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參數(shù)資料
| 型號(hào)： | X80073 |
| 廠商： | Intersil Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Hot Swap Controller with Advanced Fault Protection and Voltage Refulator Output |
| 中文描述： | 熱插拔控制器與先進(jìn)的故障保護(hù)和輸出電壓Refulator |
| 文件頁(yè)數(shù)： | 13/14頁(yè) |
| 文件大?。?/td> | 279K |
| 代理商： | X80073 |
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13
FN8150.0
March 15, 2005
As shown in Figure 12, this circuit block contains a
comparator, and an internal voltage reference. These
provide a circuit to determine the whether the gate drive to
the FET has fully turned on as requested. If so, the power
good indicator (PWRGD) goes active.
Figure 12. Power Good Indicator
Manual Reset
The X80070 has a manual reset pin. MR (manual reset). The
MR signal is used as a manual reset for the GATE pin. This pin
is used to initiate Soft Reinsert. When MR is pulled LOW the
GATE pin will be pulled LOW. It also clears the FAR signal.
When the MR pin goes HIGH, it removes the override signal
and the gate will turn on based on the selected gate control
mechanism. (See Figure 3.)
Table 4.
Manual Reset (Gate Signal)
V
EE
R
SENSE
GATE
Power
Good
Logic
LOAD
PWRGD
V
DD
- 1V
ref
-48V
Output
Drive
Overvoltage Good Signal
Undervoltage Good Signal
Overcurrent Good Signal
MR
1
Gate Pin
Operational When MR is HIGH the reset
function is disabled
OFF
MR must be held LOW minimum of
5
μ
secs
Requirements
0
X80070, X80071, X80072, X80073
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