欢迎访问ic37.com |
会员登录 免费注册
发布采购

DI-58 参数 Datasheet PDF下载

DI-58图片预览
型号: DI-58
PDF下载: 下载PDF文件 查看货源
内容描述: 低成本1.5瓦CV / CC充电器或适配器 [Low Cost 1.5 W CV/CC Charger or Adapter]
分类和应用:
文件页数/大小: 2 页 / 366 K
品牌: POWERINT [ Power Integrations ]
 浏览型号DI-58的Datasheet PDF文件第1页  
DI-58  
• Tomaintainthe±25%CCtolerancetheprimaryinductance  
tolerance should be tighter than ±10%.  
• Minimize zero load consumption by reducing drain node  
capacitance: Use double coated/grade 2 wire for primary  
anddonotvacuumimpregnate.AvoidusinganRCsnubber  
across the output diode.  
• For resistive loads, increase C3 to 1 µF (electrolytic) to  
allow adequate time for start-up at full load.  
• For battery loads, an output LC filter is typically not  
required but can be added for resistive loads to reduce  
switching ripple.  
TRANSFORMER PARAMETERS  
TDK PC40 EE13,  
ALG= 101 nH/T2  
Core  
Bobbin  
EE13 Horizontal 8 pin  
Primary: 104T, 34 AWG  
Shield: 12T, 2 x 30 AWG  
Secondary: 15T, 30 AWG T.I.W.  
Flux Band: 1T, 6 mm Cu foil  
(T.I.W.: Triple Insulated Wire)  
Winding Details  
Secondary (5-6), tape, Shield  
(3-4), tape, Primary  
(4-1), tape, Flux band  
(3-NC)  
Winding Order  
(pin numbers)  
• R1 can be replaced with an inductor for higher efficiency  
(~10% increase).  
• Adding a 1 mA to 2 mA pre-load reduces zero load voltage  
by ~1 V but increases power consumption by ~10 mW.  
Inductance  
Primary: 1.36 mH ±10%, Leakage: 50 µH (max.)  
Primary Resonant  
Frequency  
300 kHz (minimum)  
Diode D4 can be replaced with a Schottky for higher  
efficiency.  
Table 1. Transformer Construction Information.  
• See AN-35 for more information.  
0.3  
0.25  
0.2  
10  
VIN = 85 VAC  
VIN = 265 VAC  
Low Limit  
8
6
4
2
0
High Limit  
0.15  
0.1  
0.05  
0
50  
100  
Input Voltage (VAC)  
Figure 3. No-load Input Power Consumption.  
150  
200  
250  
300  
0
0.1  
0.2  
0.3  
0.4  
Output Current (A)  
Figure 2. Load Regulation - CV/CC Characteristics  
with Limits.  
A
9/03  
www.powerint.com