BCM59111KMLG
highly integrated four-port Power over Ethernet PSE controller
Key details
| Part Number | BCM59111KMLG |
|---|---|
| Manufacturer | Broadcom |
| Category | PoE Controller |
| Lifecycle Status | Obsolete |
| Series | BCM59111 |
| Package / Case | 48-lead QFN, 7 mm × 7 mm |
| Pin Count | 48 |
| Operating Temperature | -40°C to +85°C |
| Last Verified | 2026-07-18 |
Part information
BCM59111KMLG Overview
BCM59111KMLG is a Broadcom highly integrated four-port Power over Ethernet PSE controller supplied in 48-lead QFN, 7 mm × 7 mm. This page uses the exact orderable code because package, grade, temperature and option suffixes can change compatibility.
Key Technical Specifications
| PoE Ports | 4 PSE ports |
|---|---|
| Standards | IEEE 802.3at and 802.3af |
| Main Supply | 48 V nominal PoE supply |
| Logic Interface | I²C/BSC |
| Package Size | 7 mm × 7 mm × 0.9 mm |
Package and Ordering Notes
The listed package is 48-lead QFN, 7 mm × 7 mm with 48 pins, leads, lands or contacts. The featured image is a generic package illustration for form-factor identification and is not an actual date-code or lot photograph. Lifecycle is recorded as Obsolete; confirm current factory support and last-time-buy constraints before design-in.
Sourcing Guidance
BCM59111KMLG is a legacy or obsolete orderable code. Source only with date-code, label, package and traceability checks appropriate to the application.
For an accurate quotation, include the full MPN, target quantity, acceptable date-code range, packaging format and destination. Icearth can help review traceability documents, label photos and electrical/package alignment before order placement.
Manufacturer Documentation
Technical values were checked against Broadcom documentation. Use the linked datasheet as the controlling source and re-check revisions before PCB release or firmware qualification.
BCM59111KMLG selection and design context
BCM59111KMLG is cataloged as a PoE Controller in the BCM59111 family. Its recorded function is highly integrated four-port Power over Ethernet PSE controller. Selection should be based on the complete electrical limits, package drawing and ordering suffix rather than the abbreviated family code.
- PoE Ports: 4 PSE ports. Confirm the value and its datasheet test conditions for the exact ordering suffix.
- Standards: IEEE 802.3at and 802.3af. Confirm the value and its datasheet test conditions for the exact ordering suffix.
- Main Supply: 48 V nominal PoE supply. Check rail compatibility, tolerance and sequencing under worst-case conditions.
- Logic Interface: I²C/BSC. Confirm logic levels, signaling mode, host support and required external components.
Application and qualification considerations
When evaluating this interface device, confirm protocol revision, signaling voltage, data rate, termination, ESD protection, clocking and host-side driver requirements. For a new design, review power-up behavior, interface timing, absolute maximum ratings, thermal limits and any external-component requirements in the latest manufacturer documentation. Existing-board replacement work should additionally confirm pinout, footprint, firmware assumptions and qualification grade.
Procurement checks for BCM59111KMLG
The recorded package is 48-lead QFN, 7 mm × 7 mm, the temperature range is -40°C to +85°C, and the lifecycle status is Obsolete as of 2026-07-18. Before ordering, confirm the exact MPN on the label, packing format, quantity, date-code requirements, traceability documents and current factory status.
BCM59111KMLG FAQ
What distinguishes BCM59111KMLG within the BCM59111 family?
BCM59111KMLG is the exact orderable code for a highly integrated four-port Power over Ethernet PSE controller in 48-lead QFN, 7 mm × 7 mm. Related BCM59111 devices may change package, rating, interface option or qualification grade, so compare the manufacturer ordering table before substitution.
What package and footprint checks are required for BCM59111KMLG?
BCM59111KMLG is recorded in 48-lead QFN, 7 mm × 7 mm with 48 pins, leads or contacts. Confirm the manufacturer package drawing, dimensions, pin numbering, exposed-pad requirements and packing suffix before releasing a PCB footprint.
Which specifications should be verified when selecting BCM59111KMLG?
PoE Ports is recorded as 4 PSE ports, Standards is recorded as IEEE 802.3at and 802.3af. Use the latest datasheet for minimum and maximum limits, test conditions, timing and absolute maximum ratings rather than relying only on a distributor summary.
What is the lifecycle status of BCM59111KMLG?
BCM59111KMLG was recorded as Obsolete when verified on 2026-07-18. Reconfirm factory status, revision availability, lead time and any last-time-buy notice before design-in or volume procurement.
What information should be included in an RFQ for BCM59111KMLG?
Provide the complete BCM59111KMLG orderable code, target quantity, acceptable date-code range, required packing method, delivery destination and documentation needs. For replacement work, also identify the existing package and any mandatory qualification grade.
Lifecycle and sourcing review
This part has a legacy lifecycle status. Submit the exact MPN, quantity, delivery destination and date-code requirements for a sourcing review.
BCM59111KMLG is a legacy or obsolete orderable code. Source only with date-code, label, package and traceability checks appropriate to the application.