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STMicroelectronics - DMOS driver

Numéro de référence L6235
Description DMOS driver
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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L6235 fiche technique
L6235
DMOS driver for 3-phase brushless DC motor
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Datasheet - production data
Features
Operating supply voltage from 8 to 52 V
5.6 A output peak current (2.8 A DC)
RDS(ON) 0.3 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 synchr. 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
Description
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 PowerDIP24 (20 + 2 + 2),
PowerSO36 and SO24 (20 + 2 + 2) packages, the
L6235 device features a non-dissipative
overcurrent protection on the high-side power
MOSFETs and thermal shutdown.
October 2014
This is information on a product in full production.
DocID7618 Rev 3
1/35
www.st.com

PagesPages 30
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