LTC1871 Linear Technology, LTC1871 Datasheet - Page 5

• Manufacturer Part Number: LTC1871
• Description: Wide Input Range/ No RSENSE Current Mode Boost/ Flyback and SEPIC Controller
• Manufacturer: Linear Technology

TYPICAL PERFOR A CE CHARACTERISTICS
325
320
315
310
305
300
295
290
285
275
280
1.5
1.4
1.2
1.3
5.2
5.1
5.0
–50
0
RUN Thresholds vs V
0
Frequency vs Temperature
INTV
V
IN
–25
= 7.5V
10
CC
10
0
Load Regulation
20
TEMPERATURE ( C)
INTV
25
30
CC
V
IN
50
20
LOAD (mA)
40
(V)
75
IN
50
100 125 150
30
60
W
70
1871 G13
1871 G16
1871 G10
U
40
80
1.40
1.35
1.30
1.25
1.20
155
145
140
160
150
5.4
5.3
5.1
5.2
–50
–50
0
RUN Thresholds vs Temperature
Maximum Sense Threshold
vs Temperature
INTV
–25
–25
5
CC
Line Regulation
10
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
15
V
IN
50
50
20
(V)
75
75
25
100 125 150
100
30
125
35
1871 G11
1871 G14
1871 G17
150
40
1000
300
500
450
400
350
250
200
150
100
100
35
30
25
50
10
0
–50
0
0
INTV
vs Current, Temperature
R
SENSE Pin Current vs Temperature
GATE HIGH
V
T
SENSE
100
–25
vs Frequency
CC
200
= 0V
Dropout Voltage
0
5
300
TEMPERATURE ( C)
INTV
FREQUENCY (kHz)
25
400
CC
25 C
LOAD (mA)
500
50
10
75 C
LTC1871
600
125 C
75
700
100 125 150
15
150 C
–50 C
800
0 C
900
1871 G12
1871 G15
1871 G18
5
1000
20