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DPA426R

更新时间： 2024-11-02 12:44:55
品牌 Logo 应用领域
帕沃英蒂格盛 - POWERINT 转换器电信PC以太网
页数 文件大小 规格书
34页 2832K
描述
Highly Integrated DC-DC Converter ICs for Power over Ethernet & Telecom Applications

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中文翻译

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DPA426R 技术参数

是否Rohs认证： 不符合生命周期：Active
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：14 weeks
风险等级：2.46Samacsys Confidence：4
Samacsys Status：ReleasedSamacsys PartID：1001574
Samacsys Pin Count：7Samacsys Part Category：Integrated Circuit
Samacsys Package Category：OtherSamacsys Footprint Name：(TO-263-7C)
Samacsys Released Date：2019-12-18 11:32:21Is Samacsys：N
JESD-609代码：e0湿度敏感等级：4
端子面层：Tin/Lead (Sn/Pb)Base Number Matches：1

DPA426R 数据手册

 浏览型号DPA426R的Datasheet PDF文件第2页浏览型号DPA426R的Datasheet PDF文件第3页浏览型号DPA426R的Datasheet PDF文件第4页浏览型号DPA426R的Datasheet PDF文件第5页浏览型号DPA426R的Datasheet PDF文件第6页浏览型号DPA426R的Datasheet PDF文件第7页 
DPA422-426  
DPA-Switch™ Family  
Highly Integrated DC-DC Converter ICs for  
Power over Ethernet & Telecom Applications  
Product Highlights  
V
O
Highly Integrated Solution  
•ꢀ Eliminates up to 50 external components–saves space, cost  
•ꢀ Integrates 220 V high frequency MOSFET, PWM control  
•ꢀ Lower cost plastic DIP surface mount (G package) and  
through-hole (P package) options for designs ≤35 W  
•ꢀ Thermally efficient TO-263-7C (R package) option for high  
power applications  
SENSE  
CIRCUIT  
DPA-Switch  
V
IN  
D
S
L
CONTROL  
RESET/  
C
CLAMP  
CIRCUIT  
Superior Performance and Flexibility  
X
F
•ꢀ Eliminates all external current sensing circuitry  
•ꢀ Built-in auto-restart for output overload/open loop protection  
•ꢀ Pin selectable 300/400 kHz fixed frequency  
•ꢀ Wide input (line) voltage range: 16-75 VDC  
•ꢀ Externally programmable current limit  
PI-2770-032002  
Figure 1. Typical Forward Converter Application.  
•ꢀ Source connected tab reduces EMI  
•ꢀ Line undervoltage (UV) detection: meets ETSI standards  
•ꢀ Line overvoltage (OV) shutdown protection  
•ꢀ UV/OV limits gate drive voltage for synchronous rectification  
•ꢀ Fully integrated soft-start for minimum stress/overshoot  
•ꢀ Supports forward or flyback topology  
•ꢀ Cycle skipping: regulation to zero load without pre-load  
•ꢀ Hysteretic thermal shutdown for automatic fault recovery  
•ꢀ RoHS compliant P and G package options  
Output Power Table  
36-75 VDC Input Range (Forward)2  
Total Device  
Dissipation3  
Product4  
Max  
0.5 W  
1 W  
2.5 W  
4 W  
6 W  
Power  
Output1  
DPA4227,8  
DPA423  
DPA424  
DPA425  
DPA4265  
7.5 W  
12 W  
16 W  
23 W  
25 W  
10 W  
16 W  
23 W  
32 W  
35 W  
-
-
-
-
10 W  
18 W  
35 W  
70 W  
100 W  
-
-
EcoSmart™– Energy Efficient  
•ꢀ Extremely low consumption at no-load  
•ꢀ Cycle skipping at light load for high standby efficiency  
35 W  
50 W  
55 W  
-
-
-
62 W  
70 W  
83 W  
36-75 VDC Input Range (Flyback)2  
Applications  
•ꢀ PoE applications, VoIP phones, WLAN, security cameras  
•ꢀ Telco central office equipment: xDSL, ISDN, PABX  
•ꢀ Distributed power architectures (24 V/48 V bus)  
•ꢀ Industrial controls  
Total Device  
Dissipation3  
Product4  
Max  
0.5 W  
0.75 W  
1 W  
1.5 W  
Power  
Output1  
DPA4227,8  
DPA423  
DPA424  
DPA425  
6.5 W  
9 W  
9.0 W  
13 W  
-
-
-
-
9.0 W  
13 W  
26 W  
52 W  
Description  
The DPA-Switch IC family is a highly integrated solution for  
DC-DC conversion applications with 16-75 VDC input.  
10 W  
14.5 W  
18 W  
24 W  
6
6
6
-
-
-
25.5 W  
DPA-Switch uses the same proven topology as TOPSwitch®,  
cost effectively integrating a power MOSFET, PWM control, fault  
protection and other control circuitry onto a single CMOS chip.  
High performance features are enabled with three user  
configurable pins. Hysteretic thermal shutdown is also provided.  
In addition, all critical parameters (i.e. current limit, frequency,  
PWM gain) have tight temperature and absolute tolerance, to  
simplify design and reduce system cost.  
Table 1. Output Power Table.  
Notes:  
1. Maximum output power is limited by device internal current limit.  
2. See Applications Considerations section for complete description of assumptions  
and for output powers with other input voltage ranges.  
3. For device dissipation of 1.5 W or below, use P or G packages. Device  
dissipation  
above 1.5 W is possible with R package.  
4. Packages: P: DIP-8, G: SMD-8, R: TO-263-7C. For lead-free package options,  
see Part Ordering Information.  
5. Available in R package only.  
6. Due to higher switching losses, the DPA425 may not deliver additional power  
compared to a smaller device.  
7. Available in P and G package only.  
8. DPA422 not recommended for new designs, use DPA423 instead.  
www.powerint.com  
December 2012  
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