芯美电子
Typical Operating Characteristics
Battery Regulation (Float) Voltage vs Charge Current
4.21
Preliminary
EUP8080
Battery Regulation(Float) Voltage vs Temperature
4.210
4.205
4.200
R
PROG
= 2k
4.20
FLOAT VOLTAGE (V)
4.19
4.18
4.17
4.16
4.15
4.14
4.13
0
50
100
150
200
FLOAT VOLTAGE (V)
4.195
4.190
4.185
4.180
4.175
4.170
4.165
4.160
-40
-20
0
20
40
o
60
80
CHARGE CURRENT (mA)
TEMPERATURE ( C)
Charge Current vs Battery Current
250
4.25
Battery Regulation (Float) Voltage vs Supply Voltage
R
PROG
= 2k
200
VBAT RISING
4.20
CHARGE CURRENT (mA)
FLOAT VOLTAGE (V)
4.15
150
4.10
100
4.05
50
TRICKLE CHARGE
4.00
0
3.95
-50
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
3.90
4.0
4.5
5.0
5.5
6.0
BATTERY VOLTAGE (V)
INPUT VOLTAGE(V)
Charge Current vs Temperature
with Thermal Regulation(Constant-Current Mode)
250
1.0
PROG Pin Voltages vs Charge Current
R
PROG
= 2k
200
0.8
CHARGE CURRENT(mA)
150
V
CC
= 6V
VBAT = 3V
R
PROG
=2k
THERMAL CONTROL
LOOP IN OPERATION
V
PROG
(V)
0.6
100
0.4
50
0.2
0
-25
0
25
50
o
0.0
75
100
125
0
25
50
75
100
125
150
175
200
TEMPERATURE ( C)
CHARGE CURRENT (mA)
DS8080
Ver 0.1
Aug. 2007
7
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EUTECH [ EUTECH MICROELECTRONICS INC ]
