Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
KB4540
Trickle Charge Current vs
Supply Voltage
50
R
PROG
= 2k
R
PROG
= 2k
40
TYPICAL PERFORMANCE CHARACTERISTICS
CHRG Pin Current vs Temperature
(Weak Pull-Down State)
28
25
23
I
TRIKL
(mA)
I
CHRG
(µA)
30
V
CC
= 5V
V
BAT
= 2.5V
20
I
TRIKL
(mA)
30
V
BAT
= 2.5V
T
A
= 25°C
19
16
13
10
–50
10
R
PROG
= 10k
10
R
PROG
= 10k
V
CC
= 5V
V
BAT
= 4.3V
V
CHRG
= 5V
50
Trickle Charge Current
vs Temperature
40
20
–25
0
25
50
TEMPERATURE (°C)
75
100
0
–50
–25
0
25
50
TEMPERATURE (°C)
75
100
0
4.0
4.5
5.0
5.5
V
CC
(V)
6.0
6.5
7.0
Trickle Charge Threshold vs
Temperature
3.000
2.975
2.950
V
TRIKL
(V)
I
BAT
(mA)
V
CC
= 5V
R
PROG
= 10k
600
Charge Current vs Battery Voltage
600
T
A
= 0°C
500
400
300
200
100
0
2.7
V
CC
= 5V
θ
JA
= 125°C/W
R
PROG
= 2k
3.0
3.3
3.6
3.9
V
BAT
(V)
4.2
4.5
T
A
= 40°C
I
BAT
(mA)
T
A
= 25°C
500
400
300
200
100
0
Charge Current vs Supply Voltage
R
PROG
= 2k
2.925
2.900
2.875
2.850
2.825
2.800
–50
–25
0
25
50
TEMPERATURE (°C)
75
100
V
BAT
= 4V
T
A
= 25°C
θ
JA
= 80°C/W
ONSET OF
THERMAL
REGULATION
R
PROG
= 10k
4.0
4.5
5.0
5.5
V
CC
(V)
6.0
6.5
7.0
Charge Current vs Ambient
Temperature
600
R
PROG
= 2k
500
400
I
BAT
(mA)
300
200
R
PROG
= 10k
100
0
–50 –25
V
CC
= 5V
V
BAT
= 4V
θ
JA
= 80°C/W
ONSET OF
THERMAL
REGULATION
4.11
4.09
4.07
V
RECHRG
(V)
4.05
4.03
4.01
Recharge Voltage Threshold
vs Temperature
700
V
CC
= 5V
R
PROG
= 10k
650
600
R
DS(ON)
(mΩ)
550
500
450
400
Power FET “ON” Resistance
vs Temperature
V
CC
= 4.2V
I
BAT
= 100mA
R
PROG
= 2k
50
25
75
0
TEMPERATURE (°C)
100
125
3.99
–50
–25
50
25
0
TEMPERATURE (°C)
75
100
350
–50 –25
50
25
75
0
TEMPERATURE (°C)
100
125
5
KINGBOR [ KINGBOR TECHNOLOGY CO ]
