| Parameters |
| Factory Lead Time |
8 Weeks |
| Lifecycle Status |
PRODUCTION (Last Updated: 3 months ago) |
| Package / Case |
8-SOIC (0.154, 3.90mm Width) |
| Surface Mount |
YES |
| Number of Pins |
8 |
| Operating Temperature |
-40°C~85°C |
| Packaging |
Tube |
| Published |
2005 |
| JESD-609 Code |
e3 |
| Part Status |
Active |
| Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
| Number of Terminations |
8 |
| ECCN Code |
EAR99 |
| Type |
Controller (PD) |
| Terminal Finish |
Matte Tin (Sn) |
| Subcategory |
Power Management Circuits |
| Technology |
CMOS |
| Voltage - Supply |
57V Max |
| Terminal Position |
DUAL |
| Terminal Form |
GULL WING |
| Peak Reflow Temperature (Cel) |
260 |
| Number of Functions |
1 |
| Depth |
3.99mm |
| Time@Peak Reflow Temperature-Max (s) |
30 |
| Base Part Number |
LTC4257 |
| Pin Count |
8 |
| Number of Channels |
1 |
| Adjustable Threshold |
NO |
| Power - Max |
12.95W |
| Current - Supply |
3mA |
| Supply Current-Max (Isup) |
3mA |
| Internal Switch(s) |
Yes |
| Standards |
802.3af (PoE) |
| Auxiliary Sense |
No |
| Length |
5mm |
| RoHS Status |
ROHS3 Compliant |
| Lead Free |
Lead Free |
LTC4257IS8-1#PBF Overview
Embedded in the Tube package, it is used by many applications.It is packaged in the way of 8-SOIC (0.154, 3.90mm Width).Controller (PD) is the type of PoE controller that this is.Channel growth is strong or weak: 1.PoE operates with the operating temperature of -40°C~85°C to ensure its reliability.Electrical Po E controller 57V Max has a 57V Max supply voltage.A base part number LTC4257 can be used to identify its Po E controllers according to that number.An 8 termination involves terminating a transmission line with a power over ethernet controller with a characteristic impedance that matches the line's characteristics.There is a maximum power of 12.95W Watts in this electrical ethernet over power controller.There is a pin count of 8 on this ethernet over power controller.There is a supply current of 3mA in the system.This Po E controller is included in Power Management Circuits.8 pins are used in the design of this board.There is a certain temperature that this electrical ethernet power controller reaches during reflow (Cel) of 260.It reaches 3mA when it receives the maximal current (Isup).
LTC4257IS8-1#PBF Features
Tube package
8 pin count
8 pins
LTC4257IS8-1#PBF Applications
There are a lot of Linear Technology/Analog Devices LTC4257IS8-1#PBF Power Over Ethernet (PoE) Controllers applications.
- Power over Ethernet
- Industrial Automation Equipment
- Security Cameras
- High Temperature Industrial Applications
- Non-Compliant, Application Specific Devices
- VoIP Phones
- 4PPOE
- Pass-through System
- High Power Wireless Data Systems
- Pico-base Stations