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STA515W Просмотр технического описания (PDF) - STMicroelectronics
Номер в каталоге
Компоненты Описание
производитель
STA515W
40 V, 3 A, quad power half bridge
STMicroelectronics
STA515W Datasheet PDF : 16 Pages
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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 8
Ω
+
-
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))
+V
CC
DTout(A)
Q1
OUTA
L67 22
μ
Iout=4.5A
Q3
C69
470nF
Rload=8
Ω
C71 470nF
Q2
DTout(B)
OUTB
L68 22
μ
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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