參數(shù)資料
型號: LM2722
廠商: National Semiconductor Corporation
英文描述: High Speed Synchronous/Asynchronous MOSFET Driver
中文描述: 高速同步/異步MOSFET驅(qū)動器
文件頁數(shù): 4/8頁
文件大?。?/td> 162K
代理商: LM2722
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 1)
VCC
CBOOT
CBOOT to SW
SW to PGND
Junction Temperature
Power Dissipation
(Note 2)
7.5V
42V
8V
36V
+150C
720mW
Storage Temperature
ESD Susceptibility
Human Body Model (Note 3)
Soldering Time, Temperature
65 to 150C
1kV
10sec., 300C
Operating Ratings
(Note 1)
VCC
Junction Temperature Range
4V to 7V
40 to 125C
Electrical Characteristics
VCC = CBOOT = 5V, SW = GND = 0V, unless otherwise specified. Typicals and limits appearing in plain type apply for T
A
=
T
J
= +25C. Limits appearing in
boldface
type apply over the entire operating temperature range.
Symbol
Parameter
Condition
POWER SUPPLY
I
q_op
Operating Quiescent
Current
TOP DRIVER
Peak Pull-Up Current
Test Circuit 1, V
bias
= 5V, R
= 0.1
Pull-Up Rds_on
I
CBOOT
= I
HG
= 0.7A
Peak Pull-down Current
Test Circuit 2, V
bias
= 5V, R
= 0.1
Pull-down Rds_on
I
SW
= I
HG
= 0.7A
t
4
Rise Time
Timing Diagram, C
LOAD
=
3.3nF
t
6
Fall Time
t
3
Pull-Up Dead Time
Timing Diagram
t
5
Pull-Down Delay
Timing Diagram, from
PWM_IN Falling Edge
BOTTOM DRIVER
Peak Pull-Up Current
Test Circuit 3, V
bias
= 5V, R
= 0.1
Pull-up Rds_on
I
VCC
= I
LG
= 0.7A
Peak Pull-down Current
Test Circuit 4, V
bias
= 5V, R
= 0.1
Pull-down Rds_on
I
GND
= I
LG
= 0.7A
t
8
Rise Time
Timing Diagram, C
LOAD
=
3.3nF
t
2
Fall Time
t
7
Pull-up Dead Time
Timing Diagram
t
1
Pull-down Delay
Timing Diagram, from
PWM_IN Rising Edge
LOGIC
V
uvlo_up
Power On Threshold
VCC rises from 0V toward
5V
V
uvlo_dn
Under-Voltage-Lock-Out
Threshold
V
uvlo_hys
Under-Voltage-Lock-Out
Hysteresis
V
IH_EN
SYNC_EN Pin High Input
V
IL_EN
SYNC_EN Pin Low Input
Min
Typ
Max
Units
PWM_IN = 0V
190
300
μA
3.0
A
1.0
3.2
A
0.5
17
12
23
ns
ns
ns
27
ns
3.2
A
1.0
3.2
A
0.5
17
14
28
ns
ns
ns
13
ns
4
3.7
V
3.0
2.5
V
0.7
V
2.4
V
V
0.8
L
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