Datasheet

LTC4062
5
4062fb
Internal Charge Timer vs
Temperature
Charge Current vs Supply Voltage
Charge Current vs Ambient
Temperature with Thermal
Regulation
Recharge Threshold Voltage vs
Temperature
Power FET “ON” Resistance vs
Temperature
Charge Current vs Battery Voltage
Undervoltage Lockout Voltage vs
Temperature
EN Pin Pulldown Resistance vs
Temperature
C/5 Pin Pulldown Resistance vs
Temperature
TEMPERATURE (°C)
–50 –25
0
I
BAT
(mA)
400
1000
0
50
75
4062 G13 4062 G14
200
800
600
25
100
125
R
PROG
= 1.25k
ONSET OF THERMAL
REGULATION
R
PROG
= 2k
V
CC
(V)
4.0
I
BAT
(mA)
8.0
5.0
6.0
7.0
104
102
100
98
96
4.5 5.5 6.5
7.5
TEMPERATURE (°C)
–50
V
RECHARGE
(V)
4.16
4.14
4.12
4.10
4.08
4.06
4.04
–25
02550
4062 G15
75 100
TEMPERATURE (°C)
–50
500
R
DS(ON)
(mΩ)
450
400
350
300
250
–25
02550
4062 G16
75 100
V
CC
= 4V
I
BAT
= 200mA
V
CC
= 8V
V
CC
= 4.3V
V
CC
= 5V
V
BAT
= 4V
C/5 = 5V
R
PROG
= 10k
–50
–25
0 25 50 75 100
TEMPERATURE (°C)
t
TIMER
(MINUTES)
195
190
185
180
175
170
165
4062 G10
C
TIMER
= 0.1µF
V
CC
= 4.3V
V
CC
= 8V
4062 G17
4062 G18
TEMPERATURE (°C)
–50 25 75
–25 0
50 100
V
UV
(V)
3.900
3.875
3.850
3.825
3.800
3.775
3.750
3.725
3.700
V
BAT
(V)
0
I
BAT
(mA)
3.0
900
800
700
600
500
400
300
200
100
0
0.5 4.5
1.0
1.5 2.0 2.5 3.5
4.0
V
CC
= 5V
C/5 = 5V
R
PROG
= 1.25k
θ
JA
= 40°C/W
V
CC
= 5V
V
BAT
= 4V
θ
JA
= 40°C/W
4062 G19
TEMPERATURE (°C)
–50 25 75
–25 0
50 100
5.0
4.5
4.0
3.5
3.0
2.5
2.0
R
EN
(MΩ)
4062 G20
TEMPERATURE (°C)
–50 25 75
–25 0
50 100
5.0
4.5
4.0
3.5
3.0
2.5
2.0
R
C/5
(MΩ)
TYPICAL PERFOR A CE CHARACTERISTICS
UW
T
A
= 25°C unless otherwise noted.