ZXLD1356_10 Datasheet, PDF (1/29 Pages) Diodes Incorporated – 60V 550mA LED DRIVER with AEC-Q100

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 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
o DFN3030-6
θ_JA
44° C/W
o TSOT23-5
θ_JA
82° C/W
• Available in Green molding (no Br, Sb) with lead free
finish/RoHS compliant
• Qualified to AEC-Q100 Grade 1
o TSOT23-5
ZXLD1356ET5TA
Applications
• Low voltage halogen replacement LEDs
• Automotive lighting
• Low voltage industrial lighting
• LED back-up lighting
• Illuminated signs
• Emergency lighting
• SELV lighting
• Refrigeration lights
A Product Line of
Diodes Incorporated
ZXLD1356
60V 550mA LED DRIVER with AEC-Q100
Pin Assignments
LX
V_IN
GND
ADJ
TSOT23-5
Top View
(TOP VIEW)
I_SENSE
LX 1
6 ^V_IN
GND 2
5 GND
ADJ 3
4 I_SENSE
DFN3030-6
Typical Application Circuit
D1
V_IN (24V)
Rs
0.36V
C1 4.7µF
VIN
100nF
ADJ
GND
L1
I SENSE
LX
ZXLD1356
GND
ZXLD1356
Document number: DS33470 Rev. 3 - 2
1 of 29
www.diodes.com
December 2010
© Diodes Incorporated