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MAX5969D
IEEE 802.3af/at-Compliant, Powered Device Interface Controller with Integrated Power MOSFET
100V, IEEE 802.3af/at PD Interface Controller with Sleep Mode Saves Power
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Status
Active: In Production.
Description
The MAX5969D provides a complete interface for a powered device (PD) to comply with the IEEE® 802.3af/at standard in a power-over-Ethernet (PoE) system. The MAX5969D provides the PD with a detection signature, classification signature, and an integrated isolation power switch with inrush current control. During the inrush period, the MAX5969D limits the current to less than 180mA before switching to the higher current limit (720mA to 880mA) when the isolation power MOSFET is fully enhanced. The device features an input UVLO with wide hysteresis and long deglitch time to compensate for twisted-pair cable resistive drop and to assure glitch-free transition during power-on/-off conditions. The MAX5969D can withstand up to 100V at the input.
The MAX5969D supports a 2-event classification method as specified in the IEEE 802.3at standard and provide a signal to indicate when probed by a Type 2 power sourcing equipment (PSE). The device detects the presence of a wall adapter power source connection and allow a smooth switch over from the PoE power source to the wall power adaptor.
The MAX5969D also provides a power-good (PG) signal, two-step current limit and foldback, overtemperature protection, and di/dt limit. The MAX5969D is available in a 16-pin, 5mm x 5mm TQFN power package. This device is rated over the -40°C to +85°C extended temperature range.
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Data Sheet
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Key Features
- IEEE 802.3af/at Compliant
- 2-Event Classification or an External Wall Adapter Indicator Output
- Simplified Wall Adapter Interface
- PoE Classification 0–5
- 100V Input Absolute Maximum Rating
- Inrush Current Limit of 180mA Maximum
- Current Limit During Normal Operation Between 720mA and 880mA
- Current Limit and Foldback
- Legacy UVLO at 36V
- Overtemperature Protection
- Thermally Enhanced, 5mm x 5mm, 16-Pin TQFN
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Applications/Uses
- IEEE 802.3af/at Powered Devices
- IP Phones, Wireless Access Nodes, IP Security Cameras
- WiMAX™ Base Stations
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Key Specifications:
| Powered Devices |
| Part Number |
IEEE Compliance |
RDS(ON)
(Ω) |
PWM |
Protection Features |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Oper. Temp.
(°C) |
Budgetary Price |
| PD MOSFET |
max w/pins |
See Notes |
| MAX5969D |
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0.5 |
No |
UVLO Threshold = 35.4V |
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26 |
-40 to +85 |
$2.39 @1k |
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See All Powered Devices (9)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Product Guides
Reliability Reports
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX5969DETE+
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Active |
TQFN;16 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0121 (PDF)
Use pkgcode/variation: T1655+4*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5969DETE+T
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Active |
QFN;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Information Index
Document Ref.: 19-5926
Rev 0;
2011-06-30
This page last modified: 2011-09-12
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