Datasheet

LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
7
69921234fc
Typical perForMance characTerisTics
N
DIV
> 1 Duty Cycle Error vs R
SET
N
DIV
> 1 Duty Cycle Error vs R
SET
N
DIV
> 1 Duty Cycle Error vs R
SET
N
DIV
= 1 Duty Cycle Clamps
vs R
SET
N
DIV
> 1 Duty Cycle Error vs R
SET
R
SET
(k)
50
–5
0
3
2
1
4
5
100
400 800
–1
–2
–3
–4
200
6992 G13
ERROR (%)
V
MOD
/V
SET
= 0.2 (12.5%)
DIVCODE = 4
3 PARTS
R
SET
(k)
50
–5
0
3
2
1
4
5
100
400 800
–1
–2
–3
–4
200
6992 G14
ERROR (%)
V
MOD
/V
SET
= 0.5 (50%)
DIVCODE = 4
3 PARTS
R
SET
(k)
50
–5
0
3
2
1
4
5
100
400 800
–1
–2
–3
–4
200
6992 G15
ERROR (%)
V
MOD
/V
SET
= 0.8 (87.5%)
DIVCODE = 4
3 PARTS
R
SET
(k)
50
3
8
95
94
93
92
96
97
100
400 800
7
6
5
4
200
6992 G16
ERROR (%)
DIVCODE = 0
3 PARTS
LTC6992-2/LTC6992-3
V
MOD
= V
SET
LTC6992-2/LTC6992-4
V
MOD
= V
SET
R
SET
(k)
50
3
8
95
94
93
92
96
97
100
400 800
7
6
5
4
200
6992 G17
ERROR (%)
DIVCODE = 4
3 PARTS
LTC6992-2/LTC6992-3
V
MOD
= V
SET
LTC6992-2/LTC6992-4
V
MOD
= V
SET
V
+
= 3.3V, R
SET
= 200k, and T
A
= 25°C, unless
otherwise noted.
N
DIV
= 1 Duty Cycle Error
vs Temperature
TEMPERATURE (°C)
–50
–5
0
1
2
3
4
5
0 25 50
100 125
–1
–2
–3
–4
–25
75
6992 G18
ERROR (%)
V
MOD
/V
SET
= 0.2 (12.5%)
DIVCODE = 0
3 PARTS
GUARANTEED MAX
GUARANTEED MIN
N
DIV
= 1 Duty Cycle Error
vs Temperature
TEMPERATURE (°C)
–50
–5
0
1
2
3
4
5
0 25 50
100 125
–1
–2
–3
–4
–25
75
6992 G19
ERROR (%)
V
MOD
/V
SET
= 0.5 (50%)
DIVCODE = 0
3 PARTS
GUARANTEED MAX
GUARANTEED MIN
N
DIV
= 1 Duty Cycle Error
vs Temperature
TEMPERATURE (°C)
–5
0
1
2
3
4
5
–1
–2
–3
–4
6992 G20
ERROR (%)
V
MOD
/V
SET
= 0.8 (87.5%)
DIVCODE = 0
3 PARTS
GUARANTEED MAX
GUARANTEED MIN
–50 0 25 50
100 125
–25
75
N
DIV
> 1 Duty Cycle Error
vs Temperature
TEMPERATURE (°C)
–50
–5
0
1
2
3
4
5
0 25 50
100 125
–1
–2
–3
–4
–25
75
6992 G21
ERROR (%)
V
MOD
/V
SET
= 0.2 (12.5%)
DIVCODE = 4
3 PARTS
GUARANTEED MAX
GUARANTEED MIN