Seiko LTP1245R-C384-E Manual do Utilizador descarregar pdf (Página 7)

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

Rev.3.0_00

S-8243A/B Series

Seiko Instruments Inc.

 Electrical Characteristics

1. S-8243A Series

Table 6 (1 / 2)

(Ta

25°C unless otherwise specified)

Item Symbol Conditions Min. Typ. Max. Unit Test circuit

BATTERY PROTECTION

Overcharge detection voltage n

n=1, 2, 3

CUn

3.9 V to 4.4 V, 50 mV Step

CUn

−

0.025

CUn

0.025

V 4

Hysteresis voltage n of overcharge

detection

= 1, 2, 3

HCn

−

0.10 V to

−

0.40 V, and 0 V

HCn

−

0.05

HCn

0.05

V 4

Overdischarge detection voltage

= 1, 2, 3

DLn

2.0 V to 3.0 V, 100 mV Step

DLn

−

0.08

DLn

0.08

V 4

Hysteresis voltage n of

Overdischarge detection

= 1, 2, 3

HDn

0.15 V to 0.70 V, and 0 V

HDn

−

0.10

HDn

0.10

V 4

Overcurrent detection voltage 1 V

IOV1

0.05 V to 0.3 V, 50 mV Step

VM voltage based on V

IOV1

−

0.025

IOV1

0.025

V 4

Overcurrent detection voltage 2 V

IOV2

VM voltage based on V

0.40 0.50 0.60 V 4

Overcurrent detection voltage 3 V

IOV3

−

0.425 V

0.5 V

0.575 V 4

Temperature coefficient for

detection and release voltage

COE1

Ta =

−

C to

−

1.0 0 1.0 mV/

C 4

Temperature coefficient for

overcurrent detection voltage

COE2

Ta =

−

C to

−

0.5 0 0.5 mV/

C 4

0 V BATTERY CHARGING FUNCTION

(The 0 V battery function is either "0 V battery charging is allowed." or "0 V battery charging is inhibited."

depending upon the product type.)

0 V battery charge starting charger

voltage

0CHA

0 V battery charging available

−

0.8 1.5 V 7

0 V battery charge inhibition battery

voltage

0INH

0 V battery charging unavailable 0.4 0.7 1.1 V 7

INTERNAL RESISTANCE

Internal resistance between

VMP and VDD

VDM

V1 = V2 = V3 = 3.5 V 500 1100 2400 k

Internal resistance between

VMP and VSS

VSM

V1 = V2 = V3 = 1.8 V 300 700 1500 k

VOLTAGE REGULATOR

Output voltage V

OUT

= 14 V, I

OUT

= 3 mA 3.221 3.300 3.379 V 2

Line regulation

OUT1

= 6 V

→

18 V, I

OUT

= 3 mA

−

5 15 mV 2

Load regulation

OUT2

= 14 V, I

OUT

= 5

→

3 mA

−

15 30 mV 2

BATTERY MONITOR AMP

Input offset voltage n

= 1, 2, 3

OFFn

V1 = V2 = V3 = 3.5 V 60 165 270 mV 3

Voltage gain n

= 1, 2, 3

GAMPn V1 = V2 = V3 = 3.5 V 0.2

0.99 0.2 0.2

1.01

−

INPUT VOLTAGE, OPERATING VOLTAGE

Operating voltage between

and V

DSOP

−

18 V 4

CTL1 input voltage for High V

CTL1H

−

0.8

−

V 6

CTL1 input voltage for Low V

CTL1L

−

0.2 V 6

CTLn input voltage for High

n = 2, 3, 4

CTLnH

−

OUT

0.9

−

OUT

V 3, 6

CTLn input voltage for Low

n = 2, 3, 4

CTLnL

−

OUT

0.1 V 3, 6

1 2 3 4 5 6 7 8 9 10 11 12 ... 35 36

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