Overview
The L6230Q, produced by STMicroelectronics, is a DMOS fully integrated three-phase motor driver designed for driving brushless DC (BLDC) motors. It is optimized for Field Oriented Control (FOC) applications due to its independent current sensing capabilities. The device is realized in BCDmultipower technology, combining isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. This integration provides a robust and efficient solution for motor control systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | 8 to 52 | V |
| Output Peak Current | 2.8 A | A |
| RMS Output Current | 1.4 A | A |
| RDS(on) | 0.73 Ω (typ. at TJ = 25 °C) | Ω |
| Operating Frequency | Up to 100 kHz | kHz |
| Thermal Shutdown Temperature | 165 °C | °C |
| Package Options | PowerSO36, VFQFPN32 |
Key Features
- Integrated fast freewheeling diodes
- Non-dissipative overcurrent detection and protection
- Cross conduction protection
- Diagnostic output
- Uncommitted comparator with open-drain output
- Thermal shutdown and undervoltage lockout
- Charge pump circuit for bootstrap voltage generation
Applications
- BLDC motor driving
- Sinusoidal and six-step driving
- Field Oriented Control (FOC) driving systems
Q & A
- What is the operating supply voltage range of the L6230Q?
The operating supply voltage range is from 8 to 52 V. - What is the maximum output peak current of the L6230Q?
The maximum output peak current is 2.8 A. - What is the typical RDS(on) value of the L6230Q at 25 °C?
The typical RDS(on) value is 0.73 Ω. - What is the maximum operating frequency of the L6230Q?
The maximum operating frequency is up to 100 kHz. - Does the L6230Q have thermal shutdown protection?
Yes, it has thermal shutdown protection with a threshold temperature of 165 °C. - What are the package options for the L6230Q?
The package options are PowerSO36 and VFQFPN32. - Does the L6230Q have integrated overcurrent protection?
Yes, it has non-dissipative overcurrent detection and protection. - What is the purpose of the charge pump circuit in the L6230Q?
The charge pump circuit is used to generate the bootstrap voltage needed for driving the upper power MOSFETs. - Can the L6230Q be used for Field Oriented Control (FOC) applications?
Yes, it is optimized for FOC applications due to its independent current sensing capabilities. - What types of motor driving does the L6230Q support?
The L6230Q supports BLDC motor driving, sinusoidal driving, and six-step driving.
