L6208Q View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L6208Q' PDF : 34 Pages View PDF
L6208Q
DMOS driver for bipolar stepper motor
9)4)31
[ PP
Features
Operating supply voltage from 8 to 52 V
5.6 A output peak current
RDS(on) 0.3 typ. value at Tj = 25 °C
Operating frequency up to 100 kHz
Non-dissipative overcurrent protection
Dual independent constant tOFF PWM current
controllers
Fast/slow decay synchronous rectification
Fast decay quasi-synchronous rectification
Decoding logic for stepper motor full and half
step drive
Cross conduction protection
Thermal shutdown
Undervoltage lockout
Integrated fast freewheeling diodes
Application
Bipolar stepper motor
Datasheet - production data
Description
The L6208Q device is a DMOS fully integrated
stepper motor driver with non-dissipative
overcurrent protection, realized in BCDmultipower
technology, which combines isolated DMOS
power transistors with CMOS and bipolar circuits
on the same chip. The device includes all the
circuitry needed to drive a two-phase bipolar
stepper motor including: a dual DMOS full bridge,
the constant OFF time PWM current controller
that performs the chopping regulation, and the
phase sequence generator that generates the
stepping sequence. Available in a VFQFPN48
7 x 7 mm package, the L6208Q features a non-
dissipative overcurrent protection on the high-side
Power MOSFETs and thermal shutdown.
June 2013
This is information on a product in full production.
DocID018710 Rev 3
1/34
www.st.com
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