XC6216B48PR datasheet(21/49 Pages) TOREX

21 / 49 page

21/49

XC6216/XE6216

Series

The output voltage can be set externally by the following equation:

I21=IFB+I22

………………………………………………………………………

(1)

I22=2.0V/R22

………………………………………………………………………

(2)

I21=IFB+2.0V/R22

………………………………………………………………………

If the equation (3) is assigned to the equation (2), the equation becomes as below:

VOUT=2.0V+R21・I21

………………………………………………………………………

(3)

For this, the following equation can be used for setting output voltage externally:

VOUT=2.0V+R21・I21

………………………………………………………………………

(4)

And the equation (4) will be;

VOUT=2.0V+R21 ・(IFB+2.0V/R22)

………………………………………………………………………

=2.0V・(R21 + R22) / R22 + R21・IFB

………………………………………………………………………

(5)

The second term of the equation (6), R21・IFB, is the cause of the output accuracy error.

The IFB can be calculated by the following equation:

IFB=2.0V / RFB

………………………………………………………………………

(6)

The cause of the output accuracy error, R21・IFB can be calculated by the equation below;

R21･IFB=R21・2.0V/ RFB

=2.0V・R21 / RFB

………………………………………………………………………

(7)

Accordingly, if R21<< RFB, the output voltage error becomes minute.

●

Setting Resistance-Dependant of XC6216 Series C type’s Output Voltage

5. Torex places an importance on improving our products and its reliability.

However, by any possibility, we would request user fail-safe design and post-aging treatment on system or equipment.

4. Notes on setting output voltage externally (C type) Ta=25℃

■

NOTES ON USE

XC6216B48PR bảng dữ liệu(PDF) 21 Page - Torex Semiconductor

XC6216B48PR bảng dữ liệu(HTML) 21 Page - Torex Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

bảng dữ liệu tải về

Link URL