LV8907UW: Sensor-less Three-phase Brushless DC Motor Controller, with Gate Drivers, for Automotive
The LV8907 is a high performance, sensor-less three-phase BLDC motor controller with integrated gate drivers for driving external N-MOSFETs. An on-chip two-stage charge pump provides required gate current for a wide range of ultra low RDS(ON) type external N-MOSFETs. The device offers a rich set of system protection and diagnostic functions such as over-current, over-voltage, short-circuit, under-voltage, over-temperature and many more. It supports open-loop as well as closed-loop speed control with user configurable startup, speed setting and proportional/integral (PI) control coefficients, making it suitable for a wide range of motor and load combinations. With an in-built linear regulator for powering an external circuit, a watchdog timer and a Local Interconnect Network (LIN) transceiver, the LV8907 offers the smallest system solution footprint. An SPI interface is provided for parameter setting and monitoring the system health. With the operating junction temperature tolerance up to 175°C and electrically LIN compatible control signals (PWM and Enable), the LV8907 is an ideal solution stand-alone automotive BLDC motor control systems.
Features- Operating junction temperature up to 175 °C
- Operating voltage range from 5.5V to 20V with tolerance from 4.5V to 40V
- Embedded proprietary sensor-less commutation control
- In-built LIN transciever and Watchdog timer
- SPI interface for real-time parameterization and diagnostic
- Various system protection features includingShoot through protection using configurable dead-timeDrain-source short detectionCycle-by-cycle current limit and over-current shutdownOver-voltage and under-voltage shutdown Over-temperature warning and shutdownInput PWM fault detection
- Integrated 5V/3.3V regulator output for external circuit
- Integrated gate drivers for driving six N-MOSFETs
- Two-stage charge pump for continuous 100% duty-cycle operation
- Supports open-loop as well as closed-loop speed control
- Configurable speed setting and PI control coefficients
| Benefits- Automobile application applicable
- Wide capability for various motors
- BOM cost reduction
- Connectivity with automotive network system
- Optional capability for micro-processer
- Building high reliable and robust system
|
Applications- Automotive pumps (Fuel, Oil, and Hydraulic)
- Fans (HVAC, Radiator, Battery Cooling, LED Headlight Cooling)
- BLDC motor control with or without LIN control
| End Products- Automotives
- White goods
- Industrials
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Software (1)
Data Sheets (1)
Package Drawings (1)
| Document Title | Document ID/Size | Revision |
|---|
| SPQFP 48 7x7 | 131AN (67.9kB) | A |
Application Notes (1)
Evaluation Board Documents (4)
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description |
|---|
| LV8907UWGEVK | Active | Pb-free | Sensor-less Three-phase Brushless DC Motor Controller, with Gate Drivers, for Automotive Evaluation Kit |
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| LV8907UWR2G | Active | AEC Qualified
PPAP Capable
Pb-free
Halide free | SQFP48K | 131AN | 3 | Tape and Reel | 2500 | $5.55 |
Specifications
| Product | Phase | VM Min (V) | VM Max (V) | VCC Min (V) | VCC Max (V) | IO Max (A) | IO Peak Max (A) | Control Type | Current Sense | Regulator Output | Fault Detection |
|---|
| LV8907UWR2G | 3 | 5.5 | 20 | | | 0.05 | 0.4 | PWM | External Resistor | Yes | UVLO |
