ZXLD1366Q Datasheet, PDF (1/29 Pages) Diodes Incorporated – AUTOMOTIVE COMPLIANT HIGH ACCURACY 1A, 60V LED DRIVER

ZXLD1366Q
AUTOMOTIVE COMPLIANT HIGH ACCURACY 1A, 60V LED DRIVER
Description
The ZXLD1366Q 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 1A.
The ZXLD1366Q 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.
Enhanced output current dimming resolution can be achieved by
applying a PWM signal to the ‘ADJ’ pin.
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.
The ZXLD1366Q is qualified to AEC-Q100 Grade 1 and is
Automotive Compliant supporting PPAPs.
Pin Assignments
(TOP VIEW)
LX 1
GND 2
5 V_IN
ADJ ³
TSOT25
4 I_SENSE
(TOP VIEW)
LX 1
6 ^V_IN
GND 2
5 GND
ADJ 3
4 I_SENSE
U_V-_-D_DF_FN_N3₃0₀3₃0₀-_-6₆
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%)
 Switching Frequencies up to 1MHz
 Wide Input Voltage Range: 6V to 60V
 Inherent Open-Circuit LED Protection
Available in Thermally Enhanced Green Molding Packages
- V-DFN3030-6 JA = +44°C/W
- TSOT25 JA = +82°C/W
 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
 Halogen and Antimony Free. “Green” Device (Note 3)
 Qualified to AEC-Q100 Standards for High Reliability
 PPAP Capable (Note 4)
Typical Application Circuit
Applications
 Automotive Lighting:
- Internal Door Lights
- Rear Fog Lamps
- Position Lights
Notes: 1.
2.
3.
4.
No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
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.
Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and <1000ppm antimony compounds.
Automotive products are AEC-Q100 qualified and are PPAP capable. Refer to http://www.diodes.com/quality/product_compliance_definitions/.
ZXLD1366Q
Document number: DS37078 Rev. 1 - 2
1 of 29
www.diodes.com
December 2015
© Diodes Incorporated