The bq29400, bq29400A, bq29401, and bq29405 are BiCMOS secondary protection ICs for 2-, 3-, or 4-cell Lithium-Ion battery packs that incorporate a high-accuracy precision over voltage detection circuit. They include a programmable delay circuit for over voltage detection time.

Each cell in a multiple cell pack is compared to an internal reference voltage. If one cell reaches an overvoltage condition, the protection sequence begins. The bq2940x device starts charging an external capacitor through the CD pin. When the CD pin voltage reaches 1.2 V, the OUT pin changes from a low level to a high level.

BQ2000PWR

BQ2000SN-B5TRG4

BQ2000TPWR

BQ2002DSNTR

BQ2004EPN

BQ2004HSNTR

BQ2004SNTR

BQ2005PN

BQ2005STR

BQ2010SN-0D107TR1

BQ2022ADBZR

BQ2053-D

BQ2054SNTRG4

BQ2057CTSTR

BQ2057DGKR

BQ2057WSNTR

BQ2058RSN-C5TR

BQ2060A-E619DBQR

BQ2085DBT

BQ21040DBVR

BQ24010DRCR

BQ24012DRCR

BQ24040DSQR

BQ24072RGTR

BQ24072RGTT

BQ24085DRCR

BQ24104RHLR

BQ24105RHLR

BQ24133RGYR

BQ24157YFFR

BQ24168YFFR

BQ24172RGYR

BQ24230RGTR

BQ24230RGTT

BQ24250RGER

BQ24296RGER

BQ24314DSGR

BQ24316DSGR

BQ24400PWR

BQ24610RGER

BQ24702PWR

BQ24737RGRR

BQ24738RGRR

BQ24751RHDR

BQ25050DQCR

BQ25700ARSNR

BQ25886RGER

BQ25892RTWR

BQ25898YFFR

BQ26200PWR

BQ26231PWR

BQ26500PWR

BQ26501PWR

BQ27510DRZR

BQ29310PWR

BQ29400PWR

BQ29410PWR

BQ29412PWR

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