Datasheet

LTC2941-1
4
29411f
Typical perFormance characTerisTics
Total Charge Error
vs Sense Current
Total Charge Error
vs Supply Voltage
Total Charge Error vs Temperature
Supply Current vs Supply Voltage
Shutdown Supply Current
vs Supply Voltage
|I
SENSE
| (mA)
1
–0.50
CHARGE ERROR (%)
0
–0.25
–0.75
0.25
0.50
10 100 1000
29411 G01
–1.00
1.00
0.75
V
SENSE
+ = 2.7V
V
SENSE
+ = 4.2V
V
SENSE
+
(V)
2.5
I
SUPPLY
(µA)
80
90
100
4.0 5.0
29411 G04
70
60
3.0 3.5
4.5 5.5 6.0
50
40
T
A
= 25°C
T
A
= –40°C
T
A
= 85°C
V
SENSE
+
(V)
2.5
0
I
SHUTDOWN
(µA)
1.0
2.0
3.5
4.5
5.0
29411 G05
0.5
1.5
3.0
4.0
5.5
6.0
T
A
= 25°C
T
A
= –40°C
T
A
= 85°C
Sense Resistor Stability
V
SENSE
+
(V)
2.5
–1.0
CHARGE ERROR (%)
–0.8
–0.4
–0.2
0
1.0
0.4
3.5
4.5
5
29411 G02
–0.6
0.6
0.8
0.2
3
4
5.5
6
|I
SENSE
| = 1A
|I
SENSE
| = 200mA
TEMPERATURE (°C)
–50
CHARGE ERROR (%)
–0.25
0
0.25
25
75
24911 G03
–0.50
–0.75
–1.00
–25 0 50
0.50
0.75
1.00
100
+50ppm/K
OPTIMUM
–50ppm/K
TEMPERATURE
COMPENSATION
TRIM DEVIATION
|I
SENSE
| = 200mA
kHOURS
–3.0
∆R/R
O
(%)
–2.0
–1.0
0
–2.5
–1.5
–0.5
10 20 30 40
29411 G06
500
ACCELERATED LOAD LIFE TEST
DATA SCALED TO T
AMB
= 85°C,
I
SENSE
= 1A CONDITIONS