Overview
The TLV803RDBZR, produced by Texas Instruments, is a part of the TLV8x3 family of supervisory circuits. These devices are designed to provide circuit initialization and timing supervision, primarily for DSPs (Digital Signal Processors) and processor-based systems. The TLV803RDBZR is functionally equivalent to the TLV853 and TLV863, with the TLV853 and TLV863 offering alternate pinouts. This component is crucial for ensuring proper system reset and monitoring supply voltage levels.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 3-Pin SOT-23 | |
| Supply Current | 9 µA (Typical) | µA |
| Threshold Voltage | 2.64 V (TLV803R) | V |
| Power-On Reset Delay Time | 200 ms (Typical) | ms |
| Temperature Range | –40°C to +125°C | °C |
| RESET Output | Open-Drain | |
| Supply Voltage Range | 1.1 V to 6 V | V |
| Output Leakage Current | 350 nA (Max at VDD = 6 V) | nA |
Key Features
- 3-Pin SOT23 Package: Compact and space-efficient design.
- Low Supply Current: Typical supply current of 9 µA, making it suitable for power-sensitive applications.
- Precision Supply Voltage Monitor: Monitors supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V with precise threshold voltages.
- Power-On Reset Generator: Generates a reset signal with a fixed delay time of 200 ms to ensure proper system initialization.
- Pin-for-Pin Compatible with MAX803: Easy replacement and compatibility with other supervisory circuits.
- Open-Drain RESET Output: Allows for flexible use in various system configurations.
- Wide Temperature Range: Operates over a temperature range of –40°C to +125°C.
- VDD Transient Rejection: Built-in rejection of fast transients on the VDD pin to prevent false resets.
Applications
- Factory Automation: Used in industrial control systems to ensure reliable operation.
- Portable and Battery-Powered Equipment: Suitable for low-power devices that require precise voltage monitoring.
- Set-Top Boxes: Ensures stable operation in consumer electronics.
- Servers: Used in server systems to monitor and manage power-on reset sequences.
- Appliances: Integrated into various household and commercial appliances for reliable power management.
- Electricity Meters: Utilized in smart metering systems for accurate voltage monitoring.
- Building Automation: Employed in building control systems to ensure consistent operation.
Q & A
- What is the primary function of the TLV803RDBZR?
The primary function is to provide circuit initialization and timing supervision, primarily for DSPs and processor-based systems.
- What is the typical supply current of the TLV803RDBZR?
The typical supply current is 9 µA.
- What are the available threshold voltages for the TLV803 family?
The available threshold voltages are 2.25 V, 2.64 V, 2.93 V, and 4.38 V.
- What is the delay time for the power-on reset generator?
The delay time is typically 200 ms.
- Is the TLV803RDBZR pin-for-pin compatible with other devices?
Yes, it is pin-for-pin compatible with the MAX803.
- What is the temperature range for the TLV803RDBZR?
The temperature range is –40°C to +125°C.
- What type of RESET output does the TLV803RDBZR have?
The RESET output is open-drain.
- How does the TLV803RDBZR handle VDD transients?
The device has built-in rejection of fast transients on the VDD pin to prevent false resets.
- What are some common applications for the TLV803RDBZR?
Common applications include factory automation, portable and battery-powered equipment, set-top boxes, servers, appliances, electricity meters, and building automation.
- What is the package type for the TLV803RDBZR?
The package type is 3-Pin SOT-23.
