Overview
The TPS3840PL25DBVR is a high-performance, nanopower, high-input voltage supervisor IC produced by Texas Instruments. This device is designed to ensure stable operation in various electronic systems by monitoring the supply voltage and providing a reset signal when the voltage falls below a specified threshold. The TPS3840PL25DBVR features a push-pull, active-low output and is packaged in a compact SOT-23-5 package, making it suitable for space-constrained applications.
Key Specifications
| Specification | Value |
|---|---|
| Part Number | TPS3840PL25DBVR |
| Manufacturer | Texas Instruments |
| Package | SOT-23 (DBV)-5 |
| Description | Supervisory Circuits, Push-Pull, Active-Low, 2.5V Output |
| Threshold Voltage (typ) | 2.5V |
| Reset Threshold Accuracy (%) | 1.5% |
| Quiescent Current (Iq) (typ) | 300 nA |
| Output Driver Type/Reset Output | Push-Pull, Active-Low |
| Reset Time Delay | 50 µs to 6.2 s (with external capacitor) |
| Supply Voltage (min/max) | 1.5V / 10V |
| Operating Temperature Range | -40°C to 125°C |
| Manual Reset Capability | Yes, active-low manual reset |
Key Features
- Nanopower supply current: 300 nA (typ), 700 nA (max)
- Fixed threshold voltage from 1.6V to 4.9V in 0.1V steps
- Built-in hysteresis for voltage stability
- Programmable reset time delay using an external capacitor
- Active-low manual reset capability
- Push-pull output topology for active-low reset signal
- Wide operating temperature range: -40°C to 125°C
Applications
- Grid infrastructure: circuit breakers, smart meters, monitoring and protection equipment
- Factory automation: field transmitters, PLCs
- Building automation: fire safety, smoke detectors, HVAC systems
- Electronic point of sale systems
- Portable and battery-powered devices
Q & A
- What is the primary function of the TPS3840PL25DBVR?
The primary function is to monitor the supply voltage and provide a reset signal if the voltage falls below a specified threshold. - What is the package type of the TPS3840PL25DBVR?
The package type is SOT-23 (DBV)-5. - What is the typical quiescent current of the TPS3840PL25DBVR?
The typical quiescent current is 300 nA. - Can the reset time delay be adjusted?
Yes, the reset time delay can be adjusted using an external capacitor. - What is the operating temperature range of the TPS3840PL25DBVR?
The operating temperature range is -40°C to 125°C. - Does the TPS3840PL25DBVR support manual reset?
Yes, it supports active-low manual reset. - What are the typical applications of the TPS3840PL25DBVR?
Typical applications include grid infrastructure, factory automation, building automation, and portable devices. - What is the supply voltage range for the TPS3840PL25DBVR?
The supply voltage range is from 1.5V to 10V. - What is the threshold voltage accuracy of the TPS3840PL25DBVR?
The threshold voltage accuracy is 1.5%. - How does the TPS3840PL25DBVR handle voltage hysteresis?
The device has built-in hysteresis to ensure voltage stability.
