S8254A Ver la hoja de datos (PDF) - Unspecified

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S8254A

BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK

Unspecified 

Rev.5.2_01

BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK

S-8254A Series

 Timing Chart

1. Overcharge Detection and Overdischarge Detection

VCUn

VCLn

Battery voltage

VDUn

VDLn

(n = 1 to 4)

VDD

DOP pin voltage

VSS

VEB

COP pin voltage

VSS

High-Z

High-Z

VEB

VDD

39 / 40VDD

VMP pin voltage

1 / 2VDD

VSS

Charger connection

Load connection

Overcharge detection delay time (tCU)

Status*1

<1>

<2>

*1. < 1 > : Normal status

< 2 > : Overcharge status

< 3 > : Overdischarge status

< 4 > : Power-down status

Overdischarge detection delay time (tDL)

<1>

<4>

<1>

<3>

Remark The charger is assumed to charge with a constant current. VEB indicates the open voltage of

the charger.

Figure 9

17

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