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參數資料
| 型號： | MB3785A |
| 廠商： | Fujitsu Limited |
| 英文描述： | Switching Regulator Controller (4 Channels plus High-Precision, High-Frequency Capabilities) |
| 中文描述： | 開關穩(wěn)壓器控制器（4通道加高精度，高頻率功能） |
| 文件頁數： | 12/29頁 |
| 文件大?。?/td> | 293K |
| 代理商： | MB3785A |
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12
MB3785A
(Continued)
(Continued)
7. Triangular wave maximum amplitude voltage
vs. Timing capacitance
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0
50 10
2
5
×
10
2
10
3
5
×
10
3
10
4
5
×
10
4
10
5
Timing capacitance C
T
(pF)
T
a
M
V
CC
= 6 V
RT = 10 k
Ta = +25°C
8. Triangular wave frequency
vs. Timing resistance
5 M
1 M
100 K
50 K
10 K
5 K
1 K
5 K10 K
50 K100 K500 K1 M
T
O
V
CC
= 6 V
Ta = +25°C
Timing resistance R
T
(
)
500 K
C
T
= 68 pF
C
T
= 150 pF
C
T
= 300 pF
C
T
= 1500 pF
C
T
= 15000 pF
9. Triangular wave cycle vs. Timing capacitance
V
CC
= 6 V
R
T
= 10 k
Ta = +25°C
100
50
10
5
1
0.5
0.2
10
10
2
5
×
10
2
10
3
5
×
10
3
10
4
5
×
10
4
T
O
μ
s
Timing capacitance C
T
(pF)
10. Duty vs. Triangular wave frequency
CH 1
V
CC
= 6 V
V
DT
= 1.60 V
Ta = +25°C
100
80
60
40
20
0
5 K 10 K
50 K 100 K
500 K 1 M
Triangular wave frequency (Hz)
D
11. Rate of change in triangular wave frequency vs.
Ambient temperature
(Not using ceramic resonator)
R
W
Ambient temperature Ta (°C)
10
5
0
–5
–10
–40
–20
0
20
40
60
80
100
V
CC
= 6 V
f
OSC
= 460 kHz
(R
T
= 6.8 k, C
T
= 280 pF)
12. Rate of change in triangular wave frequency vs.
Ambient temperature
(Using ceramic resonator)
R
W
Ambient temperature Ta (°C)
10
5
0
–5
–10
–40
–20
0
20
40
60
80
100
V
CC
= 6 V
f
OSC
= 450 kHz
(R
T
= 8.5 k
, C
T
= 250 pF)
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相關代理商/技術參數 |
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|---|---|
| MB3785A_03 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Switching Regulator Controller (4 Channels plus High-Precision, High-Frequency Capabilities) |
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