TEA1610T_P_3

© NXP B.V. 2007. All rights reserved.

Product data sheet

Rev. 03 — 26 March 2007

7 of 21

NXP Semiconductors

TEA1610P; TEA1610T

Zero-voltage-switching resonant converter controller

8.4 Minimum frequency resistor

current input (held at a temperature independent voltage level of 0.6 V). The charge

8.5 Maximum frequency resistor

The output voltage is regulated by changing the frequency of the half-bridge converter.

the error amplifier output VCO and the oscillator current input pin IRS. The current that

increases. As the falling slope of the oscillator is constant, the relationship between the

output frequency and the charge current is not a linear function (see Figure 7 and

Figure 9):

maximum frequency:

I

IRS1

2.4V

R

f min

()

-----------------

=

t

IRS1

C

f

∆V

Cf

×

2I

IRS1

×

--------------------------

=

f

osc min

()

1

t

dt

t

IRS1

+

------------------------

=

f

bridge min

()

f

osc min

(

)

2

---------------------

=

I

IRS2

V

VCO

0.6

–

---------------------------

=

t

IRS2

C

f

∆V

Cf

×

2I

IRS1

I

IRS2

+

()

×

---------------------------------------------

=

I

IRS2 max

()

V

VCO max

()

0.6

–

---------------------------------------

=

t

IRS min

()

C

f

∆V

Cf

×

2I

IRS2

I

IRS2 max

()

+

()

×

---------------------------------------------------------

=

f

osc max

()

1

T

OSC

-------------

=