Datasheet

LTC3773
7
3773fb
TYPICAL PERFORMANCE CHARACTERISTICS
Maximum Current Limit
Threshold vs Duty Factor
TEMPERATURE (°C)
–50
V
FB
(mV)
ΔV
FB
(%)
603.0
604.5
606.0
100 12575
3773 G12
597.0
598.5
601.5
600.0
595.5
594.0
0.50
0.75
1.00
–0.50
–0.25
0.25
0
–0.75
–1.00
–25
0
25 50
Error Amplifi er gm
vs Temperature
Maximum Current Limit
Threshold vs Temperature
Maximum Current Limit
Threshold vs V
ITH
TEMPERATURE (°C)
–50
ERROR AMPLIFIER gm (mmho)
3.1
3.2
100 12575
3773 G13
2.7
2.8
3.0
2.9
2.6
2.5
2.4
2.3
–25
0
25 50
TEMPERATURE (°C)
–50
V
SENSE
(mV)
ΔV
SENSE
(%)
84
100 12575
3773 G14
75
81
78
72
69
66
12
0
8
4
–4
–8
–12
–25
0
25 50
V
SENSE
– = 5V
V
SENSE
– = 2.5V
V
SENSE
– = 0.6V
V
ITH
(V)
0
V
SENSE
(mV)
80
2.4 2.72.11.8
3773 G15
40
60
20
0
–20
–40
0.3
0.6 0.9
1.2 1.5
V
FB
= 0.58V
V
SENSE
COMMON MODE VOLTAGE (V)
0
V
SENSE
(mV)
90
5 5.54.543.53
3773 G16
75
78
87
84
81
69
72
66
63
60
0.5
1 1.5
2 2.5
V
CC
= 5V
V
FB
= 0.58V
DUTY FACTOR (%)
0
V
SENSE
(mV)
80
10090807060
3773 G17
50
70
60
30
40
20
10
0
10
20 30
40 50
V
FB
vs Temperature
Maximum Current Limit
Threshold vs SENSE Common
Mode Voltage