LM9061 High-Side Protection Controller | TI.com

LM9061 (ACTIVE)

High-Side Protection Controller

 

Description

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.

Features

  • 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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Parametrics Compare all products in eFuses & hot swap controllers

 
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)
LM9061 LM5060 LM5060-Q1 LM9061-Q1
1     1     1     1    
External     External     External     External    
7     5.5     5.5     7    
26     65     65     26    
60     75     75     60    
  No External RSENSE     No External RSENSE      
Current Limiting     Current Limiting     Current Limiting     Current Limiting    
Fixed     Adjustable     Adjustable     Fixed    
Latch Off     Latch Off     Latch Off     Latch Off    
   
Startup Only     Startup Only    
   
Catalog     Catalog     Automotive     Automotive    
-40 to 125     -40 to 125     -40 to 125     -40 to 125    
SOIC | 8     VSSOP | 10     VSSOP | 10     SOIC | 8    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)