Datasheet

LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
8
69921234fc
Typical perForMance characTerisTics
N
DIV
> 1 Duty Cycle Error
vs Temperature
N
DIV
> 1 Duty Cycle Error
vs Temperature
N
DIV
= 1 Duty Cycle Clamps
vs Temperature
N
DIV
> 1 Duty Cycle Clamps
vs Temperature
TEMPERATURE (°C)
–50
–5
0
1
2
3
4
5
0 25 50
100 125
–1
–2
–3
–4
–25
75
6992 G22
ERROR (%)
V
MOD
/V
SET
= 0.5 (50%)
DIVCODE = 4
3 PARTS
GUARANTEED MAX
GUARANTEED MIN
TEMPERATURE (°C)
–50
–5
0
1
2
3
4
5
0 25 50
100 125
–1
–2
–3
–4
–25
75
6992 G23
ERROR (%)
V
MOD
/V
SET
= 0.8 (87.5%)
DIVCODE = 4
3 PARTS
GUARANTEED MAX
GUARANTEED MIN
TEMPERATURE (°C)
–50 –25
3
8
95
94
93
92
96
97
50250
100 125
7
6
5
4
75
6992 G24
ERROR (%)
DIVCODE = 0
3 PARTS
LTC6992-2/LTC6992-3
V
MOD
= V
SET
LTC6992-2/LTC6992-4
V
MOD
= GND
TEMPERATURE (°C)
–50 –25
3
8
95
94
93
92
96
97
50250
100 125
7
6
5
4
75
6992 G25
DUTY CYCLE (%)
DIVCODE = 4
3 PARTS
LTC6992-2/LTC6992-3
V
MOD
= V
SET
LTC6992-2/LTC6992-4
V
MOD
= GND
V
+
= 3.3V, R
SET
= 200k, and T
A
= 25°C, unless
otherwise noted.
N
DIV
= 1 Duty Cycle vs V
MOD
/ V
SET
N
DIV
> 1 Duty Cycle vs V
MOD
/ V
SET
Duty Cycle Error vs DIVCODE
Duty Cycle Error vs DIVCODE
Duty Cycle Error vs DIVCODE
V
MOD
/V
SET
(V/V)
0 0.2
0
40
80
70
60
50
90
100
0.80.60.4
1
30
20
10
6992 G29
DUTY CYCLE (%)
DIVCODE = 0
3 PARTS
LTC6992-1/
LTC6992-4
LTC6992-2/
LTC6992-4
LTC6992-1/LTC6992-3
LTC6992-2/
LTC6992-3
V
MOD
/V
SET
(V/V)
0 0.2
0
40
80
70
60
50
90
100
0.80.60.4
1
30
20
10
6992 G30
DUTY CYCLE (%)
DIVCODE = 4
3 PARTS
LTC6992-1/
LTC6992-4
LTC6992-2/
LTC6992-4
LTC6992-1/LTC6992-3
LTC6992-2/
LTC6992-3
DIVCODE
0 2
–5
–1
3
2
1
0
4
5
864
12 14
–2
–3
–4
10
6992 G26
ERROR (%)
V
MOD
/V
SET
= 0.2 (12.5%)
3 PARTS
DIVCODE
0 2
–5
–1
3
2
1
0
4
5
864
12 14
–2
–3
–4
10
6992 G27
ERROR (%)
V
MOD
/V
SET
= 0.5 (50%)
3 PARTS
DIVCODE
0 2
–5
–1
3
2
1
0
4
5
864
12 14
–2
–3
–4
10
6992 G28
ERROR (%)
V
MOD
/V
SET
= 0.8 (87.5%)
3 PARTS