ZXLD1321

Issue 1 - January 2008

8

www.zetex.com

© Zetex Semiconductors plc 2008

Output current regulation parameters

NOTES:

(f) System parameter only. This value is dependent upon external components and circuit configuration.

(g) This refers to the accuracy of output current regulation under normal operation when the feedback loop incorporating

the current monitor is active. The tolerances of external components are not included in this figure.

Ordering information

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Minimum output/

LED current(f)

VIN>3V

2

A

Output current accuracy(g)

3.0V<VIN<12V,

Iout=1A,

VADJ=100mV

-5

+5

%

TCO

Output current

temperature drift

3.0V<VIN<12V,

Iout=1A,

VADJ=100mV

100

200

ppm/

K

IOUT/

Load current regulation

2

%/A

VIN

Line voltage regulation of

output current

0.5

%/V

Eff

Efficiency(f)

85

%

Device

Reel size

(mm)

Reel width

(mm)

Quantity

per reel

Device mark

ZXLD1321DCATC

33.02

12

3,000

1321