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L6234 数据表(PDF) 5 Page - STMicroelectronics

部件名 L6234
功能描述  THREE PHASE MOTOR DRIVER
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6234 数据表(HTML) 5 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (Vs = 42V ; Tj =25
°C unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VS
Supply Voltage
7
52
V
Vref
Reference Voltage
10
V
IS
Quiescent Supply Current
6.5
mA
TS
Thermal Shutdown
150
°C
TD
Dead Time Protection
300
ns
OUTPUT DMOS TRANSISTOR
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
IDSS
Leakage Current
1mA
RDS (ON)
ON Resistance
0.3
SOURCE DRAIN DIODE
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VSD
Forward ON Voltage
ISD = 4A; EN = LOW
1.2
V
TRR
Reverse Recovery Time
IF =4A
900
ns
Tpr
Forward Recovery Time
200
ns
LOGIC LEVELS
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VINL,VENL
Input LOW Voltage
-0.3
0.8
V
VINH,VENH
Input HIGH Voltage
27
V
IINL, IENL
Input LOW Current
VIN,VEN =L
-10
µA
IINH, IENH
Input HIGH Current
VIN,VEN =H
30
µA
CIRCUIT DESCRIPTION
L6234 is a triple half bridge designed to drive
brushless DC motors.
Each half bridge has 2 power DMOS transistors
with RdsON = 0.3
Ω. The 3 half bridges can be
controlled independentlyby means of the 3 inputs
IN1, IN2, IN3 and the 3 inputs EN1, EN2, and
EN3. An external connection to the 3 common
low side DMOS sources is provided to connect a
sensing resistor for constant current chopping ap-
plication.
The driving stage and the logic stage are de-
signed to work from 7V to 52V.
L6234
5/10


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