TPS23523

Product Folder Order Now Technical Documents Tools & Software Support & Community TPS23523 SLVSDF9A – DECEMBER 2017 – REVISED JANUARY 2019 TPS23523: –48-V Hot Swap and Single OR-ing Controller 1 Features 1 –10-V to –80-V DC Operation, –200-V Absolute Maximum Soft Start Cap Disconnect Dual Hot Swap Gate Drive 400-µA Gate Sourcing Current Dual Current Limit (based on VDS) – 25 mV ±4% When Low VDS – 3 mV ±25% When High VDS Programmable UV(±1.5%) and OV (±2%) – Programmable Hysteresis (±11%) Integrated OR-ing Controller – Regulation: 25 mV ±15 mV – Fast Turn off: –6 mV ±4 mV Retries After Time Out 16-Pin TSSOP 2 Applications Remote Radio Units Baseband Units Routers and Switchers Small Cells –48-V Telecommunications Infrastructure 3 Description The TPS23523 is an integrated hot swap and OR-ing controller 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 requi...