Datasheet > KK33091A

KK33091A

更新时间： 2024-11-21 03:48:07

品牌	Logo	应用领域
可天士 - KODENSHI		驱动器
页数	文件大小	规格书
5页	226K
描述
Powerful High-grade FET driver

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KK33091A 数据手册

TECHNICAL DATA

KK33091A

Powerful High-grade FET driver

Description of basic functions.

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.

ORDERING INFORMATION

KK33091AN Plastic

KK33091AD SOIC

T_A= -40° to 125° C

for all packages.

Functions

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).

Check of drain-source voltage is implemented (VDS) on power МОS transistor, detection of

shorted load , presentation of error signal on pin Fault.

Microcircuit has pin V_Tof 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_Tand 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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