MAX1660 Datasheet, PDF (6/20 Pages) Maxim Integrated Products – Digitally Controlled Fuel-Gauge Interface

Digitally Controlled
Fuel-Gauge Interface
__________________________________________Typical Operating Characteristics
(V_BATT = V _SHDN = 12V, C_REF = 10nF, C_VL = 0.1µF, T_A = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. V_BATT
100
90
T_A = +85°C
T_A = +25°C
80
70
T_A = -40°C
60
50
4
8 12 16 20 24 28
V_BATT (V)
VL VOLTAGE vs. VL LOAD CURRENT
3.30
3.27
T_A = -40°C
3.24
3.21
T_A = +25°C
T_A = +85°C
3.18
3.15
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
LOAD CURRENT (mA)
SHUTDOWN SUPPLY CURRENT
vs. V_BATT
20
19 ^{SOFTSHDN = 1}
18
17
T_A = +85°C
T_A = +25°C
16
15
14
13
T_A = -40°C
12
11
10
4
8 12 16 20 24 28
V_BATT (V)
SHUTDOWN SUPPLY CURRENT
vs. V_BATT
0.05
SHDN = GND
0.04
0.03
T_A = +85°C
T_A = +25°C
0.02
0.01
4
T_A = -40°C
8 12 16 20 24 28
V_BATT (V)
REFERENCE VOLTAGE
vs. REFERENCE LOAD CURRENT
2.004
FREQUENCY vs. INPUT VOLTAGE
8
2.002
2.000
1.998
T_A = -40°C
T_A = +25°C
1.996
T_A = +85°C
1.994
0 20 40 60 80 100 120 140 160 180 200
LOAD CURRENT (µA)
6
4
INPUT
2
OFFSET
FREQUENCY
0
INPUT OFFSET
VOLTAGE
-2
-4
-15 -10
-5
0
5
10
INPUT VOLTAGE (µV)
FREQUENCY vs. INPUT VOLTAGE
150
CONVERSION GAIN vs. INPUT VOLTAGE
456
120
MEASURED
452
448
90
444
UNCORRECTED*
60
CHGCOUNT
30
0
30
DISCOUNT
60
90
120
IDEAL
440
436
432
428
424
OFFSET
420
CORRECTED*
416
412
408
275:1
6000:1
150
-360 -240 -120 0 120 240 360
404
0.001
0.01
0.1
1
10
100
1000
INPUT VOLTAGE (mV)
INPUT VOLTAGE (mV)
*Patent pending
*SEE INTERNAL OFFSET MEASUREMENT SECTION
6 _______________________________________________________________________________________