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參數(shù)資料
| 型號： | L634 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | THREE PHASE MOTOR DRIVER |
| 中文描述： | 三相電機(jī)驅(qū)動 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 467K |
| 代理商： | L634 |
ELECTRICAL CHARACTERISTICS
(V
s
= 42V ; T
j
= 25°C unless otherwise specified)
Symbol
V
S
Parameter
Test Condition
Min.
7
Typ.
Max.
52
Unit
V
Supply Voltage
V
ref
I
S
T
S
T
D
Reference Voltage
10
V
Quiescent Supply Current
6.5
mA
Thermal Shutdown
150
°C
Dead Time Protection
300
ns
OUTPUT DMOS TRANSISTOR
Symbol
I
DSS
Parameter
Test Condition
Min.
Typ.
Max.
1
Unit
mA
Leakage Current
R
DS (ON)
ON Resistance
0.3
SOURCE DRAIN DIODE
Symbol
V
SD
T
RR
T
pr
Parameter
Test Condition
I
SD
= 4A; EN = LOW
Min.
Typ.
1.2
Max.
Unit
V
Forward ON Voltage
Reverse Recovery Time
I
F
= 4A
900
ns
Forward Recovery Time
200
ns
LOGIC LEVELS
Symbol
V
INL
, V
ENL
Parameter
Test Condition
Min.
-0.3
Typ.
Max.
0.8
Unit
V
Input LOW Voltage
V
INH
, V
ENH
Input HIGH Voltage
2
7
V
I
INL,
I
ENL
I
INH,
I
ENH
Input LOW Current
V
IN
,V
EN
= L
-10
μ
A
μ
A
Input HIGH Current
VIN,V
EN
= H
30
CIRCUIT DESCRIPTION
L6234 is a triple half bridge designed to drive
brushless DC motors.
Each half bridge has 2 power DMOS transistors
with R
ds
ON = 0.3
.
The 3 half bridges can be
controlled independently by 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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