PD39210 Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
PD39210 is a Microchip IEEE 802.3bt Power over Ethernet PSE controller supporting up to 90 W Type 4 PD power delivery with integrated detection and classification. It manages 2 ports with Class 0–8 support and is housed in a Quad Flat No-Lead package. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Datasheet
- PD39210 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PD39210?
- IEEE 802.3bt Type 4 compliant PSE controller delivers up to 90 W per port, supporting Class 8 powered devices such as pan-tilt cameras and wireless access points
- Dual-port architecture with independent detection, classification, and current-limit control minimizes external component count for 2-port PoE switches and midspans
- Integrated hardware Class 0 to 8 detection and physical-layer fault management reduces firmware complexity and speeds time-to-market for PoE PSE designs
What is PD39210 used for?
The PD39210 is used in enterprise network switches, PoE injectors, and industrial Ethernet equipment requiring reliable IEEE 802.3bt Type 3 or Type 4 power delivery to high-wattage PDs such as 802.11ax access points, IP cameras with pan-tilt-zoom, and VoIP endpoints. Its dual-port PSE controller simplifies 2-port midspan designs by integrating detection, classification, and power management, reducing external component count and board area. Industrial automation panels deploy the PD39210 to power IP cameras and sensors at distances up to 100 m over Cat5e or Cat6 cabling without local power supplies.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for PD39210?
Compatible alternatives and drop-in replacements for PD39210:
Frequently Asked Questions
How much power per port can the PD39210 deliver, and which IEEE 802.3bt power classes does it support?
The PD39210 supports IEEE 802.3bt Type 4 operation, delivering up to 90 W of PoE power per port at the PSE. It handles Class 0 through Class 8 powered devices, covering everything from 15.4 W Class 0 legacy IP phones to 90 W Class 8 high-power PDs such as 802.11ax tri-band access points and motorized PTZ cameras. Dual-signature detection for 4-pair PDs is included, compliant with the full 802.3bt 2018 standard.
How many PoE ports does the PD39210 manage, and what external components are needed for a complete 2-port PSE implementation?
The PD39210 manages 2 independent PoE ports from a single IC, integrating detection comparators, classification current source, and current-limit amplifiers internally. A complete 2-port PSE circuit typically requires only external sense resistors of approximately 0.25 Ω, gate-drive MOSFETs, and a bypass capacitor on each power supply rail — reducing the external BOM to roughly 10 passive components per port compared to discrete implementations requiring 30 or more components.
In an industrial automation panel using long cable runs, how does the PD39210 handle cable resistance and maintain stable power delivery to remote sensors?
The PD39210 PSE controller implements IEEE 802.3bt compliant power allocation based on physical-layer class negotiation, compensating for cable resistance by programming the port current limit to deliver the classified power at the PD connector end of up to 100 m of Cat5e cabling. At 90 W Class 8 operation over 100 m of Cat6 with approximately 12.5 Ω round-trip resistance, the PSE output voltage is automatically adjusted to maintain the minimum 42.5 V at the PD, ensuring reliable power delivery to remote IP cameras and industrial sensors across the full cable length.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Microchip
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit