STA3398 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
STA3398
STMicroelectronics
'STA3398' PDF : 78 Pages View PDF
STA339BW
Electrical specifications
3.7
3.7.1
Testing
Functional pin definition
Pin name
Table 8. Functional pin definition
Number Logic value
IC status
0
PWRDN 23
1
0
TWARN 20
1
0
EAPD
19
1
Low consumption
Normal operation
A temperature warning is indicated by the external power
stage
Normal operation
Low consumption for power stage
All internal regulators are switched off
Normal operation
Figure 5. Test circuit 1
OUTxY
Vcc
Low current dead time = MAX(DTr, DTf)
Duty cycle = 50%
INxY
+Vcc
OUTxY
gnd
(3/4)Vcc
(1/2)Vcc
(1/4)Vcc
t
DTr
DTf
Rload = 8
+- vdc = Vcc/2
Duty cycle=A
DTin(A)
INxA
Figure 6. Test circuit 2
High current dead time for Bridge application = ABS(DTout(A)-DTin(A))+ABS(DTOUT(B)-DTin(B))
+VCC
DTout(A)
Q1
OUTxA
Iout
Q3
10μ
470nF
Rload = 4 Ω
470nF
Q2
DTout(B)
OUTxB
10μ
Iout
470nF
Q4
Duty cycle=B
DTin(B)
INxB
Duty cycle A and B: Fixed to have DC output current of Iout in the direction shown in figure
D06AU1651_00
DocID15251 Rev 7
19/78
78
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