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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Over Ethernet (PoE) Controllers

Microchip Technology PD69210R-034400

Name: PD69210R-034400
Brand: Microchip Technology
SKU: PD69210R-034400
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PD69210R-034400

Manufacturer:: Microchip Technology

Category:: Power Over Ethernet (PoE) Controllers

Package:: 32-VFQFN Exposed Pad

Datasheet:: PD69210R-034400.pdf

Description:: MCU FOR PD692XX FAMILY, BASED PD

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Product details

Overview

PD69210R-034400 from Microchip Technology is a Generation 6 Power over Ethernet (PoE) Power Sourcing Equipment (PSE) controller designed for IEEE 802.3af/at/bt and HDBaseT (PoH) compliant Ethernet switches. It supports up to 48 logical ports, delivers up to 45 W per 2-pair port, and integrates I²C/UART host interface, SPI-based communication with PoE managers (e.g., PD69208T4), and system-level control features including port disable, power good, and interrupt signaling.

For engineers reviewing the PD69210R-034400 datasheet, PD69210R-034400 pinout, PD69210R-034400 application, or PD69210R-034400 equivalent, key selection criteria include its 32-pin QFN 5 mm × 5 mm package, support for dynamic/static/class-based power management per port, fast and perpetual PoE operation, and compatibility with Microchip's PD69208T4/PD69204T4/PD69208M manager ICs in full-system PSE designs.

Technical Context

The PD69210R-034400 implements a firmware-driven architecture based on the SAM D21 microcontroller core, enabling standalone operation or host-coordinated control via I²C (400 kHz, clock stretch supported) or UART (19.2 kbps, 8N1). It manages PoE power delivery through an ESPI interface (1 MHz SCK) to external PoE managers, supporting up to 12 managers per controller using addressable SPI slave mode.

Its hardware design includes dedicated pins for system-level coordination: xDISABLE_PORTS (active-low global port shutdown), xSys_OK (active-low system validity indicator), xINT_OUT (event-triggered interrupt), and LED stream control (xLED_OE, xLED_CS, xLED_LATCH2). The device operates across –40°C to +85°C with VDD = 3.0–3.63 V and VDDA = 3.0–3.63 V, and integrates legacy pre-standard PD detection per port.

Key Specifications

Parameter	Value and Actual Design Meaning
IEEE Standards	Compliant with 802.3af, 802.3at, 802.3bt, and HDBaseT (PoH) - enables full interoperability with Class 0–8 PDs and high-power 4-pair applications.
Logical Ports	Supports up to 48 logical ports - allows scalable integration into enterprise-grade 48-port Ethernet switches without external port expansion logic.
Max Port Power	45 W per 2-pair port - meets IEEE 802.3bt Type 3 requirements, sufficient for powering high-end IP cameras, wireless APs, and thin clients.
Host Interface	I²C (7-bit address, 400 kHz, clock stretch required) or UART (19.2 kbps, 8N1) - provides flexible, low-pin-count host connectivity with standardized 15-byte command/response protocol.
ESPI Interface	SPI master-out-slave-in (MISO), master-out-slave-in (MOSI), 1 MHz SCK, active-low chip select - enables deterministic, high-speed control of up to 12 PoE managers (e.g., PD69208T4) in daisy-chain or parallel topologies.
Operating Temp	–40°C to +85°C ambient - qualified for industrial and telecom infrastructure environments where thermal stability is critical.
Supply Voltage	VDD = 3.0–3.63 V, VDDA = 3.0–3.63 V - compatible with standard 3.3 V system rails; includes internal 1.2 V core regulator (VDD_CORE).

Pinout & Package

PD69210R-034400 is housed in a 32-pin, 5 mm × 5 mm plastic QFN package with exposed thermal pad (ePAD) requiring connection to VSSA for thermal performance. Package conforms to MSL1, RoHS, and Pb-free standards with 260 °C peak reflow profile.

Pin	Circuit Role	Design Meaning
1	Reserved UART	Unused UART function; must be left open - no host connection required.
3	xSys_OK/LED	Active-low system validity output - drives LED or host GPIO to indicate functional PoE subsystem status.
4	xDISABLE_PORTS	Active-low global port shutdown input - asserts low to immediately disable all PoE ports during fault or maintenance.
5	ESPI_MISO	SPI data input from PoE manager - receives configuration/status packets from PD69208T4/PD69204T4/PD69208M.
6	ESPI_SCK	SPI clock output - drives 1 MHz clock to PoE managers and LED stream; shared timing source for synchronized control.
7	ESPI_xCS	Active-low SPI chip select - enables individual PoE manager addressing in multi-manager systems.
8	ESPI_MOSI	SPI data output to PoE manager - transmits port enable/disable, power limit, and detection commands.
13	I2C_ADDR_MEAS	Analog input for UART/I²C mode selection and I²C address setting - voltage divider determines interface and 7-bit address (0x04–0x3C).
15	UART0_TX	UART transmit to host - outputs 15-byte telemetry, status, and event reports at 19.2 kbps.
16	UART0_RX	UART receive from host - accepts 15-byte commands (e.g., port query, power setpoint update); requires 10 kΩ pull-up.
21	I2C0_SDA	I²C bidirectional data line - carries 15-byte protocol messages; requires external 4.7 kΩ pull-up to VDD.
22	I2C0_SCL	I²C clock input - host-driven clock line (max 400 kHz); controller requires clock stretch support from host.
24	xI2C_MESSAGE_READY	Active-low handshake signal - indicates ready-to-read I²C response; enables efficient polling without bus contention.
25	xINT_OUT	Active-low interrupt output - signals port-on, port-fault, voltage-out-of-range, or PoE-device-fault events to host.
26	xRESET	Active-low host reset input / self-reset output - host can force reset; controller asserts low for 100 µs during internal recovery.
27	xLED_LATCH2	Active-low LED stream latch - synchronizes LED data updates across cascaded LED drivers in multi-port systems.
28	VSSD	Digital ground - separate GND plane for digital I/O and SPI/UART/I²C interfaces to minimize noise coupling.
29	VDD_CORE	1.2 V core supply - powers ARM Cortex-M0+ core; requires 1 µF decoupling capacitor to VSSD.
30	VDD	Main 3.3 V supply - powers I/O, peripherals, and internal regulators; requires local 100 nF + 4.7 µF decoupling.
ePAD	Thermal Pad	Exposed copper pad connected to VSSA - mandatory for thermal dissipation; requires ≥65% solder coverage and thermal vias to inner ground planes.

Key Features

Feature	Design Value
Per-port power management	Configurable static/dynamic/class-based limits with automatic disconnect on exceedance - eliminates need for external current-sense amplifiers or protection ICs per port.
Fast PoE boot	Independent power-up sequencing without host initialization - reduces system boot time by enabling PoE delivery before host firmware loads.
Perpetual PoE	Maintains powered state during host firmware upgrade or reset - ensures uninterrupted operation of connected PDs (e.g., security cameras, VoIP phones).
Legacy PD detection	Reduced-capacitance detection per port - supports pre-standard Powered Devices (e.g., early VoIP phones) without compromising IEEE compliance.
LED stream interface	Dedicated SPI-compatible LED control (xLED_OE, xLED_CS, xLED_LATCH2) - enables direct drive of multi-color status LEDs per port without host CPU overhead.

Applications

Enterprise Switching	Industrial IoT Gateway
Use Scenario: 48-port managed Ethernet switch powering IP cameras, wireless access points, and VoIP phones across office buildings. IC Role / Device Role / Timing Role: Central PSE controller coordinating up to 48 logical ports via SPI-connected PD69208T4 managers; handles classification, power negotiation, and fault recovery per IEEE 802.3bt. Use Value: Enables single-chip control of full-switch PoE functionality with dynamic power allocation, reducing BOM count versus discrete controller + manager solutions.	Use Scenario: Ruggedized edge gateway deployed in factory automation, powering sensors, HMIs, and field controllers over PoE. IC Role / Device Role / Timing Role: PSE controller operating in harsh environments with –40°C to +85°C range; uses perpetual PoE to sustain power during firmware updates triggered by OTA patches. Use Value: Eliminates downtime during maintenance cycles - critical for continuous-operation industrial networks where unplanned outages incur production loss.
Smart Building Controller	HDBaseT AV Distribution
Use Scenario: Integrated building management system powering door controllers, occupancy sensors, and lighting nodes via structured cabling. IC Role / Device Role / Timing Role: PSE controller managing mixed-class PDs (Class 1–8) with per-port power limiting and LLDP-based Class power assignment. Use Value: Supports energy-efficient deployment with precise power budgeting - avoids oversizing upstream power supplies while ensuring reliable operation of diverse endpoint devices.	Use Scenario: AV-over-IP encoder/decoder chassis delivering video, audio, control, and power over single CAT6 cable using HDBaseT (PoH). IC Role / Device Role / Timing Role: PSE controller enabling PoH compliance with extended power delivery (up to 45 W) and fast link establishment for low-latency AV streaming. Use Value: Reduces cabling complexity and installation cost by consolidating power and AV signals - eliminates need for separate AC outlets at display endpoints.

Enterprise Switching

Industrial IoT Gateway

Use Scenario: 48-port managed Ethernet switch powering IP cameras, wireless access points, and VoIP phones across office buildings.

IC Role / Device Role / Timing Role: Central PSE controller coordinating up to 48 logical ports via SPI-connected PD69208T4 managers; handles classification, power negotiation, and fault recovery per IEEE 802.3bt.

Use Value: Enables single-chip control of full-switch PoE functionality with dynamic power allocation, reducing BOM count versus discrete controller + manager solutions.

Use Scenario: Ruggedized edge gateway deployed in factory automation, powering sensors, HMIs, and field controllers over PoE.

IC Role / Device Role / Timing Role: PSE controller operating in harsh environments with –40°C to +85°C range; uses perpetual PoE to sustain power during firmware updates triggered by OTA patches.

Use Value: Eliminates downtime during maintenance cycles - critical for continuous-operation industrial networks where unplanned outages incur production loss.

Smart Building Controller

HDBaseT AV Distribution

Use Scenario: Integrated building management system powering door controllers, occupancy sensors, and lighting nodes via structured cabling.

IC Role / Device Role / Timing Role: PSE controller managing mixed-class PDs (Class 1–8) with per-port power limiting and LLDP-based Class power assignment.

Use Value: Supports energy-efficient deployment with precise power budgeting - avoids oversizing upstream power supplies while ensuring reliable operation of diverse endpoint devices.

Use Scenario: AV-over-IP encoder/decoder chassis delivering video, audio, control, and power over single CAT6 cable using HDBaseT (PoH).

IC Role / Device Role / Timing Role: PSE controller enabling PoH compliance with extended power delivery (up to 45 W) and fast link establishment for low-latency AV streaming.

Use Value: Reduces cabling complexity and installation cost by consolidating power and AV signals - eliminates need for separate AC outlets at display endpoints.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PoE PSE controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
PD69220D1VVVV2SS3	Different pinout (32-pin LGA vs. QFN); identical feature set, firmware, and electrical specs - not pin-compatible with PD69210R-034400.	Requires PCB redesign due to LGA footprint and different thermal pad stencil; same system-level functionality and PoE capability.	Select PD69220 only when leveraging its LGA package for improved thermal performance in space-constrained layouts where rework is acceptable.
PD69200D1VVVV2SS3	Generation 5 controller; lacks IEEE 802.3bt support, lower max port count (32 vs. 48), no perpetual PoE or fast PoE features.	Suitable for legacy 802.3af/at-only deployments; cannot replace PD69210R-034400 in new 802.3bt or HDBaseT designs.	Choose PD69200 only for cost-sensitive brownfield upgrades where 802.3bt compliance and 48-port scalability are not required.

Compared with PD69220D1VVVV2SS3 and PD69200D1VVVV2SS3, PD69210R-034400 uniquely combines 48-port 802.3bt support, QFN packaging for manufacturability, and perpetual PoE - making it the optimal choice for new high-density, future-proof PoE switch designs requiring zero-interruption power continuity.

Availability

PD69210R-034400 is available at Aetrix Electronics and suitable for enterprise switching, industrial IoT gateways, smart building controllers, and HDBaseT AV distribution systems requiring stable component supply, long-term lifecycle assurance, and full IEEE 802.3bt compliance.

Supply support for PD69210R-034400 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology Inc. is a leading provider of microcontrollers, analog, FPGA, and connectivity solutions, serving automotive, industrial, communications, and consumer markets with secure, reliable silicon and development tools.

PD69210R-034400 belongs to Microchip's Generation 6 PoE PSE controller family, engineered specifically for high-port-count, multi-standard (802.3af/at/bt + PoH) Ethernet infrastructure requiring integrated power management, fast boot, and firmware-upgradable intelligence.

FAQ

What IEEE PoE standards does PD69210R-034400 support?

PD69210R-034400 supports IEEE 802.3af (PoE), 802.3at (PoE+), 802.3bt (Type 3/4), and HDBaseT (Power over HDBaseT/PoH) standards. It enables full classification, detection, and power delivery for Class 0–8 Powered Devices, including 4-pair operation up to 45 W per port. This makes PD69210R-034400 suitable for next-generation PoE infrastructure where backward compatibility and high-power capability are both required.

Is PD69210R-034400 pin-compatible with earlier Microchip PSE controllers?

No, PD69210R-034400 is not pin-compatible with PD69200, though it shares identical functionality and firmware architecture. Its 32-pin QFN 5 mm × 5 mm footprint differs from PD69200's layout. However, PD69210R-034400 is software-compatible and supports the same 15-byte communication protocol, allowing reuse of host firmware logic with minimal hardware adaptation.

How does PD69210R-034400 handle power management across multiple ports?

PD69210R-034400 implements three configurable power management modes: Class (LLDP-based), Dynamic (real-time load tracking), and Static (fixed per-port limit). Each port can be individually configured with a programmable power ceiling; exceeding that limit triggers automatic disconnect. This granular control eliminates external power monitoring circuitry and enables precise system-level power budgeting for up to 48 logical ports.

What host interfaces does PD69210R-034400 support, and how are they selected?

PD69210R-034400 supports either I²C or UART host communication, selected via analog voltage level on pin 13 (I2C_ADDR_MEAS). A resistor divider sets both the interface mode and the 7-bit I²C address (0x04–0x3C). UART operates at 19.2 kbps (8N1), while I²C runs up to 400 kHz with mandatory clock stretch support - enabling flexible integration with diverse host processors without additional level-shifting or protocol translation.

Does PD69210R-034400 support firmware updates in the field?

Yes, PD69210R-034400 supports field-upgradeable firmware via its I²C or UART interface. Firmware version is encoded in the ordering part number, and updates are performed using Microchip's Configuration Tool and Serial Communication Protocol Guide. This allows OEMs to deploy bug fixes, new features, or regulatory-compliance enhancements post-production without hardware changes - extending product lifecycle and reducing support costs for PD69210R-034400-based systems.

PD69210R-034400 Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 32-VFQFN Exposed Pad

Packaging:: Tray

Product Status:: Active

Type:: Controller (PSE)

Number of Channels:: 48

Power - Max:: 45 W

Internal Switch(s):: No

Auxiliary Sense:: Yes

Standards:: 802.3at (PoE+), 802.3af (PoE), 802.3bt

Voltage - Supply:: 3V ~ 3.63V

Current - Supply:: -

Operating Temperature:: -40°C ~ 85°C (TA)

Mounting Type:: Surface Mount

Supplier Device Package:: 32-QFN (5x5)

PD69210R-034400 FAQ

1.How can I place an order for PD69210R-034400 through Aetrix?

Please submit a Request for Quotation (RFQ) for PD69210R-034400 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PD69210R-034400 reliable?

The price and inventory of PD69210R-034400 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PD69210R-034400 is usually 5 days.

3.What payment methods are accepted for PD69210R-034400?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PD69210R-034400 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PD69210R-034400?

PD69210R-034400 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PD69210R-034400 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PD69210R-034400?

For technical support, including PD69210R-034400 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PD69210R-034400 requirements.

6.How does Aetrix verify that PD69210R-034400 is sourced from the original manufacturer or authorized distributors?

All PD69210R-034400 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PD69210R-034400 meets industry standards.

7.What is the process for return or replacement of PD69210R-034400?

All PD69210R-034400 units undergo pre-shipment inspection (PSI). If there is an issue with PD69210R-034400, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PD69210R-034400 part is unused and in its original packaging.

Return procedure for PD69210R-034400:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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