L6226PDTR Datasheet, PDF (1/31 Pages) STMicroelectronics – DMOS dual full bridge driver

L6226
DMOS dual full bridge driver
Features
■ Operating supply voltage from 8 to 52 V
■ 2.8 A output peak current (1.4 A DC)
■ R_DS(on) 0.73 Ω typ. value @ T_J = 25 °C
■ Operating frequency up to 100 kHz
■ Programmable high side overcurrent detection
and protection
■ Diagnostic output
■ Paralleled operation
■ Cross conduction protection
■ Thermal shutdown
■ Undervoltage lockout
■ Integrated fast free wheeling diodes
Applications
■ Bipolar stepper motor
■ Dual or quad DC motor
Figure 1. Block diagram
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Description
The L6226 is a DMOS dual full bridge designed
for motor control applications, realized in
MultiPower-BCD technology, which combines
isolated DMOS power transistors with CMOS and
bipolar circuits on the same chip. Available in
PowerDIP24 (20+2+2), PowerSO36 and SO24
(20+2+2) packages, the L6226 features thermal
shutdown and a non-dissipative overcurrent
detection on the high side power MOSFETs plus
a diagnostic output that can be easily used to
implement the overcurrent protection.
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October 2009
Doc ID 9452 Rev 4
1/31
www.st.com
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