sales@hkmjd.com
Service Telephone:86-755-83294757
Trade Name:Power over Ethernet (PoE) Controller
Brand:ADI
Particular Year:21+
Package:QFN-52
Delivery Date:New and Original
Stock: 10000pcs
The LTC4270BIUK is a 12-port Power Sourcing Equipment (PSE) controller designed for use in Power over Ethernet (PoE) systems that comply with the IEEE 802.3at Type 1 and Type 2 specifications (high power). The transformer-isolated communication protocol replaces expensive optocouplers and complex isolated 3.3V power supplies, resulting in significant BOM cost savings. The LTC4270BIUK chip offers industry-low thermal dissipation through the use of low RDS(ON) external MOSFETs and 0.25Ω sense resistors.
Advanced power management features include a 12-bit per port current monitoring ADC, DAC programmable current limits, and universal fast shutdown for pre-selected ports. The Advanced Power Management host software is available with a free licence, and PD Discovery employs a proprietary dual-mode, 4-point detection mechanism that ensures superior protection against PD false detections. Mid-span PSE support is provided with a two-event classification capability and a 2s delay timer.
The LTC4270BIUK includes an I2C serial interface that operates at frequencies up to 1MHz. The LTC4270BIUK has a variety of power stages to provide up to 90W of PD power.
LTC4270BIUK Features
12 independent PSE channels
Compliant with IEEE 802.3at Type 1 and Type 2 standards
Chipset provides galvanic isolation
Reduced bill of materials (BOM) costs
Eliminates up to 6 high-speed optocouplers
Eliminates isolated 3.3V power supply
Low power consumption
0.25Ω detection resistance per channel
Very high reliability 4-point PD detection
Two-point applied voltage
Two-point applied current
VEE and VPORT monitoring
1s rolling IPORT averaging
Supports two and four pairs of output power
1MHz I2C compatible serial control interface
Three power levels are available
Class A - LTPoE++™: 38.7W to 90W
Class B - PoE+: 25.5W
Class C - PoE: 13W
Available in 52-pin 7mm x 8mm (LTC4270) package
LTC4270BIUK Applications
PoE PSE switches/routers
PoE PSE centre span
Model
Brand
Package
Quantity
Describe
ADI
DFN-10
50000
Power over Ethernet Controller (PoE) 1 channel 802.3at (PoE+), 802.3af (PoE), LTPoE++ 10-DFN (3x3)
TI
TSSOP-28
80000
Power over Ethernet Controller (PoE) 4-channel 802.3at (PoE+), 802.3af (PoE) 28-TSSOP
A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.
A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.
A: at present, our self-employed brands TI,ST,ADI,NXP,LATTICE,CYPRESS,INFINEON,XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.
A: You can inquire through the website, or by phone and email.
A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.
A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.
The full name of Analog Devices is Analog Devices, Inc. (ADI). As an outstanding supplier specializing in semiconductor sensors and signal processing ICs, adi regards innovation, performance and excellence as the cultural pillars of the company and ha…
AD90540703J44
The AD90540703J44 is an 8-bit single-chip analog-to-digital converter (ADC), specifically optimized for high speed, low power consumption, small size and ease of use. The AD90540703J44 offers a coding rate of 200 MSPS and a full-power analog bandwidth…AD9273BBCZ-50
The AD9273BBCZ-50 is a 12-bit 50 MSPS analog-to-digital converter (ADC), specifically designed for low-cost, low-power, small-sized and easy-to-use applications. It integrates an eight-channel variable gain amplifier (VGA), a low-noise preamplifier (L…AD9255BCPZ-125
The AD9255BCPZ-125 is a 14-bit, 125 MSPS analog-to-digital converter (ADC) designed to support communication applications that require high performance, low cost, small size and versatility. The following are its main features:Signal-to-noise ratio (S…AD9251BCPZ-80
The AD9251BCPZ-80 is a single-chip, dual-channel, 14-bit, 80 MSPS analog-to-digital converter (ADC) powered by a 1.8V supply, featuring an integrated high-performance sample-and-hold circuit and an on-chip reference voltage source. The AD9251BCPZ-80 a…AD9251BCPZ-65
The AD9251BCPZ-65 is a 14-bit dual-channel analog-to-digital converter (ADC) launched by Analog Devices (ADI), supporting a programmable sampling rate of 65 MSPS. The AD9251BCPZ-65 is powered by a 1.8V supply and features an integrated high-performanc…AD9251BCPZ-40
The AD9251BCPZ-40 is a dual-channel, 14-bit analog-to-digital converter (ADC) launched by Analog Devices (ADI), featuring an LFCSP package and supporting a programmable sampling rate of 40 MSPS. It is suitable for applications in communication, indust…Contact Number:86-755-83294757
Enterprise QQ:1668527835/ 2850151598/ 2850151584/ 2850151585
Business Hours:9:00-18:00
E-mail:sales@hkmjd.com
Company Address:Room1239, Guoli building, Zhenzhong Road, Futian District, Shenzhen, Guangdong
CopyRight ©2022 Copyright belongs to Mingjiada Yue ICP Bei No. 05062024-12
Official QR Code
Links: