ltc6803g-4 Linear Technology Corporation, ltc6803g-4 Datasheet - Page 8

• Manufacturer Part Number: ltc6803g-4
• Description: Ltc6803-2/ltc6803-4 - Multicell Battery Stack Monitor
• Manufacturer: Linear Technology Corporation

LTC6803-2/LTC6803-4
TYPICAL PERFORMANCE CHARACTERISTICS
8
3.070
3.068
3.066
3.064
3.062
3.060
3.058
3.056
5.2
5.0
4.2
4.0
4.8
4.6
4.4
–50
0
V
vs Temperature
V
5 REPRESENTATIVE UNITS
V
REF
REG
+
= 43.2V
–25
Output Voltage
Load Regulation
2
T
T
T
T
A
A
A
A
SUPPLY CURRENT (mA)
0
= 125°C
= 85°C
= 25°C
= –40°C
TEMPERATURE (°C)
4
50
45
40
35
30
25
20
15
10
5
0
25
0
Die Temperature Increase vs
Discharge Current in Internal FET
ALL 12 CELLS AT 3.6V
V
T
S
A
6
= 25°C
DISCHARGE CURRENT PER CELL (mA)
= 43.2V
10
50
DISCHARGING
20
8
75
12 CELLS
30
10
100
680324 G24
680324 G21
40
125
12
DISCHARGING
50
6 CELLS
DISCHARGING
60
1 CELL
3.09
3.08
3.07
3.06
3.05
3.04
5.5
5.0
4.5
4.0
70
680324 G27
0
0
V
V
80
CDC = 2
CONTINUOUS CONVERSIONS
REF
REG
T
A
= 85°C
10
Load Regulation
Line Regulation
SOURCING CURRENT (µA)
SUPPLY VOLTAGE (V)
20
10
T
A
= –40°C
30
100
40
13.20
13.15
13.10
13.05
13.00
12.95
12.90
12.85
12.80
T
T
T
T
T
A
A
A
A
A
= 25°C
= 125°C
= 85°C
= 25°C
= –40°C
50
–40
Cell Conversion Time
680324 G25
680324 G22
–20
1000
60
0
TEMPERATURE (°C)
20
3.074
3.072
3.070
3.068
3.066
3.064
3.062
3.060
50
45
40
35
30
25
20
15
10
5
0
40
0
0
Internal Discharge Resistance
vs Cell Voltage
V
NO EXTERNAL LOAD ON V
(CONTINUOUS CELL CONVERSIONS)
REF
0.5
60
10
Line Regulation
1.0
80 100
1.5
SUPPLY VOLTAGE (V)
CELL VOLTAGE (V)
20
2.0
680324 G28
T
T
A
T
A
A
= –40°C
120
= 85°C
2.5
= 25°C
30
3.0
REF
40
, CDC = 2
3.5
T
T
T
T
4.0
A
A
A
A
50
= 105°C
= 85°C
= 25°C
= –45°C
680324 G23
680324 G26
4.5
680324f
5.0
60