TNY264_1 POWERINT [Power Integrations, Inc.], TNY264_1 Datasheet - Page 8

• Manufacturer Part Number: TNY264_1
• Description: Generic PCB for DVD Player using TinySwitch-II
• Manufacturer: POWERINT [Power Integrations, Inc.]

DER-9
Generic PCB for DVD Player using TinySwitch-II
February 4, 2004
4.8 Floating +3V and Its Bias Option
D11 and C14 rectify and filter the AC voltage to generate a floating +3V. R10 and R11
are the option if the floating voltage needs a reference voltage. The level of the reference
voltage can be adjusted by assigning different resistance value to R10 and R11.
4.9 –12V Linear Regulator Option
-12V is regulated through the coupling between -22V and 5V windings. Because its load
usually is quite light, which is about tens of milliamps, the regulation should be enough for
most applications. The option of a linear regulator U4 is provided if the tight regulation is
preferred for the –12V.
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