參數(shù)資料
型號(hào)： MB3832A
廠商： Fujitsu Limited
英文描述： ECONOLINE: REC5-S_DRW(Z)/H4,H6 - Safety standards and approval: EN 60950 certified, rated for 250VAV (LVD test report)- Applied for Ul 1950 Component Recognised Certification- 5W DIP Package- 4kVDC & 6kVDC Isolation- Regulated Output- Continuous Short Circiut Protection Auto-Restarting
中文描述： 直流/直流轉(zhuǎn)換器集成電路充電
文件頁(yè)數(shù)： 15/23頁(yè)
文件大?。?/td> 219K
代理商： MB3832A
15
MB3832A
I
METHOD OF SETTING FOR EXTERNAL SYNCHRONOUS OSCILLATION
For external synchronous oscillation, connect a timing capacitor (C
T
), a timing resistor (R
T
), and an external sync
signal to the CT, RT, and SYNC pins, respectively.
In this case, select the C
T
and R
T
so that the oscillation frequency is 5% to 10% lower than the frequency of the
external synchronous signal excluding the setting error of the oscillation frequency.
The duty cycle (T1/T) of the external sync signal must be set within a range from 10% to 90%.
+
+
+
S
Q
R
S
Q
R
3
4
SYNC
C
T
2I*
3I*
1.9 V
C
T
V
REF
1.3 V
“L”
level: ON
*: | = VRT/R
T
, VRT (pin voltage at pin 2) = 1.0 V (typical)
1.4 V
Latch2
Latch1
T1
T
1.9 V
V
CT
1.3 V
0 V
5.0 V
V
SYNC
1.9 V
V
CT
1.3 V
0 V
5.0 V
V
SYNC
t
t
<Triangular wave oscillator (OSC) equivalent circuit>
<Free-run oscillation>
<External synchronous oscillation>
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