Electrical specifications

STA510F

6/11

Figure 3.

Test circuit for low current dead time

Figure 4.

Test circuit for high current dead time

Table 7.

Unit

2.7

0.7

1.5

V

3.3

0.8

1.7

V

5

0.85

1.85

V

Table 8.

Logic truth table

TRI-STATE

INxA

INxB

Q1Q2Q3Q4

Output mode

0

x

x

OFF

OFF

OFF

OFF

Hi-Z

1

0

0

OFF

OFF

ON

ON

DUMP

1

0

1

OFF

ON

ON

OFF

NEGATIVE

1

1

0

ONOFF

OFF

ONPOSITIVE

1

1

1

ONONOFF

OFF

Not used

Low current dead time = MAX(DTr,DTf)

OUTxY

Vcc

(3/4)Vcc

(1/2)Vcc

(1/4)Vcc

t

DTf

DTr

Duty cycle = 50%

INxY

OUTxY

gnd

+Vcc

M58

M57

R 8

Ω

+

-

V67 =

vdc = Vcc/2

D03AU1458

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

Rload=8

Ω

Q2

OUTxB

DTout(B)

DTin(B)

DTout(A)

C71 470nF

C70

470nF

C69

470nF

Iout=4.5A

Iout=4.5A

Q4

Q1

Q3

M64

INxB

M63

D00AU1162

M58

INxA

M57

DTin(A)

Duty cycle=A

Duty cycle=B

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

L68 22

µ

L67 22

µ

OUTxA