ZXLD1366

ZXLD1366

Document number: DS31992 Rev. 5 - 2

3 of 32

www.diodes.com

June 2010

© Diodes Incorporated

A Product Line of

Diodes Incorporated

Symbol

Parameter

Rating

Unit

Input Voltage

-0.3 to +60

(65V for 0.5 sec)

V

+0.3 to -5

V

LX Output Voltage

-0.3 to +60

(65V for 0.5 sec)

V

Adjust Pin Input Voltage

-0.3 to +6

V

Switch Output Current

1.25

A

Power Dissipation

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

SOT23-5; 1

DFN; 1.8

W

Operating Temperature

-40 to 125

°C

Storage Temperature

-55 to 150

°C

Junction Temperature

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

Parameter

Rating

Unit

TSOT23-5

SO-8-EP

DFN3030-6

Junction to Ambient

82

45

44

°C/W

Junction to Board

33

-

-

Junction to Case

-

7

14

amb = 25°C, unless otherwise specified.)

(a)

Symbol

Parameter

Condition

Min.

Typ.

Max.

Unit

Input voltage

See note

(b)

6

60

Internal regulator start-up threshold

4.85

5.2

V

Internal regulator shutdown threshold

4.4

4.75

V

Quiescent supply current with output off

ADJ pin grounded

65

108

µA

Quiescent supply current with output

switching

(C)

ADJ pin floating,

L=68mH,

3 LEDs, f=260kHz

1.6

mA

Mean current sense threshold voltage

(Defines LED current setting accuracy)

195

200

205

mV

Sense threshold hysteresis

±15

%

4

10

µA

Internal reference voltage

Measured on ADJ pin

with pin floating

1.25

V

50

ppm/°

C

External control voltage range on ADJ pin

for DC brightness control

(d)

0.3

2.5

V

DC voltage on ADJ pin to switch device from

active (on) state to quiescent (off) state

0.15

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.

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

current proportionally