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參數(shù)資料
| 型號： | STHS4257L1 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | IEEE 802.3af PoE Powered Device (PD) Interface Controller with Integrated Signature Resistor(集成識別電阻的IEEE802.3af PoE PD 接口控制器) |
| 中文描述： | IEEE 802.3af標(biāo)準(zhǔn)的PoE供電設(shè)備（PD）接口控制器，它集成簽名電阻（集成識別電阻的IEEE802.3af標(biāo)準(zhǔn)PoE電源接口控制器） |
| 文件頁數(shù)： | 6/18頁 |
| 文件大?。?/td> | 173K |
| 代理商： | STHS4257L1 |
Summary description
STHS4257A, STHS4257A1, STHS4257L, STHS4257L1
6/18
Figure 1.
Logic diagram
1.
STHS4257A1 and STHS4257L1 devices only.
Signal names
Figure 2.
Pin connections (STHS4257A/L, top view)
Figure 3.
Pin connections (STHS4257A1/L1, top view)
AI12214a
GND
STHS4257A/L
STHS4257A1/L1
V
IN
V
OUT
SIGDISA
(1)
RCLASS
PWRGD
Table 2.
Pin
Symbol
Description
STHS4257A/L STHS4257A1/L1
1, 3, 7
1, 3
NC
No Connect
2
2
R
CLASS
Classification pin
4
4
V
IN
Negative return power line to PSE
5
5
V
OUT
Power Output (negative rail)
6
6
PWRGD
Power Good Output, open drain, active-low (referenced to V
IN
)
—
7
SIGDISA
Signature Disable Input, internally pulled to V
IN
8
8
GND
Positive Power Supply; common input/output power rail
NC
RCLASS
NC
VIN
GND
NC
VOUT
AI12204b
PWRGD
1
2
3
4
8
7
6
5
NC
RCLASS
NC
VIN
GND
SIGDISA
VOUT
AI12205b
PWRGD
1
2
3
4
8
7
6
5
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PDF描述 |
|---|---|
| STHS4257A | IEEE 802.3af PoE Powered Device (PD) Interface Controller with Integrated Signature Resistor(集成識別電阻的IEEE802.3af PoE PD 接口控制器) |
| STHS4257A1 | IEEE 802.3af PoE Powered Device (PD) Interface Controller with Integrated Signature Resistor(集成識別電阻的IEEE802.3af PoE PD 接口控制器) |
| STHS4257L | IEEE 802.3af PoE Powered Device (PD) Interface Controller with Integrated Signature Resistor(集成識別電阻的IEEE802.3af PoE PD 接口控制器) |
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