LTC3305_15 Datasheet, PDF (8/28 Pages) Linear Technology – Lead-Acid Battery Balancer

LTC3305
Typical Performance Characteristics T_A = 25°C, unless otherwise noted.
100mV Termination Threshold
vs Temperature
110
108
106
104
102
100
98
96
94
92
90
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
3305 G19
Minimum Boost Voltage
vs Temperature
7.2
7.1
7.0 _RISING
6.9
6.8
FALLING
6.7
6.6
6.5
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
3305 G20
t_ON, t_OFF vs Temperature
0.510
0.505
V4 = 52.8V
CTON = CTOFF = 10nF (COG)
0.500
0.495
0.490
0.485
0.480
0.475
0.470
0.465
0.460
0.455
0.450
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
3305 G21
t_BAT vs Temperature
5.5
CTBAT = 10nF (COG)
5.4
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
3305 G22
V_OL vs Temperature
45.0
42.5 ^{I = 3mA}
40.0
37.5
35.0
32.5
30.0
27.5
25.0
22.5
20.0
17.5
15.0
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
3305 G23
V_REG Start-Up
CVREG = 2.2µF
500mV/
DIV
0V
100µs/DIV
3305 G24
Boost Charge Pump Start-Up
CH2, 0V
5V/DIV
VOLTAGE ACROSS C_BOOST
VOLTAGE ACROSS C_FLY
CH1, 0V
2V/DIV
5ms/DIV
3305 G25
3305f
8
For more information www.linear.com/LTC3305