STK621-041 データシートの表示（PDF） - SANYO -> Panasonic

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STK621-041

Air Conditioner Three-Phase Compressor Motor Driver IMST Inverter Power Hybrid IC

SANYO -> Panasonic 

STK621-041,621-041A-E

Block Diagram and Pin Description

VB1(1)

U(2)

CB

VB2(4)

V(5)

CB

VB3(7)

CB

W(8)

+(10)

U.V.

U.V.

U.V.

-(12)

HIN1(13)

HIN2(14)

HIN3(15)

LIN1(16)

LIN2(17)

LIN3(18)

FAULT(19)

ISO(20)

VDD(21)

VSS(22)

Shunt-R

Level

Shifter

Logic

Level

Shifter

Logic

Level

Shifter

Logic

(Protection)

• Excessive Temperature

• Overcurrent

• VDD-Under Voltage

• Latch

Reset (All Input=High/OFF)

Numbers in parentheses indicate the pin numbers.

(1) + and - pins (main circuit power supply input pins)

These pins are connected to the main DC power supply. Voltage up to VCC can be applied. Spike voltage may be

generated during switching operation and result in overvoltage due to the effects of the floating inductance of the

connection wiring. Therefore, use a short wiring length to reduce the wiring inductance, and take measures to

suppress surge voltage and voltage fluctuation such as connecting a snubber circuit for absorbing voltage surges as

close as possible between the + and - pins.

(2) U, V and W pins

These output pins are connected to the three-phase motor. Note that these pins have the same voltage potential as the

minus-side reference voltage potential of each upper-side control power supply, and are connected to the minus pins

of the capacitors for each upper-side control power supply. Therefore, connect the capacitors as close to these pins

as possible.

(3) VDD and VSS pins

These connect the pre-driver circuits for the lower-side power devices with the internal protection circuits and the

external control power supplies for the logic circuits. The voltage over this section is monitored by the undervoltage

protection circuit. (Operation stops when the voltage is insufficient.) In addition, the VSS pin is the reference

voltage potential for the control input signals, the FAULT signal and the ISO signal. Note that the VSS pin is

connected internally with the minus (-) pins. (The main circuit current cannot be taken from the VSS pin.)

No. A0483-7/13

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