ZXLD1366DACTC Diodes Zetex, ZXLD1366DACTC Datasheet - Page 2

• Manufacturer Part Number: ZXLD1366DACTC
• Description: IC LED DRIVER WHITE BCKLGT 6-DFN
• Manufacturer: Diodes Zetex
• Type: Backlight, White LEDr

Specifications of ZXLD1366DACTC

• Topology: PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive, Backlight
• Type - Secondary: High Brightness LED (HBLED), White LED
• Frequency: 500kHz
• Voltage - Supply: 6 V ~ 60 V
• Voltage - Output: 60V
• Mounting Type: Surface Mount
• Package / Case: 6-DFN
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 1A
• Internal Switch(s): Yes
• Efficiency: 97%
• Operating Supply Voltage (typ): 9/12/15/18/24V
• Operating Temperature (min): -40C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Automotive
• Package Type: DFN EP
• Pin Count: 6
• Mounting: Surface Mount
• Power Dissipation: 1.8W
• Operating Supply Voltage (min): 6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ZXLD1366DACTR

Block Diagram
Pin Description
ZXLD1366
Document number: DS31992 Rev. 6 - 2
I
Name TSOT23-5 DFN3030-6
SENSE
GND
ADJ
Pad
V
LX
IN
V
IN
1
2
3
4
5
-
C1
4.7µF
Pad
2, 5
1
3
4
6
Gnd
Adj
3
2
Figure 1. Pin connection for TSOT23-5 package
1.25V
2, 3, 6, 7
SO8EP
50K
D1
R4
Pad
1
4
5
8
regulator
Voltage
20K
R5
•
•
•
•
Drain of NDMOS switch
Ground (0V)
Multi-function On/Off and brightness control pin:
Connect resistor R
current I
(Note: R
Input voltage (6V to 60V). Decouple to ground with 4.7µF of higher X7R
ceramic capacitor close to device
Exposed pad (EP) - connected to device substrate.
To improve thermal impedance of package the EP must be connected to
power ground but should not be used as the 0V (GND) current path.
It can be left floating but must not be connected to any other voltage
other than 0V.
www.diodes.com
5V
Leave floating for normal operation.(V
nominal average output current I
Drive to voltage below 0.2V to turn off output current
Drive with DC voltage (0.3V < V
from 25% to 200% of I
Connect a capacitor from this pin to ground to set soft-start time.
Soft start time increases approximately 0.2ms/nF
1.35V
600KHz
OUT
SMIN
2 of 30
+
-
+
-
nom = 0.2V/R
0.2V
= 0.2V with ADJ pin open-circuit)
R3
R1
R2
5
S
from this pin to V
V
IN
S
OUTnom
R
S
+
Description
-
+
Diodes Incorporated
-
A Product Line of
4
ADJ
OUTnom
I
IN
SENSE
D1
to define nominal average output
< 2.5V) to adjust output current
Low voltage
ADJ
dete ctor
= 0.2V/R
= V
L1
REF
1
= 1.25V giving
S
)
LX
MN
© Diodes Incorporated
ZXLD1366
March 2011