ZXLD1366
HIGH ACCURACY 1A, 60V LED DRIVER WITH AEC-Q100
Description
The ZXLD1366 is
Pin Assignments
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 1A.
(TOP VIEW)
1
2
VIN
LX
5
4
GND
The ZXLD1366 is qualified to AEC-Q100 Grade 1, enabling
operation in ambient temperatures from -40°C to +125°C.
ISENSE
3
ADJ
The ZXLD1366 uses a high-side output current sensing circuit
which uses an external resistor to set the nominal average output
current. The output current can be adjusted above, or below the set
value, by applying an external control signal to the 'ADJ' pin.
TSOT25
(TOP VIEW)
VIN
6
Enhanced output current dimming resolution can be achieved by
applying a PWM signal to the ‘ADJ’ pin.
LX
1
2
3
5 GND
GND
ADJ
Soft-start can be forced using an external capacitor from the ADJ
pin to ground. Applying a voltage of 0.2V or lower to the ADJ pin
turns the output off and switches the device into a low current
standby state.
4
ISENSE
V-DFN3030-6
(TOP VIEW)
Features
Typically Better than 0.8% Output Current Accuracy
Simple and with Low Part Count
LX 1
VIN
8
7
6
5
2
3
GND
GND
GND
GND
ISENSE
Single Pin On/Off and Brightness Control Using DC Voltage or
PWM
PWM Resolution up to 1000:1
4
ADJ
High Efficiency (up to 97%)
Switching Frequencies up to 1MHz
Wide Input Voltage Range: 6V to 60V
Inherent Open-Circuit LED Protection
Available in Thermally Enhanced Green Molding Packages
SO-8EP
Typical Application Circuit
-
-
-
SO-8EP
V-DFN3030-6
TSOT25
θJA = +45°C/W
θJA = +44°C/W
θJA = +82°C/W
D1
Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green Device (Note 3)
Qualified to AEC-Q100 Grade 1
Rs
VIN (24V)
0.2V
An Automotive Compliant part is available under a separate
datasheet (ZXLD1366Q)
L1
Applications
Low Voltage Industrial Lighting
C1
4.7µF
100nF
LED Back-Up Lighting
Illuminated Signs
Emergency Lighting
SELV Lighting
VIN
ISENSE
LX
ADJ
ZXLD1366
GND
Refrigeration Lights
GND
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/quality/lead_free.html 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.
1 of 31
www.diodes.com
April 2016
© Diodes Incorporated
ZXLD1366
Document number: DS31992 Rev. 9 - 2
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