isl22512 Intersil Corporation, isl22512 Datasheet - Page 9

• Manufacturer Part Number: isl22512
• Description: Single Push Button Controlled Potentiometer Xdcp?
• Manufacturer: Intersil Corporation

Shutdown Mode
The ISL22512 enters into Shutdown Mode if both PU and
PD inputs are kept LOW for 2 seconds. In this mode, the
resistors array is totally disconnected from its RH pin and the
wiper is moved to position closest to RL pin, as shown in
Figure 13. Note, that PU and PD inputs must be pulled LOW
within t
Timing” on page 5. Otherwise all command will be ignored till
both inputs will be released.
Holding either PU , PD or ASE input LOW for more than
15ms will exit shutdown mode and return wiper to prior
shutdown position. If PU or PD will be held LOW for more
than 250ms, the ISL22512 will start auto-increment or
auto-decrement of wiper position.
R
The end- to-end resistance of the array will fluctuate once
V
CC
TOTAL
FIGURE 13. DCP CONNECTION IN SHUTDOWN MODE
is removed.
DB
with V
time window of 15ms, see “Shutdown Mode
CC
Removed
9
RH
RW
RL
ISL22512
March 24, 2008
FN6679.0