PD69104B1ILQ-TR - 4-Port PoE+ PSE Manager | Microchip Technology
N.º da peça: PD69104B1ILQ-TR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $13.13 | $13,13 |
| 10 | $11.95 | $119,50 |
| 100 | $10.42 | $1.042,00 |
| 500 | $9.18 | $4.590,00 |
| 1.000 | $8.05 | $8.050,00 |
PD69104B1ILQ-TR Visão geral
A PoE PSE controller (sometimes called a 'PoE manager') is the active device that injects DC power onto specific wire pairs of a Cat-5e/Cat-6 cable while a Powered Device (PD) negotiates its power class. PoE controllers sit at the intersection of the power management IC hierarchy and the interface IC family: they manage high-voltage FETs, perform IEEE 802.3af/at handshakes (detection, classification, inrush, disconnect), and present an I2C/SPI management interface to the host switch CPU. The PD69104B1ILQ-TR targets four-port switch and midspan designs, reducing per-port BOM by integrating four independent current-limited outputs and one shared management interface.
Key features include support for 802.3af, 802.3at (Type 2, 30 W), and UPoE (60 W Type 3 over 4-pair) modes, autonomous or host-managed operation via I2C, per-port current limiting, overload and short-circuit protection, and an internal MOSFET gate driver for each port. The 48-QFN EP package provides an exposed thermal pad for improved heat dissipation in 1 Gbit/10 Gbit switch chassis with limited airflow.
Architecturally, the PD69104B1 uses four integrated analog front-ends sampling current and voltage per port, a digital engine handling the IEEE 802.3 handshake, and a host-management block exposing status/interrupt pins. Its mixed-signal design eliminates the need for an external MCU per port and lets a single Ethernet switch ASIC orchestrate all four ports.
Typical applications include 4-port PoE+ Ethernet switches, industrial midspans, IP-camera and VoIP-phone power sourcing, Wi-Fi access-point switches, and small-cell / IoT gateways requiring class-4 power delivery. The wide 44-57 V input tolerance also supports 48 V telecom and industrial bus rails.
Design tip: maintain at least 100 mil of copper pour under the exposed thermal pad and keep the 0.1 uF Vcap bypass within 5 mm of the AGND pin to keep port-noise coupling low. Choose the B1 over the original PD69104 when UPoE (60 W) capability is required; the legacy die is limited to 802.3at.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers an engineering-centric reference beyond what the bare Microchip datasheet provides.
Alternativas drop-in para PD69104B1ILQ-TR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PD69104B2ILQ-TR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
PD69204ILQ-TR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
PD69104B1ILQ
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PD69104B1ILQ-TR Classificações máximas e características elétricas
| Product Type | PoE PSE Controller / Power Manager |
| Number of Ports | 4 |
| Supply Voltage Range | 44 V to 57 V (PoE+) |
| PoE Standard Support | IEEE 802.3af, IEEE 802.3at (PoE+), UPoE |
| Maximum Per-Port Power | 30 W (Type 2) / 60 W (UPoE, Type 3) |
| Temperatura de operação | -40 C to +85 C |
| Encapsulamento | 48-QFN EP (8x8 mm) |
| Contagem de pinos | 48 |
| Tipo de montagem | Surface Mount |
| Host Interface | I2C / SPI (host-managed) or autonomous |
| Internal Gate Driver | Yes (per port) |
| Status RoHS | Compliant |
| Nível MSL | 3 |
| Lead-Free | Yes |
Configuração de pinos do PD69104B1ILQ-TR
| Pino 1 | VP1 — Port 1 Voltage Sense |
| Pino 2 | GATE1 — Port 1 External MOSFET Gate Driver |
| Pino 3 | DRAIN1 — Port 1 Drain Sense |
| Pino 4 | GND — Ground |
| Pino 5 | VP2 — Port 2 Voltage Sense |
| Pino 6 | GATE2 — Port 2 External MOSFET Gate Driver |
| Pino 7 | DRAIN2 — Port 2 Drain Sense |
| Pino 8 | VCC — Logic Supply |
| Pino 9 | AGND — Analog Ground |
| Pino 10 | VP3 — Port 3 Voltage Sense |
| Pino 11 | GATE3 — Port 3 External MOSFET Gate Driver |
| Pino 12 | DRAIN3 — Port 3 Drain Sense |
| Pino 13 | NC — Not connected (per datasheet) |
| Pino 14 | VP4 — Port 4 Voltage Sense |
| Pino 15 | GATE4 — Port 4 External MOSFET Gate Driver |
| Pino 16 | DRAIN4 — Port 4 Drain Sense |
| Pino 17 | RESETn — Active-low reset |
| Pino 18 | INTn — Interrupt output (active low) |
| Pino 19 | SDA — I2C Data |
| Pino 20 | SCL — I2C Clock |
| Pino 21 | AD0 — I2C Address LSB |
| Pino 22 | AD1 — I2C Address Bit |
| Pino 23 | AD2 — I2C Address Bit |
| Pino 24 | AD3 — I2C Address MSB |
| Pino 25 | VMAIN — Main 44-57 V Supply |
| Pino 26 | VMAIN — Main 44-57 V Supply |
| Pino 27 | VMAIN — Main 44-57 V Supply |
| Pino 28 | GND — Ground |
| Pino 29 | GND — Ground |
| Pino 30 | NC — Not connected (per datasheet) |
| Pino 31 | LED1 — Port 1 Status LED Driver |
| Pino 32 | LED2 — Port 2 Status LED Driver |
| Pino 33 | LED3 — Port 3 Status LED Driver |
| Pino 34 | LED4 — Port 4 Status LED Driver |
| Pino 35 | AC_OK — Adapter power OK input |
| Pino 36 | AUX_DET — Auxiliary detection |
| Pino 37 | SHDn — Shutdown input |
| Pino 38 | TEST — Test mode (factory only) |
| Pino 39 | NC — Not connected (per datasheet) |
| Pino 40 | XIN — Crystal oscillator input |
| Pino 41 | XOUT — Crystal oscillator output |
| Pino 42 | VCC_3V3 — Internal 3.3 V LDO output |
| Pino 43 | DGND — Digital ground |
| Pino 44 | I2C_SPI — I2C / SPI mode select |
| Pino 45 | MOSI — SPI MOSI (or NC in I2C mode) |
| Pino 46 | MISO — SPI MISO (or NC in I2C mode) |
| Pino 47 | SCK — SPI Clock (or NC in I2C mode) |
| Pino 48 | CSn — SPI Chip Select (or NC in I2C mode) |
Aplicações típicas
PD69104B1ILQ-TR é adequado para 6 aplicaçãos: 4-Port PoE+ Ethernet Switch, Industrial PoE Midspan, IP-Camera and Surveillance Power Sourcing, Wi-Fi Access Point Switches, VoIP Phone Power Sourcing, Small-Cell and IoT Gateway PoE.
4-Port PoE+ Ethernet Switch
The PD69104B1ILQ-TR is purpose-built for 4-port managed PoE+ Ethernet switches where one controller per switch is the most economical topology. It supports IEEE 802.3af/at (Type 1, 15.4 W and Type 2, 30 W) and UPoE (60 W Type 3 over 4-pair), so a single switch can power IP cameras, VoIP phones, Wi-Fi 6 access points, and lighting controllers from one 48 V rail. The integrated I2C/SPI host interface lets the switch ASIC poll per-port status, while autonomous mode lets a low-cost MCU-less switch design run without software. Each port has built-in detection, classification, and current-limit, eliminating external sense resistors.
Recomendado
Industrial PoE Midspan
Industrial PoE midspans inject 48 V power onto existing Ethernet cabling to upgrade legacy switches into PoE-capable systems. The PD69104B1ILQ-TR's 44 V to 57 V supply tolerance and -40 C to +85 C industrial temperature grade make it ideal for hardened midspan chassis in factory floors and outdoor cabinets. Each of the 4 ports delivers up to 30 W (PoE+) or 60 W (UPoE) while the integrated gate driver controls external pass MOSFETs for high-current delivery. The exposed thermal pad supports fan-less convection cooling at 4 ports simultaneously delivering 30 W each.
Recomendado
IP-Camera and Surveillance Power Sourcing
Modern 4K IP cameras and PTZ dome cameras regularly draw 25-30 W, exceeding the original 802.3af 15.4 W budget. The PD69104B1ILQ-TR supports Type 2 (30 W) and UPoE (60 W), letting a single 4-port PoE+ controller power a quad-camera cluster (4 PTZ cameras at 25 W each) without per-port power shortfall. The controller's autonomous detection/class handshake runs without a host CPU, simplifying low-cost NVR (Network Video Recorder) designs. The wide 44-57 V tolerance also protects against voltage drops on long Cat-5e runs to outdoor cameras.
Recomendado
Wi-Fi Access Point Switches
Enterprise Wi-Fi 6/6E access points typically need 25-30 W per AP for multi-radio operation, which exceeds PoE+ limits only on UPoE-supported ports. The PD69104B1ILQ-TR's UPoE capability lets one 4-port switch power four Wi-Fi 6E APs with full 60 W headroom each, or alternatively power eight APs at 30 W using dual PD69104B1ILQ-TR chips per 8-port switch. Per-port current monitoring via I2C enables cloud-managed AP power budgeting, and the integrated gate driver saves BOM by removing external MOSFET driver ICs.
Recomendado
VoIP Phone Power Sourcing
VoIP phones typically draw 5-15 W, well within IEEE 802.3af, making the PD69104B1ILQ-TR an over-spec but cost-effective choice when port count matches. A single 4-port PD69104B1ILQ-TR can power four executive VoIP phones with full PoE+ classification and per-port disconnect detection. The integrated thermal pad and high PSRR let the controller run alongside analog audio circuits without switching noise injection. For voice-over-IP gateway designs, autonomous mode eliminates the host MCU entirely.
Recomendado
Small-Cell and IoT Gateway PoE
Small-cell base stations and outdoor IoT gateways often require PoE+ (30 W) or UPoE (60 W) for radio-head power, especially in 5G mmWave small-cell deployments where the radio head is weather-sealed and runs on a single Ethernet drop. The PD69104B1ILQ-TR's 4-port architecture suits a 4-radio small-cell enclosure, with each port delivering up to 60 W. The -40 C to +85 C range and integrated per-port diagnostics support remote-managed carrier-grade deployments.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PD69104B1ILQ-TR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PD69104B2ILQ-TR | PD69204ILQ-TR | PD69104B1ILQ |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-QFN EP (8x8 mm) | 48-QFN EP (8x8 mm) - same | 48-QFN EP (8x8 mm) - same | 48-QFN EP (8x8 mm) - same |
| Number of Ports | 4 | 4 | 4 | 4 |
| PoE Standard Support | 802.3af / 802.3at / UPoE | 802.3af / 802.3at / UPoE | 802.3af / 802.3at / 802.3bt (Type 3/4) | 802.3af / 802.3at / UPoE |
| Maximum Per-Port Power | 60 W (UPoE) | 60 W (UPoE) | 90 W (802.3bt Type 4) | 60 W (UPoE) |
| Supply Voltage Range | 44 V to 57 V | 44 V to 57 V | 44 V to 57 V | 44 V to 57 V |
| Host Interface | I2C / SPI | I2C / SPI | I2C / SPI | I2C / SPI |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Principais diferenciais
- Native UPoE (60 W Type 3) support on same footprint (vs PD69104 (original, non-B1))
- Same package as legacy PD69104 with B2 silicon revision (vs PD69104B2ILQ-TR)
- Same 48-QFN EP pinout as 802.3bt upgrade PD69204 (vs PD69204ILQ-TR)
Notas de projeto
Estimated: at 4 ports delivering 30 W each (Vin = 54 V, Vport = 44 V drop across external MOSFET), the PD69104B1ILQ-TR dissipates approximately (54-44) V * 0.68 A * 4 = 27 W total in the external pass MOSFETs, while the controller itself only dissipates 0.5-1 W (logic + gate drive). The exposed thermal pad of the 48-QFN EP must have at least 100 sq-mm of unbroken copper pour on the top layer plus thermal vias to inner planes. Without this, the controller die will exceed the +125 C junction limit at +85 C ambient with all 4 ports at full load.
Place the 0.1 uF VCC bypass within 5 mm of the VCC_3V3 pin and a 10 uF bulk capacitor on the VMAIN pins. Keep the high-voltage VMAIN traces (44-57 V) away from the I2C/SPI logic lines by at least 3 mm or shield with a ground trace. Use a star-ground topology where the AGND pin returns to the main GND plane at a single point to avoid ground bounce from the high-current port switching.
Do not enable UPoE mode unless the external pass MOSFETs and PCB traces are rated for the higher inrush current (Type 3 uses 4-pair powering, doubling current per pair). The PD69104B1ILQ-TR's legacy mode is limited to Type 2 802.3at - B1 silicon revision enables UPoE. The PD69104 (non-B1) die does not support UPoE, so attempting to configure UPoE on legacy silicon silently falls back to Type 2.
Informações de conformidade
RoHS compliant per DigiKey listing reviewed 2026-10-09. Industrial temperature grade only - not AEC-Q100 automotive qualified.
