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ZXLD1356

60V 550mA LED DRIVER and AUTOMOTIVE GRADE

Diodes Incorporated. 

A Product Line of

Diodes Incorporated

ZXLD1356/ ZXLD1356Q

60V 550mA LED DRIVER and AUTOMOTIVE GRADE

Description

The ZXLD1356 is a continuous mode inductive step-down converter,

designed for driving single or multiple series connected LEDs efficiently

from a voltage source higher than the LED voltage. The device operates

from an input supply between 6V and 60V and provides an externally

adjustable output current of up to 550mA. Depending upon supply

voltage and external components, this can provide up to 30 watts of

output power.

The ZXLD1356 has been qualified to AECQ100 Grade 1 enabling

operation in ambient temperatures from -40°C to +125°C

Output current can be adjusted above, or below the set value, by

applying an external control signal to the 'ADJ' pin. Enhanced output

current dimming can be achieved by applying a PWM signal to the ‘ADJ’

pin.

Features

• Typically better than 0.8% output current accuracy

• Simple and with low part count

• Single pin on/off and brightness control using DC voltage or PWM

• PWM resolution up to 1000:1

• High efficiency (up to 97%)

• Wide input voltage range: 6V to 60V

• Inherent open-circuit LED protection

• Available in thermally enhanced packages

ƒ V-DFN3030-6 θJA

ƒ TSOT25

θJA

44°C/W

82°C/W

• Available in “Green” Molding Compound (No Br, Sb) with lead Free

Finish/ RoHS Compliant

ƒ Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

ƒ Halogen and Antimony Free. “Green” Device (Note 3)

• ZXLD1356QET5TA Automotive Grade qualified to AEC-Q100

Grade 1

Pin Assignments

(TOP VIEW)

LX 1

GND 2

5 VIN

ADJ 3

TSOT25

4 ISENSE

(TOP VIEW)

LX 1

6 VIN

GND 2

5 GND

ADJ 3

4 ISENSE

V-DFN3030-6

Applications

• Low Voltage Halogen Replacement LEDs

• Automotive Lighting

• Low Voltage Industrial Lighting

• LED Back-Up Lighting

• Illuminated Signs

• Emergency Lighting

• SELV Lighting

• Refrigeration Lights

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen and Antimony free, "Green" and Lead-Free.

3. Halogen and Antimony free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)

and <1000ppm antimony compounds.

ZXLD1356/ ZXLD1356Q

Document number: DS33470 Rev. 4 - 2

1 of 29

www.diodes.com

October 2012

© Diodes Incorporated

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