ZXLD1362ET5TA Diodes Zetex, ZXLD1362ET5TA Datasheet - Page 20

• Manufacturer Part Number: ZXLD1362ET5TA
• Description: IC LED DRIVR WHITE BCKLGT TSOT-5
• Manufacturer: Diodes Zetex
• Type: Backlight, White LEDr

Specifications of ZXLD1362ET5TA

• 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: TSOT-23-5, TSOT-5, TSOP-5
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 1A
• Internal Switch(s): Yes
• Efficiency: 95%
• Operating Supply Voltage (typ): 9/12/15/18/24V
• Operating Temperature (min): -40C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Automotive
• Package Type: TSOT-23
• Pin Count: 5
• Mounting: Surface Mount
• Power Dissipation: 1W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Compliant
• Other names: ZXLD1362ET5TR

Application Information
Shutdown Mode
Taking the ADJ pin to a voltage below 0.2V for more than approximately 100µs will turn off the output and supply current to
a low standby level of 20µA nominal.
Note that the ADJ pin is not a logic input. Taking the ADJ pin to a voltage above V
100% nominal average value. (See page 18 graphs for details).
Soft-start
An external capacitor from the ADJ pin to ground will provide a soft-start delay, by increasing the time taken for the voltage
on this pin to rise to the turn-on threshold and by slowing down the rate of rise of the control voltage at the input of the
comparator. Adding capacitance increases this delay by approximately 200µs/nF. The graph below shows the variation of
soft-start time for different values of capacitor.
Actual operating waveforms [V
Soft-start operation. Output current (Ch2) and LX voltage (Ch1)
ZXLD1362
Document number: DS33472 Rev. 3 - 2
16
14
12
10
-2
8
6
4
2
0
0
(cont.)
Soft Start Time vs Capacitance from ADJ pin to Ground
IN
=24V, R
20
S
=0.1Ω, L=68µH, 22nF on ADJ]
40
www.diodes.com
Capacitance (nf)
20 of 28
60
80
Diodes Incorporated
A Product Line of
REF
100
will increase output current above the
120
© Diodes Incorporated
ZXLD1362
March 2011