STA515W View Datasheet(PDF) - STMicroelectronics

Part Name

Description

View to exact match

STA515W

40 V, 3 A, quad power half bridge

STMicroelectronics 

Test circuits

4

Test circuits

STA515W

Duty cycle=A

DTin(A)

INA

Figure 3. Test circuit

OUTxY

Vcc

Low current dead time = MAX(DTr,DTf)

Duty cycle = 50%

+Vcc

(3/4)Vcc

(1/2)Vcc

(1/4)Vcc

t

DTr

DTf

INxY

OUTxY

gnd

R 8Ω

+

-

vdc = Vcc/2

D03AU1458

Figure 4. Current dead time test circuit

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

+VCC

DTout(A)

Q1

OUTA

L67 22μ

Iout=4.5A

Q3

C69

470nF

Rload=8Ω

C71 470nF

Q2

DTout(B)

OUTB

L68 22μ

Iout=4.5A

C70

Q4

470nF

Duty cycle=B

DTin(B)

INB

Duty cycle A and B: Fixed to have DC output current of 4.5A in the direction shown in figure

D03AU1517

8/16

DocID11079 Rev 3

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