LM9061-Q1 High-Side Protection Controller for Automotive Applications | TI.com

LM9061-Q1 (ACTIVE) High-Side Protection Controller for Automotive Applications

 

Recommended alternative parts

  • LM5060  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   High-Side Protection Controller With Low Quiescent Current
  • LM5069  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   Positive High Voltage Hot Swap / Inrush Current Controller With Power Limiting

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

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) Features 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)
LM9061-Q1 Order now External     7     26     60     0.01     500     Overvoltage Cutoff     Current Limiting     Fixed     No     Latch Off         Automotive     -40 to 125     SOIC | 8     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
LM5060 Order now External     5.5     65     75     0.01     500     No External RSENSE     Current Limiting     Adjustable     No     Latch Off     Startup Only     Catalog     -40 to 125     VSSOP | 10     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)    
LM5060-Q1 Order now External     5.5     65     75     0.01     500     No External RSENSE     Current Limiting     Adjustable     No     Latch Off     Startup Only     Automotive     -40 to 125     VSSOP | 10     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)    
LM9061 Order now External     7     26     60     0.01     500     Overvoltage Cutoff     Current Limiting     Fixed     No     Latch Off         Catalog     -40 to 125     SOIC | 8     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)