1
FN6588.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas LLC
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas LLC 2007, 2008, 2015. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL23511
Single Push Button Controlled Potentiometer (XDCP™)
Low Noise, Low Power, 32 Taps, Push
Button Controlled Potentiometer
The Intersil ISL23511 is a three-terminal digitally-controlled
potentiometer (XDCP) implemented by a resistor array
composed of 31 resistive elements and a wiper switching
network. The ISL23511 features a push button control, a
shutdown mode, as well as an industry-leading µTQFN
package.
The push button control has individual PU
and PD inputs for
adjusting the wiper. To eliminate redundancy, the wiper
position will automatically increment or decrement if one of
these inputs is held longer than 1s.
Forcing both PU
and PD low for more than 2s activates
shutdown mode. Shutdown mode disconnects the top of the
resistor chain and moves the wiper to the lowest position,
minimizing power consumption.
The three terminals accessing the resistor chain naturally
configure the ISL23511 as a voltage divider. A rheostat is
easily formed by floating an end terminal or connecting it to
the wiper.
Features
• Solid-state volatile potentiometer
• Push button controlled
• Single or Auto increment/decrement
- Fast Mode after 1s button press
• Shutdown Mode
• 32 wiper tap points
- Zero scale wiper position on power-up
• Low power CMOS
-V
CC
= 2.7V to 5.5V
- Terminal voltage, 0 to V
CC
- Standby current, 3µA max
•R
TOTAL
value = 10k50k
• Packages
- 8 Ld SOIC and 10 Ld µTQFN (2.1mmx1.6mm)
• Pb-free (RoHS compliant)
Applications
• Volume Control
• LED/LCD Brightness Control
• Contrast Control
• Programming Bias Voltages
• Ladder Networks
V
CC
(SUPPLY VOLTAGE)
CONTROL
BLOCK
PU
PD
V
SS
(GROUND)
R
H
R
L
R
W
9
8
7
6
1
2
3
4
NC
V
SS
NC
R
L
V
CC
PU
R
H
5
10
PD
O
R
W
NC
V
CC
NC
PU
PD
R
H
V
SS
1
2
3
4
8
7
6
5
R
L
R
W
O
µTFQFN
(TOP VIEW)
SOIC
(TOP VIEW)
N
O
L
O
N
G
E
R
A
V
A
I
L
A
B
L
E
O
R
S
U
P
P
O
R
T
E
D
Ordering Information
PART
NUMBER
PART
MARKING
R
TOTAL
(k)
TEMP.
RANGE (°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL23511WFB8Z* (Note 1) 23511 WFBZ 10 -40 to +125 8 Ld SOIC M8.15
ISL23511WFRU10Z-TK (Note 2)
(No longer available or
supported)
GA 10 -40 to +125 10 Ld µTQFN L10.2.1x1.6A
*Add “-TK” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
NOTES:
1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100%
matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering
operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and NiPdAu
plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free
products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
Data Sheet September 9, 2015
