SKYWORKS SI3454A-B01-IMR
| Manufacturer | |
| MPN | SI3454A-B01-IMR |
| LCSC Part # | C20030189 |
| Packaging | QFN-38(5x7) |
| Customer # | |
| Key Attributes | QFN-38(5x7) Power Over Ethernet (PoE) Controllers RoHS |
| Datasheet | SKYWORKS SI3454A-B01-IMR |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Power Over Ethernet (PoE) Controllers | |
| Manufacturer | SKYWORKS | |
| Packaging | QFN-38(5x7) | |
| Features | Built-in LDO;Overvoltage protection;Undervoltage Protection;Thermal Protection;Overcurrent Protection;PD detection and disconnect identification;Dual event classification detection |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Power Over Ethernet (PoE) Controllers | |
| Manufacturer | SKYWORKS |
| Type | Description | |
|---|---|---|
| Packaging | QFN-38(5x7) | |
| Features | Built-in LDO;Overvoltage protection;Undervoltage Protection;Thermal Protection;Overcurrent Protection;PD detection and disconnect identification;Dual event classification detection |
Introduction
Si3454 is a fully programmable quad-port power management controller for IEEE 802.3-compliant Power Sourcing Equipment (PSE). Designed for PSE endpoints (switches), it integrates four independent ports, each with IEEE-required Powered Device (PD) detection and classification capabilities. Additional features include a fully programmable architecture with DC-disconnect algorithm for PD disconnection, a robust multi-point detection algorithm, software-configurable per-port current and voltage monitoring, and programmable current limiting for IEEE 802.3at compliance. Intelligent protection circuitry includes input undervoltage detection, output current limiting, and short-circuit protection. The Si3454 is controlled by a host processor via a three-wire I²C-compatible serial interface. Separate serial data input and output pins enable high-voltage isolation through external isolators. An interrupt pin alerts the host processor to various status and fault conditions. The device also supports pin-selectable auto mode for autonomous operation without a host processor. The Si3454 further integrates an on-chip DC-DC converter that generates a digital voltage rail from the PoE voltage, enabling single-rail power supply operation.
Features
- 4-port Power Sourcing Equipment (PSE) controller
- IEEE 802.3at Type 1 and Type 2 compliant
- Port priority disconnect control
- Enhanced features for maximum design flexibility:
- Per-port current and voltage monitoring
- PoE Plus support with programmable current limit
- Multi-point detection
- Programmable power MOSFET gate drive control
- Configurable watchdog timer for fail-safe operation
- Maskable interrupt pin
- Comprehensive fault protection circuitry including:
- Power undervoltage lockout
- Output current limiting and short-circuit protection
- Thermal overload detection
- Pin-selectable auto mode support
- Extended operating temperature range: –40 to +85℃
- 5x7 mm 38-pin QFN package (RoHS compliant)
- On-chip DC-DC converter for single-rail power supply operation
Applications
- IEEE Power Sourcing Equipment (PSE)
- PoE switches
- IP telephony systems
- Smart grid switches
- Ruggedized and industrial switches
| Qty | Unit Price(Reference Only) | Total Amount |
|---|---|---|
| 1+ | $ 5.7185 | $ 5.72 |
| 200+ | $ 2.2813 | $ 456.26 |
| 500+ | $ 2.2054 | $ 1102.70 |
| 1,000+ | $ 2.1689 | $ 2168.90 |
Standard Packaging2500/Full Reel | ||
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Power Over Ethernet (PoE) Controllers | |
| Manufacturer | SKYWORKS | |
| Packaging | QFN-38(5x7) | |
| Features | Built-in LDO;Overvoltage protection;Undervoltage Protection;Thermal Protection;Overcurrent Protection;PD detection and disconnect identification;Dual event classification detection |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Power Over Ethernet (PoE) Controllers | |
| Manufacturer | SKYWORKS |
| Type | Description | |
|---|---|---|
| Packaging | QFN-38(5x7) | |
| Features | Built-in LDO;Overvoltage protection;Undervoltage Protection;Thermal Protection;Overcurrent Protection;PD detection and disconnect identification;Dual event classification detection |
Introduction
Si3454 is a fully programmable quad-port power management controller for IEEE 802.3-compliant Power Sourcing Equipment (PSE). Designed for PSE endpoints (switches), it integrates four independent ports, each with IEEE-required Powered Device (PD) detection and classification capabilities. Additional features include a fully programmable architecture with DC-disconnect algorithm for PD disconnection, a robust multi-point detection algorithm, software-configurable per-port current and voltage monitoring, and programmable current limiting for IEEE 802.3at compliance. Intelligent protection circuitry includes input undervoltage detection, output current limiting, and short-circuit protection. The Si3454 is controlled by a host processor via a three-wire I²C-compatible serial interface. Separate serial data input and output pins enable high-voltage isolation through external isolators. An interrupt pin alerts the host processor to various status and fault conditions. The device also supports pin-selectable auto mode for autonomous operation without a host processor. The Si3454 further integrates an on-chip DC-DC converter that generates a digital voltage rail from the PoE voltage, enabling single-rail power supply operation.
Features
- 4-port Power Sourcing Equipment (PSE) controller
- IEEE 802.3at Type 1 and Type 2 compliant
- Port priority disconnect control
- Enhanced features for maximum design flexibility:
- Per-port current and voltage monitoring
- PoE Plus support with programmable current limit
- Multi-point detection
- Programmable power MOSFET gate drive control
- Configurable watchdog timer for fail-safe operation
- Maskable interrupt pin
- Comprehensive fault protection circuitry including:
- Power undervoltage lockout
- Output current limiting and short-circuit protection
- Thermal overload detection
- Pin-selectable auto mode support
- Extended operating temperature range: –40 to +85℃
- 5x7 mm 38-pin QFN package (RoHS compliant)
- On-chip DC-DC converter for single-rail power supply operation
Applications
- IEEE Power Sourcing Equipment (PSE)
- PoE switches
- IP telephony systems
- Smart grid switches
- Ruggedized and industrial switches
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542319090 |
| USHTS | |
| TARIC | |
| CAHTS | |
| BRHTS | |
| INHTS | |
| MXHTS |
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542319090 |
| USHTS | |
| TARIC |
| Type | Details |
|---|---|
| CAHTS | |
| BRHTS | |
| INHTS | |
| MXHTS | |