L9907A STMicroelectronics Integrated Circuit (Quad Flat Packages) In Stock
L9907A is a 3-phase BLDC motor FET gate driver IC by STMicroelectronics, designed to drive external N-channel MOSFETs in a full 6-switch inverter bridge for brushless DC motor control. Key specs: 64-pin TQFP package, SPI-configurable gate drive outputs, integrated protection and diagnostic features. Available in surface-mount TQFP-64 for automotive and industrial motor control applications.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat Packages
- Pin Count
- 65
- Lifecycle
- OBSOLETE
- Datasheet
- L9907A Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of L9907A?
- Drives a complete 3-phase BLDC inverter bridge with 6 independent gate driver outputs for high and low side N-channel MOSFETs
- SPI interface allows the host MCU to configure gate drive strength, dead time, and protection thresholds without additional passive components
- Integrated protection functions including overcurrent detection, undervoltage lockout, and thermal shutdown reduce external component count in motor drive designs
- 64-pin TQFP surface-mount package enables compact PCB integration alongside a microcontroller in space-constrained motor controller modules
What is L9907A used for?
L9907A is intended for 3-phase brushless DC motor drive systems in automotive applications such as electric power steering, HVAC blower control, and fuel pump modules where a gate driver must interface a microcontroller to a high-current MOSFET inverter bridge. Its SPI-configurable architecture lets system designers tune gate drive timing and protection thresholds in firmware to optimize switching losses and EMI for different motor loads. Industrial servo drives, e-bike motor controllers, and robotic joint actuators also benefit from its integrated diagnostics that simplify fault detection and system protection.
What are the specifications of L9907A?
| YTEOL | 0 |
| Analog IC - Other Type | 3-PHASE BRUSHLESS DC MOTOR CONTROLLER |
| JESD-30 Code | S-PQFP-G64 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP64,.47SQ |
| Package Shape | SQUARE |
| Package Style | FLATPACK |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the L9907A datasheet?
L9907A Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for L9907A?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many gate driver outputs does the L9907A provide, and how does this map to a 3-phase inverter bridge?
The L9907A provides 6 gate driver outputs, one for each of the 3 high-side and 3 low-side N-channel MOSFETs in a full 3-phase bridge inverter. This allows direct connection to a 6-switch topology capable of driving 3-phase BLDC motors with sinusoidal or trapezoidal commutation. No additional gate driver ICs are required to complete the power stage, reducing BOM and PCB area.
What package does the L9907A use, and how does the 64-pin TQFP footprint affect PCB layout for a motor controller?
The L9907A uses a 64-pin TQFP (Thin Quad Flat Pack) package with a 0.5 mm pin pitch and a body size of approximately 12x12 mm (package equivalence TQFP64, .47SQ). The gull-wing leads simplify hand soldering and inspection. The square footprint allows efficient routing of 6 gate drive traces to surrounding MOSFET positions while keeping SPI and diagnostic signal routing short to the adjacent MCU.
Which automotive motor control applications is the L9907A suited for, and what operating voltage range does it support?
The L9907A targets automotive 12 V and 24 V system applications including electric power steering, blower motor drives, fuel pump control, and cooling fan modules. The device is designed to interface with N-channel MOSFETs rated for the appropriate bus voltage. Its integrated undervoltage lockout prevents erratic gate drive behavior during engine cranking when supply voltage can drop to 6 V or below, protecting both the MOSFETs and the motor.
How does the SPI interface on the L9907A simplify motor drive design compared to fixed-function gate drivers?
With SPI configuration, the L9907A allows the host MCU to adjust gate drive source and sink current, programmable dead time between high and low side switches, and fault reporting thresholds at runtime. A fixed-function driver requires hardware resistors to set these parameters and lacks diagnostic readback. The SPI approach enables a single L9907A hardware design to be software-configured for different motors with varying gate charge (typically 10 nC to 200 nC) and switching frequency requirements up to tens of kHz.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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