Datasheet

LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
13
69921234fc
block DiagraM
(S6 Package Pin Numbers Shown)
6992 BD
PROGRAMMABLE DIVIDER
÷1, 4, 16, 64, 256, 1024, 4096, 16384
MASTER OSCILLATOR
DISABLE OUTPUT
UNTIL SETTLED
POR
OUTPUT
POLARITY
DIGITAL
FILTER
4-BIT A/D
CONVERTER
f
OSC
= 1MHz • 50kΩ •
I
SET
V
SET
POL
R1
R2
DIV
V
+
OUT
D =
t
ON
t
OUT
5
4
1
6
HALT OSCILLATOR
IF I
SET
< 500nA
MCLK
+
–
I
SET
V
SET
= 1V
+
–
V
REF
1V
3 22
GNDSET MOD
R
SET
DUTY CYCLE =
V
MOD(LIM)
– 0.1•V
SET
0.8•V
SET
VOLTAGE LIMITER
V
MOD(LIM)
V
MOD
PULSE WIDTH MODULATOR
t
OUT
t
ON