TMI7321 TOLL Microelectronic13W 802.3af PoE Powered Device Interface with Flyback/Buck DC/DC Converter
■The TMI7321 is an integrated IEEE 802.3af PoE compliant Powered Device (PD) power supply solution. It includes a PD interface and an isolated/non-isolated fly-back or Buck converter. The PD interface includes detection and all the functions of IEEE 802.3af, classification, 150mA inrush current, 450mA operation current limit as well as 100V Hot-swap MOSFET. The DC/DC converter uses fixed peak current and variable frequency discontinuous conduction mode (DCM) to regulate constant output voltage. The primary-side regulation without opto-coupler feedback in fly-back mode simplifies the design while buck mode continues minimizes the solution size for non-isolated applications. A 160V integrated power MOSFET optimizes the device for various wide voltage applications It incorporates over current, open-circuit, and over-voltage protection and thermal shutdown. The TMI7321 supports a front-end solution for PoE-PD application with minimal external components and is available in QFN4x5-28 package.
●Features
■Compatible with 802.3af Specifications
■Support 13W PoE Power Application
■100V, 0.6Ω Integrated Pass Switch
■150mA DC Input Current Limit
■450mA PD Operation Current Limit
■Intelligent Maintain Power Signature (MPS)
■Integrated 160V Switching Power MOSFET
■Supports Primary-Side Regulated Flyback without Opto-Coupler Feedback
■Supports Low-side Switch Buck Converter
■3A Programmable Switching Current Limit
■OLP, OVP, OTP and Open-Circuit Protection
■Minimal External Components
■QFN4x5-28 Package
|
TOLL Microelectronic PoE Powered Device Interface 、 integrated IEEE 802.3af PoE compliant Powered Device power supply |
|
|
[ IEEE 802.3af-Compliant Devices ][ Security Camera ][ VoIP Phones ][ WLAN Access Points ][ IoT Devices ] |
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
QFN4x5-28 |
|
|
English Chinese Chinese and English Japanese |
|
|
2023.12 |
|
|
V1.1 |
|
|
|
|
|
2 MB |
- +1 Like
- Add to Favorites
Recommend
- Integrated DC Motor Driver: The Current Is Only 15μA In low-power Sleep Mode
- Stepper Motor Drivers with Built-in Micro-stepping Algorithm Solveing the Jitter and Noise Problems
- Benewake Offers A Low Cost Solution for Aunattended ETC Quick Toll Collection
- The “Magic Bullet“ for High-Current Scenarios, the Advantages of WAYON TOLL MOSFETs Explained
- At the front end of Data Short Range Communication 5.8GHz TAG/On Board Unit for Electronic Toll Collection
- QL Quartz Weigh-In-Motion Traffic Sensor Measures Accurately at The Speeds from 5 to 200km/h
- Learn About Electricity Meter RTC
- What Is an IoT Gateway and How to Overcome Challenges in IoT Gateway Applications
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
