Datasheet

LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
30
69921234fc
Isolated PWM (5% to 95%) Controller
6992 TA14
LTC6992-2
MOD
GND
SET
OUT
V
+
DIV
LT1011
LT1636
CONCEPT DESIGN USING SIMPLE R-C FILTERING FOR PWM CONTROL.
NOT OPTIMIZED FOR OFFSETS.
T1: PCA EPF8119S ETHERNET TRANSFORMER
R2
100k
V
+
R10
499k
+
–
R15
10k
1kHz
SOURCE
PWM
R14
10k
R1
10k
100kHz
INTERMEDIATE PWM
R9
20k
L1
+
–
C1
1µF
0.1µF
L2
LTC6992-2
MOD
GND
SET
OUT
V
+
DIV
LT1011
LT1636
R4
10k
ISOV
+
ISOV
+
ISOV
+
R11
787k
R12
1M
ISOPWM
R13
280k
R3
1k
+
–
R6
4.99k
1kHz
ISOLATED PWM
ISOLATION
BARRIER
T1
R8
10k
C3
1000pF
R7
1k
+
–
C2
0.1µF
R17
10k
R18
100k
R16
100k
••
V
+
R5
20k
C4
1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
Typical applicaTions