SLUSFD7 April 2024 BQ25308
PRODUCTION DATA
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The charger current is set by the resistor value at the ICHG pin according to the equation below:
ICHG (A) = KICHG (A·Ω) / RICHG(Ω)
KICHG is a coefficient that is listed in the Electrical Characteristics table and RICHG is the value of the resistor at the ICHG pin to GND. KICHG is typically 40,000 (A·Ω) and it is slightly shifted up at lower charge current setting. The KICHG vs ICHG typical characteresitc curve is shown in Figure 7-3.