ZLED7x20 Datasheet

© 2016 Integrated Device Technology, Inc.

6

April 20, 2016

1.3

Electrical Parameters

Test conditions for the following specifications are Tamb = 25°C typical and VIN = 12V unless otherwise noted.

Production testing of the chip is performed at 25°C unless otherwise stated. Functional operation of the chip and

specified parameters at other temperatures are guaranteed by design, characterization, and process control.

No.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

1.3.1

Quiescent supply current

IINQoff

Output off—ADJ pin

grounded

90

120

160

μA

IINQon

Output switching—ADJ pin

floating

450

600

μA

1.3.2

Mean current sense

threshold voltage

VSENSE

97

100

103

mV

1.3.3

Sense threshold hysteresis

VSENSEHYS

±15

%

1.3.4

ISENSE pin input current

ISENSE

VSENSE = VIN -0.1V

8

μA

1.3.5

Internal reference voltage

measured at ADJ pin

VREF

ADJ pin floating

1.2

V

1.3.6

Resistance between VREF

and ADJ pin

RADJ

500

KΩ

1.3.7

External DC brightness

control voltage on ADJ pin

VADJ

0.3

1.2

V

1.3.8

DC on-off control voltage on

ADJ pin for switching

ZLED7x20 from active state

to quiescent state

VADJoff

VADJ falling

0.15

0.2

0.25

V

1.3.9

DC off-on control voltage on

ADJ pin for switching

ZLED7x20 from quiescent

state to active state

VADJon

VADJ rising

0.2

0.25

0.3

V

1.3.10

LX switch continuous

current

ILXmean_0

ZLED7020

1.2

A

ILXmean_3

ZLED7320

1.0

A

ILXmean_5

ZLED7520

0.75

A

ILXmean_7

ZLED7720

0.35

A

1.3.11

LX switch leakage current

ILX(leak)

1

μA

1.3.12

LX switch on resistance

RLX

0.27

0.4

Ω

1.3.13

Minimum switch on time

tONmin

LX switch on

200

ns

1.3.14

Minimum switch off time

tOFFmin

LX switch off

200

ns

1.3.15

Dimming rate

DDIM

1 LED, f =100Hz, Vin=15V,

L1 = 27

μH

1200:1