參數(shù)資料
型號: L9997
廠商: 意法半導(dǎo)體
英文描述: DUAL HALF BRIDGE DRIVER
中文描述: 雙半橋驅(qū)動
文件頁數(shù): 3/9頁
文件大?。?/td> 96K
代理商: L9997
ELECTRICALCHARACTERISTICS
(7V < V
S
<
16.5V; -40
°
C< T
J
< 150
°
C;unless otherwise specified.)
Symbol
I
VS_SB
Parameter
Test Condition
Min.
Typ.
<1
<1
2
Max.
90
10
6
Unit
μ
A
μ
A
mA
Quiescent Current in Standby
Mode
Supply Current
V
EN
<
0.3V;V
VS
<16.5V; T
j
<
85
°
(*)
V
EN
= 0; V
VS
=
14.5V; T
j
= 25
°
C
EN = HIGH, I
OUT1,2
= 0
I
VS
V
ENL
V
ENH
V
ENthh
I
EN
V
IN1,2L
V
IN1,2H
V
IN1,2thh
I
IN1,2
Low Enable Voltage
High Enable Voltage
Enable Threshold Hysteresis
Enable Input Current
Low Input Voltage
High Input Voltage
Input Threshold Hysteresis
Input Bias Current
1.5
6
V
V
V
μ
A
V
V
V
μ
A
μ
A
A
V
3.5
1
V
EN
= 5V
85
250
1.5
3.5
1
0
V
IN
= 0
V
IN
= 5V, EN = HIGH
I
OUT
=
±
0.8A; V
VS
= 7V; T
j
= 125
°
C
I
OUT
=
±
0.8A; V
VS
= 12V;T
j
= 125
°
C
I
OUT
=
±
0.8A; V
VS
= 12V; T
j
= 25
°
C
-3
2
10
1.2
1.1
0.7
1.6
1
50
2.8
2.25
R
ON OUT1,2
ON-Resistance to Supplyor
GND
|I
OUT1,2
|
V
DIAG
Output Current Limitation
Diagnostic Output Drop
1.2
2.2
0.6
I
DIAG
= 0.5mA, EN = HIGH
Overvoltage or Thermal Shut-
down
V
VSOVth
Supply Overvoltage
Threshold
Turn on Delay Time
17
19
21
V
t
ONLH
t
ONHL
t
OFFHL
t
OFFLH
t
dHL
t
dLH
t
rHS
t
rLS
t
fHS
t
fLS
See Fig. 2; V
VS
= 13.5V
Measured with 93
load
50
30
10
2
115
150
150
100
20
250
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
Turn off Delay Time
Rising Delay Time
Falling Delay Time
Rise Time
115
30
250
100
60
25
150
100
Fall Time
50
150
* Tested at 125
°
C and guaranteedby correlation
FUNCTIONAL DESCRIPTION
The L9997ND is a motor driver two half-bridge
outputs,intended for drivingdc motorsin automo-
tive systems. The basic function of the device is
shown in the Table1.
Table 1. Table function.
Status
1
2
3
4
5
6
EN
L
H
H
H
H
H
IN1
X
H
H
L
L
X
IN2
X
H
L
H
L
X
OUT1
Tristate
SRC
SRC
SNK
SNK
Tristate
OUT2
Tristate
SRC
SNK
SRC
SNK
Tristate
DIAG
OFF
OFF
OFF
OFF
OFF
ON
NOTE
Standby Mode
Recommended for braking
Overvoltage or Overtemperature
L9997ND
3/9
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