ZXLD1366ET5TA View Datasheet(PDF) - Diodes Incorporated.

Part Name

Description

Manufacturer

ZXLD1366ET5TA

HIGH ACCURACY 1A, 60V LED DRIVER WITH INTERNAL SWITCH

Diodes Incorporated. 

A Product Line of

Diodes Incorporated

ZXLD1366

Absolute Maximum Ratings (Voltages to GND Unless Otherwise Stated)

Symbol

VIN

VSENSE

VLX

Parameter

Input Voltage

ISENSE Voltage

LX Output Voltage

Rating

-0.3 to +60

(65V for 0.5 sec)

+0.3 to -5

(measured with respect to VIN)

-0.3 to +60

(65V for 0.5 sec)

Unit

V

V

V

VADJ

Adjust Pin Input Voltage

-0.3 to +6

V

ILX

Switch Output Current

1.25

A

PTOT

Power Dissipation

(Refer to Package thermal de-rating curve on page 26)

SOT23-5; 1

DFN; 1.8

W

TOP

TST

TJ MAX

Operating Temperature

Storage Temperature

Junction Temperature

-40 to 125

°C

-55 to 150

°C

150

°C

These are stress ratings only. Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings, for

extended periods, may reduce device reliability.

Thermal Resistance

Symbol

θJA

ΨJB

θJC

Parameter

Junction to Ambient

Junction to Board

Junction to Case

TSOT23-5

82

33

-

Rating

SO-8-EP

45

-

7

DFN3030-6

44

-

14

Unit

°C/W

Electrical Characteristics (Test conditions: VIN = 24V, Tamb = 25°C, unless otherwise specified.)(a)

Symbol

VIN

VSU

VSD

IINQoff

IINQon

Parameter

Input voltage

Internal regulator start-up threshold

Internal regulator shutdown threshold

Quiescent supply current with output off

Quiescent supply current with output

switching(C)

VSENSE

Mean current sense threshold voltage

(Defines LED current setting accuracy)

VSENSEHYS

ISENSE

VREF

Sense threshold hysteresis

ISENSE pin input current

Internal reference voltage

Condition

See note(b)

ADJ pin grounded

ADJ pin floating,

L=68mH,

3 LEDs, f=260kHz

Measured on ISENSE pin

with respect to VIN

VADJ=1.25V; VIN=18V

VSENSE = VIN -0.2

Measured on ADJ pin

with pin floating

DVREF/DT

VADJ

VADJoff

Temperature coefficient of VREF

External control voltage range on ADJ pin

for DC brightness control (d)

DC voltage on ADJ pin to switch device from

active (on) state to quiescent (off) state

VADJ falling

Min.

6

4.4

195

0.3

0.15

Typ. Max. Unit

60

4.85 5.2

V

4.75

V

65

108

µA

1.6

mA

200 205 mV

±15

%

4

10

µA

1.25

V

50

ppm/°

C

2.5

V

0.2 0.27

V

Notes:

(a) Production testing of the device is performed at 25°C. Functional operation of the device and parameters specified over a -40°C to +105°C

temperature range, are guaranteed by design, characterization and process control.

(b) VIN > 16V to fully enhance output transistor. Otherwise out current must be derated - see graphs. Operation at low supply may cause excessive

heating due to increased on-resistance. Tested at 7V guaranteed for 6V by design.

(c) Static current of device is approximately 700 mA, see Graph, Page 17

(d) 100% brightness corresponds to VADJ = VADJ(nom) = VREF. Driving the ADJ pin above VREF will increase the VSENSE. Threshold and output

current proportionally

ZXLD1366

Document number: DS31992 Rev. 5 - 2

3 of 32

www.diodes.com

June 2010

© Diodes Incorporated

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