11

ICS1708

Data Tables

Table 3: Absolute Maximum Ratings

Supply Voltage

6.5

V

Input/Output Levels

-0.5 to VDD + 0.5

V

Ambient Operating Temperature

70

Storage Temperature

-55 to 150

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only.

Functional operation of the device at the Absolute Maximum Ratings or other conditions not consistent with the characteristics shown in this

document is not recommended. Exposure to absolute maximum rating conditions for extended periods affects product reliability.

Table 4: DC Characteristics

Parameter

Symbol

Conditions

MIN

TYP

MAX

UNITS

Supply Voltage

4.5

5.0

5.5

V

Supply Current

7.3

mA

Internal pull-up

OPREF

75

k

Ω

High Level Source Current

CHG

25

mA (max)

Low Level Sink Current

CHG

V=0.4V

25

mA (max)

Low Level Sink Current, indicator

CMN, MMN

V=0.4V

40

mA (max)

Analog/Digital Converter Range

0-2.2

0-2.3

0-2.3

V

Minimum Battery Threshold

0.5

V

Table 5: Timing Characteristics

R

PARAMETER

SYMBOL

REFERENCE

TYP

UNITS

Clock Frequency

1.0

MHz

Charge Pulse Width in Fast Charge Stage

see Figure A

1048

ms

Rest Time

see Figure A

13.0

ms

Data Acquisition Time

see Figure A

16.4

ms

Cycle Time

see Figure A

1077

ms

Polling Detect Pulse Width

100

ms

Polling Detect Pulse Period

624

ms

SoftStart Initial Pulse Width

200

ms

SoftStart Incremental Pulse Width

7.0

ms

Rate Select Read of CMN pin 3 at power-up or

with battery removed after fast charge starts

1160

ms