DFS06M datasheet(39/42 Pages) STMICROELECTRONICS

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AN1262 APPLICATION NOTE

Figure 23. Test board evaluation results

Symbol

Value

Notes

STTA106

1A / 600V Turboswitch, ST

1N4148

1N5822

3A / 40V Schottky, ST

IC1

L6590

Monolithic HV Switcher, ST

OP1

PC817A

Optocoupler, Sharp

BD1

DF06M

GI, or equivalent 1A, 600 V

---

Core E20/10/6, 3C85 ferrite, Philips or equivalent

≈ 0.6 mm air gap for a primary inductance of 1.4 mH (LLK <30 µH)

Pri: 64T+64T, series conneceted, AWG32 (

∅ 0.22 mm)

Sec: 6T, 4xAWG32 (

∅ 0.22 mm)

Aux: 14T, AWG32 (

∅ 0.22 mm)

T2A250V

2A, 250V ELU

Test board Load & Line regulation

0.003

0.01

0.03

0.1

0.3

4.9

4.92

4.94

4.96

4.98

Load Current [A]

Output Voltage [V]

264 VAC

88 VAC

110 VAC

220 VAC

Test Board Efficiency

0.003

0.01

0.03

0.1

0.3

Load Current [A]

Efficiency [%]

88 VAC

264 VAC

220 VAC

110 VAC

Test Board Light-load Consumption

100

150

200

250

300

350

400

450

200

400

600

800

1,000

DC Input Voltage [V]

Input Power [mW]

Pout

0.5 W

0.25 W

0.1 W

0.05 W

0 W

Device Power Dissipation

Rthj-amb= 58 °C/W @ 1.5W

0.003

0.01

0.03

0.1

0.3

0.05

0.1

0.2

0.5

Load Current [A]

Device Dissipation [W]

88 VAC

110 VAC

264 VAC

220 VAC

Table 24. (continued)

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