IL33091AN, IL33091AD
Powerful High-grade FET driver
Description of basic functions.
Developed microcircuit is a high-performance driver of high -potential power field MOS
transistor control designed for use in harsh automotive switching applications requiring the
capability of handling high voltages on power line
attributed to transient commutation of loads in
conditions of automobile exploitation.
Load of microcircuit is a device on the base
of MOS transistors that enables switching high
current levels in automobile electrical system.
Microcircuit has Fault indication output when
there is short circuit in load or when load
transistor current level exceeds preset value.
Functions
Microcircuit provides pumping of charge (on
Designation of microcircuit in plastic
output capacity on pin
Gate
of gate control)to
packages:
drive power MOS transistor. Input
Input ,
IL33091AN – in DIP-package MS-
001BA
compatible with logic levels of CMOS
microcircuits ,controls pumping of charge (switch
IL33091AD –
В
SO-package MS-012AA
T
A
= –40
÷
+125°С
in/switch off).
Check of drain-source voltage is implemented
package drawingsу�½ки
корпусов
(VDS) on power
МОS
transistor, detection of
shorted load , presentation of error signal on pin
Fault.
Microcircuit has pin
V
T
of timer, that is both input in timer window comparators and
output of current square circuit, depending on r m s voltage drain-source on power MOS
transistor, as power dissipated in
МОS
device is proportional to VDS
2
.
External resistor R
T
and capacitor C
T
, connected to timer pin enable programming of
timing data necessary for protection of power MOS-device.
Internal circuit of stabilizer diodes with the
total
break down voltage of about 30V
provides protection of microcircuit and power
МОS
transistor from supply voltage value to
be exceeded. Activation of microcircuit Zener stabilizer diodes attributed to switching-off
МОS
transistor for the time when supply voltage value exceeded , in addition pin Fault
does not change its logic state .
IL33091AN
IL33091AD
1
INTEGRAL [ INTEGRAL CORP. ]
