Issue resolved: SMT had placed RT1/2 resistor value 3.1K instead of 31.6K (as recommended)
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Hi!
We have manufactured new custom product using BQ24297 power IC. Charging was not triggered due TS resistor configuration.
Status:
IC says it's not charging (REG08 value hex 84) - gives values 10 = adapter port and 00 = not charging.
Fault REG09 gives value "TOO HOT", so charging is not enabled.
Li-ion battery voltage measured separately is 3.9V.
With external thermistor RTH 103AT the TS = 1.6V, REGN = 5V
To enable charging we should be in VHTF 46% <> VLTF 73% range. Right now with default resistor values we are around 38%.
Questions:
1. Why charger was not charging.
Components:
R41a = RC0402FR-075K23L => 5.23K
R43a = ERJ-2RKF3162X => 31.6K (component was wrong 3.1K)
