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Microchip Technology PD39210R-010020
- Part No.:
- PD39210R-010020
- Manufacturer:
- Microchip Technology
- Category:
- Power Over Ethernet (PoE) Controllers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
PD39210R-010020.pdf
- Description:
- MCU FOR PD392XX FAMILY FW VER 1.
- Quantity:
- Payment:
- Shipping:
Inventory:452
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Product details
Overview
PD39210R-010020 from Microchip Technology is a Generation 6 IEEE 802.3af/at Power Sourcing Equipment (PSE) controller IC designed for integration with the PD39208 PSE manager. It supports up to 48 logical ports, delivers up to 30 W per 2-pair port, operates across –40°C to +85°C, and implements per-system power management-enabling compact, high-density PoE switches for enterprise and industrial infrastructure.
For engineers reviewing the PD39210R-010020 datasheet, PD39210R-010020 pinout, PD39210R-010020 application, or PD39210R-010020 equivalent, key selection criteria include its 32-pin 5 mm × 5 mm QFN package, I²C/UART host interface with 15-byte protocol, support for Fast PoE and Perpetual PoE, and compatibility with PD39208-based system architectures.
Technical Context
The PD39210R-010020 implements a firmware-defined PSE control architecture based on the SAM D21 core, executing pre-programmed 802.3af/at classification, detection, and power delivery sequences without requiring host intervention. It communicates with the PD39208 manager via a dedicated 1 MHz SPI interface (ESPI_MISO/ESPI_SCK/ESPI_xCS/ESPI_MOSI) and supports dual-mode host connectivity via configurable I²C or UART (19.2 kbps, 8N1).
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 xLED_LATCH/xLED_CS/xLED_OE for direct LED stream control. Power management is implemented at the system level-not per port-distinguishing it from PD69210/PD69220.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IEEE Standard Support | 802.3af/at only-no 802.3bt or HDBaseT (POH) capability. |
| Max Logical Ports | 48 ports, each built from one physical port (2-pair only). |
| Max Port Power | 30 W per 2-pair port-lower than PD69210's 45 W due to reduced feature set. |
| Power Management Mode | Per-system only-no per-port Class (LLDP), Dynamic, or Static modes. |
| Host Interface Options | I²C (400 kHz, clock stretch required) or UART (19.2 kbps, 8N1); selected by analog voltage on I2C_ADDR_MEAS pin. |
| Operating Temperature | –40°C to +85°C-qualified for industrial-grade deployment. |
| Supply Voltages | VDD/VDDA = 3.0–3.63 V; VDD_CORE = 1.2 V (decoupled with 1 µF capacitor). |
Pinout & Package
The PD39210R-010020 is housed in a 32-pin, 5 mm × 5 mm QFN package with exposed thermal pad (ePAD) connected to VSSA. The package meets RoHS, MSL1, and Pb-free reflow requirements (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 11, 12, 14, 17, 19 | Reserved / NC | Not internally connected or functionally reserved-must be left open or pulled per datasheet guidance (e.g., Pin 2 pulled to 3.3 V via 10 kΩ). |
| 3 (xSys_OK) | System Status Output | Active-low digital signal indicating valid system operation; used to drive LEDs or notify host of fault-free state. |
| 4 (xDISABLE_PORTS) | Global Port Control Input | Active-low input that immediately shuts down all PoE ports-enables emergency power cutoff without host software involvement. |
| 5–8 (ESPI_MISO/SCK/xCS/MOSI) | PoE Manager SPI Interface | Dedicated 4-wire SPI bus to PD39208 manager; SCK runs at fixed 1 MHz; xCS requires external pull-up. |
| 13 (I2C_ADDR_MEAS) | Interface Selection & Address Input | Analog input determining UART vs. I²C mode and setting 7-bit I²C address (0x04 to 0x3C) via resistor divider. |
| 15–16 (UART0_TX/RX) | UART Host Interface | Full-duplex 19.2 kbps UART link using 15-byte command/reply protocol; RX requires external pull-up. |
| 21–22 (I2C0_SDA/SCL) | I²C Host Interface | Bidirectional I²C interface supporting 400 kHz clock; SCL requires host clock-stretch support and external pull-up. |
| 24 (xI2C_MESSAGE_READY) | I²C Response Ready Flag | Active-low handshake signal indicating controller has data ready for host I²C read-eliminates polling delays. |
| 25 (xINT_OUT) | Event Interrupt Output | Active-low open-drain output asserted on pre-configured events (e.g., port fault, classification failure, thermal warning). |
| 26 (xRESET) | Host Reset / Self-Reset | Active-low bidirectional reset line; host can assert reset, and controller can self-initiate 100 µs reset pulse. |
| 27, 23, 18 (xLED_LATCH/CS/OE) | LED Stream Control | Direct SPI-compatible signals driving external LED drivers-enables real-time port status visualization without host CPU load. |
| 9, 10, 28, 30 (VDDA/VSSA/VSSD/VDD) | Power & Ground | VDDA/VDD = 3.3 V analog/digital supply; VSSA/VSSD = separate analog/digital ground planes; ePAD tied to VSSA. |
| 29 (VDD_CORE) | Core Voltage Supply | 1.2 V core supply requiring local 1 µF decoupling to VSSD-critical for stable ARM Cortex-M0+ operation. |
| 31–32 (SWD_CLK/DIO) | Debug Interface | Serial Wire Debug pins for firmware development and field diagnostics; SWD_CLK requires 1 kΩ pull-up to 3.3 V. |
Key Features
| Feature | Design Value |
|---|---|
| Fast PoE | Enables immediate port power-up after cold start-bypassing host initialization delay to reduce boot time in managed switches. |
| Perpetual PoE (PPoE) | Maintains continuous PoE power delivery during host firmware updates or host processor reset-ensuring zero downtime for powered devices. |
| Legacy Detection | Supports pre-standard Powered Devices (PDs) via reduced-capacitance detection-extending compatibility to older VoIP phones and IP cameras. |
| Configurable Port Power Limit | Hardware-enforced per-port current limit; automatic disconnection occurs if exceeded-preventing overcurrent damage without host intervention. |
| LED Stream Interface | Dedicated SPI-like outputs (xLED_LATCH/xLED_CS/xLED_OE) enable direct control of multi-segment LED arrays-reducing BOM cost and host GPIO usage. |
Applications
| Enterprise Network Switches | Industrial IoT Gateways |
|---|---|
|
Use Scenario: 24- or 48-port managed Ethernet switches delivering PoE to IP phones, wireless access points, and security cameras. IC Role / Device Role / Timing Role: PSE controller managing power negotiation, classification, and fault protection for all downstream ports in coordination with PD39208 manager. Use Value: Enables compact 1U switch designs with full 802.3af/at compliance and system-level power budgeting-reducing thermal footprint versus discrete solutions. |
Use Scenario: Ruggedized gateways deployed in factory automation, rail systems, or outdoor surveillance requiring reliable PoE under wide temperature swings. IC Role / Device Role / Timing Role: Industrial-grade PSE controller ensuring uninterrupted power to sensors, HMIs, and edge AI modules despite host reboots or firmware updates. Use Value: Perpetual PoE and –40°C to +85°C operation guarantee zero-power-interruption uptime-critical for mission-critical infrastructure. |
| Smart Building Controllers | Unified Communications Terminals |
|
Use Scenario: HVAC controllers, lighting panels, and access control panels integrating PoE-powered endpoints and local intelligence. IC Role / Device Role / Timing Role: Embedded PSE controller enabling single-cable power+data delivery to distributed sensors and actuators while minimizing wiring complexity. Use Value: Reduces installation labor and cabling costs by consolidating power and Ethernet-supporting scalable building management deployments. |
Use Scenario: Video conferencing systems and desk phones requiring simultaneous high-fidelity audio/video and PoE-powered peripherals. IC Role / Device Role / Timing Role: Low-latency PSE controller delivering stable 30 W per port to support USB-C PD adapters, camera modules, and noise-canceling mics. Use Value: 30 W 2-pair capability meets IEEE 802.3at Class 4 requirements-ensuring full functionality of premium UC endpoints without external power bricks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PSE controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PD69210 | Identical 32-pin QFN package and pinout; supports 802.3bt, HDBaseT, per-port power management, and higher 45 W port power. | Suitable for next-generation 802.3bt-compliant switches and multi-gigabit PoE systems requiring extended feature set. | Select PD69210 when 802.3bt support, per-port LLDP/Dynamic power control, or >30 W port capability is required. |
| PD39210D1VVVV2SS3 | Same silicon die and firmware platform; differs only in ordering suffix encoding firmware revision (VVVV) and parameter options (SS). | No functional difference-used interchangeably where firmware version and configuration match design requirements. | PD39210R-010020 and PD39210D1VVVV2SS3 are identical in electrical, thermal, and functional behavior; selection depends solely on firmware version traceability needs. |
Compared with PD69210, PD39210R-010020 reduces cost and complexity by omitting 802.3bt/HDBaseT support and per-port power modes-making it optimal for cost-sensitive 802.3af/at-only deployments. Compared with PD39210D1VVVV2SS3, PD39210R-010020 reflects the same device with standardized firmware labeling for production traceability.
Availability
PD39210R-010020 is available at Aetrix Electronics and suitable for enterprise network switches, industrial IoT gateways, smart building controllers, and unified communications terminals requiring stable component supply and long-term industrial lifecycle support.
Supply support for PD39210R-010020 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 microcontroller, mixed-signal, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets with secure, reliable semiconductor products.
The PD39210R-010020 belongs to Microchip's Generation 6 PoE PSE controller family-designed specifically for high-density, low-footprint IEEE 802.3af/at power sourcing in managed switches and infrastructure equipment.
FAQ
What IEEE standards does the PD39210R-010020 support?
The PD39210R-010020 supports IEEE 802.3af and 802.3at standards only. It does not support 802.3bt or HDBaseT (POH). This limitation is intentional and documented in the Features Matrix-making PD39210R-010020 suitable for legacy and mid-tier PoE deployments where higher-power standards are unnecessary.
How many PoE ports can the PD39210R-010020 manage?
The PD39210R-010020 supports up to 48 logical ports, each constructed from a single physical 2-pair Ethernet port. Unlike PD69210/PD69220, it does not support 2×physical-port-to-1×logical-port mapping-simplifying design but limiting maximum port density per controller in 4-pair configurations.
Does the PD39210R-010020 require an external microcontroller to operate?
No-the PD39210R-010020 contains pre-programmed firmware enabling autonomous operation for 802.3af/at detection, classification, and power delivery. It can function standalone or optionally interface with a host via I²C or UART for advanced monitoring and configuration-providing flexibility for both simple and complex system architectures.
What is the maximum power per port supported by the PD39210R-010020?
The PD39210R-010020 delivers up to 30 W per 2-pair port, compliant with IEEE 802.3at Class 4. This is lower than the 45 W capability of PD69210 due to its reduced feature set. The 30 W limit is enforced in hardware and cannot be extended via firmware update or configuration change.
Can the PD39210R-010020 be used with the PD39208 PSE manager?
Yes-the PD39210R-010020 is explicitly designed for use with the PD39208 PSE manager. They communicate via a dedicated 1 MHz SPI interface (ESPI_MISO/ESPI_SCK/ESPI_xCS/ESPI_MOSI), forming a complete, optimized chipset for high-port-count 802.3af/at PoE systems as validated in Microchip AN3615.
PD39210R-010020 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Controller (PSE)
- Number of Channels:
- 48
- Power - Max:
- 30 W
- Internal Switch(s):
- No
- Auxiliary Sense:
- No
- Standards:
- 802.3at (PoE+), 802.3af (PoE)
- Voltage - Supply:
- 3V ~ 3.63V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (5x5)
PD39210R-010020 FAQ
1.How can I place an order for PD39210R-010020 through Aetrix?
Please submit a Request for Quotation (RFQ) for PD39210R-010020 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 PD39210R-010020 reliable?
The price and inventory of PD39210R-010020 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PD39210R-010020 is usually 5 days.
3.What payment methods are accepted for PD39210R-010020?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PD39210R-010020 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PD39210R-010020?
PD39210R-010020 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PD39210R-010020 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 PD39210R-010020?
For technical support, including PD39210R-010020 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PD39210R-010020 requirements.
6.How does Aetrix verify that PD39210R-010020 is sourced from the original manufacturer or authorized distributors?
All PD39210R-010020 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 PD39210R-010020 meets industry standards.
7.What is the process for return or replacement of PD39210R-010020?
All PD39210R-010020 units undergo pre-shipment inspection (PSI). If there is an issue with PD39210R-010020, 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 PD39210R-010020 part is unused and in its original packaging.
Return procedure for PD39210R-010020:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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