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參數(shù)資料
| 型號(hào)： | MIC280-7YM6 |
| 廠商： | MICREL INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | IGBT Modules up to 1200V SixPACK |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO6 |
| 封裝： | LEAD FREE, SOT-23, 6 PIN |
| 文件頁數(shù)： | 22/23頁 |
| 文件大小： | 226K |
| 代理商： | MIC280-7YM6 |
MIC280
Micrel
MIC280
22
November 2004
on these devices. To allow for this, the MIC280
has superb rejection of noise appearing from
collector to GND.
4. Due to the small currents involved in the mea-
surement of the remote diode’s
V
BE
, it is
important to adequately clean the PC board after
soldering to prevent current leakage. This is
most likely to show up as an issue in situations
where water-soluble soldering fluxes are used.
5. In general, wider traces for the ground and T1
lines will help reduce susceptibility to radiated
noise (wider traces are less inductive). Use trace
widths and spacing of 10 mils wherever possible
and provide a ground plane under the MIC280
and under the connections from the MIC280 to
the remote diode. This will help guard against
stray noise pickup.
REMOTE DIODE (T1)
GUARD/RETURN
1
2
VDD
GND
T1
6
5
4
3
/INT
DATA
CLK
GUARD/RETURN
MIC280
Figure 6. Guard Traces/Kelvin Ground Returns
DATA
CLK
/INT
5
4
6
2
3
1
TO
SERIAL BUS
HOST
2N3906/
1800pF
MIC280
3V to 3.6V
100
3 ×
10k
VDD
T1
GND
0.1μF
ceramic
4.7μF
Figure 7. V
DD
Decoupling for Very Noisy Supplies
6. Always place a good quality power supply
bypass capacitor directly adjacent to, or under-
neath, the MIC280. This should be a 0.1 μF ce-
ramic capacitor. Surface-mount parts provide the
best bypassing because of their low inductance.
7. When the MIC280 is being powered from par-
ticularly noisy power supplies, or from supplies
which may have sudden high-amplitude spikes
appearing on them, it can be helpful to add ad-
ditional power supply filtering. This should be
implemented as a 100Ω resistor in series with
the part’s V
DD
pin, and a 4.7 μF, 6.3V electrolytic
capacitor from V
DD
to GND. See Figure 7.
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