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參數資料
| 型號： | STHS2377L |
| 廠商： | 意法半導體 |
| 英文描述： | IEEE 802.3af PoE Powered Device (PD) Interface Controller(IEEE802.3af PoE PD(受電設備)接口控制器) |
| 中文描述： | IEEE 802.3af標準的PoE供電設備（PD）接口控制器（IEEE802.3af標準的PoE（私隱受電設備）接口控制器） |
| 文件頁數： | 1/20頁 |
| 文件大小： | 187K |
| 代理商： | STHS2377L |
July 2007
Rev 4
1/20
1
STHS2375A, STHS2375L, STHS2376A,
STHS2376L, STHS2377A, STHS2377L
IEEE 802.3af PoE Powered Device (PD) interface controller
Features
■
IEEE 802.3af-compliant interface for Powered
Devices (PDs)
■
Integrated 100V, 500mA power MOSFET
■
Resistor-programmable inrush current limit
■
Normal operation current limit 460mA
■
External 25k
Ω
signature resistor
■
Resistor-programmable classification current
(Class 0-4)
■
Power Good output (active-high), open drain
■
Undervoltage Lockout (UVLO) - standard,
programmable, and legacy (see
Table 1
)
■
Thermal overload protection
■
Latch (L) or auto-retry (A) after hard current
overload or repetitive thermal overload
■
Industrial temperature range: –40 to +85°C
■
8-pin SO and 8-pin TSSOP packages
■
RoHS compliant
Applications
■
Voice over IP (VOIP) phones
■
Web cameras
■
WLAN access points
■
Internet appliances
■
POS terminals
■
RFID readers
SO8 (M)
8
1
TSSOP8 (DW)
Table 1.
Device options
Order code
External
signature
resistor (1%)
UVLO
UVLO
threshold,
rising (V)
UVLO
threshold,
falling (V)
Protection
mode
STHS2375A
24.9k
Ω
Standard
39.3
30.5
Auto
STHS2375L
24.9k
Ω
Standard
39.3
30.5
Latch
STHS2376A
24.9k
Ω
Programmable
2.49
1.93
Auto
STHS2376L
24.9k
Ω
Programmable
2.49
1.93
Latch
STHS2377A
24.9k
Ω
Legacy
35.1
30.5
Auto
STHS2377L
24.9k
Ω
Legacy
35.1
30.5
Latch
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