L9907 is a smart power device realized in STMicroelectronics advanced BCD-6s technology. It is able to drive all PowerMOS transistors for 3-phase BLDC motor applications. The circuit is suitable to operate in environments with high supply voltage such as double battery. Supply related pins are capable of withstanding up to 90 V.
Moreover, the device is able to control the six pre-driver channels independently. In this way it is possible to implement all kinds of electric motor control strategy.
The integrated boost regulator provides sufficient gate charge for all PowerMOS down to a battery voltage of 6 V. All pre-drivers have dedicated connections with the MOSFET sources. The device offers programmability for a base gate output current via an external resistor. Moreover, via SPI, it is possible to select among 4 gate output current levels even while the application is running. All channels are protected against short circuit and the device is protected against overtemperature conditions. Moreover, the boost converter implements an over voltage protection to allow safe functionality of pre-drivers in all battery voltage conditions. During over voltage conditions, BST_C voltage is limited by temporarily switching off the boost regulator and pre-drivers are allowed to operate. Boost will be self re-enabled as soon as the output voltage decreases to an acceptable value.
The device is equipped with 2 current sense amplifiers. Both have SPI selectable amplifier gain (10, 30, 50 and 100) and output offset voltage level in order to allow max flexibility for phase or ground current sense strategy. All I/O pins are 35 V compatible. Full diagnostic is available through SPI. The device is available in TQFP64 and bare die, depending on the application requirements.
The device is protected against Shoot Through events.
|DS11800: Automotive FET driver for 3 phase BLDC motor||2.0||684 KB|
|AN5124: Supply voltage configuration of 3-phase BLDC automotive MOSFET driver L9907||1.0||2 MB|
|ST’s solutions for automotive seating systems||1.0||1 MB|
|EVAL-L9907||Evaluation board for L9907 highly integrated 3-phase BLDC motors pre-driver with integrated rail-to-rail operational ampliers and Inductive booster for system operation from 6V up to 54V|
|EVAL-L9907-H||Evaluation board for L9907 highly integrated 3-phase BLDC motors pre-driver with integrated rail-to-rail operational ampliers and Inductive booster for system operation from 6V up to 54V - high Current version (120Amps)|
|Part Number||Package||Packing Type||Operating Temperature (°C) (min)||Operating Temperature (°C) (max)||Marketing Status||Unit Price (US$) *||Quantity||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|L9907TR||TQFP 64 10x10x1.0||Tape And Reel||-||-||Active : Product is in volume production||5.39||1||EAR99||-||MORE INFO||DISTRIBUTOR AVAILABILITY|
|L9907||TQFP 64 10x10x1.0||Tray||-||-||Active : Product is in volume production||5.39||1||EAR99||-||MORE INFO||Buy Direct Add to cart||DISTRIBUTOR AVAILABILITY|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
|L9907TR||Active||TQFP 64 10x10x1.0||Automotive||Ecopack2|
|L9907||Active||TQFP 64 10x10x1.0||Automotive||Ecopack2|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.