Datasheet

ELECTRICAL CHARACTERISTICS
(7V < V
S
<
16.5V; -40°C < T
J
< 150°C; unless otherwise specified.)
Symbol Parameter Test Condition Min. Typ. Max. Unit
I
VS_SB
Quiescent Current in Standby
Mode
V
EN
<
0.3V; V
VS
<16.5V; T
j
<
85°(*)
V
EN
= 0; V
VS
=
14.5V; T
j
= 25°C
<1
<1
90
10
µ
A
µ
A
I
VS
Supply Current EN = HIGH, I
OUT1,2
= 0 2 6 mA
V
ENL
Low Enable Voltage 1.5 V
V
ENH
High Enable Voltage 3.5 6 V
V
ENthh
Enable Threshold Hysteresis 1 V
I
EN
Enable Input Current V
EN
= 5V 85 250
µ
A
V
IN1,2L
Low Input Voltage 1.5 V
V
IN1,2H
High Input Voltage 3.5 V
V
IN1,2thh
Input Threshold Hysteresis 1 V
I
IN1,2
Input Bias Current V
IN
= 0
V
IN
= 5V, EN = HIGH
-3
2
0
10
1
50
µ
A
µ
A
R
ON OUT1,2
ON-Resistance to Supply or
GND
I
OUT
=
±
0.8A; V
VS
= 7V; T
j
= 125°C
I
OUT
=
±
0.8A; V
VS
= 12V; T
j
= 12C
I
OUT
=
±
0.8A; V
VS
= 12V; T
j
= 25°C
1.2
1.1
0.7
2.8
2.25
|I
OUT1,2
| Output Current Limitation 1.2 1.6 2.2 A
V
DIAG
Diagnostic Output Drop I
DIAG
= 0.5mA, EN = HIGH
Overvoltage or Thermal Shut-
down
0.6 V
V
VSOVth
Supply Overvoltage
Threshold
17 19 21 V
t
ONLH
Turn on Delay Time See Fig. 2; V
VS
= 13.5V
Measured with 93
load
50 150
µ
s
t
ONHL
30 150
µ
s
t
OFFHL
Turn off Delay Time 10 100
µ
s
t
OFFLH
220
µ
s
t
dHL
Rising Delay Time 115 250
µ
s
t
dLH
Falling Delay Time 115 250
µ
s
t
rHS
Rise Time 30 100
µ
s
t
rLS
60 150
µ
s
t
fHS
Fall Time 25 100
µ
s
t
fLS
50 150
µ
s
* Tested at 125°C and guaranteed by correlation
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 IN2 OUT1 OUT2 DIAG NOTE
1 L X X Tristate Tristate OFF Standby Mode
2 H H H SRC SRC OFF Recommended for braking
3 H H L SRC SNK OFF
4HLHSNKSRCOFF
5 H L L SNK SNK OFF
6 H X X Tristate Tristate ON Overvoltage or Overtemperature
L9997ND
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