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Microchip Technology PD69208MILQ-TR-LE
- Part No.:
- PD69208MILQ-TR-LE
- Manufacturer:
- Microchip Technology
- Category:
- Power Over Ethernet (PoE) Controllers
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
PD69208MILQ-TR-LE.pdf
- Description:
- IEEE PSE MANAGER 802.3AT / BT TY
- Quantity:
- Payment:
- Shipping:
Inventory:8,134
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Product details
Overview
PD69208MILQ-TR-LE from Microchip Technology is an IEEE 802.3af/at/bt and Power over HDBaseT (PoH) Power Sourcing Equipment (PSE) manager IC with 8 PoE ports, 60 W maximum output power, and integrated 3.3 V/5 V regulators - used in conjunction with a PSE controller or Ethernet switch processor to implement enterprise-grade PoE midspans and switches.
For engineers reviewing the PD69208MILQ-TR-LE datasheet, PD69208MILQ-TR-LE pinout, PD69208MILQ-TR-LE application, or PD69208MILQ-TR-LE equivalent, key selection criteria include port count (8), PSE type support (Type 3), real-time current monitoring accuracy (±3.5% >350 mA), thermal shutdown threshold (125 °C max junction), and SPI slave interface compatibility (1 MHz, ADDR0–ADDR3 addressable).
Technical Context
The PD69208MILQ-TR-LE implements a digital state-machine–driven PSE control architecture with dedicated analog blocks for PD detection (4-level voltage sweep), classification (single/multi-event per IEEE 802.3bt), and real-time port protection (inrush limiting, overload timing, disconnect signature validation). It supports cascade configurations up to 12 devices for 48 logical ports.
Its functional integration includes a 10-bit ADC for port voltage/current monitoring (3 ms measurement period), built-in 3.3 V/5 V regulators (VAUX3P3: 3.0–3.6 V, 5 mA typical; VAUX5: 4.5–5.5 V), and thermal sensing with ±3 °C accuracy - all operating across –40 °C to +85 °C industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Ports per IC | 8 independent PoE ports - enables compact 8-port PSE designs without external port expansion logic. |
| Max output power | 60 W total - compliant with IEEE 802.3bt Type 3 PSE classification and UL LPS limits. |
| Operating voltage (VMAIN) | 44–57 V - matches standard PoE midspan/supply rails; absolute max 72 V. |
| Port current limit (ILIM) | 1020–1300 mA - configurable per IEEE 802.3bt Class 7–8/PoH; ensures safe power delivery under load. |
| Current monitoring accuracy | ±3.5% for IPORT >350 mA - enables precise per-port power budgeting and fault discrimination. |
| Digital interface | SPI slave, 1 MHz max - supports daisy-chained or parallel multi-manager topologies with 12 unique addresses (ADDR0–ADDR3). |
| Thermal protection | Junction shutdown at 125 °C - prevents thermal runaway during sustained high-power operation. |
Pinout & Package
PD69208MILQ-TR-LE is housed in an 8 mm × 8 mm, 56-pin plastic QFN package with exposed thermal pad (EPAD) connected to AGND. The package meets MSL3 and RoHS requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VPORT_NEG0–VPORT_NEG7 | Analog I/O (8 pairs) | Negative-side port outputs - each pair drives one PoE port's return path; supports 2-pair or 4-pair configurations. |
| VMAIN | Power input | Main high-voltage PoE supply input (44–57 V); requires local 1 µF low-ESR bypass to AGND. |
| VAUX5 / VAUX3P3 | Regulated power outputs | Integrated 5 V (±10%) and 3.3 V (±10%) supplies - powers internal logic and external circuitry without external regulators. |
| SPI pins (CS_N, SCK, MOSI, MISO) | Digital interface | Full-duplex SPI slave interface - enables host MCU to configure ports, read status, and manage power banks. |
| ADDR0–ADDR3 | Address inputs | 4-bit hardware address select - allows up to 12 uniquely addressed PD69208MILQ-TR-LE units on one SPI bus. |
| PGD0–PGD3 | Digital inputs | Power-good signals - monitor system rail stability before enabling PoE port sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| IEEE 802.3bt Type 3 PSE support | Enables full Class 5–8 PD powering (up to 60 W/port) with multi-event classification and fast disconnect. |
| Real-time port protection | Hardware-accelerated inrush limiting (425 mA typ, 65 ms), overload detection (64 ms timeout), and DC disconnect (7.5 mA under-load threshold). |
| Cascade scalability | Supports up to 12 PD69208MILQ-TR-LE units for 48 logical ports - eliminates need for external arbitration logic. |
| Emergency power management | 16 configurable power banks - allows dynamic re-allocation of power during brownout or overload events. |
| Field-upgradable firmware | Enables post-deployment updates to detection algorithms, classification tables, and protection thresholds via SPI. |
Applications
| Enterprise PoE Switches | Industrial PoE Midspans |
|---|---|
Use Scenario: 8-port managed Ethernet switch delivering power to VoIP phones, wireless APs, and IP cameras in office environments. IC Role / Device Role / Timing Role: PSE manager coordinating detection, classification, and real-time monitoring of all 8 ports under IEEE 802.3bt compliance. Use Value: Enables single-chip 8-port Type 3 PSE implementation with <60 W total power budget and automatic bank-based emergency power redistribution. |
Use Scenario: DIN-rail mounted midspan powering ruggedized IP cameras and sensors in factory automation networks. IC Role / Device Role / Timing Role: Centralized PoE power controller interfacing with external MCU to manage port startup, thermal derating, and fault logging. Use Value: Delivers -40 °C to +85 °C operation, IEC62368-1 Ed.2 compliance support (>250 W system), and robust ESD immunity (±2 kV HBM). |
| Smart LED Lighting Hubs | Video Surveillance NVRs |
Use Scenario: PoE-powered LED lighting controller managing multiple luminaires with dimming and scheduling via DALI or 0–10 V interfaces. IC Role / Device Role / Timing Role: PSE manager providing stable 60 W aggregate power while monitoring per-port current for predictive maintenance. Use Value: Integrates 3.3 V/5 V regulation and 10-bit ADC - eliminates external LDOs and reduces BOM count by ≥3 components per port. |
Use Scenario: Network video recorder with integrated PoE ports powering 4–8 HD security cameras in retail or transportation settings. IC Role / Device Role / Timing Role: High-accuracy port supervisor detecting disconnect signatures (TMPDO = 324 ms) and maintaining maintain power (TMPS = 48 ms) per IEEE 802.3bt. Use Value: Ensures uninterrupted camera operation during transient faults and supports Fast PoE reconnection (<500 ms port recovery). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PoE PSE manager applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PD69208T4-TR-LE | Same 8-port architecture but supports Type 4 PSE (95 W), higher ILIM (1150 mA), and extended current monitoring accuracy (±1.5% >800 mA). | Required for full IEEE 802.3bt Class 8 (90+ W) deployments; not suitable where 60 W ceiling suffices. | Select PD69208T4-TR-LE only when >60 W per port or tighter current accuracy is mandatory. |
| PD69204T4-TR-LE | 4-port variant with identical feature set, same 95 W max output, and matching SPI interface/addressing scheme. | Used in cost-optimized 4-port systems or modular chassis where port density is halved to reduce thermal load. | Choose PD69204T4-TR-LE when board space or thermal envelope constraints favor lower port count. |
Compared with PD69208T4-TR-LE and PD69204T4-TR-LE, the PD69208MILQ-TR-LE delivers optimal balance of port count (8), power class (Type 3), and thermal efficiency for mid-tier enterprise and industrial PoE infrastructure - avoiding over-specification while ensuring full IEEE 802.3bt compliance and field upgradeability.
Availability
PD69208MILQ-TR-LE is available at Aetrix Electronics and suitable for enterprise PoE switches, industrial midspans, and smart lighting hubs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for PD69208MILQ-TR-LE 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 global semiconductor company specializing in microcontrollers, analog devices, FPGAs, and connectivity solutions for industrial, automotive, and communications markets.
The PD69208MILQ-TR-LE belongs to Microchip's Generation 6 PoE PSE Manager family, designed specifically for scalable, standards-compliant Power over Ethernet infrastructure with emphasis on thermal resilience, cascade flexibility, and field-upgradable intelligence.
FAQ
What is the maximum number of PD69208MILQ-TR-LE devices that can be cascaded in a single system?
The PD69208MILQ-TR-LE supports cascading up to 12 units for a total of 48 logical PoE ports. This is achieved via its SPI slave interface with hardware-addressable ADDR0–ADDR3 pins, allowing unique addressing across the bus without external multiplexing. Each PD69208MILQ-TR-LE retains independent port control and real-time monitoring capability in the cascade configuration.
Does PD69208MILQ-TR-LE support legacy (non-standard) PD detection?
Yes, PD69208MILQ-TR-LE supports legacy and pre-standard PD detection when enabled. Its detection generator applies four distinct voltage levels to ensure reliable identification of non-IEEE-compliant powered devices alongside full IEEE 802.3af/at/bt and PoH-compliant equipment - critical for backward compatibility in mixed-device deployments.
What is the accuracy of port current monitoring for PD69208MILQ-TR-LE at 400 mA load?
At 400 mA, PD69208MILQ-TR-LE provides ±3.5% current monitoring accuracy, as specified for IPORT >350 mA in the electrical characteristics table. This is achieved using its integrated 10-bit ADC with 122.07 µA LSB resolution and calibrated measurement path - sufficient for precise per-port power budgeting and overload discrimination.
Can PD69208MILQ-TR-LE operate without external 3.3 V or 5 V regulators?
Yes, PD69208MILQ-TR-LE integrates internal 3.3 V and 5 V regulators. VAUX3P3 delivers 3.0–3.6 V (5 mA typical), and VAUX5 delivers 4.5–5.5 V - both with required decoupling capacitors (4.7 µF minimum). External regulators are optional and only needed if higher current or tighter tolerance is required beyond the IC's native capabilities.
What thermal protection mechanisms does PD69208MILQ-TR-LE implement?
PD69208MILQ-TR-LE incorporates dual thermal safeguards: continuous die temperature monitoring via an on-chip sensor (±3 °C accuracy, 3 ms update rate) and hardware-triggered over-temperature shutdown at 125 °C junction temperature. Thermal data is accessible via SPI register reads, enabling host MCU–driven derating or fan control before shutdown occurs.
PD69208MILQ-TR-LE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Controller (PSE)
- Number of Channels:
- 8
- Power - Max:
- 90 W
- Internal Switch(s):
- Yes
- Auxiliary Sense:
- Yes
- Standards:
- 802.3at (PoE+), 802.3af (PoE), 802.3bt
- Voltage - Supply:
- 32V ~ 57V
- Current - Supply:
- 14mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-QFN (8x8)
PD69208MILQ-TR-LE FAQ
1.How can I place an order for PD69208MILQ-TR-LE through Aetrix?
Please submit a Request for Quotation (RFQ) for PD69208MILQ-TR-LE 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 PD69208MILQ-TR-LE reliable?
The price and inventory of PD69208MILQ-TR-LE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PD69208MILQ-TR-LE is usually 5 days.
3.What payment methods are accepted for PD69208MILQ-TR-LE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PD69208MILQ-TR-LE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PD69208MILQ-TR-LE?
PD69208MILQ-TR-LE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PD69208MILQ-TR-LE 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 PD69208MILQ-TR-LE?
For technical support, including PD69208MILQ-TR-LE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PD69208MILQ-TR-LE requirements.
6.How does Aetrix verify that PD69208MILQ-TR-LE is sourced from the original manufacturer or authorized distributors?
All PD69208MILQ-TR-LE 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 PD69208MILQ-TR-LE meets industry standards.
7.What is the process for return or replacement of PD69208MILQ-TR-LE?
All PD69208MILQ-TR-LE units undergo pre-shipment inspection (PSI). If there is an issue with PD69208MILQ-TR-LE, 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 PD69208MILQ-TR-LE part is unused and in its original packaging.
Return procedure for PD69208MILQ-TR-LE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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