L9907

L9907 Automotive FET driver for 3 phase BLDC motor Datasheet - production data 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 TQFP64 (exposed pad down) External MOSFET overcurrent protection GAPGPS00129 Over-temperature diagnostic and shutdown Features Applications AEC-Q100 qualified Electric power steering Supply voltage from 4.2 V to 54 V Electric brake booster The device can withstand -7 V to 90 V at the Generic brushless DC motor driving FET high-side Driver pins Low standby current consumption Description Compatible with 3.3 V and 5 V Logic Level L9907 is a gate driver unit controlling 6 N-channel All logic pins withstand 35 V FETs for brushless DC motors in automotive Boost regulator for full Rdson down to 6 V applications. battery voltage Each pre-driver channel can be controlled 3 low-side + 3 high-side independent gate independently allowing the implementation of all drivers kinds of electric motor control strategy. PWM operation up to 20 kHz The base gate output current is set via an Adjustable gate driver controlled current up to external resistor, while via SPI it is possible to 600 mA select among 4 gate output current levels even when the application is running. 2 programmable differential current sense amplifiers L9907 is equipped with 2 current sense amplifiers 8 MHz, 16-bit SPI interface with configurable mode, gain and offset to guarantee maximum flexibility for phase or Programmable parameters: ground current sense strategy. Cross conduction dead time Full diagnostic is available through SPI. External MOSFET gate current level Current sense amplifier mode, offset and Table 1. Device summary gain Order code Package Packing Input over voltage threshold Short circuit detection L9907 Tray TQFP64 (10x10x1.0 mm) L9907TR Tape & reel April 2021 DS11800 Rev 5 1/49 This is information on a product in full production. www.st.comContents L9907 Contents 1 Block diagram and pin description . 6 1.1 Block diagram . 6 1.2 Pin description 7 2 Functional description 10 2.1 Power supply VB, VCC 10 2.2 Voltage regulator VDD . 10 2.3 EN1 and EN2 pins (ENABLE) . 10 2.4 Boost converter .11 2.4.1 BstDis (boost disable) function . 12 2.5 MOSFET drivers 13 2.5.1 GCR pin . 13 2.5.2 Shoot through protection 13 2.5.3 Drain source monitoring . 14 2.6 Current Sense Amplifier (CSA) . 14 2.7 System clock 15 2.8 General SPI usage 15 2.9 Device and FET fault handling . 16 2.9.1 SPI and PWM faults 17 3 Electrical specifications . 18 3.1 Maximum operating ranges . 18 3.2 Absolute maximum ratings 18 3.3 ESD protection . 19 3.4 Temperature ranges and thermal data . 20 3.5 Electrical characteristics 20 3.5.1 Supply 20 3.5.2 Voltage regulator VDD 21 3.5.3 Logic input pins (PWM H1 to 3, PWM L1 to 3, SCK, CS, SDI, BST DIS, EN1 and EN2) 22 3.5.4 Logic output pins (FS FLAG, SDO, TO3) . 22 3.5.5 Boost converter . 22 3.5.6 MOSFET drivers 23 2/49 DS11800 Rev 5