L9907N
MOTOR BRIDGE FOR HEADLIGHT ADJUSTMENT
FULL BRIDGE OUTPUT CONFIGURATION
WITH LOW SATURATION VOLTAGE LESS
THAN 3.2V AT OUTPUT CURRENT 0.7A
OPERATING SUPPLY VOLTAGE RANGE 7V
TO 18V. SUPPLY OVERVOLTAGEUP TO 50V
HIGH POSITIONING PRECISION AND HIGH
NOISE IMMUNITY DUE TO TRANSFER
CHARACTERISTICS WITH NEUTRAL ZONE
AND STOP RANGE THRESHOLD
FAST STOP THROUGH SHORT-CIRCUITING
THE MOTOR
MOTOR STOP STATUS IN CASE OF OPEN
INPUT CONDITION
SUPPLY OVERVOLTAGE PROTECTION
FUNCTION FOR Vs MORE THAN 18V, UP
TO 50V
INPUT PROTECTION AGAINST TRAN-
SIENTS ON THE BATTERY LINE AND THE
REVERSE BATTERY CONDITION
THERMAL OVERLOAD PROTECTION
ESD PROTECTED ACCORDING TO MIL883C
BLOCK DIAGRAM
SO20L(12+4+4)
ORDERING NUMBER:
L9907ND (SO20L)
DESCRIPTION
The L9907N is a monolithic integrated power
comparator with full bridge output configuration,
intended for driving DC motors in positioning sys-
tems, optimized for headlight adjustment applica-
tion and respecting the automotive electronics en-
vironmental conditions.
V
S
PR
R
PR
INC
V
INC
I
INC
V
S
=
1.2V
REFERENCE
BIAS
PROTECTION
FUNCTIONS
=
-
+
OUT C
=
=
=
+
INF
V
INF
I
INF
-
I
M
OUT F
M
=
=
1.2V
L9907N
D95AT189
GND
December 1996
1/8
STMICROELECTRONICS [ STMICROELECTRONICS ]
