- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384922 > SMH4814NR01 (Summit Microelectronics, Inc.) Dual Feed Active-ORing Programmable Hot Swap Controller PDF資料下載
參數(shù)資料
| 型號： | SMH4814NR01 |
| 廠商： | Summit Microelectronics, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Dual Feed Active-ORing Programmable Hot Swap Controller |
| 中文描述： | 雙飼料有源ORing提供可編程熱插拔控制器 |
| 文件頁數(shù)： | 18/44頁 |
| 文件大?。?/td> | 935K |
| 代理商： | SMH4814NR01 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁當前第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁
SMH4814
Preliminary Information
Summit Microelectronics, Inc
2080 2.0 07/21/05
18
In the case when Current Regulation is enabled and
CBSENSE exceeds V
QCB
before the circuitry has time
to modulate VGATE_HS, the Quick-Trip circuit assists
the modulation by pulling down on the gate
immediately. Rather than pull all the way to VSS, the
Quick-Trip circuitry may also be configured to only pull
down to within one, two or three diode of VSS
(R05[7:6]). Once CBSENSE falls back below V
QCB
,
the pull-down circuitry will shut off. By this point, the
Current Regulation circuit will have had time to
activate, and VGATE_HS will be modulated to keep
the CBSENSE level at V
CR
. Figure 11 and Figure 12
illustrate the current regulation function.
VGATE_HS
12V
0V
0V
V
CB
V
QCB
t
CBD
<t
PCR
CBSENSE
V
CR
Figure 11 - Current Regulation With Recovery
VGATE_HS
12V
CBSENSE
0V
0V
V
CB
V
QCB
t
PCR
V
CR
Figure 12 - Current Regulation Without Recovery
Resetting FAULT#
When the circuit breaker trips and, in the case in which
current regulation is enabled, t
PCR
times out, the
VGATE_HS and PUP outputs are turned off and
FAULT# is driven low. Other events may also be
configured to cause a Fault, as determined by
R0D[3:0] and R10[7:4]. Once a Fault has occurred,
the SMH4814 may be configured (using R05[2]) to
either restart on its own after a programmable cooling
off period of t
CYC
(Figure 13), or it may be configured to
stay latched off until the Fault is manually reset (Figure
14). The duty cycle timeout period t
CYC
is set using
R03[7:4] and can range from 7ms to 21.5s. The Fault
condition may be manually reset by driving RESET#
low, or through the use of the Command Register.
VGATE_HS
V
CB
t
CYC
t
CBD
t
CBD
CBSENSE
Figure 13 - Circuit Breaker Duty Cycle Operation
with RESET# High
CBSENSE
t
CBRST
V
CB
t
PDD
t
CBD
RESET#
VGATE_HS
Figure 14 - Circuit Breaker Reset with RESET#
APPLICATIONS INFORMATION (CONTINUED)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SMH4814NR02 | Dual Feed Active-ORing Programmable Hot Swap Controller |
| SMH4814NR03 | Dual Feed Active-ORing Programmable Hot Swap Controller |
| SMH4814NR04 | Dual Feed Active-ORing Programmable Hot Swap Controller |
| SMH4814NR05 | Dual Feed Active-ORing Programmable Hot Swap Controller |
| SMH4814SCR00 | Dual Feed Active-ORing Programmable Hot Swap Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SMH4814NR02 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Dual Feed Active-ORing Programmable Hot Swap Controller |
| SMH4814NR03 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Dual Feed Active-ORing Programmable Hot Swap Controller |
| SMH4814NR04 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Dual Feed Active-ORing Programmable Hot Swap Controller |
| SMH4814NR05 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Dual Feed Active-ORing Programmable Hot Swap Controller |
| SMH4814SCR00 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Dual Feed Active-ORing Programmable Hot Swap Controller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。