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DPA422

更新时间： 2024-02-15 19:46:51
品牌 Logo 应用领域
帕沃英蒂格盛 - POWERINT 转换器电信以太网
页数 文件大小 规格书
36页 705K
描述
Highly Integrated DC-DC Converter ICs for Power over Ethernet & Telecom Applications

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DPA422 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：D2PAK包装说明：TO-263, 7/6 PIN
针数：4Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.87模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：75 V最小输入电压：16 V
标称输入电压：35 VJESD-30 代码：R-PSSO-G6
JESD-609代码：e0长度：10.29 mm
功能数量：1端子数量：6
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：1.31 A封装主体材料：PLASTIC/EPOXY
封装代码：TO-263封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：225
认证状态：Not Qualified座面最大高度：4.95 mm
表面贴装：YES切换器配置：SINGLE
最大切换频率：425 kHz技术：CMOS
温度等级：AUTOMOTIVE端子面层：TIN LEAD
端子形式：GULL WING端子节距：1.27 mm
端子位置：SINGLE处于峰值回流温度下的最长时间：30
宽度：8.405 mmBase Number Matches：1

DPA422 数据手册

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DPA422-426  
®
DPA-Switch Family  
Highly Integrated DC-DC Converter ICs for  
Power over Ethernet & Telecom Applications  
Product Highlights  
V
Highly Integrated Solution  
O
• 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
L
CONTROL  
RESET/  
C
CLAMP  
CIRCUIT  
Superior Performance and Flexibility  
S
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 under-voltage (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  
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  
DPA422  
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  
Table 1. Output Power Table.  
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.  
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.  
www.powerint.com  
December 2007  
1234567...36

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