L6235PD013TR Datasheet, PDF (1/35 Pages) STMicroelectronics – DMOS driver for 3-phase brushless DC motor

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)
 R_DS(ON) 0.3  typ. value at T_j = 25 °C
 Operating frequency up to 100 KHz
 Non-dissipative overcurrent detection and
protection
 Diagnostic output
 Constant t_OFF 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.
March 2014
This is information on a product in full production.
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