IL33091AN Datasheet, PDF (1/5 Pages) Integral Corp. – Powerful High-grade FET driver

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.
IL33091AN
Functions
IL33091AD
Microcircuit provides pumping of charge (on
output capacity on pin Gate of gate control)to
drive power MOS transistor. Input Input ,
compatible with logic levels of CMOS
microcircuits ,controls pumping of charge (switch
in/switch off).
Designation of microcircuit in plastic
packages:
IL33091AN – in DIP-package MS-
001BA
IL33091AD – В SO-package MS-012AA
T_A = –40 ÷ +125°С
Check of drain-source voltage is implemented
(VDS) on power МОS transistor, detection of
package drawingsунки корпусов
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 VDS².
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 .
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