Nov 19, 2020
05:35 AM
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Nov 19, 2020
05:35 AM
e.g. when using one of the boost controllers like TLD5099EP.
Solved! Go to Solution.
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- IFX
1 Solution
Nov 19, 2020
05:35 AM
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Nov 19, 2020
05:35 AM
To avoid switching inductor saturation and high peak current through switching MOSFET, input power is restricted through SWCS pin by sensing MOSFET peak current.
In this case to avoid LED flicker below operating supply range, LITIX Power analog dimming feature is helpful.
LITIX Power SET pin is directly connected to the input voltage of the system through voltage divider (refer to scheme 2 of Figure 19 from TLD5098EP Datasheet or Figure 25 of TLD5099EP Datasheet). User need to adjust SET pin voltage such that it will be above 1.6V when minimum operating voltage is reached to achieve 100% LED current (refer to Figure 17 from TLD5098EP datasheet for SET pin range or Figure 23 from TLD5099EP datasheet).
Take also a look at the LITIX Power page.
In this case to avoid LED flicker below operating supply range, LITIX Power analog dimming feature is helpful.
LITIX Power SET pin is directly connected to the input voltage of the system through voltage divider (refer to scheme 2 of Figure 19 from TLD5098EP Datasheet or Figure 25 of TLD5099EP Datasheet). User need to adjust SET pin voltage such that it will be above 1.6V when minimum operating voltage is reached to achieve 100% LED current (refer to Figure 17 from TLD5098EP datasheet for SET pin range or Figure 23 from TLD5099EP datasheet).
Take also a look at the LITIX Power page.
1 Reply
Nov 19, 2020
05:35 AM
- Mark as New
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Nov 19, 2020
05:35 AM
To avoid switching inductor saturation and high peak current through switching MOSFET, input power is restricted through SWCS pin by sensing MOSFET peak current.
In this case to avoid LED flicker below operating supply range, LITIX Power analog dimming feature is helpful.
LITIX Power SET pin is directly connected to the input voltage of the system through voltage divider (refer to scheme 2 of Figure 19 from TLD5098EP Datasheet or Figure 25 of TLD5099EP Datasheet). User need to adjust SET pin voltage such that it will be above 1.6V when minimum operating voltage is reached to achieve 100% LED current (refer to Figure 17 from TLD5098EP datasheet for SET pin range or Figure 23 from TLD5099EP datasheet).
Take also a look at the LITIX Power page.
In this case to avoid LED flicker below operating supply range, LITIX Power analog dimming feature is helpful.
LITIX Power SET pin is directly connected to the input voltage of the system through voltage divider (refer to scheme 2 of Figure 19 from TLD5098EP Datasheet or Figure 25 of TLD5099EP Datasheet). User need to adjust SET pin voltage such that it will be above 1.6V when minimum operating voltage is reached to achieve 100% LED current (refer to Figure 17 from TLD5098EP datasheet for SET pin range or Figure 23 from TLD5099EP datasheet).
Take also a look at the LITIX Power page.