L6225 Datasheet, PDF (1/10 Pages) STMicroelectronics – DUAL DMOS FULL BRIDGE MOTOR DRIVER

L6225
DUAL DMOS FULL BRIDGE MOTOR DRIVER
PRELIMINARY DATA
s OPERATING SUPPLY VOLTAGE FROM 8 TO
52V
s 2.8A PEAK CURRENT (1.4A DC)
s R_{DS (ON)} 0.73Ω TYP. VALUE @ T_j = 25 °C
s CROSS CONDUCTION PROTECTION
s THERMAL SHUTDOWN
s OPERATING FREQUENCY UP TO 100KHz
s HIGH SIDE OVER CURRENT PROTECTION
s CMOS/TTL INPUT
s INTRINSIC FAST FREE WHEELING DIODES
s UNDER VOLTAGE LOCKOUT
TYPICAL APPLICATIONS
s STEPPER MOTOR
s DUAL OR QUAD DC MOTOR
DESCRIPTION
The L6225 is a dual full bridge driver for motor control
applications manufactured with Multipower BCD
technology which combines isolated DMOS power
PowerDIP20
(16+2+2)
PowerSO20
SO20
(16+2+2)
ORDERING NUMBERS:
L6225N
L6225PD
L6225D
transistors with CMOS and bipolar circuits on the
same chip.
The Logic Inputs are CMOS/TTL and µP compatible.
The High Side switches are protected against unsafe
over current conditions.
Each full bridge is controlled by a separate Enable
and has a sense pin for the current sense resistor in-
sertion. Another feature is the thermal shutdown.
The L6225 is assembled in PowerDIP20(16+2+2),
PowerSO20 and SO20(16+2+2) packages.
BLOCK DIAGRAM
GND
GND
GND
GND
ENA
ENB
IN1A
IN2_A
IN1 B
IN2_B
OUT1_A
VS A
SENSE A
OUT2_A
VS A
V_{S A}
VS A
Logic
&
Drivers
VBO OT
Charg e
Pump
VCP
VS B
OUT1B
SENSEB
VS B
VS B
OUT2B
V_{S B}
March 2001
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change with out notice.
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