TPS2491 Retry Positive High-Voltage Power-Limiting Hot Swap Controller | TI.com

TPS2491 (ACTIVE)

Retry Positive High-Voltage Power-Limiting Hot Swap Controller

 

Special note

For new designs, please use the improved LM5069

Description

The TPS249x are easy-to-use, positive high voltage, 10-pin Hot Swap Power Manager devices that safely drive an external N-channel MOSFET switch. The power limit and current limit (both are adjustable and independent of each other) ensure that the external MOSFET operates inside a selected safe operating area (SOA) under the harshest operating conditions. Applications include inrush current limiting, electronic circuit breaker protection, controlled load turn-on, interfacing to down-stream DC-to-DC converters, and power feed protection. These devices are available in a small, space-saving 10-pin VSSOP package and significantly reduce the number of external devices, saving precious board space. The TPS249x is supported by application notes, an evaluation module, and a design tool.

Features

  • Programmable Power Limiting and Current Limiting for Complete Safe Operating Area (SOA) Protection
  • Wide Operating Range: 9 V to 80 V
  • Latched Operation (TPS2490) and Automatic Retry (TPS2491)
  • High-Side Drive for Low-RDS(on) External N-channel MOSFET
  • Programmable Fault Timer to Protect the MOSFET and Eliminate Nuisance Shutdowns
  • Power Good Open-Drain Output for Downstream DC/DC Coordination
  • Enable Can Be Used as a Programmable Undervoltage Lockout or Logic Control
  • Small, Space-Saving 10-pin VSSOP Package
  • Calculator Tool Available (TPS2490/91 Design-in Calculator, SLVC033)

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WEBENCH® Designer TPS2491

  V in Lower V in Upper
9.00 ≤  V  V ≤ 80.00
Output Current Limit  Amps
Load Capacitance  uF
UVLO V
Ambient Temperature  °C ≤ 100°C

Parametrics

Compare all products in eFuses & hot swap controllers Email Download to Excel
Part number Order Number of channels (#) FET Vin (Min) (V) Vin (Max) (V) Vabsmax_cont (V) Features Overcurrent response Current limit type Fault response Current limit function enabled Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
LM5069 Order now 1     External     9     80     100     Overvoltage Cutoff     Current Limiting     Adjustable     Auto Retry
Latch Off    
Always     Catalog     -40 to 125     VSSOP | 10     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)    
TPS2480 Order now 1     External     9     80     26       Current Limiting     Adjustable     Latch Off       Catalog     -40 to 125     TSSOP | 20     20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)    
TPS2481 Order now 1     External     9     80     26       Current Limiting     Adjustable     Auto Retry     Always     Catalog     -40 to 125     TSSOP | 20     20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)    
TPS2482 Order now 1     External     9     80     40       Current Limiting     Fixed     Latch Off     Always     Catalog     -40 to 125     TSSOP | 20     20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)    
TPS2483 Order now 1     External     9     80     40       Current Limiting     Fixed     Auto Retry     Always     Catalog     -40 to 125     TSSOP | 20     20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)