements.

4. Low Power Consumption: The TLV803 is designed to operate with minimal power, making it ideal for battery-operated devices. Its low quiescent current helps extend battery life.

5. Compact Package: The TLV803ZDBZR comes in a small, surface-mount package (SOT-23), which is advantageous for space-constrained applications. This compact design allows for easy integration into printed circuit boards (PCBs).

6. Temperature Range: The device operates over a wide temperature range, making it suitable for use in various environmental conditions.

7. Fast Response Time: The reset output responds quickly to voltage changes, ensuring that the system can react promptly to power fluctuations.

Applications:

• Microcontroller Reset: Commonly used in microcontroller-based systems to ensure that the microcontroller starts correctly after power-up or when recovering from a brownout condition.
• Battery-Powered Devices: Ideal for portable electronics where power management is critical.
• Consumer Electronics: Used in devices like smartphones, tablets, and other consumer gadgets to maintain stable operation.
• Industrial Equipment: Employed in industrial control systems where reliable voltage monitoring is essential for safety and performance.

Electrical Characteristics:

• Supply Voltage Range: The TLV803 typically operates within a specified voltage range, which can vary based on the specific model.
• Reset Threshold Voltage: The reset threshold is a key parameter, and different variants of the TLV803 may offer different threshold levels.
• Output Type: The reset output is usually an active-low signal, meaning it goes low when a reset condition is triggered.

In summary, the TLV803ZDBZR from Texas Instruments is a versatile and reliable voltage supervisor IC that plays a critical role in ensuring the stability and reliability of electronic systems by monitoring supply voltages and providing reset functionality. Its low power consumption, adjustable thresholds, and compact design make it a popular choice among engineers for a wide range of applications.