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L6208D fiches techniques PDF

STMicroelectronics - FULLY INTEGRATED STEPPER MOTOR DRIVER

Numéro de référence L6208D
Description FULLY INTEGRATED STEPPER MOTOR DRIVER
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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L6208D fiche technique
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February 2014
This is information on a product in full production.
L6208
DMOS driver for bipolar stepper motor
Datasheet - production data
Features
Operating supply voltage from 8 to 52 V
5.6 A output peak current (2.8 A RMS)
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 mode selection
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
Applications
Bipolar stepper motor
Description
The L6208 device is a DMOS fully integrated
stepper motor driver with non-dissipative
overcurrent protection, realized in BCD
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 PowerDIP24 (20 + 2 + 2),
PowerSO36 and SO24 (20 + 2 + 2) packages, the
L6208 device features a non-dissipative
overcurrent protection on the high-side Power
MOSFETs and thermal shutdown.
DocID7514 Rev 2
1/35
www.st.com

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