Overview
The TLV803SDBZT is a 3-pin voltage supervisor IC produced by Texas Instruments, designed to provide circuit initialization and timing supervision primarily for DSPs and processor-based systems. This device is part of the TLV8x3 family, which includes functionally equivalent variants such as the TLV853 and TLV863, with the TLV803E being a pin-to-pin alternative. The TLV803SDBZT monitors the supply voltage and generates a power-on reset with a fixed delay time of 200 ms to ensure proper system reset.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 3-Pin SOT-23 | |
| Supply Current | 9 µA (Typical) | µA |
| Supply Voltage Range | 2.5 V, 3 V, 3.3 V, 5 V | V |
| Power-On Reset Delay Time | 200 ms | ms |
| Temperature Range | –40°C to +125°C | °C |
| RESET Output Type | Open-Drain, Active-Low | |
| Power-Up Reset Voltage | 1.1 V | V |
| Threshold Voltage (VIT) | 2.87 V to 2.99 V (for TLV803S) | V |
Key Features
- 3-Pin SOT23 Package for compact design
- Low Supply Current: 9 µA (Typical)
- Precision Supply Voltage Monitoring for 2.5 V, 3 V, 3.3 V, and 5 V
- Power-On Reset Generator with a fixed delay time of 200 ms
- Pin-for-Pin Compatible with MAX803
- Open-Drain, Active-Low RESET Output
- Operating Temperature Range: –40°C to +125°C
Applications
- Factory Automation
- Portable and Battery-Powered Equipment
- Set-Top Boxes
- Servers
- Appliances
- Electricity Meters
- Building Automation
Q & A
- What is the primary function of the TLV803SDBZT?
The primary function of the TLV803SDBZT is to provide circuit initialization and timing supervision, primarily for DSPs and processor-based systems.
- What is the package type of the TLV803SDBZT?
The TLV803SDBZT is available in a 3-pin SOT-23 package.
- What are the supported supply voltages for the TLV803SDBZT?
The TLV803SDBZT supports supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V.
- What is the power-on reset delay time of the TLV803SDBZT?
The power-on reset delay time of the TLV803SDBZT is 200 ms.
- What is the temperature range for the TLV803SDBZT?
The TLV803SDBZT operates over a temperature range of –40°C to +125°C.
- What type of RESET output does the TLV803SDBZT have?
The TLV803SDBZT has an open-drain, active-low RESET output.
- Is the TLV803SDBZT compatible with other devices?
Yes, the TLV803SDBZT is pin-for-pin compatible with the MAX803.
- What is the typical supply current of the TLV803SDBZT?
The typical supply current of the TLV803SDBZT is 9 µA.
- What are some common applications of the TLV803SDBZT?
Common applications include factory automation, portable and battery-powered equipment, set-top boxes, servers, appliances, electricity meters, and building automation.
- How does the TLV803SDBZT handle power-up reset?
The TLV803SDBZT asserts the RESET output when the supply voltage exceeds 1.1 V and keeps it active until the supply voltage exceeds the threshold voltage (VIT), after which a 200 ms delay occurs before the output returns to the inactive state.
- What is the threshold voltage (VIT) for the TLV803SDBZT?
The threshold voltage (VIT) for the TLV803SDBZT is between 2.87 V and 2.99 V.
