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AN2242 Datasheet(PDF) 28 Page - STMicroelectronics

Part # AN2242
Description  This document describes a reference design
PDF  31 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2242 Datasheet(HTML) 28 Page - STMicroelectronics

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9 Transformer Specification
AN2242
28/31
9
Transformer Specification
●
APPLICATION TYPE: Consumer, Home Appliance
●
TRANSFORMER TYPE: Open
●
WINDING TYPE: Layer
●
COIL FORMER: Horizontal type, 6+6 pins
●
MAX. TEMP. RISE: 45°C
●
MAX. OPERATING AMBIENT TEMP.: 60°C
●
MAINS INSULATION: ACC. WITH EN60065
9.1
Electrical Characteristics
●
CONVERTER TOPOLOGY: Flyback, CCM/DCM Mode
●
CORE TYPE: EER28L - PC40 or equivalent
●
TYPICAL OPERATING FREQ.: 65kHz
●
PRIMARY INDUCTANCE: 910
µH ±10% at 1kHz - 0.25V (1)
●
LEAKAGE INDUCTANCE: 15
µH MAX at 100kHz - 0.25V (2)
●
MAX. PEAK PRIMARY CURRENT: 1.65 Apk
●
RMS PRIMARY CURRENT: 0.65 ARMS
Note: 1 Measured between pins 1-3
2 Measured between pins 1-3 with all secondary windings shorted
Figure 32. "Transformer Electrical Diagram
1
3
PRIM
5
6
AUX
+1.8
7
+3.3
10
9
11
+5V
12
+12V
8



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