ZXLD1374EST20TC Diodes Inc, ZXLD1374EST20TC Datasheet - Page 31

• Manufacturer Part Number: ZXLD1374EST20TC
• Description: LED Drivers 60V 1.5A LED Driver Converter IC
• Manufacturer: Diodes Inc

Specifications of ZXLD1374EST20TC

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ZXLD1374
Document number: DS35032 Rev. 2 - 2
Applications Information
PCB Layout considerations
PCB layout is a fundamental activity to get the most of the device in all configurations. In the following section it is possible
to find some important insight to design with the ZXLD1374 both in Buck and Buck-boost/Boost configurations.
Here are some considerations useful for the PCB layout:
-
-
-
In order to avoid ringing due to stray inductances, the inductor L1, the anode of D1 and the LX pin should be placed
as close together as possible.
The shaping capacitor C1 is fundamental for the stability of the control loop. To this end it should be placed no more
than 5mm from the SHP pin.
Input voltage pins, V
X7R, 100V (C3 and C4). In addition to these capacitors, it is suggested to add two ceramic capacitors of 1uF, X7R,
100V each (C2, C8), as well as a further decoupling capacitor of 100nF close to the V
is used in Buck mode, or can be driven from a separate supply.
IN
and V
(Continued)
AUX
, need to be decoupled. It is recommended to use two ceramic capacitors of 2.2µF,
60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST
Figure 51. Circuit Layout
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LED DRIVER CONVERTER WITH AEC-Q100
Diodes Incorporated
A Product Line of
IN
/V
AUX
pins (C9) the device
© Diodes Incorporated
ZXLD1374
March 2011