PD77728中文資料微芯科技數(shù)據(jù)手冊(cè)PDF規(guī)格書
| 廠商型號(hào) |
PD77728 |
| 功能描述 | 8-Port PoE PSE Manager |
| 文件大小 |
2.04901 Mbytes |
| 頁面數(shù)量 |
44 頁 |
| 生產(chǎn)廠商 | Microchip Technology |
| 企業(yè)簡(jiǎn)稱 |
Microchip【微芯科技】 |
| 中文名稱 | 微芯科技股份有限公司官網(wǎng) |
| 原廠標(biāo)識(shí) |  |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-3-24 20:00:00 |
| 人工找貨 | PD77728價(jià)格和庫存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
PD77728規(guī)格書詳情
Introduction
The PD77728 device is a part of Microchip’s seventh generation IEEE? 802.3bt compliant Power over Ethernet(PoE) Power Sourcing Equipment (PSE) family. This device is a fully integrated 8-port PoE manager with integrated Field Effect Transistor (FET) switches and current sense resistors. Up to 12 devices can be cascaded to provide 48 4-pair ports. The device is available in a 56-pin 8 mm × 8 mm QFN package.
Features
The PD77728 device and PD77728 based PSE have the following key features:
? Supported Standards
– IEEE 802.3bt
? Supported PD Types
– Type 1, Type 2 PDs (802.3af, 802.3at)
– Single-Signature (Type 1–4) PDs
– Dual-Signature (Type 3 and 4) PDs
– Pre-Standard (Legacy) 4-pair PDs
– Supports non-compliant and legacy PDs
? Four Operational Modes
– Controller mode in conjunction with PD77020 PSE Power Management Controller
– Semi-Auto mode
– Managed Auto mode
– Unmanaged Auto mode
? Cascade up to 12 devices to support 96 × 2-pair ports or 48 × 4-pair ports and any 4-pair/2-pair combination
? Device Features
– Stand-Alone device supports up to 8 × 2-pair ports or 4 × 4-pair ports and any 4-pair/2-pair combination
– Per-Port integrated FET, sense resistor, and port diode
– Total port resistance of 160 mΩ
– Device power dissipation ≤ 2W at full load
– Two power rails (55V and 3.3V) for maximum power efficiency
– Guaranteed 4-pair output power of > 90W
– Over Supply Signal (OSS) support
– AutoClass support
– Supports Fast and Perpetual PoE
– MarkHold function support
– Host Interface through I2C Communication
? Real-Time Protection (RTP)
? Measurements
– Per-Port voltage and current measurement
– Accurate main power measurement
? Surge
– Surge up to 2 kV without additional components per IEC61000-4-5-2014
– Surge compliance, ITU-T K.21, GR1089, IE61000-4-5-2014, EN55024
? Up to 10 kV per IEC61000-4-5-2014
? Up to 6 kV per ITU-T K.21
? Physical Characteristics
– Ambient temperature range –40 °C to 85 °C
– 56-pin 8 mm × 8 mm QFN package with thermal pad
– MSL3, RoHS compliant
Applications
The PD77728-based PSE has the following typical applications:
? Campus switches
? Switches and routers for enterprises, small and medium businesses, Small Office Home Office (SOHO), and
commercial markets
? Switches for lighting markets
? PoE injectors
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
NEC |
23+ |
NA/ |
3538 |
原廠直銷,現(xiàn)貨供應(yīng),賬期支持! |
詢價(jià) | ||
FUJIXEROX |
22+ |
PLCC |
3000 |
原裝現(xiàn)貨 |
詢價(jià) | ||
NEC |
23+ |
原廠封裝 |
13528 |
振宏微原裝正品,假一罰百 |
詢價(jià) | ||
NEC |
2310+ |
QFP |
3886 |
優(yōu)勢(shì)代理渠道,原裝現(xiàn)貨,可全系列訂貨 |
詢價(jià) | ||
PRISEMI/芯導(dǎo) |
24+ |
TO-252 |
900000 |
原裝進(jìn)口特價(jià) |
詢價(jià) | ||
NEC |
23+ |
PLCC84 |
1400 |
特價(jià)庫存 |
詢價(jià) | ||
PRISEMI |
2406+ |
TO220 |
11260 |
誠信經(jīng)營(yíng)!進(jìn)口原裝!量大價(jià)優(yōu)! |
詢價(jià) | ||
NEC |
05+ |
原廠原裝 |
512 |
只做全新原裝真實(shí)現(xiàn)貨供應(yīng) |
詢價(jià) | ||
FUJIXEROX |
QFP |
68500 |
一級(jí)代理 原裝正品假一罰十價(jià)格優(yōu)勢(shì)長(zhǎng)期供貨 |
詢價(jià) | |||
24+ |
3000 |
公司存貨 |
詢價(jià) |
