A6862: Automotive 3-Phase Isolator MOSFET Driver

The A6862 is an n-channel power MOSFET driver capable of controlling MOSFETs connected as a 3-phase solid-state relay in phase-isolation applications. It has three independent floating gate drive outputs to maintain the power MOSFETs in the on-state over the full supply range with high phase-voltage slew rates. An integrated charge pump regulator provides the above battery supply voltage necessary to maintain the power MOSFETs in the on-state continuously when the phase voltage is equal to the battery voltage. The charge pump will maintain sufficient gate drive (>7.5 V) for battery voltages down to 4.5 V with 100 kΩ gate source resistors.

The three gate drives can be controlled by a single logic-level input. In typical applications, the MOSFETs will be switched on within 8 μs and will switch off within 1 μs.

Two independent activation inputs can be used to put the A6862 into a low-power sleep mode with the charge pump disabled. Undervoltage monitors check that the pumped supply voltage and the gate drive outputs are high enough to ensure that the MOSFETs are maintained in a safe conducting state.

The A6862 is supplied in a 16-lead TSSOP (LP) with exposed pad for enhanced thermal dissipation. They are lead (Pb) free, with 100% matte-tin leadframe plating.


  • 3-phase disconnect for ASIL systems up to level D
  • Electric power steering (EPS)
  • Electric braking
  • 3-phase solid-state relay driver

Astrorep Inc. (Allegro and Sanken Semiconductors, Sanken Power Supplies)
141 John Street, Suite 300
Babylon, NY 11702
Phone: (631)422-2500
Fax: (631)422-2504
Web: www.astrorepinc.com
Email: donna.tweedy@astrorepinc.com

If this is not your local representative, find your local sales rep here.

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  • Three floating n-channel MOSFET drives
  • Maintains VGS with 100 kΩ gate-source resistors
  • Integrated charge pump controller
  • 4.5 to 50 V supply voltage operating range
  • Two independent activation inputs
  • Single phase-enable input
  • VCP and VGS undervoltage protection
  • 150°C ambient (165°C junction) continuous
A6862 Packages

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A6862 Product Image A6862 Functional Block Diagram A6862 Typical Application

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
A6862KLPTR-T 16-lead TSSOP -40°C to 150°C Yes View Data Contact your
local sales rep
Check Stock
APEK6862KLP-01-T 16-lead DEMO BOARD -40°C to 150°C No -- Contact your
local sales rep
Check Stock

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