ZXLD1322DCTC 查看數據表（PDF） - Zetex => Diodes

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ZXLD1322DCTC

Buck/boost mode DC-DC converter for LED driving with 700mA output and current control

Zetex => Diodes 

ZXLD1322

Output current regulation parameters

Symbol

IOUT

⌬IOUT

TCO

(OUT)

⌬IOUT/

IOUT

⌬IOUT/

⌬VIN

Eff

Parameter

Conditions

Minimum output/

LED current(f)

VIN>3V

Output current accuracy(g) 3.0V<VIN<15V,

Iout=700mA,

VADJ=100mV

Output current

temperature drift

3.0V<VIN<15V,

Iout=700mA,

VADJ=100mV

Load current regulation 350mA<I(LED)<700mA

Line voltage regulation of

output current

Efficiency(f)

350mA<I(LED)<700mA

Min Typ Max Units

0.75

A

-5

+5 %

100 200 ppm/

K

2

%/A

0.5

%/V

85

%

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

Device

ZXLD1322DCTC

Reel size

(mm)

33.02

Reel width

(mm)

12

Quantity

per reel

3,000

Device mark

1322

Issue 1 - January 2008

8

© Zetex Semiconductors plc 2008

www.zetex.com

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