STA500(2003) Просмотр технического описания (PDF) - STMicroelectronics

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Компоненты Описание

производитель

STA500
(Rev.:2003)

30V 3.5A QUAD POWER HALF BRIDGE

STMicroelectronics 

STA500

Figure 1. Test Circuit.

Low current dead time = MAX(DTr,DTf)

Duty cycle = 50%

INxY

+Vcc

M58

OUTxY

M57

gnd

OUTxY

Vcc

(3/4)Vcc

(1/2)Vcc

(1/4)Vcc

t

DTr

DTf

R 8Ω

+

-

V67 =

vdc = Vcc/2

D03AU1458

Figure 2.

+VCC

Figure 3.

Duty cycle=A

DTin(A)

INxA

INxA

Q1

OUTxA

Q2

OUTxB

Q3

Q4

GND

D00AU1134

INxB

High Current Dead time for Bridge application = ABS(DTout(A)-DTin(A))+ABS(DTOUT(B)-DTin(B))

+VCC

DTout(A)

M58

Q1

OUTxA

Rload=8Ω

Q2

M64

DTout(B)

OUTxB

L67 22µ

Iout=3.5A

L68 22µ

Iout=3.5A

M57

Q3

C69

470nF

C71 470nF

C70

470nF

Q4

M63

Duty cycle=B

DTin(B)

INxB

Duty cycle A and B: Fixed to have DC output current of 3.5A in the direction shown in figure

D00AU1162

6/10

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