LTC3305_15 Datasheet, PDF (6/28 Pages) Linear Technology – Lead-Acid Battery Balancer

LTC3305
Typical Performance Characteristics T_A = 25°C, unless otherwise noted.
I_NGATE vs I_ISET
1.8
1.7 ^{ALL NGATE PIN CURRENTS}
1.6 AND NGATE3 CURRENT
1.5
2
1.4 ^{V4 = 52.8V, VNGATE = 0V}
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
50 60 70 80 90 100 110 120 130 140 150
I_ISET (µA)
3305 G07
I_NGATE vs Temperature
1.20
ALL NGATE PIN CURRENTS
1.18 _{AND NGATE3 CURRENT}
1.16
2
V4 = 52.8V, V_NGATE = 0V, R_ISET = 12kΩ
1.14
1.12
1.10
1.08
1.06
1.04
1.02
1.00
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
3305 G08
UV Threshold vs Temperature
5.25
R_ISET = 12.1k
5.20 R_VL = 15k
5.15
5.10
RISING
5.05
5.00
4.95
FALLING
4.90
4.85
4.80
4.75
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
3305 G09
UV Threshold vs Temperature
10.5
R_ISET = 12.1k
10.4 R_VL = 30.1k
10.3
10.2
10.1
RISING
10.0
9.9
FALLING
9.8
9.7
9.6
9.5
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
3305 G10
OV Threshold vs Temperature
7.70
R_ISET = 12.1k
7.65 R_VH = 22.6k
7.60
7.55
RISING
7.50
7.45
7.40
FALLING
7.35
7.30
7.25
7.20
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
3305 G11
OV Threshold vs Temperature
15.4
R_ISET = 12.1k
15.3 R_VH = 45.3k
15.2
15.1
RISING
15.0
14.9
14.8
FALLING
14.7
14.6
14.5
14.4
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
3305 G12
6
For more information www.linear.com/LTC3305
3305f