LTC4000_15 Datasheet, PDF (7/40 Pages) Linear Technology – High Voltage High Current Controller for Battery Charging and Power Management

Typical Performance Characteristics
LTC4000
Charge Termination Time with 0.1µF
Timer Capacitor Over Temperature
3.5
3.3
3.1
2.9
2.7
2.5
2.3
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G10
PowerPath Fast Off, Fast On
and Forward Regulation Over
Temperature
120 VIID = VBAT = 15V
90
60
30
0
–30
–60
–90
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G13
NTC Thresholds Over
Temperature
80
75
V_NTC(COLD)
70
65
60
55
V_NTC(OPEN)
50
45
V_NTC(HOT)
40
35
30
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G11
PowerPath Turn-On Gate Clamp
Voltage Over Temperature
15.0 _{VIID = VBAT = 15V}
14.5
14.0
13.5
13.0
12.5
12.0
11.5
11.0
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G14
BIAS Voltage at 0.5mA Load Over
Temperature
3.2
3.1
3.0
V_IN = 60V
2.9
V_IN = 15V
V_IN = 3V
2.8
2.7
2.6
2.5
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G16
I_TH Pull-Down Current Over
Temperature
1.5
V_ITH = 0.4V
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G17
For more information www.linear.com/LTC4000
PowerPath Forward Voltage
Regulation Over Temperature
14
12
V_IID = V_BAT = 15V
10
V_IID = V_BAT = 3V
8
6
V_IID = V_BAT = 60V
4
2
0
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G12
PowerPath Turn-Off Gate Voltage
Over Temperature
600 _{VCSP = VCSN = 15V}
550
500
450
400
350
300
250
200
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4000 G15
I_TH Pull-Down Current
vs V_ITH
2.5
2.0
1.5
1.0
0.5
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
V_ITH (V)
4000 G18
4000fb
7