參數(shù)資料
型號(hào): LMD18245
廠商: National Semiconductor Corporation
英文描述: 3A, 55V DMOS Full-Bridge Motor Driver
中文描述: 第3A,55V的DMOS全橋式電動(dòng)機(jī)驅(qū)動(dòng)器
文件頁(yè)數(shù): 2/18頁(yè)
文件大?。?/td> 647K
代理商: LMD18245
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
DC Voltage at:
OUT 1, V
CC
, and OUT 2
COMP OUT, RC, M4, M3, M2, M1, BRAKE,
DIRECTION, CS OUT, and DAC REF
DC Voltage PGND to SGND
Continuous Load Current
Peak Load Current (Note 2)
Junction Temperature (T
J(max)
)
+60V
+12V
±
400mV
3A
6A
+150C
Power Dissipation (Note 3) :
TO-220 (T
A
= 25C, Infinite Heatsink)
TO-220 (T
A
= 25C, Free Air)
ESD Susceptibility (Note 4)
Storage Temperature Range (T
S
)
Lead Temperature (Soldering, 10 seconds)
25W
3.5W
1500V
40C to +150C
300C
Operating Conditions
(Note 1)
Temperature Range (T
J
) (Note 3)
Supply Voltage Range (V
CC
)
CS OUT Voltage Range
DAC REF Voltage Range
MONOSTABLE Pulse Range
40C to +125C
+12V to +55V
0V to +5V
0V to +5V
10 μs to 100 ms
Electrical Characteristics
(Note 2)
The following specifications apply for V
CC
= +42V, unless otherwise stated.
Boldface limits apply over the operating tem-
perature range, 40C
T
J
+125C.
A
= T
J
= 25C.
Symbol
Parameter
Conditions
Typical
(Note 5)
8
Limit
(Note 5)
Units
(Limits)
mA
mA (max)
I
CC
Quiescent Supply Current
DAC REF = 0V, V
CC
= +20V
15
POWER OUTPUT STAGE
R
DS(ON)
Switch ON Resistance
I
LOAD
= 3A
0.3
0.4
0.6
0.4
0.6
(max)
(max)
(max)
(max)
V
V(max)
ns
nC
I
LOAD
= 6A
0.3
V
DIODE
Body Diode Forward Voltage
I
DIODE
= 3A
1.0
1.5
T
rr
Q
rr
t
D(ON)
Diode Reverse Recovery Time
Diode Reverse Recovery Charge
Output Turn ON Delay Time
Sourcing Outputs
Sinking Outputs
Output Turn OFF Delay Time
Sourcing Outputs
Sinking Outputs
Output Turn ON Switching Time
Sourcing Outputs
Sinking Outputs
Output Turn OFF Switching Time
Sourcing Outputs
Sinking Outputs
Minimum Input Pulse Width
Minimum Dead Band
CURRENT SENSE AMPLIFIER
Current Sense Output
I
DIODE
= 1A
I
DIODE
= 1A
80
40
I
LOAD
= 3A
I
LOAD
= 3A
5
μs
ns
900
t
D(OFF)
I
LOAD
= 3A
I
LOAD
= 3A
600
400
ns
ns
t
ON
I
LOAD
= 3A
I
LOAD
= 3A
40
1
μs
μs
t
OFF
I
LOAD
= 3A
I
LOAD
= 3A
Pins 10 and 11
(Note 6)
200
80
2
40
ns
ns
μs
ns
t
pw
t
DB
I
LOAD
= 1A (Note 7)
200
175
300
325
μA (min)
μA (min)
μA (max)
μA (max)
%
%(max)
μA
μA (max)
250
Current Sense Linearity Error
0.5A
I
LOAD
3A (Note 7)
±
6
±
9
Current Sense Offset
I
LOAD
= 0A
5
20
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