L9997 查看數據表（PDF） - STMicroelectronics
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L9997 Datasheet PDF : 9 Pages
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L9997ND
ELECTRICAL CHARACTERISTICS (7V < VS < 16.5V; -40°C < TJ < 150°C; unless otherwise specified.)
Symbol
IVS_SB
IVS
VENL
VENH
VENthh
IEN
VIN1,2L
VIN1,2H
VIN1,2thh
IIN1,2
RON OUT1,2
|IOUT1,2|
VDIAG
VVSOVth
tONLH
tONHL
tOFFHL
tOFFLH
td HL
td LH
trHS
trLS
tfHS
tfLS
Parameter
Quiescent Current in Standby
Mode
Supply Current
Low Enable Voltage
High Enable Voltage
Enable Threshold Hysteresis
Enable Input Current
Low Input Voltage
High Input Voltage
Input Threshold Hysteresis
Input Bias Current
ON-Resistance to Supply or
GND
Output Current Limitation
Diagnostic Output Drop
Supply Overvoltage
Threshold
Turn on Delay Time
Turn off Delay Time
Rising Delay Time
Falling Delay Time
Rise Time
Fall Time
Test Condition
VEN < 0.3V; VVS <16.5V; Tj < 85°(*)
VEN = 0; VVS = 14.5V; Tj = 25°C
EN = HIGH, IOUT1,2 = 0
VEN = 5V
VIN = 0
VIN = 5V, EN = HIGH
IOUT = ±0.8A; VVS = 7V; Tj = 125°C
IOUT = ±0.8A; VVS = 12V; Tj = 125°C
IOUT = ±0.8A; VVS = 12V; Tj = 25°C
IDIAG = 0.5mA, EN = HIGH
Overvoltage or Thermal Shut-
down
See Fig. 2; VVS = 13.5V
Measured with 93Ω load
Min.
3.5
3.5
-3
2
1.2
17
* Tested at 125°C and guaranteed by correlation
Typ.
<1
<1
2
1
85
1
0
10
1.2
1.1
0.7
1.6
19
50
30
10
2
115
115
30
60
25
50
Max.
90
10
6
1.5
6
250
1.5
1
50
2.8
2.25
2.2
0.6
21
150
150
100
20
250
250
100
150
100
150
Unit
µA
µA
mA
V
V
V
µA
V
V
V
µA
µA
Ω
Ω
Ω
A
V
V
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
FUNCTIONAL DESCRIPTION
The L9997ND is a motor driver two half-bridge
outputs, intended for driving dc motors in automo-
tive systems. The basic function of the device is
shown in the Table 1.
Table 1. Table function.
Status
EN
IN1
1
L
X
2
H
H
3
H
H
4
H
L
5
H
L
6
H
X
IN2
OUT1
OUT2
DIAG
NOTE
X
Tristate Tristate
OFF
Standby Mode
H
SRC
SRC
OFF
Recommended for braking
L
SRC
SNK
OFF
H
SNK
SRC
OFF
L
SNK
SNK
OFF
X
Tristate Tristate
ON
Overvoltage or Overtemperature
3/9
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