TPS23525 (ACTIVE)

TPS2352x -48 V High Performance Hot Swap and ORing Controller

 

Description

The TPS23525 is an integrated hot swap and dual 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 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.

The TPS23525 integrates a dual OR-ing controller, making it ideal for –48-V systems fed by two redundant supplies.

Features

  • –10-V to –80-V DC Operation, –200-V Absolute Maximum
  • Soft Start Cap Disconnect
  • 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 Dual OR-ing Controller
    • Regulation: 25 mV ±15 mV
    • Fast Turn off: –6 mV ±4 mV
  • Retries After Time Out
  • 16-Pin TSSOP

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Parametrics Compare all products in Hot Swap Controllers (Positive, -48V)

 
Vin (Min) (V)
Vin (Max) (V)
Vabsmax_cont (V)
Channel(s) Controlled (#)
Current Limit Threshold (Typ) (Ext FET=mV)
Current Limit Accuracy
Fault Response
Status Output
ON_OFF Control Input(s)
Design Support
FET Protection
Features
Current Limit Function Enabled
Rating
Operating Temperature Range (C)
Pin/Package
TPS23525 TPS23521 TPS23523
-10    -10    -10   
-80    -80    -80   
-200    -200    -200   
1    1    1   
25    25    25   
4%    5%    5%   
Auto Retry    Auto Retry    Auto Retry   
PG    PG    PG   
EN    EN    EN   
Calculation Tool
EVM   
Calculation Tool
EVM   
Calculation Tool
EVM   
SOA    SOA    SOA   
HV OVUV
dV/dT   
HV OVUV
dV/dT   
HV OVUV
dV/dT   
Always    Always    Always   
Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125   
16TSSOP    16TSSOP    16TSSOP