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參數(shù)資料
| 型號： | SMH4803AS |
| 廠商： | Summit Microelectronics, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Distributed Power Hot Swap Controller |
| 中文描述： | 分布式電源熱插拔控制器 |
| 文件頁數(shù)： | 9/19頁 |
| 文件大?。?/td> | 436K |
| 代理商： | SMH4803AS |
9
2051 4.4 3/15/01
SMH4803A
Preliminary
SUMMIT MICROELECTRONICS, Inc.
Resetting FAULT#
When the circuit breaker trips the VGATE output is turned
off and FAULT# is driven low. There are two methods to
reset the circuit breaker which are selectable with the
MODE pin. When MODE is held high or left floating the
circuit breaker is in the duty-cycle mode, and the breaker
resets automatically after a time of t
. When the MODE
pin is held low the circuit breaker can be reset by bringing
RESET# low. T
after bringing RESET# back high again
the VGATE output will attempt to restart the MOSFET slew
control circuitry. In either case, cycling power to the board
will also reset the circuit breaker. If the over current
condition still exists after the MOSFET switches back on
the circuit breaker will re-trip.
Figure 2. Circuit Breaker Cycle Mode, RESET# High
CBSENSE
VGATE
T
CBD
T
CBD
T
CYC
2051 Fig02 1.0
50mV
Figure 3. Circuit Breaker Timing
—
Reset Mode
Figure 4. Circuit Breaker Timing
—
Quick Trip
Figure 5. Under-/Over-Voltage Filter Timing
Figure 6. Effect of Temperature on Current Con-
sumption Over Voltage Range
2051 Fig03 1.0
CBSENSE
RESET#
VGATE
T
CBD
T
PDD
50mV
T
RST
2051 Fig04 1.0
CBSENSE
VGATE
<T
CBD
T
FSTSHTDN
50mV
V
QCB
2051 Fig05 2.0
OV / UV
FAULT#
t
UOFLTR
2.5V
V
IDD (mA)
2051 Fig06
13
12
11
10
9
0
10
12
4
6
8
2
Temp,
o
C
–
40
0
25
85
125
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相關代理商/技術參數(shù) |
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|---|---|
| SMH4803BEK | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Distributed Power Hot-Swap Controller |
| SMH4803BEKP | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Distributed Power Hot-Swap Controller |
| SMH4803BEL | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Distributed Power Hot-Swap Controller |
| SMH4803BELP | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Distributed Power Hot-Swap Controller |
| SMH4803BEM | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Distributed Power Hot-Swap Controller |
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