MC34670: MCZ34670 IEEE 802.3af Powered Devices
The NXP® MC34670 combines a power interface port for IEEE 802.3af powered devices and a high performance current mode switching regulator. It allows you to build PDs with a minimum of external components by integrating the required IEEE 802.3af functions with all functions necessary to build a high efficiency DC/DC converter.
PSP graphic
NXP® MC34670 Product Image
特性
- Integrated IEEE 802.3af Compliant Interface
- Signature Detection and Classification Functionality
- Integrated Isolation Switch
- Programmable Inrush Current Limiting Control
- Adjustable Undervoltage Lockout
- Input Voltage Range up to 80 V
- Current Mode Control
- Adjustable Oscillator
- Leading Edge Blanking
- Internal Slope Compensation Circuitry
- Input Overvoltage Protection
- 50% Duty Cycle Limitation
- Pb-Free Packaging Designated by Suffix Code EG
Recommended Documentation (5)
| Name/Description | Type | Modified Date |
|---|---|---|
| MC34670, IEEE 802.3af PD with Current Mode Switching Regulator (REV 3.0) PDF (886.1 kB) MC34670 | Data Sheets | 04 Dec 2006 |
| MC34670FS, IEEE 802.3af Power Device and PWM Controller (REV 3.0) PDF (688.7 kB) MC34670FS | Fact Sheets | 22 Jul 2008 |
| MCZ34670EGPWRENETFS, IEEE 802.3af PD With Current Mode Switching Regulator (MCZ34670) (REV 0) PDF (338.3 kB) MCZ34670EGPWRENET | Fact Sheets | 05 Oct 2006 |
| NXP® Advances into Multi-Market Analog and Power Management (REV 0) PDF (533.7 kB) DATABEANWP | White Papers | 22 Jun 2007 |
| AN3279, MC34670 Usage and Configuration (REV 3.0) PDF (1.2 MB) AN3279 | Application Notes | 23 Feb 2009 |
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| MC34670, IEEE 802.3af PD with Current Mode Switching Regulator (REV 3.0) PDF (886.1 kB) MC34670 | 04 Dec 2006 |
Application Notes (1)
| Name/Description | Modified Date |
|---|---|
| AN3279, MC34670 Usage and Configuration (REV 3.0) PDF (1.2 MB) AN3279 | 23 Feb 2009 |
Users Guides (1)
| Name/Description | Modified Date |
|---|---|
| KIT34670EGEVBE, Evaluation Board - User Guide (REV 1.0) PDF (751.3 kB) KT34670UG | 15 Jul 2008 |
Fact Sheets (2)
| Name/Description | Modified Date |
|---|---|
| MC34670FS, IEEE 802.3af Power Device and PWM Controller (REV 3.0) PDF (688.7 kB) MC34670FS | 22 Jul 2008 |
| MCZ34670EGPWRENETFS, IEEE 802.3af PD With Current Mode Switching Regulator (MCZ34670) (REV 0) PDF (338.3 kB) MCZ34670EGPWRENET | 05 Oct 2006 |
Brochures (1)
| Name/Description | Modified Date |
|---|---|
| Medical Brochure (REV 3) PDF (254.7 kB) BRMEDICAL | 12 Sep 2012 |
White Papers (1)
| Name/Description | Modified Date |
|---|---|
| NXP® Advances into Multi-Market Analog and Power Management (REV 0) PDF (533.7 kB) DATABEANWP | 22 Jun 2007 |
Ordering Information
| Product | Status | Status | Device Function | Budgetary Price excluding tax(US$) | Package Type and Termination Count | Number of Regulators-Buck Switching | Output Voltage | Output Current (A) | Supply Voltage (Min-Max) (V) | Ambient Operating Temperature (Min-Max) (°C) | Protection | Diagnostics | Additional Features - Power Management | RoHS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MCZ34670EGR2 | Not Recommended for New Design | PoE | 1K @ US$1.45 | SOIC 20 | 1 | 5.0 | 2.1 | 30 to 60 | -40 to 85 | Undervoltage Lockout, Overvoltage, Thermal Shutdown, Inrush Current Limit, Short Circuit | None | Reset, Internal Power MOSFET, Signature Detection, Regulator Control Output, Power Classification, Disable DC - DC, Adjustable UVLO, Adjustable Oscillators | [object Object] | |
| MCZ34670EG | Not Recommended for New Design | PoE | 1K @ US$1.45 | SOIC 20 | 1 | 5.0 | 2.1 | 30 to 60 | -40 to 85 | Undervoltage Lockout, Overvoltage, Thermal Shutdown, Inrush Current Limit, Short Circuit | None | Reset, Internal Power MOSFET, Signature Detection, Regulator Control Output, Power Classification, Disable DC - DC, Adjustable UVLO, Adjustable Oscillators | [object Object] |
Package Information
| Package Description | Outline Version | Packing | Product Status | Part Number | Chemical Content | RoHS / Pb FreeChina RoHS Lookup | MSL | PPT (°C) |
|---|---|---|---|---|---|---|---|---|
| SOIC 20W | 98ASB42343B | MPQ - 38 RAILPOQ - 3040 BOX | Not Recommended for New Design | MCZ34670EG | MCZ34670EG.pdf |   | 3 | 260 |
| MPQ - 1000 REELPOQ - 1000 BOX | Not Recommended for New Design | MCZ34670EGR2 | MCZ34670EGR2.pdf | | 3 | 260 |
