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PDF L9997ND Data sheet ( Hoja de datos )

Número de pieza L9997ND
Descripción DUAL HALF BRIDGE DRIVER
Fabricantes STMicroelectronics 
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No Preview Available ! L9997ND Hoja de datos, Descripción, Manual

® L9997ND
DUAL HALF BRIDGE DRIVER
HALF BRIDGE OUTPUTS WITH TYPICAL
RON = 0.7
OUTPUT CURRENT CAPABILITY ±1.2A
OPERATING SUPPLY VOLTAGE RANGE 7V
TO 16.5V
SUPPLY OVERVOLTAGE PROTECTION
FUNCTION FOR VVS UP TO 40V
VERY LOW QUIESCENT CURRENT IN
STANDBY MODE < 1µA
CMOS COMPATIBLE INPUTS WITH HYS-
TERESIS
OUTPUT SHORT-CIRCUIT PROTECTION
THERMAL SHUTDOWN
REAL TIME DIAGNOSTIC: THERMAL OVER-
LOAD, OVERVOLTAGE
MULTIPOWER BCD TECHNOLOGY
SO20 (12+4+4)
ORDERING NUMBERS: L9997ND
L9997ND013TR
DESCRIPTION
The L9997ND is a monolithic integrated driver, in
BCD technology intended to drive various loads,
including DC motors. The circuit is optimized for
automotive electronics enviromental conditions.
BLOCK DIAGRAM
VS
1
EN
10
VS
ENABLE
REFERENCE PROTECTION
BIAS
FUNC TIONS
VS
DIAG
11
5V
IN1
12
DRIVER 1
OUT1
19
IN2
9
April 1999
DRIVER 2
M
VS
OUT2
2
GND
4...7, 14...17
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L9997ND pdf
Figure 2. Timing Diagram.
Standby Mode
Operating Mode
EN
I N1
I N2
DIAG
tO NHL
OUT1 Tristate
t dLH
90%
tO NLH
10%
tr
90%
50%
O UT2
Tristat e
10%
tr
t dHL
tf
t dHL
t f t dLH
O ver temperature
or Overvoltage
L9997ND
Standby Mode
t dLH
t dHL
t O FFLH
Tristate
t dHL
t dLH
Tristate
Tristate
t O FFHL
Tristate
Figure 3. Typical RON - Characteristics of Source and Sink Stage
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