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3 phase gate driver for 6step or FOC controlled Brushless Motors compatible with 48V NET

Quantity $ per Unit Savings
1 - 9$11.180%
10 - 24$10.288%
25 - 99$9.8612%
100 - 249$8.6822%
250 - 499$8.2626%
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Parameter NameParameter Value
Operating RangeAutomotive
Supply Voltage Min Volt4.2
Supply Voltage Max Volt54.0
Packing TypeTray
RoHs compliantEcopack2
Package NameTQFP 64 10x10x1.0

L9907 is a gate driver unit controlling 6 N-channel FETs for brushless DC motors in automotive applications.

Each pre-driver channel can be controlled independently allowing the implementation of all kinds of electric motor control strategy.

The base gate output current is set via an external resistor, while via SPI it is possible to select among 4 gate output current levels even when the application is running.

L9907 is equipped with 2 current sense amplifiers with configurable mode, gain and offset to guarantee maximum flexibility for phase or ground current sense strategy.

Full diagnostic is available through SPI.

Key features
  • AEC-Q100 qualified
  • Supply voltage from 4.2 V to 54 V
  • The device can withstand -7 V to 90 V at the FET high-side Driver pins
  • Low standby current consumption
  • Compatible with 3.3 V and 5 V Logic Level
  • All logic pins withstand 35 V
  • Boost regulator for full Rdson down to 6 V battery voltage
  • 3 low-side + 3 high-side independent gate drivers
  • PWM operation up to 20 kHz
  • Adjustable gate driver controlled current up to 600 mA
  • 2 programmable differential current sense amplifiers
  • 8 MHz, 16-bit SPI interface
  • Programmable parameters:
    • Cross conduction dead time
    • External MOSFET gate current level
    • Current sense amplifier mode, offset and gain
    • Input over voltage threshold
    • Short circuit detection
  • Protection and diagnostic
    • Gate to source output voltage limit
    • Gate to source passive switch off
    • FET driver supply UV diagnostic
    • OV, UV diagnostic and protection on VB and VCC
    • External MOSFET overcurrent protection
    • Over-temperature diagnostic and shutdown
  • Applications
    • Electric power steering
    • Electric brake booster
    • Generic brushless DC motor driving