Product datasheet is taking about different values of minimum PWM dimming frequencies.
I would like to clarify, which is right and which is typo.
1. Datasheet says, min PWM freq is 5kHz in 7.2 Recommended Operating Conditions
https://www.ti.com/lit/ds/symlink/tps61165.pdf?ts=1664957841689#page=4
2. Datasheet says, min PWM freq is 6.5kHz: "PWM dimming frequency in the range of 6.5 kHz to 100 kHz. "
https://www.ti.com/lit/ds/symlink/tps61165.pdf?ts=1664957841689#page=14
3. Datasheet says in 9.2.1.2.1 LED Brightness Dimming Mode Selection: "To ensure not to enter EasyScale mode, please make sure CTRL pin is never held low for more than 160us."
Is time of 160us typo, are you thinking to 260us as tes_det?
https://www.ti.com/lit/ds/symlink/tps61165.pdf?ts=1664957841689#page=12
4. Revision History says: "Changed 5 khz to 6.5 khz in first paragraph after Figure 10 "
My comment:
As I understand the operation of this chip, in theoritical, fpwm>1/260us (f>3.85kHz) could quarantee this low level on any duty cycles, so any freq above this value can provide the suitable operation.
Reference:
TPS61165 High-Brightness, White LED Driver in WSON and SOT-23 Packages datasheet (Rev. E) (ti.com)
https://www.ti.com/lit/ds/symlink/tps61165.pdf?ts=1664957841689
