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LTC1325CSW Datasheet(PDF) 4 Page - Linear Technology

Part # LTC1325CSW
Description  Microprocessor-Controlled Battery Management System
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1325CSW Datasheet(HTML) 4 Page - Linear Technology

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4
LTC1325
TYPICAL PERFORMANCE CHARACTERISTICS
LOAD CURRENT (mA)
0
3.074
3.075
3.076
3.0
1325 G01
3.073
3.072
0.5
1.0
1.5
2.5
3.5
2.0
4.0
3.071
3.070
3.077
VDD = 12V
VDD = 4.5V
VDD = 16V
TA = 27°C
TEMPERATURE (
°C)
0
0
5
15
20
25
20
40
50
90
1325 G06
10
10
30
60
70
80
VDD = 12V
VDD = 16V
VDD = 4.5V
TEMPERATURE (
°C)
0
1000
900
800
700
600
500
400
300
200
100
0
20
40
50
90
1325 G03
10
30
60
70
80
VDD = 16V
VDD = 4.5V
VDD = 12V
DAC Output Voltage vs
Temperature
TEMPERATURE (
°C)
0
3.072
3.073
3.075
3.076
3.077
3.082
3.079
20
40
50
90
1325 G02
3.074
3.080
3.081
3.078
10
30
60
70
80
VDD = 16V
IREG = 0
VDD = 4.5V
VDD = 12V
Fault Comparator Threshold vs
Temperature
Fault Comparator Threshold vs
Temperature
TEMPERATURE (
°C)
0
11
10
9
8
7
6
5
4
3
2
1
20
40
50
1325 G08
10
30
60
70
80
VBAT FOR BATP = HIGH, VDD = 12V
VCELL FOR MCV = HIGH, VMCV = 2.8V AND
VTBAT FOR LTF = HIGH, VLTF = 2.8V
VTBAT FOR HTF = HIGH, VHTF = 1.35V
VCELL FOR MCV = HIGH, VMCV = 1.6V
VTBAT FOR LTF = HIGH, VLTF = 1.6V
Gas Gauge Gain and Offset vs
Temperature
VDD Supply Current vs
Temperature
TEMPERATURE (
°C)
0
–4.5
–4.0
–3.0
–2.5
–2.0
70
60
0
1325 G09
– 3.5
10
20
30
40
50
80
–1.5
–1.0
– 0.5
VSENSE = –0.2V AND – 0.4V
INCLUDES CHANGES IN VREG
WITH TEMPERATURE
GAS GAUGE OFFSET
GAS GAUGE GAIN
Charge Current vs Battery Voltage
Regulator Output Voltage vs
Load Current
Regulator Output Voltage vs
Temperature
TEMPERATURE (
°C)
0
180
160
140
120
100
80
60
40
20
0
30
50
1325 G05
10
20
40
60
70
VDD = 12V
VR1 = 1, VR0 = 1
VR1 = 1, VR0 = 0
VR1 = 0, VR0 = 0
VR1 = 0, VR0 = 1
Shutdown Current vs Temperature
BATTERY VOLTAGE (V)
0
160
140
120
100
80
60
40
20
0
2
46
8
1325 G04
10
12
VR1 = 1, VR0 = 1
VR1 = 1, VR0 = 0
VR1 = 0, VR0 = 0
VR1 = 0, VR0 = 1
VDD = 12V, RSENSE = 1Ω,
L = 100
µH, P1: IRF9531
TEMPERATURE (
°C)
0
0
0.1
0.3
0.4
0.5
1.0
0.7
20
40
50
1325 G07
0.2
0.8
0.9
0.6
10
30
60
70
80
VCELL FOR EDV = HIGH
VTBAT FOR HTF = HIGH, VHTF = 0.4V
VCELL FOR BATR = HIGH



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