unitrode EV2903 Скачать руководство пользователя страница 7

7

EV2903

0.01UF

C9

0.01UF

C10

0.01UF

C11

1UF

C8

35V

10UF

C1

35V

10UF

C2

13K

R11

1K

R12

820

R13

1K

R14

1K

R23

1K

R2

1K

R1

3W

0.1

R8

2.2

R6

1K

R3

1K

R4

1K

R5

1.5K

R22

1N5821

D10

LRTN

VSS

VSS

LRTN

DC

BAT1P

DRV

CHG

DONE

BAT3N

BAT2N

BAT1N

NSEL
VSEL

BQ2903

U1

1
2
3
4
5
6
7

8

9

10

11

12

13

14

J1

1

2

3

4

5

6

CHARGE/RED

D1

DONE/GREEN

D2

VOLT

RENEWAL1

VOLT

RENEWAL3

1

VOLT

RENEWAL2

VOLT

RENEWAL4

IRLZ34

Q1

CELL_SEL

S1

1

2

3

4

5

6

JP7

JP8

JP9

1N4001

D9

1N4001

D4

1N4001

D11

J2

1
2

J3

1
2

SHEET_2

SHEET_2

SHEET_2

SHEET_2

TIP42

Q2

2N4403

Q3

2N3904

Q4

VP0104

Q5

DRV

BAT+

ISNS

DONE

DONE

DIS

EN

LD+

LD-

DONE

3 CELL

4 CELL

GND

GND

DRV

GND

GND

I+

V+

EDV

0.9V

1.0V

1.1V

EXT-I

       

EV2903/4-24-97/F 

Appendix B: EV2903 Schematic

Содержание EV2903

Страница 1: ...of the fast charge rate For safety charging is inhibited if the voltage of any cell is greater than 3 0V during charge or if the voltage of any cell is less than 0 4V when not charging open circuit vo...

Страница 2: ...a bus connection This con nection is made to the RS 232 cable con necting to the serial port of the PC EV2903 Configuration The EV2903 Evaluation Board operates with or without the Interface Program C...

Страница 3: ...started and communication has been established with the EV2903 board If this screen does not appear please refer to Appendix A Troubleshooting for possible solu tions Display and Functional Buttons Th...

Страница 4: ...y the EV2903 While charging the battery stack voltage may appear to jump around This action is due to the voltage being sampled at various times either during the charging pulse or during the idle per...

Страница 5: ...es EDV Please refer to the bq2903 data sheet Battery Stack Voltage EDV When the bq2903 senses EDV it disconnects the battery stack from the load At this time the bq2014 Gas Gauge cannot sense the batt...

Страница 6: ...fter starting the program then communication to the EV2903 Evaluation board has not been established Please check the following Time Out Error On occasion we have noticed that a communication time out...

Страница 7: ...3 U1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 J1 1 2 3 4 5 6 CHARGE RED D1 DONE GREEN D2 VOLT RENEWAL1 VOLT RENEWAL3 1 VOLT RENEWAL2 VOLT RENEWAL4 IRLZ34 Q1 CELL_SEL S1 1 2 3 4 5 6 JP7 JP8 JP9 1N4001 D9 1N400...

Страница 8: ...12 JP3 1 3 2 JP4 1 3 2 JP5 1 3 2 JP6 1 3 2 0 1UF C3 SHEET_1 SHEET_1 SHEET_1 SHEET_1 1N4148 D8 1N4148 D7 1N4148 D3 1N4148 D6 1N4148 D5 P1 1 2 3 4 5 6 7 8 9 CHG DISP DONE SR SB EMPTY DQ REF VSS SEG5 SEG...

Страница 9: ...ONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH PERSONAL INJURY OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE CRITICAL APPLICATIONS TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED AUTHORIZED OR WARRANT...

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