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BQ26501PW Datasheet(PDF) 9 Page - Texas Instruments |
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BQ26501PW Datasheet(HTML) 9 Page - Texas Instruments |
9 / 33 page bq26501 SLUS586B − OCTOBER 2003 − REVISED MARCH 2004 9 www.ti.com APPLICATION INFORMATION VDQ is cleared and a capacity learning cycle is disqualified by any of the following conditions: 1. Cold temperature: Temperature less than or equal to the TOFF value programmed in the TCOMP register when the EDV1 threshold voltage is reached. 2. Light load: Average current is less than or equal to 2 times the initial standby load (ISLC) when the EDV1 threshold voltage is reached. 3. Fast voltage drop: VOLT ≤ (EDV1 − 256 mV) when EDV1 is set. 4. Excessive charging: Cumulative charge added is greater than 255 mAh during a learning discharge cycle (alternating discharge-charge-discharge before EDV1 is set). 5. Reset: VDQ is cleared on reset. 6. Excessive self-discharge: NAC reduction from self−discharge estimate exceeds 12.48%. 7. Self-discharge at termination of learning cycle. If self-discharge estimate reduces NAC until NAC ≤ LMD/16. Not Recommended For New Designs |
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