Datasheet ISL22511 Low Noise, Low Power, 32 Taps, Up/Down, Single Push-Button Controlled Potentiometer (XDCP) The ISL22511 is a three-terminal digitally-controlled Features potentiometer (XDCP) implemented by a resistor Solid-state non-volatile potentiometer array composed of 31 resistive elements and a wiper Push button controlled switching network. The ISL22511 features a push-button control, a Shutdown mode, and an Single or auto increment/decrement industry-leading UTQFN package. Fast mode after 1s button press The push-button control has individual PU and PD AUTOSTORE of last wiper position or manual store inputs for adjusting the wiper. To eliminate of wiper position redundancy, the wiper position automatically increments or decrements if one of these inputs is Shutdown mode held longer than one second. 32 wiper tap points Forcing both PU and PD low for more than two Max scale wiper position on power-up seconds activates shutdown mode. Shutdown mode Low power CMOS disconnects the top of the resistor chain and moves the wiper to the lowest position to minimize power V = 2.7V to 5.5V CC consumption. Terminal voltage, 0V to V CC The three terminals accessing the resistor chain Standby current, 3A max naturally configure the ISL22511 as a voltage divider. R value = 10k TOTAL A rheostat is easily formed by floating an end terminal or connecting it to the wiper. High reliability Endurance: 1000000 data changes per bit per Related Literature register For a full list of related documents, visit our website: Register data retention: 50 years at T +55C ISL22511 device page 10 Ld UTQFN (2.1mmx1.6mm) package Applications Pb-free (RoHS compliant) Volume control LED/LCD brightness control Contrast control Programming bias voltages Ladder networks V (Supply Voltage) CC NC O 1 9 V PU CC RH UTQFN PU 2 8 ASE PD (Top View) Control RH 3 7 RL PD RW Block V 6 4 RW SS ASE RL NC V (Ground) SS FN6678 Rev.6.01 Page 1 of 15 Jun.9.20 5 10ISL22511 1. Overview 1. Overview 1.1 Block Diagrams General Detailed V (Supply Voltage) CC 5-Bit RH 31 PU Up/Down PD Counter 30 29 RH PU 5-Bit 28 Nonvolatile One Control Memory of PD and RW RW Memory 32 Transfer Resistor Decoders Gates Array ASE Store and Control RL Recall 2 ASE Circuitry 1 0 V (Ground) SS RL Figure 1. Block Diagrams 1.2 Ordering Information Part Number Tape and Reel Package (Notes 2, 3)Part Marking R (k ) Temp. Range (C) (Units) (Note 1) (RoHS Compliant) Pkg. Dwg. TOTAL ISL22511WFRU10Z-TK GD 10 -40 to +125 1k 10 Ld UTQFN L10.2.1x1.6A Notes: 1. See TB347 for details about reel specifications. 2. These Pb-free plastic packaged products employ special Pb-free material sets molding compounds/die attach materials and NiPdAu-Ag plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. 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. 3. For Moisture Sensitivity Level (MSL), see the ISL22511 device page. For more information about MSL, see TB363. 1.3 Pin Configuration 10 Ld UTQFN Top View NC O VCC PU 1 9 2 8 ASE PD RH 3 7 RL VSS RW 4 6 NC FN6678 Rev.6.01 Page 2 of 15 Jun.9.20 5 10