ZXLD1362ET5TA Diodes Inc, ZXLD1362ET5TA Datasheet - Page 22

• Manufacturer Part Number: ZXLD1362ET5TA
• Description: LED Drivers 1A/60V LED DRIVER
• Manufacturer: Diodes Inc

Specifications of ZXLD1362ET5TA

• Operating Supply Voltage: 6 V to 60 V
• Maximum Power Dissipation: 1000 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: TSOT-23
• Minimum Operating Temperature: - 40 C
• Led Driver Application: Automotive Lighting, Illuminated Signs
• Topology: Buck (Step Down)
• No. Of Outputs: 1
• Output Current: 1A
• Input Voltage: 6V To 60V
• Dimming Control Type: PWM / DC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Application Information
Inductor Selection
Recommended inductor values for the ZXLD1362 are in the range 68μH to 220μH.
Higher values of inductance are recommended at higher supply voltages in order to minimize errors due to switching delays,
which result in increased ripple and lower efficiency. Higher values of inductance also result in a smaller change in output
current over the supply voltage range. (see graphs pages 10- 17). The inductor should be mounted as close to the device as
possible with low resistance connections to the LX and V
The chosen coil should have a saturation current higher than the peak output current and a continuous current rating above
the required mean output current.
Suitable coils for use with the ZXLD1362 may be selected from the MSS range manufactured by Coilcraft, or the NPIS
range manufactured by NIC components. The following websites may be useful in finding suitable components.
www.coilcraft.com
www.niccomp.com
www.wuerth-elektronik.de
The inductor value should be chosen to maintain operating duty cycle and switch 'on'/'off' times within the specified limits
over the supply voltage and load current range.
The graph Figure 3 below can be used to select a recommended inductor based on maintaining the ZXLD1362 case
temperature below 60°C. For detailed performance characteristics for the inductor values 68, 100, 150 and 220μH see
graphs on pages 10-17.
ZXLD1362
Document number: DS33472 Rev. 3 - 2
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Figure 3. ZXLD1362 Minimum Recommended Inductor
(cont.)
ZXLD1362 Minimum Recommended Inductor
Aluminium board, 2%Accuracy, <60°C CaseTemperature
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ZXLD1362
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March 2011