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參數(shù)資料
| 型號(hào)： | TDA9113 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 偏轉(zhuǎn) |
| 英文描述： | HORIZ/VERT DEFLECTION IC, PDIP32 |
| 封裝： | SHRINK, PLASTIC, DIP-32 |
| 文件頁(yè)數(shù)： | 31/50頁(yè) |
| 文件大?。?/td> | 755K |
| 代理商： | TDA9113 |
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TDA9113
37/50
condition for the reset of the R-S flip-flop, OR-ed
with the one described before, is that the voltage
on pin BISense exceeds the voltage VC1, which
depends on the voltage applied on input BISense
of the error amplifier O1. The two voltages are
compared, and the reset signal generated by the
comparator C1. The error amplifier amplifies (with
a factor defined by external components) the dif-
ference between the input voltage proportional to
DC/DC convertor output voltage and internal refer-
ence VBReg. The internal reference and so the out-
put voltage is I2C bus adjustable by means of
BREF I2C bus control.
Both step-up (DC/DC converter output voltage
higher than its input voltage) and step-down (out-
put voltage lower than input) are possible.
DC/DC controller Off-to-On edge timing
Figure 15. DC/DC converter controller block diagram
BOutPh
(Sad07/
D7)
BOHEdge
(Sad17/
D3)
Timing of Off-to-On transition
on BOut output
0
don’t care Middle of H-flyback plus tBTrigDel
1
0
Falling edge of H-drive signal
1
Rising edge of H-drive signal
C1
BRegIn
BComp
BIsense
BOut
N type
Soft start
H-drive edge
H-flyback
+
-
+
-
+
-
S
Q
R
~500ns
Monostable
HBOutEn
P type
VCC
Feedback
C2
BOutPol
(I2C)
XRayAlarm
(I2C)
BOutPh
(I2C)
HPosF
VThrBIsCurr
(+delay)
BOHEdge
(I2C)
2R
R
VBReg
I1
I2
I3
VC1
O1
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