isl23512 Intersil Corporation, isl23512 Datasheet

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isl23512

Manufacturer Part Number
isl23512
Description
Low Noise, Low Power, 16 Taps, Push Button Controlled Potentiometer
Manufacturer
Intersil Corporation
Datasheet
Low Noise, Low Power, 16 Taps, Push
Button Controlled Potentiometer
he Intersil ISL23512 is a three-terminal digitally-controlled
potentiometer (XDCP) implemented by a resistor array
composed of 15 resistive elements and a wiper switching
network. The ISL23512 features a pushbutton control, a
shutdown mode, as well as an industry-leading microTQFN
package.
The pushbutton 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 one second.
Forcing both PU and PD low for more than two seconds
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 ISL23512 as a voltage divider. A rheostat is
easily formed by floating an end terminal or connecting it to
the wiper.
Pinout
Ordering Information
NOTES:
ISL23512WFRU10Z-TK
1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and NiPdAu
2. Please refer to TB347 for details on reel specifications.
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.
PART NUMBER
(Notes 1, 2)
V
RH
PU
PD
SS
1
2
3
4
O
(10 LD µTQFN)
TOP VIEW
ISL23512
®
RW
NC
10
5
GB
1
PART MARKING
Data Sheet
9
8
7
6
NC
V
NC
RL
CC
Single Push Button Controlled Potentiometer (XDCP™)
R
(kΩ)
TOTAL
10
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2007. All Rights Reserved
TEMPERATURE
Features
• Solid-state volatile potentiometer
• Push button controlled
• Single or Auto increment/decrement
• Shutdown Mode
• 16 wiper tap points
• Low power CMOS
• R
• Packages
Applications
• Volume Control
• LED/LCD Brightness Control
• Contrast Control
• Programming Bias Voltages
• Ladder Networks
RANGE (°C)
-40 to +125
November 27, 2007
- Fast Mode after 1s button press
- Zero scale wiper position on power-up
- V
- Terminal voltage, 0 to V
- Standby current, 3µA max
- 10 Ld µTQFN (2.05mmx1.55mm)
- Pb-free (RoHS compliant)
TOTAL
CC
All other trademarks mentioned are the property of their respective owners.
= 2.7V to 5.5V
value = 10k
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
10 Ld µTQFN
Ω
PACKAGE
(Pb-free)
CC
ISL23512
L10.2.1x1.6A
PKG. DWG. #
FN6590.0

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isl23512 Summary of contents

Page 1

... 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 ISL23512 as a voltage divider. A rheostat is easily formed by floating an end terminal or connecting it to the wiper. Pinout ISL23512 (10 LD µ ...

Page 2

... The negative-edge triggered input with internal pull-up. Toggling PD will move the wiper close to RL terminal The RH and RL pins of the ISL23512 are equivalent to the fixed terminals of a mechanical potentiometer. The minimum voltage and the maximum The terminology of RH and RL references the relative position of the terminal in relation to wiper movement direction selected by the PU/PD input. ...

Page 3

... RINL Integral Non-linearity (Note 15) RDNL Differential Non-linearity (Note 14) Roffset Offset (Note 13) 3 ISL23512 Thermal Information Thermal Resistance (Typical, Notes 3, 4) θ +0 µTQFN . . . . . . . . . . . . . . . . . . . . CC Maximum Junction Temperature (Plastic Package +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below CC http://www.intersil.com/pbfree/Pb-FreeReflow.asp Recommended Operating Conditions Temperature Range (Extended Industrial .-40° ...

Page 4

... Max Ri Min Ri +165°C + 17. Limits should be considered typical and are not production tested. 18. Parts are 100% tested at +25°C. Over-temperature limits established by characterization and are not production tested. 4 ISL23512 TEST CONDITIONS V = 5.5V, perform wiper move CC operation Monotonic over all tap positions V ...

Page 5

... AC timing diagram refers to the minimum incremental change in the wiper voltage. Fast Mode Timing *MI in the AC timing diagram refers to the minimum incremental change in the wiper voltage. Shutdown Mode Timing ISL23512 GAP FAST t S SLOW * MI ...

Page 6

... CC -0. TAP POSITION (DECIMAL FIGURE 3. DNL vs TAP POSITION IN VOLTAGE DIVIDER MODE FOR 10kΩ (W) 0.0030 V = 2.7V 0.0025 CC 0.0020 0.0015 0.0010 0.0005 0 -40 - TEMPERATURE (ºC) FIGURE 5. ZS ERROR vs TEMPERATURE 6 ISL23512 3.0 2.5 2.0 1.5 1 5.5V CC 0.05 0.00 -0.05 -0. FIGURE 4. INL vs TAP POSITION IN VOLTAGE DIVIDER -0 ...

Page 7

... FIGURE 9. END TO END R % CHANGE vs TOTAL TEMPERATURE 300 250 200 V = 2.7V CC 150 100 TAP POSITION (DECIMAL) FIGURE 11. TC FOR RHEOSTAT MODE IN ppm 7 ISL23512 (Continued) 0.5 0.3 0.1 -0.1 -0.3 -0 FIGURE 8. INL vs TAP POSITION IN RHEOSTAT MODE FOR 2. 110 FIGURE 10 ...

Page 8

... RH RL The V ramp rate specification is always in effect. CC Pin Descriptions RH and RL The RH and RL pins of the ISL23512 are equivalent to the fixed terminals of a mechanical potentiometer. The minimum voltage is V and the maximum and RL references the relative position of the terminal in relation to wiper movement direction. ...

Page 9

... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 9 ISL23512 L10.2.1x1. ...

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