Overview
The TPS2420RSAR device from Texas Instruments is a highly integrated load protection solution designed for applications up to 20 volts. It features a maximum under-voltage (UV) turn-on threshold of 2.9 V, making it suitable for standard bus voltages as low as 3.3 V. The device protects loads by minimizing inrush current and safely shutting down in the event of a fault. It includes programmable fault current and hard current-limit thresholds, as well as a programmable fault timer. The TPS2420RSAR is packaged in a 16-pin, 4 mm × 4 mm QFN package and operates over a junction temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | VQFN (RSA) |
| Pins | 16 |
| Operating Temperature Range (°C) | –40 to 125 |
| Maximum Input Voltage (V) | 20 |
| Maximum Current Limit (A) | 5 |
| Typical ON-Resistance (mΩ) | 30 |
| Current Limit Accuracy | +/-20% |
| Fault Response | Auto Retry, Latch Off |
| UL Recognition | Yes (File Number E169910) |
| RoHS Compliance | Yes |
Key Features
- Integrated 30-mΩ Pass MOSFET
- Up to 20-V Bus Operation
- Programmable Fault Current and Hard Current-Limit
- Programmable Fault Timer
- Internal MOSFET Power Limiting Foldback
- Latching and Auto-Retry Operation
- Analog Current Monitor Output (IMON)
- Powergood Output (PG)
- Fault Output Indicator
- Thermal Shutdown Protection
- Under Voltage Lock Out (UVLO)
Applications
- RAID Arrays
- Telecommunications
- Plug-In Circuit Boards
- Disk Drives
- Solid-State Drives (SSDs)
- PCIe
- Fan Control
Q & A
- What is the maximum input voltage for the TPS2420RSAR?
The maximum input voltage for the TPS2420RSAR is 20 V.
- What is the typical ON-resistance of the TPS2420RSAR?
The typical ON-resistance of the TPS2420RSAR is 30 mΩ.
- What are the operating temperature ranges for the TPS2420RSAR?
The operating temperature range for the TPS2420RSAR is –40°C to 125°C.
- Does the TPS2420RSAR support programmable fault current and hard current-limit?
Yes, the TPS2420RSAR supports programmable fault current and hard current-limit.
- What types of fault responses are available for the TPS2420RSAR?
The TPS2420RSAR can be programmed for either auto-retry or latch-off fault responses.
- Does the TPS2420RSAR have an analog current monitor output?
Yes, the TPS2420RSAR has an analog current monitor output (IMON).
- Is the TPS2420RSAR RoHS compliant?
Yes, the TPS2420RSAR is RoHS compliant.
- What is the package type and size of the TPS2420RSAR?
The TPS2420RSAR is packaged in a 16-pin, 4 mm × 4 mm QFN package.
- Does the TPS2420RSAR have thermal shutdown protection?
Yes, the TPS2420RSAR includes thermal shutdown protection.
- What are some common applications for the TPS2420RSAR?
Common applications include RAID arrays, telecommunications, plug-in circuit boards, disk drives, SSDs, PCIe, and fan control.
