Datasheet

LTC4063
5
4063fc
Typical perForMance characTerisTics
Charge Current vs Supply Voltage
Recharge Threshold Voltage
vs Temperature
Power FET On-Resistance
vs
Temperature Shutdown Current vs Temperature
CHGEN Pin Threshold Voltage
(On-to-Off) vs Temperature
CHGEN Pin
Pull-Down Resistance
vs Temperature
Charge Current
vs Ambient Temperature
FB Pin Regulated Voltage
vs Output Current
FB Pin Regulated Voltage
vs Temperature
TEMPERATURE (°C)
–50 –25
0
I
BAT
(mA)
400
1000
0
50
75
4063 G10
200
800
600
25
100
125
R
PROG
= 1.25k
ONSET OF THERMAL
REGULATION
R
PROG
= 2k
V
CC
= 5V
V
BAT
= 4V
Q
JA
= 40°C/W
V
CC
(V)
4
300
I
BAT
(mA)
400
500
600
700
5 6
7
8
4063 G11
800
900
4.5 5.5
6.5
7.5
R
PROG
= 1.25k
V
BAT
= 3.3V
Q
JA
= 35°C/W
T
A
= 25°C
ONSET OF THERMAL
REGULATION
TEMPERATURE (oC)
–50
4.04
V
RECHRG
(V)
4.06
4.08
4.10
4.12
4.16
–25
0 25 50
4063 G12
75 100
4.14
V
CC
= 4.3V
V
CC
= 8V
TEMPERATURE (°C)
–50
R
DS(ON)
(mΩ)
550
600
650
25 75
4063 G13
500
450
–25 0
50 100 125
400
350
V
BAT
= 4V
I
BAT
= 200mA
R
PROG
= 1.25k
TEMPERATURE (°C)
–50
70
60
50
40
30
20
10
0
25 75
4063 G14
–25 0
50 100
I
CC
(µA)
CHGEN = V
CC
LDOEN = 0V
V
CC
= 8V
V
CC
= 5V
V
CC
= 4.3V
TEMPERATURE (°C)
–50
V
CHGEN
(mV)
800
850
900
25 75
4063 G15
750
700
–25 0
50 100 125
650
600
V
CC
= 5V
TEMPERATURE (°C)
–50
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
25 75
4063 G16
–25 0
50 100
R
CHGEN
(MΩ)
I
OUT
(mA)
0
797
V
FB
(mV)
798
799
800
801
803
20
40 60 80
4063 G17
100 120
802
V
BAT
= 4.2V
T
A
= 25°C
T
A
= 90°C
T
A
= 115°C
T
A
= –40°C
TEMPERATURE (°C)
–50
V
FB
(V)
801
802
803
25 75
4063 G18
800
799
–25 0
50 100 125
798
797
I
LOAD
= 1mA
V
BAT
= 4.2V
V
BAT
= 2.65V
T
A
= 25°C, unless otherwise noted.