L6229
DMOS driver for 3-phase brushless DC motor
Datasheet - production data
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 L6229 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
L6229 features a non-dissipative overcurrent
protection on the high-side Power MOSFETs and
thermal shutdown.
Table 1. Order codes
Features
Part number
powerSO36
L6229D
RDS(ON) 0.73 typ. value at Tj = 25 °C
Operating frequency up to 100 KHz
PowerDIP24
L6229DP
2.8 A output peak current (1.4 A DC)
Package
L6229N
Operating supply voltage from 8 to 52 V
SO24
Non-dissipative overcurrent detection and
protection
March 2014
This is information on a product in full production.
DocID9455 Rev 4
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