Home Power management Power switches eFuses & hot swap controllers

LM25061

ACTIVE

2.9-V to 17-V hot swap controller with power limiting, power good, and overvoltage protection

Product details

FET External Vin (min) (V) 2.9 Vin (max) (V) 17 Vabsmax_cont (V) 20 Current limit (min) (A) 0.01 Current limit (max) (A) 500 Overcurrent response Circuit breaker, current limiting Fault response Auto-retry, Latch-off Soft start Adjustable Features Fault output, Power good signal Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85 Function Adjustable current limit, Inrush current control, Power good signal, Short circuit protection
FET External Vin (min) (V) 2.9 Vin (max) (V) 17 Vabsmax_cont (V) 20 Current limit (min) (A) 0.01 Current limit (max) (A) 500 Overcurrent response Circuit breaker, current limiting Fault response Auto-retry, Latch-off Soft start Adjustable Features Fault output, Power good signal Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85 Function Adjustable current limit, Inrush current control, Power good signal, Short circuit protection
VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • Operating Range: +2.9V to +17V
  • 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 Over-Current Events
  • Internal High Side Charge Pump and Gate Driver for External N-Channel MOSFET
  • Adjustable Under-Voltage Lockout (UVLO) and Hysteresis
  • Adjustable Output Voltage Monitoring 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
  • Package
    • VSSOP-10
  • Operating Range: +2.9V to +17V
  • 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 Over-Current Events
  • Internal High Side Charge Pump and Gate Driver for External N-Channel MOSFET
  • Adjustable Under-Voltage Lockout (UVLO) and Hysteresis
  • Adjustable Output Voltage Monitoring 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
  • Package
    • VSSOP-10

The LM25061 positive hot swap controller provides intelligent control of the power supply voltage to the load during insertion and removal of circuit cards from a live system backplane or other "hot" power sources. The LM25061 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 exceeds a programmable threshold. The input under-voltage level and hysteresis are programmable, as well as the initial insertion delay time and fault detection time. The LM25061-1 latches off after a fault detection, while the LM25061-2 automatically restarts at a fixed duty cycle. The LM25061 is available in a 10 pin VSSOP package.

The LM25061 positive hot swap controller provides intelligent control of the power supply voltage to the load during insertion and removal of circuit cards from a live system backplane or other "hot" power sources. The LM25061 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 exceeds a programmable threshold. The input under-voltage level and hysteresis are programmable, as well as the initial insertion delay time and fault detection time. The LM25061-1 latches off after a fault detection, while the LM25061-2 automatically restarts at a fixed duty cycle. The LM25061 is available in a 10 pin VSSOP package.

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Technical documentation

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Type Title Date
* Data sheet LM25061 Positive Low Voltage Power Limiting Hot Swap Controller datasheet (Rev. E) 28 Mar 2013
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Selection guide Hot Swap Selection Tool 28 Jul 2015
EVM User's guide AN-1946 LM25061 Evaluation Board (Rev. D) 06 May 2013

Design & development

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Simulation model

LM25061-1 Unencrypted PSpice Transient Model Package (Rev. A)

SNVM380A.ZIP (70 KB) - PSpice Model
Simulation model

LM25061-2 Unencrypted PSpice Transient Model Package (Rev. A)

SNVM379A.ZIP (69 KB) - PSpice Model
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VSSOP (DGS) 10 View options

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