LTC3813 Datasheet, PDF (6/32 Pages) Linear Technology – 100V Current Mode Synchronous Step-Up Controller

LTC3813
TYPICAL PERFORMANCE CHARACTERISTICS
Off-Time vs Temperature
680
I_OFF = 300μA
660
640
620
600
580
Maximum Current Sense
Threshold vs V_RNG Voltage
400
300
200
100
Maximum Current Sense
Threshold vs Temperature
230
V_RNG = INTV_CC
220
210
200
190
560
0
–50 –25 0 25 50 75 100 125
0.5
TEMPERATURE (°C)
3813 G10
1
1.5
V_RNG VOLTAGE (V)
2
3813 G11
180
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3813 G12
Feedback Reference Voltage
vs Temperature
0.803
0.802
Driver Peak Source Current
vs Temperature
2.5
V_BOOST = V_INTVCC = 10V
Driver Pulldown R_DS(ON)
vs Temperature
1.50
V_BOOST = V_INTVCC = 10V
1.25
0.801
2.0
1.00
0.800
0.75
0.799
1.5
0.50
0.798
0.25
0.797
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3813 G13
1
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3813 G14
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3813 G15
Driver Peak Source Current
vs Supply Voltage
3.0
Driver Pulldown R_DS(ON)
vs Supply Voltage
1.1
2.5
1.0
2.0
0.9
1.5
0.8
1.0
0.5
0.7
6
0
5 6 7 8 9 10 11 12 13 14 15
DRV_CC/BOOST VOLTAGE (V)
3813 G16
0.6
6 7 8 9 10 11 12 13 14 15
DRV_CC/BOOST VOLTAGE (V)
3813 G17
3813fb