The TPS23521 is a high performance hot swap that enables high power telecom systems to comply with stringent transient requirements. The 200-V absolute maximum rating makes it easier to survive lightning surge tests (IEC61000-4-5). The soft start cap disconnect allows for the use of smaller hot swap FETs by limiting the inrush current, without hurting the transient response. The dual hot swap gate driver saves space and BOM cost in high power applications that require multiple hot swap FETs.The 400-µA sourcing current allows fast recovery, which helps to avoid system resets during lightning surge tests. The dual current limit makes it easier to pass brown outs and input steps such as required by the ATIS 0600315.2013. Finally, it offers accurate undervoltage and overvoltage protection with programmable thresholds and hysteresis.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TPS23521: –48-V High Performance Hot Swap Controller datasheet (Rev. A) | PDF | HTML | Dec 6, 2017 |
| White paper | Floating Ground Hot-Swap Architecture to Enable Robust Protection on 800V or ±400V DC Power Distribution | PDF | HTML | Mar 10, 2026 | |
| Application note | Output Voltage Clamping Using TPS23521 to Meet NEBS Compliance | PDF | HTML | Sep 3, 2024 | |
| Application note | Protecting Radio, Baseband and Active Antenna Systems with TPS2352x Hot Swaps | Jun 28, 2018 |
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| TSSOP (PW) | 16 | Ultra Librarian |
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