TEA1610 datasheet(5/20 Pages) PHILIPS

Part #	TEA1610

Description	Zero-voltage-switching resonant converter controller

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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5 / 20 page

2001 Apr 25

5

Philips Semiconductors

Product speciﬁcation

Zero-voltage-switching

resonant converter controller

TEA1610P; TEA1610T

FUNCTIONAL DESCRIPTION

Start-up

When the applied voltage at VDD reaches VDD(initial) (see

Fig.5), the low side power switch is turned-on while the

high side power switch remains in the non-conducting

state. This start-up output state guarantees the initial

charging of the bootstrap capacitor (Cboot) used for the

floating supply of the high side driver.

During start-up, the voltage on the frequency capacitor (Cf)

is zero and defines the start-up state. The output voltage

of the error amplifier is kept constant (typ. 2.5 V) and

switching starts at about 80% of the maximum frequency

at the moment pin VDD reaches the start level.

The start-up state is maintained until VDD reaches the start

level (13.5 V), the oscillator is activated and the converter

starts operating.

handbook, full pagewidth

MGT998

t

GH-SH

GL

0

VDD

VDD(start)

VDD(initial)

Fig.5 Start-up.

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TEA1610 Datasheet(PDF) 5 Page - NXP Semiconductors

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