Seiko LTP1245R-C384-E Manual do Utilizador descarregar pdf (Página 5)

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

Rev.3.0_00

S-8243A/B Series

Seiko Instruments Inc.

 Pin Configuration

16-Pin TSSOP

Top view

VDD

DOP

COP

VMP

VC1

VC2

VC3

VSS

VREG

CTL1

CTL2

CTL3

CTL4

VBATOUT

CCT

CDT

Figure 3

Table 3 Pin description (S-8243A Series)

Pin No. Symbol Description

1 VDD

Input pin for positive power supply, Connection pin for battery 1’s positive voltage

2 DOP Connection pin for discharge control FET gate (CMOS output)

3 COP Connection pin for charge control FET gate (Nch open drain output)

4 VMP Pin for voltage detection between VDD-VMP pin (Pin for overcurrent detection)

5 VC1 No connection

6 VC2

Connection pin for battery 1’s negative voltage, for battery 2’s positive voltage

7 VC3

Connection pin for battery 2’s negative voltage, for battery 3’s positive voltage

8 VSS

Input pin for negative power supply, Connection pin for battery 3’s negative voltage

9 CDT

Connection pin to capacitor for overdischarge detection delay, for overcurrent detection delay 1

10 CCT Connection pin to capacitor for overcharge detection delay

11 VBATOUT Output pin for battery voltage and offset voltage

12 CTL4 Pin for selecting output from VBATOUT pin

13 CTL3 Pin for selecting output from VBATOUT pin

14 CTL2 Control pin for charge / discharge FET

15 CTL1 Control pin for charge / discharge FET

16 VREG Output pin for voltage regulator (3.3 V)

Table 4 Pin description (S-8243B Series)

Pin No. Symbol Description

1 VDD Input pin for positive power supply, Connection pin for battery 1’s positive voltage

2 DOP

Connection pin for discharge control FET gate (CMOS output)

3 COP

Connection pin for charge control FET gate (Nch open drain output)

4 VMP

Pin for voltage detection between VDD-VMP pin (Pin for overcurrent detection)

5 VC1

Connection pin for battery 1’s negative voltage, for battery 2’s positive voltage

6 VC2 Connection pin for battery 2’s negative voltage, for battery 3’s positive voltage

7 VC3 Connection pin for battery 3’s negative voltage, for battery 4’s positive voltage

8 VSS Input pin for negative power supply, Connection pin for battery 4’s negative voltage

9 CDT Connection pin to capacitor for overdischarge detection delay, for overcurrent detection delay 1

10 CCT

Connection pin to capacitor for overcharge detection delay

11 VBATOUT

Output pin for battery voltage and offset voltage

12 CTL4

Pin for selecting output from VBATOUT pin

13 CTL3

Pin for selecting output from VBATOUT pin

14 CTL2

Control pin for charge / discharge FET

15 CTL1

Control pin for charge / discharge FET

16 VREG

Output pin for voltage regulator (3.3 V)

1 2 3 4 5 6 7 8 9 10 ... 35 36

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