ISL23511_08 Datasheet, PDF (1/10 Pages) Intersil Corporation – Single Push Button Controlled Potentiometer

ISL23511
®
Single Push Button Controlled Potentiometer (XDCP™)
Data Sheet
January 21, 2008
FN6588.1
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.
V_CC (SUPPLY VOLTAGE)
PU
PD
CONTROL
BLOCK
V_SS (GROUND)
NC
O
PU ₁
9 ^VCC
PD ₂ ^µTFQFN ₈ NC
R_H
R_{H 3} ^{(TOP VIEW)} ₇ R_L
V_{SS 4}
6 ^RW
R_W
NC
O
PU 1
8 V_CC
R_L
PD 2 SOIC 7 NC
R_H 3 (TOP VIEW) 6 R_L
V_SS
4
5 R_W
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 = 10kΩ, 50kΩ
• 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
Ordering Information
PART
NUMBER
PART
MARKING
R_TOTAL
(kΩ)
TEMP.
RANGE (°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL23511WFB8Z* (Note 1)
23511 WFBZ
10
-40 to +125
8 Ld SOIC
M8.15
ISL23511UFB8Z* (Note 1)
23511 UFBZ
50
-40 to +125
8 Ld SOIC
M8.15
ISL23511WFRU10Z* (Note 2)
GA
10
-40 to +125
10 Ld µTQFN
L10.2.1x1.6A
ISL23511UFRU10Z* (Note 2)
FZ
50
-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.
1
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 Inc.
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2007, 2008. All Rights Reserved
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