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STMicroelectronics Electronic Components Datasheet

L6226Q Datasheet

DMOS dual full bridge driver

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L6226Q pdf
L6226Q
DMOS dual full bridge driver
Features
Operating supply voltage from 8 to 52 V
www.DataSheet4U.com2.8 A output peak current (1.4 A DC)
RDS(on) 0.73 typ. value @ TJ = 25 °C
Operating frequency up to 100 kHz
Programmable high side overcurrent detection
and protection
Diagnostic output
Paralleled operation
Cross conduction protection
Thermal shutdown
Under voltage lockout
Integrated fast free wheeling diodes
Applications
Bipolar stepper motor
Dual or quad DC motor
Figure 1. Block diagram
VFQFPN32 5 mm x 5 mm
Description
The L6226Q is a DMOS dual full bridge designed
for motor control applications, realized in
BCDmultipower technology, which combines
isolated DMOS power transistors with CMOS and
bipolar circuits on the same chip. Available in
QFN32 5x5 package, the L6226Q 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.
VBOOT
VCP
PROGCLA
OCDA
VBOOT
CHARGE
PUMP
OCDA
ENA
IN1A
IN2A
OCDB
PROGCLB
ENB
IN1B
IN2B
THERMAL
PROTECTION
VOLTAGE
REGULATOR
10V
5V
OCDB
June 2008
OVER
CURRENT
DETECTION
GATE
LOGIC
VBOOT
10V
OVER
CURRENT
DETECTION
GATE
LOGIC
Rev 2
VBOOT
VSA
OUT1A
OUT2A
10V
SENSEA
BRIDGE A
BRIDGE B
D99IN1088A
VSB
OUT1B
OUT2B
SENSEB
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STMicroelectronics Electronic Components Datasheet

L6226Q Datasheet

DMOS dual full bridge driver

No Preview Available !

L6226Q pdf
Contents
Contents
L6226Q
1
www.DataSheet4U2.com
3
4
5
6
7
8
9
10
11
Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Power stages and charge pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Logic inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.3 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.4 Non-dissipative overcurrent detection and protection . . . . . . . . . . . . . . . 11
4.5 Thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Paralleled operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Output current capability and IC power dissipation . . . . . . . . . . . . . . 22
Thermal management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2/28


Part Number L6226Q
Description DMOS dual full bridge driver
Maker STMicroelectronics
Total Page 28 Pages
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