Overview
The TPS2400DBVR, produced by Texas Instruments, is a 5.5-V overvoltage protection controller designed to protect sensitive electronics from destructive voltage spikes and surges. This device is particularly suited for automotive environments where large voltage transients, such as load dump events, can occur. The TPS2400 works in conjunction with an external N-channel MOSFET to isolate the load from the power supply when potentially damaging voltage levels are detected, ensuring the load remains safe.
The device features internal circuitry including a trimmed band-gap reference, oscillator, Zener diode, charge pump, comparator, and control logic. This configuration enables fast response times and the ability to survive extended overvoltage events.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Overvoltage Protection | Up to 100 | V |
| Overvoltage Shutdown Threshold | 6.9 | V |
| Undervoltage Shutdown Threshold | 3 | V |
| Overvoltage Turnoff Time | µs | |
| External N-Channel MOSFET Drive | Internal Charge Pump | |
| Maximum Static Supply Current | 1 | mA |
| Package Type | 5-Pin SOT–23 | |
| Ambient Temperature Range | –40°C to 85°C | |
| Electrostatic Discharge Protection | 2.5-kV Human-Body-Model, 500-V CDM |
Key Features
- Fast overvoltage turnoff time of less than 1 µs to protect against voltage spikes and surges.
- Internal charge pump to drive the gate of an external N-channel MOSFET.
- Trimmed band-gap reference, oscillator, Zener diode, comparator, and control logic for precise voltage monitoring and control.
- Low maximum static supply current of 1 mA to minimize power consumption.
- Compact 5-Pin SOT–23 package for space-efficient designs.
- Wide ambient temperature range of –40°C to 85°C, making it suitable for various environmental conditions.
- Robust electrostatic discharge protection with 2.5-kV Human-Body-Model and 500-V CDM ratings.
Applications
- Automotive systems: Protects against load dump events and other voltage transients common in automotive environments.
- Cellular phones and PDAs: Ensures protection against overvoltage conditions that could damage sensitive electronics.
- Portable PCs and media players: Provides reliable overvoltage protection in mobile devices.
- Digital cameras and GPS devices: Safeguards these devices from voltage spikes and surges.
- Appliance power supplies: Protects against overvoltage events in various consumer appliances.
Q & A
- What is the primary function of the TPS2400DBVR?
The primary function of the TPS2400DBVR is to protect sensitive electronics from destructive voltage spikes and surges by disconnecting the load from the power supply when potentially damaging voltage levels are detected.
- What type of MOSFET does the TPS2400DBVR work with?
The TPS2400DBVR works with an external N-channel MOSFET, which is driven by an internal charge pump.
- What is the overvoltage shutdown threshold of the TPS2400DBVR?
The overvoltage shutdown threshold of the TPS2400DBVR is 6.9 V.
- What is the undervoltage shutdown threshold of the TPS2400DBVR?
The undervoltage shutdown threshold of the TPS2400DBVR is 3 V.
- How quickly does the TPS2400DBVR respond to overvoltage conditions?
The TPS2400DBVR responds to overvoltage conditions in less than 1 µs.
- What is the maximum static supply current of the TPS2400DBVR?
The maximum static supply current of the TPS2400DBVR is 1 mA.
- In what package is the TPS2400DBVR available?
The TPS2400DBVR is available in a 5-Pin SOT–23 package.
- What is the ambient temperature range for the TPS2400DBVR?
The ambient temperature range for the TPS2400DBVR is –40°C to 85°C.
- What level of electrostatic discharge protection does the TPS2400DBVR offer?
The TPS2400DBVR offers 2.5-kV Human-Body-Model and 500-V CDM electrostatic discharge protection.
- In which applications is the TPS2400DBVR commonly used?
The TPS2400DBVR is commonly used in automotive systems, cellular phones, PDAs, portable PCs, media players, digital cameras, GPS devices, and appliance power supplies.
