VOLTAGE MONITORING IC WITH CELL BALANCING FUNCTION

S-8249 Series

7



Electrical Characteristics

For details about the test circuits and testing method, refer to " Test Circuit".

Caution Unless otherwise specified in Table 8, set V2 = V3 = 0 V, and SWn (n = 1 to 4) = OFF.

Table 8 (1 / 2)

(Ta =

+25°C unless otherwise specified)

Item

Symbol

Condition

Min.

Typ.

Max.

Unit

Detection voltage

Cell balancing detection

voltage

SW1 = ON

2.0 V

−

0.012

+

0.012

V

2.4 V

×

0.995

×

1.005

V

Cell balancing release

voltage

SW1 = ON

2.0 V

−

0.024

+

0.024

V

2.4 V

×

0.99

×

1.01

V

Overcharge detection

voltage

2.0 V

−

0.012

+

0.012

V

2.4 V

×

0.995

×

1.005

V

Overcharge release

voltage

2.0 V

−

0.024

+

0.024

V

2.4 V

×

0.99

×

1.01

V

Temperature coefficient

Detection voltage

temperature coefficient 1

*1

Ta =

−40°C to +85°C

*3

−

100

350

ppm/

°C

Detection voltage

temperature coefficient 2

*2

Ta =

−40°C to +85°C

*3

−

100

350

ppm/

°C

Input voltage

Operation voltage between

VDD pin and VSS pin

Voltages output from CO pin and

CB pin are fixed

1.5

−

5.0

V

CE

_____

pin voltage "H"

_____

H

−

−

−

×

0.9

V

CE

_____

pin voltage "L"

_____

L

−

×

0.1

−

−

V

DP pin voltage "H"

−

−

−

×

0.9

V

DP pin voltage "L"

−

×

0.1

−

−

V

Input current

Current consumption

during operation

− 0.1 V

−

1.2

2.0

μA

Current consumption

during power-saving

− 0.1 V

−

−

0.1

μA

*1.

A change in the temperature of the detection voltage [mV/°C] is calculated by using the following equation.

[]

V

×

ppm/°C

÷ 1000

*2.

A change in the temperature of the detection voltage [mV/°C] is calculated by using the following equation.

[]

V

×

ppm/°C

÷ 1000

*3.

Since products are not screened at high and low temperature, the specification for this temperature range is

guaranteed by design, not tested in production.

Remark 1. Δ

ΔTa

, Δ

ΔTa

:

Change in temperature of detection voltage

Set detection voltage

3.

,

: Detection voltage temperature coefficient