EVAL6235NL6235 DMOS Driver for Three-Phase Brushless DC Motor Evaluation Board
The L6235 device is a DMOS fully integrated 3-phase motor driver with overcurrent protection.
Realized in BCD technology, the device combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip.
The device includes all the circuitry needed to drive a 3-phase BLDC motor including: a 3-phase DMOS bridge, a constant off-time PWM current controller and the decoding logic for single ended hall sensors that generates the required sequence for the power stage.
Available in a PowerDIP24 (20 + 2 + 2) package, the L6235 device features non-dissipative overcurrent protection on the high-side power MOSFETs and the thermal shutdown.
- Operating supply voltage from 8 to 52 V
- 5.6 A output peak current (2.8 A DC)
- RDS(ON)0.3 Ω typ. value at Tj = 25 °C
- Operating frequency up to 100 KHz
- Non-dissipative overcurrent detection and protection
- Diagnostic output
- Constant tOFF PWM current controller
- Slow decay synchronous rectification
- 60° and 120° hall effect decoding logic
- Brake function
- Tachometer output for speed loop
- Cross-conduction protection
- Thermal shutdown
- Undervoltage lockout
- Integrated fast freewheeling diodes
DB2576: Demonstration board for L6235 DMOS driver for 3-phase brushless DC motor
AN1794: PractiSPIN evaluation system configuration and set up guide
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