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參數(shù)資料
| 型號(hào)： | STLC5444 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Quad Feed Power Supply(ISDN四饋電電源) |
| 中文描述： | 四飼料電源（綜合業(yè)務(wù)數(shù)字網(wǎng)四饋電電源） |
| 文件頁數(shù)： | 11/17頁 |
| 文件大?。?/td> | 140K |
| 代理商： | STLC5444 |
The contentsand format of the status groups andthe LER are as follows :
LVD:
Bit
0
1
2
3
Logical 1
O0 low voltage
O1 low voltage
O2 low voltage
O3 low voltage
Logical 0 (default value)
O0 voltage normal
O1 voltage normal
O2 voltage normal
O3 voltage normal
The Low Voltage Detector (LVD) indicates the voltage level on the output lines, even when the lines are
disabled. The low-voltage condition becomes active (logical 1) if the output reaches the Low Voltage
Threshold(VLVD).
LEC:
Bit
0
1
2
3
Logical 1
SWITCH ON
SWITCH ON
SWITCH ON
SWITCH ON
Logical 0
SWITCH OFF
SWITCH OFF
SWITCH OFF
SWITCH OFF
The Line Enable Command (LEC) indicates the statusof the DMOS SWITCH OUTPUT.
OLD:
Bit
0
1
2
3
Logical 1
O0 open loop
O1 open loop
O2 open loop
O3 open loop
Logical 0 (default value)
O0 current normal
O1 current normal
O2 current normal
O3 current normal
The Open Loop Detector (OLD) indicates the open-loop condition on the output lines. The open-loop
condition becomesactive (logical1) if the current on the line drops below the thresholdvalue ISOC.
COD:
Bit
0
1
2
3
Logical 1
Logical 0 (default value)
O0 current normal
O1 current normal
O2 current normal
O3 current normal
O0 current overload
O1 current overload
O2 current overload
O3 current overload
The Current Overload Detector (COD) indicates the current-overload condition on the output lines. The
overload condition becomes active (logical 1) if the output current approaches the value programmed by
an externalresistor between ILIM and VBB.
TOR :
Bit
0
1
2
3
Logical1 (defaultvalue)
O0 operational
O1 operational
O2 operational
O3 operational
Logical 0
O0 off
O1 off
O2 off
O3 off
The Thermal Overload Register (TOR) contains the overload status of the output line drivers. If the de-
vice temperature reaches 130
o
C, then the output line drivers that are in the current-overload condition
will be switched off. The corresponding bits in the TOR will be set to a logical 0. To initialize any of the
bits in the TOR, the microprocessor must first turn off the output line drivers via the LER. However, the
TOR bits cannot be deactivatedif the 160
o
C detectoris active. The
μ
p may re-enable the output drivers
via the LERafter the TOR condition is removed. The TOR is a read-onlyregister.
STLC5444
11/17
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STLC5444B1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD FEEDER POWER SUPPLY |
| STLC5444FN | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD FEEDER POWER SUPPLY |
| STLC5445 | 功能描述:監(jiān)控電路 Asics RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| STLC5460 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LINE CARD INTERFACE CONTROLLER |
| STLC5460FN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
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