LTC4269CDKD-1#TRPBF
ActivePOE IC, PD CONTROLLER, 60 V INPUT, 100 KHZ, 1 CHANNEL, 25.5 W, 1.24 V UVLO, 0 TO 70 °C, DFN-EP-32
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LTC4269CDKD-1#TRPBF
ActivePOE IC, PD CONTROLLER, 60 V INPUT, 100 KHZ, 1 CHANNEL, 25.5 W, 1.24 V UVLO, 0 TO 70 °C, DFN-EP-32
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC4269CDKD-1#TRPBF |
|---|---|
| Auxiliary Sense | True |
| Current - Supply | 1.35 mA |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Channels [custom] | 1 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Package / Case | 32-WFDFN Exposed Pad |
| Power - Max [Max] | 25.5 W |
| Standards | 802.3at (PoE+), 802.3af (PoE) |
| Supplier Device Package | 32-DFN (7x4) |
| Type | DC/DC, Controller (PD) |
| Voltage - Supply [Max] | 60 VDC |
| Voltage - Supply [Min] | 37.2 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | Updated |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 7.76 | 1m+ |
| 10 | $ 5.31 | |||
| 25 | $ 4.68 | |||
| 100 | $ 3.97 | |||
| 250 | $ 3.62 | |||
| 500 | $ 3.41 | |||
| 1000 | $ 3.24 | |||
| Digi-Reel® | 1 | $ 7.76 | 1m+ | |
| 10 | $ 5.31 | |||
| 25 | $ 4.68 | |||
| 100 | $ 3.97 | |||
| 250 | $ 3.62 | |||
| 500 | $ 3.41 | |||
| 1000 | $ 3.24 | |||
| N/A | 5442 | $ 7.47 | 1m+ | |
| Tape & Reel (TR) | 2500 | $ 3.09 | 1m+ | |
| Newark | Each (Supplied on Cut Tape) | 1 | $ 7.47 | 1m+ |
| 10 | $ 4.98 | |||
| 25 | $ 4.33 | |||
| 50 | $ 3.97 | |||
| 100 | $ 3.60 | |||
| 250 | $ 3.24 | |||
| 500 | $ 3.09 | |||
Description
General part information
LTC4269 Series
The LTC4269-2 is an integrated Powered Device (PD) interface and power supply controller featuring 2-event classification signaling, flexible auxiliary power options, and a power supply controller suitable for synchronously rectified forward supplies. These features make the LTC4269-2 ideally suited for an IEEE802.3at PD application.The PD controller features a 100V MOSFET that isolates the power supply during detection and classification, and provides 100mA inrush current limit. Also included are power good outputs, an undervoltage/overvoltage lockout and thermal protection. The current mode forward controller allows for synchronous rectification, resulting in an extremely high efficiency, green product. Soft-start for controlled output voltage start-up and fault recovery is included. Programmable frequency over 100kHz to 500kHz allows flexibility in efficiency vs size and low EMI.ApplicationsIP Phones with Large Color ScreensDual Radio 802.11n Access PointsPTZ Security Cameras
Documents
Technical documentation and resources
