ICS1708 Datasheet, PDF (11/16 Pages) List of Unclassifed Manufacturers – QuickSaver Charge Control IC for Nickel-Cadmium and Nickel-Metal Hydride Batteries

ICS1708
Data Tables
Table 3: Absolute Maximum Ratings
Supply Voltage
Input/Output Levels
Ambient Operating Temperature
Storage Temperature
6.5
V
-0.5 to VDD + 0.5
V
70
°C
-55 to 150
°C
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.
T_amb=25°C.
Parameter
Supply Voltage
Supply Current
Internal pull-up
OPREF
High Level Source Current
CHG
Low Level Sink Current
CHG
Low Level Sink Current, indicator
CMN, MMN
Analog/Digital Converter Range
Minimum Battery Threshold
Table 4: DC Characteristics
Symbol
V_DD
I_DD
I_IL
I_OH
I_OL
I_OL
Conditions
V= V_DD - 0.4V
V=0.4V
V=0.4V
MIN
4.5
0-2.2
TYP
5.0
7.3
75
25
25
40
0-2.3
0.5
MAX
5.5
0-2.3
UNITS
V
mA
kΩ
mA (max)
mA (max)
mA (max)
V
V
Table 5: Timing Characteristics
R≈15kΩ, C≈100pF
PARAMETER
SYMBOL
REFERENCE
Clock Frequency
Charge Pulse Width in Fast Charge Stage
t_FCHG
see Figure A
Rest Time
t_R
see Figure A
Data Acquisition Time
t_DA
see Figure A
Cycle Time
t_CYCLE
see Figure A
Polling Detect Pulse Width
Polling Detect Pulse Period
SoftStart Initial Pulse Width
SoftStart Incremental Pulse Width
Rate Select Read of CMN pin 3 at power-up or
with battery removed after fast charge starts
TYP
1.0
1048
13.0
16.4
1077
100
624
200
7.0
1160
UNITS
MHz
ms
ms
ms
ms
ms
ms
ms
ms
ms
11