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PCZ34670EG PDF预览

PCZ34670EG

更新时间: 2024-09-19 21:16:39
品牌 Logo 应用领域
恩智浦 - NXP 开关光电二极管
页数 文件大小 规格书
24页 986K
描述
SWITCHING REGULATOR, 400kHz SWITCHING FREQ-MAX, PDSO20, 1.27 PITCH, ROHS COMPLIANT, PLASTIC, MS-013AC, SOIC-20

PCZ34670EG 技术参数

生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP,针数:20
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.84
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:60 V
最小输入电压:30 VJESD-30 代码:R-PDSO-G20
长度:12.8 mm功能数量:1
端子数量:20最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE认证状态:Not Qualified
座面最大高度:2.65 mm表面贴装:YES
切换器配置:SINGLE最大切换频率:400 kHz
温度等级:INDUSTRIAL端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
宽度:7.5 mmBase Number Matches:1

PCZ34670EG 数据手册

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Document Number: MC34670  
Rev. 1.0, 7/2006  
Freescale Semiconductor  
Product Preview  
IEEE 802.3af PD With Current  
Mode Switching Regulator  
34670  
The 34670 combines a Power Interface Port for IEEE 802.3af  
Powered Devices (PD) and a high performance current mode  
switching regulator. It allows a designer to build PDs with a minimum  
of external components by means of integrating the required IEEE  
802.3af functions and all functions necessary to build a high  
efficiency DC/DC converter.  
POWER OVER ETHERNET  
On the PD side the 34670 fully supports the IEEE802.3af standard  
and provides complete signature and power classification functions.  
It controls inrush current limiting and incorporates adjustable  
undervoltage lockout. The switching regulator provides excellent line  
and load regulation. It drives an external Power MOSFET with sense  
resistor.  
EG SUFFIX (PB-FREE)  
98ASB42343B  
20-PIN SOICW  
Features  
• 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  
ORDERING INFORMATION  
Temperature  
Device  
Package  
Range (T )  
A
PCZ34670EG/R2  
-40°C to 85°C  
20 SOICW  
• Adjustable Oscillator  
• Leading Edge Blanking  
• Internal Slope Compensation Circuitry  
• Input Overvoltage Protection  
• 50% Duty Cycle Limitation  
• Pb-Free Packaging Designated by Suffix Code EG  
+VPort  
VOUT = 5V@2A  
T1  
RX+  
3
D1  
NP  
NS  
34670  
RX  
RX-  
TX+  
VPWR  
RCLA  
6
1
RESET  
VDD  
TX  
TX-  
RV  
2
CDD  
CPORT  
M1  
R1  
R2  
GATE  
RCLASS  
CIN  
UVLO  
ILIM  
CS  
RCS  
4
5
VIN  
VOUT  
FREQ COMP FB  
SS  
SPARE+  
SPARE-  
-VPort  
CSS  
7
8
Figure 1. 34670 Simplified Application Diagram  
*This document contains certain information on a product under development. Free-  
scale reserves the right to change or discontinue this product without notice  
© Freescale Semiconductor, Inc., 2006. All rights reserved.  

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