Product details


FET External Vin (Min) (V) 7 Vin (Max) (V) 26 Vabsmax_cont (V) 60 Current limit (Min) (A) 0.01 Current limit (Max) (A) 500 Overcurrent response Current Limiting Current limit type Fixed Fault response Latch Off UL recognition open-in-new Find other eFuses & hot swap controllers

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 open-in-new Find other eFuses & hot swap controllers


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Withstands 60-V Supply Transients
  • Overvoltage Shut-OFF With VCC > 30 V
  • Lossless Overcurrent Protection Latch-OFF
    • Current Sense Resistor is Not Required
    • Minimizes Power Loss With High Current Loads
  • Programmable Delay of Protection Latch-OFF
  • Gradual Turnoff to Minimize Inductive Load Transient Voltages
  • CMOS Logic-Compatible ON and OFF Control Input
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The LM9061 family consists of charge-pump devices which provides the gate drive to an external power MOSFET of any size configured as a high-side driver or switch. This includes multiple parallel connected MOSFETs for very high current applications. A CMOS logic-compatible ON and OFF input controls the output gate drive voltage. In the ON state, the charge pump voltage, which is well above the available VCC supply, is directly applied to the gate of the MOSFET. A built-in 15-V Zener clamps the maximum gate to source voltage of the MOSFET. When commanded OFF a 110-µA current sink discharges the gate capacitances of the MOSFET for a gradual turnoff characteristic to minimize the duration of inductive load transient voltages and further protect the power MOSFET.

Lossless protection of the power MOSFET is a key feature of the LM9061. The voltage drop (VDS) across the power device is continually monitored and compared against an externally programmable threshold voltage. A small current-sensing resistor in series with the load, which causes a loss of available energy, is not required for the protection circuitry. If the VDS voltage, due to excessive load current, exceeds the threshold voltage, the output is latched OFF in a more gradual fashion (through a 10-µA output current sink) after a programmable delay time interval.

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Technical documentation

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Type Title Date
* Datasheet LM9061 and LM9061-Q1 High-Side Protection Controller datasheet (Rev. I) Jan. 04, 2017
E-book 11 Ways to Protect Your Power Path white paper Jul. 03, 2019
User guide LM9061 High-Side Protection Controller EVM Nov. 07, 2014

Design & development

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Hardware development

document-generic User guide

The LM9061EVM evaluation module demonstrates high-side protection to a connected load from over-current and over-voltage conditions.  An ON/OFF input controls the gate drive to a high-side MOSFET. Over-current protection is performed by monitoring the voltage drop (VDS) across the MOSFET, which is (...)

  • Over-Voltage Protection Shut-OFF: 30V
  • Over-Current Protection Latch-OFF: 10 A
  • Current Sense Resistor Not Required. Minimizes Power Loss with High Current Loads.
  • Programmable Delay of Protection Latch-OFF with external capacitor

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
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Reference designs

Automotive Reverse Battery Protection Reference Design with Overcurrent and Overvoltage Shutoff
PMP9498 The PMP9498 reference design is a complete front-end protection solution for automotive systems needing reverse voltage, over-voltage, and over-current protection. Load switch capability is also implemented to digitally control the connection and disconnection of the load to the input supply. The (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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