ZLED7010 Datasheet

© 2016 Integrated Device Technology, Inc.

16

April 20, 2016













+

∗

∗

=

2

R

4

R

3

R

R

V

V

079

.

0

I

S

ADJI

DC

_

OUT













+

∗

=

2

R

4

R

3

R

R

V

095

.

0

I

S

DC

_

OUT

For 0.3V

≤ V

ADJI

≤ 1.2V:

(8)

(9)

R3 and R4 determine the slope of temperature compensation. If R4 is just 0

Ω, the slope is solely driven by the

NTC component’s characteristic

β-constant. Larger values of R4 will decrease the slope.

will increase power consumption therefore values from 1k to 100k are recommended. For a selected temperature

compensation threshold, larger R3 and R4 require larger R2 to match and vice versa.

Also see section 5 regarding driver chains and temperature compensation.

Figure 4.2 shows some examples of current-temperature curves resulting from different dimensioning of the three

resistors.