
M
NiCd/NiMH Battery
Fast-Charge Controllers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
All Pins to V
SS
...........................................................-0.3V, +6.0V
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C) ...........842mW
Narrow SO (derate 8.70mW/°C above +70°C) .............696mW
Wide SO (derate 9.52mW/°C above +70°C).................762mW
ELECTRICAL CHARACTERISTICS
(V
CC
= 4.5V to 5.5V, Figure 1, all measurements are with respect to V
SS
, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
CONDITIONS
V
CC
Supply Voltage
Supply Current
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Operating Temperature Range...............................0°C to +70°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
V
BAT
- V
SNS
No load
V
CC
= 5V
V
CC
= 5V, V
TCO
= 1.4V
V
CC
= 5V
V
CC
= 5V
V
CC
= 5V
V
CC
= 5V
V
TS
- V
SNS
V
CC
= 5V
V
CC
= 5V
mV
16
V
THERM
Thermistor Input Resolution
(Note 2)
mV
12
-
V
Negative Delta Voltage
(Note 2)
mV
30
V
SNSHI -
V
SNSLO
Delta Sense Voltage
(Note 1)
V
0.044V
CC
- 25mV
0.044V
CC
+ 25mV
0.044V
CC
V
SNSLO
Sense Trip Threshold Low
V
0.05V
CC
- 25mV
0.05V
CC
+ 25mV
0.05V
CC
V
SNSHI
Sense Trip Threshold High
V
V
V
0.0
0.0
0.0
V
CC
V
CC
V
CC
V
CELL
V
BAT
V
TEMP
Cell Potential
Battery Voltage Input
Temperature Potential
mA
0.75
2.2
I
CC
V
4.5
5.0
5.5
V
(V
LTF
/8)
+ (7V
TCO
/8)
- 30mV
(V
LTF
/8)
+ 7V
TCO
/8
(V
LTF
/8)
+ (7V
TCO
/8)
+ 30mV
V
HTF
High-Temperature
Trip Threshold
V
V
LTF
- 0.2V
CC
V
LTF
V
TCO
Temperature Cutoff Voltage
V
0.4V
CC
- 30mV
0.4V
CC
+ 30mV
0.4V
CC
V
LTF
Low-Temperature
Trip Threshold
V
V
EDV
V
EDV
+ 0.2V
CC
V
MCV
Maximum Cell Voltage
V
0.0
V
CC
V
TS
Temperature Sense
Input Voltage
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
CC
= 5V
V
0.2V
CC
- 30mV
0.2V
CC
+ 30mV
0.2V
CC
V
EDV
End-of-Discharge Voltage