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

LM5069 (ACTIVE)

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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WEBENCH® Designer LM5069

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

Parametrics

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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)