FP5452

This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.

No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.

Rev. 1.0

13/21

Function Description

Voltage Reference

FP5452 has an internal 2.5V reference regulator for its internal circuits’ voltage bias. This

reference voltage is also divided down by a resistive divider to provide error amplifiers as the inverting

input reference voltage. (Figure 18)

Figure 18 Error Amplifiers and Reference with Resistive Dividers

The error amplifier inverting input (EA1- or EA2-) reference voltage equations are shown as

following:

2

R

1

R

2

R

)

V

5

.

2

(

V

V

REF

1

EA









4

R

3

R

4

R

)

V

5

.

2

(

V

V

REF

2

EA







