LM5069 Positive High Voltage Hot Swap / Inrush Current Controller with Power Limiting | TI.com

LM5069
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Positive High Voltage Hot Swap / Inrush Current Controller with Power Limiting

 

Description

The LM5069 positive hot swap controller provides intelligent control of the power supply connections during insertion and removal of circuit cards from a live system backplane or other hot power sources. The LM5069 provides in-rush current control to limit system voltage droop and transients. The current limit and power dissipation in the external series pass N-Channel MOSFET are programmable, ensuring operation within the Safe Operating Area (SOA). The POWER GOOD output indicates when the output voltage is within 1.25 V of the input voltage. The input undervoltage and overvoltage lockout levels and hysteresis are programmable, as well as the initial insertion delay time and fault detection time. The LM5069-1 latches off after a fault detection, while the LM5069-2 automatically restarts at a fixed duty cycle. LM5069 is available in a 10-pin VSSOP package.

Features

  • Wide Operating Range: 9 V to 80 V
  • In-Rush Current Limit for Safe Board Insertion into Live Power Sources
  • Programmable Maximum Power Dissipation in the External Pass Device
  • Adjustable Current Limit
  • Circuit Breaker Function for Severe Overcurrent Events
  • Internal High Side Charge Pump and Gate Driver for External N-channel MOSFET
  • Adjustable Undervoltage Lockout (UVLO) and Hysteresis
  • Adjustable Overvoltage Lockout (OVLO) and Hysteresis
  • Initial Insertion Timer Allows Ringing and Transients to Subside after System Connection
  • Programmable Fault Timer Avoids Nuisance Trips
  • Active High Open Drain POWER GOOD Output
  • Available in Latched Fault and Automatic Restart Versions
  • 10-Pin VSSOP Package

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Parametrics

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Part number Order FET Vin (Min) (V) Vin (Max) (V) Vabsmax_cont (V) Current limit (Min) (A) Current limit (Max) (A) Overcurrent response Current limit type UL recognition Fault response Current limit function enabled Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
LM5069 Order now External     9     80     100     0.01     500     Current Limiting     Adjustable     No     Auto Retry
Latch Off    
Always     Catalog     -40 to 125     VSSOP | 10     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)    
TPS2480 Order now External     9     80     26     0.01     500     Current Limiting     Adjustable     No     Latch Off     Always     Catalog     -40 to 125     TSSOP | 20     20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)    
TPS2481 Order now External     9     80     26     0.01     500     Current Limiting     Adjustable     No     Auto Retry     Always     Catalog     -40 to 125     TSSOP | 20     20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)    
TPS2482 Order now External     9     80     40     0.01     500     Current Limiting     Fixed     No     Latch Off     Always     Catalog     -40 to 125     TSSOP | 20     20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)    
TPS2483 Order now External     9     80     40     0.01     500     Current Limiting