Low

LT4321IUF#PBF - 

Special Function IC, Ideal Diode Controller, 20 V to 80 V in, QFN-16

LT4321IUF#PBF - Special Function IC, Ideal Diode Controller, 20 V to 80 V in, QFN-16

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
LT4321IUF#PBF
Order Code:
2366004
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LT4321IUF#PBF is a dual Ideal Diode Bridge Controller that enables a power over Ethernet (PoE) powered device (PD) to receive power in either voltage polarity from RJ-45 data pairs, spare pairs or both. The LT4321 and eight N-channel MOSFETs replace the eight diodes in a passive PoE rectifier bridge. The LT4321 eases thermal design and increases delivered power. An internal charge pump allows an all-NMOS bridge eliminating larger and more costly PMOS switches. High impedance input sense pins prevent reverse current on unused pairs. If the power source fails or is shorted, a fast turn-OFF minimizes reverse current transients. Unlike discrete ideal bridge solutions, the LT4321 will operate through transients without enabling the MOSFETs on unpowered pairs.
  • Reduces heat, eliminates thermal design problems
  • Maximizes power efficiency
  • Less than 800µA quiescent operating current
  • Fully compatible with IEEE 802.3 detection and classification
  • IEEE 802.3 compliant when paired with a Powered Device (PD) controller
  • Works with 2-pair and 4-pair PoE applications
  • Compatible with PoE, PoE+ and LTPoE++™
  • Green product and no Sb/Br

Applications

Communications & Networking, Signal Processing, Power Management

Product Information

:
Ideal Diode Controller
:
20V
:
80V
:
QFN
:
16Pins
:
-40°C
:
85°C
:
Each
:
-
:
-
:
MSL 1 - Unlimited
Find similar products Choose and modify the attributes above to find similar products.

Alternatives

Compare Selected
Manufacturer Part Number
Order Code
Manufacturer / Description
Avail
Price For
Quantity

Related Searches

 

27 In stock

27 in stock for next day delivery (UK stock)

see cut-off times
 
Check stock and lead times
More stock available week commencing 15/10/18
£5.29 £ 5.29
Price for:
Each
Multiple: 1 Minimum: 1
Quantity Price
1 + £5.29
25 + £3.20
100 + £2.92
No longer stocked:: No Longer Manufactured::
Add to Basket
Total Price:
Total Price: ( )
Total Price: --

Customer Reviews

Community

Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.

Filters:

Select document type(s) you want to see and click “Apply Filters” button
Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.