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L6258EP 数据表(PDF) 1 Page - STMicroelectronics

部件名 L6258EP
功能描述  PWM CONTROLLED - HIGH CURRENT DMOS UNIVERSAL MOTOR DRIVER
Download  22 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6258EP 数据表(HTML) 1 Page - STMicroelectronics

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L6258EP
July 2005
1
FEATURES
ABLE TO DRIVE BOTH WINDINGS OF A
BIPOLAR STEPPER MOTOR OR TWO DC
MOTORS
OUTPUT CURRENT UP TO 1.3A EACH
WINDING
WIDE VOLTAGE RANGE: 12V TO 40V
FOUR QUADRANT CURRENT CONTROL,
IDEAL FOR MICROSTEPPING AND DC
MOTOR CONTROL
PRECISION PWM CONTROL
NO NEED FOR RECIRCULATION DIODES
TTL/CMOS COMPATIBLE INPUTS
CROSS CONDUCTION PROTECTION
THERMAL SHUTDOW
2
DESCRIPTION
L6258EP is a dual full bridge for motor control appli-
cations realized in BCD technology, with the capabil-
ity of driving both windings of a bipolar stepper motor
or bidirectionally control two DC motors.
L6258EP and a few external components form a
complete control and drive circuit. It has high efficien-
cy phase shift chopping that allows a very low current
ripple at the lowest current control levels, and makes
this device ideal for steppers as well as for DC mo-
tors.The power stage is a dual DMOS full bridge ca-
pable of sustaining up to 40V, and includes the
diodes for current recirculation.The output current ca-
pability is 1.3A per winding in continuous mode, with
peak start-up current up to 2A. A thermal protection
circuitry disables the outputs if the chip temperature
exceeds the safe limits.
DATASHEET
PWM CONTROLLED - HIGH CURRENT
DMOS UNIVERSAL MOTOR DRIVER
Figure 2. Block Diagram
DAC
CHARGE
PUMP
VR (VDD/2)
VCP1
PH_1
I0_1
I1_1
I2_1
VREF1
TRIANGLE
GENERATOR
TRI_CAP
ERROR
AMP
+
-
VR
+
-
+
-
C
C
POWER
BRIDGE
1
TRI_0
TRI_180
TRI_180
TRI_0
DAC
PH_2
I0_2
I1_2
I2_2
VREF1
ERROR
AMP
+
-
VR
+
-
+
-
C
C
POWER
BRIDGE
2
TRI_0
TRI_180
THERMAL
PROT.
OUT1A
OUT1B
Rs
SENSE1A
VBOOT
DISABLE
VS
OUT2A
OUT2B
SENSE2A
Rs
VS
EA_IN2
EA_OUT2
GND
EA_IN1
EA_OUT1
VCP2
VDD(5V)
D96IN430D
VR GEN
INPUT
&
SENSE
AMP
CP
CFREF
CBOOT
INPUT
&
SENSE
AMP
I3_1
I3_2
SENSE1B
SENSE2B
RC1
R1 1M
R2 1M
RC2
CC2
CC1
Rev. 3
Figure 1. Package
Table 1. Order Codes
Part Number
Package
E-L6258EP
PowerSSO36
PowerSSO36


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