LTC1325 LINER [Linear Technology], LTC1325 Datasheet - Page 4

• Manufacturer Part Number: LTC1325
• Description: Microprocessor-Controlled Battery Management System
• Manufacturer: LINER [Linear Technology]

LTC1325
4
TYPICAL PERFORMANCE CHARACTERISTICS
3.070
3.077
3.076
3.074
3.073
3.072
3.071
3.075
160
140
120
100
0.6
1.0
0.9
0.8
0.7
0.5
0.4
0.3
0.2
0.1
80
60
40
20
0
0
0
0
0
Regulator Output Voltage vs
Load Current
Charge Current vs Battery Voltage
Fault Comparator Threshold vs
Temperature
V
L = 100 H, P1: IRF9531
DD
V
10
0.5 1.0
TBAT
= 12V, R
2
V
V
20
FOR HTF = HIGH, V
CELL
BATTERY VOLTAGE (V)
CELL
LOAD CURRENT (mA)
TEMPERATURE ( C)
SENSE
VR1 = 1, VR0 = 1
4
VR1 = 1, VR0 = 0
VR1 = 0, VR0 = 1
VR1 = 0, VR0 = 0
1.5
FOR BATR = HIGH
30
FOR EDV = HIGH
V
= 1 ,
DD
40
2.0
6
= 16V
V
V
DD
DD
2.5
50
= 4.5V
= 12V
HTF
8
= 0.4V
W
60
3.0
T
A
10
= 27 C
3.5
70
1325 G04
1325 G07
1325 G01
U
4.0
12
80
3.082
3.081
3.080
3.079
3.078
3.077
3.076
3.075
3.074
3.072
3.073
180
160
140
120
100
11
10
80
60
40
20
9
8
7
6
5
4
3
2
1
0
0
Fault Comparator Threshold vs
Temperature
0
0
Regulator Output Voltage vs
Temperature
DAC Output Voltage vs
Temperature
V
V
I
V
REG
BAT
TBAT
DD
10
V
10
10
CELL
V
= 12V
FOR BATP = HIGH, V
= 0
CELL
V
V
FOR HTF = HIGH, V
20
TBAT
DD
FOR MCV = HIGH, V
20
V
FOR MCV = HIGH, V
20
TBAT
= 12V
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
FOR LTF = HIGH, V
30
30
FOR LTF = HIGH, V
VR1 = 1, VR0 = 0
VR1 = 0, VR0 = 1
VR1 = 1, VR0 = 1
VR1 = 0, VR0 = 0
30
V
40
DD
V
40
DD
= 4.5V
50
40
= 16V
HTF
DD
50
MCV
= 12V
60
= 1.35V
MCV
50
LTF
= 2.8V AND
60
70
LTF
= 1.6V
= 1.6V
= 2.8V
60
70
80
1325 G02
1325 G05
1325 G08
90
70
80
1000
– 3.5
– 0.5
–2.0
–2.5
–4.5
–1.0
–1.5
–3.0
–4.0
900
800
700
600
500
400
300
200
100
20
15
10
25
0
0
0
5
0
0
Gas Gauge Gain and Offset vs
Temperature
V
Temperature
Shutdown Current vs Temperature
0
DD
V
INCLUDES CHANGES IN V
WITH TEMPERATURE
10
SENSE
10
10
Supply Current vs
GAS GAUGE GAIN
20
20
= –0.2V AND – 0.4V
20
V
DD
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
30
30
= 12V
30
40
40
GAS GAUGE OFFSET
40
V
V
V
50
DD
DD
DD
50
V
V
= 4.5V
DD
= 16V
50
DD
= 12V
REG
60
60
= 16V
= 4.5V
60
70
70
70
80
1325 G03
1325 G09
80
1325 G06
90
80
90