DS4301 Rev 0 8/03 Nonvolatile, 32-Position Digital Potentiometer General Description Features The DS4301 is a single 32-position linear digital poten- Single, 32-Position, 200k Linear Nonvolatile (NV) tiometer with 200k end-to-end resistance. The wiper Potentiometer Ideal for Battery-Powered setting is stored in EEPROM, so the DS4301 powers up Applications with the last stored setting. The position of the wiper is Three-Terminal Increment/Decrement Interface to controlled through a simple three-terminal increment/decrement interface. The DS4301 is ideal for Adjust Wiper Position white LED backlight brightness control. Its 8-pin SOP Wide Voltage Supply Range (2.4V to 5.5V) package, 2.4V to 5.5V supply range, and 200k end- to-end resistance are especially suited for portable, Command-Initiated NV Wiper Storage battery-powered applications such as cellular tele- Operates Over the Industrial Temperature Range phones and PDAs. (-40C to +85C) Available in 8-Pin SOP Ordering Information Applications White LED Backlight Brightness Control PART TEMP RANGE PIN-PACKAGE Portable Battery-Powered Devices such as PDAs DS4301U-200 -40C to +85C 8 SOP (118 mil) and Cellular Phones Any Application that Requires a Small, Low-Cost NV Potentiometer Pin Configuration TOP VIEW INC 1 8 V CC U/D 2 7 CS DS4301 H 3 6 L GND 4 5 W SOP Typical Operating Circuit V CC 10H MBR0540 V CC V V CC REF 1F 10F V H 1F CC 0.1F DS4301 W V EXT CC CS WHITE WHITE LED CONTROL ADJ CS LEDs INC CURRENT INTERFACE L REGULATOR U/D FB GND GND PGND R FB Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Nonvolatile, 32-Position Digital Potentiometer ABSOLUTE MAXIMUM RATINGS Voltage Range on V Pin Relative to Ground .....-0.5V to +6.0V Programming Temperature.....................................0C to +70C CC Voltage Range on CS, INC, U/D, L, W, H Pins Storage Temperature Range .............................-55C to +125C Relative to Ground*.....................................-0.5V to V + 0.5V Soldering Temperature .......................................See IPC/JEDEC CC Wiper Current .....................................................................3mA J-STD-020A Specification Operating Temperature Range ...........................-40C to +85C *Not to exceed 6.0V Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED DC OPERATION CONDITIONS (V = V to V T = -40C to +85C, unless otherwise specified.) CC CC MIN CC MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V (Note 1) +2.4 +5.5 V CC Input Logic 1 (CS, INC, U/D)V 0.7 x V V + 0.3 V IH CC CC Input Logic 0 (CS, INC, U/D)V -0.3 +0.3 x V V IL CC Resistor Inputs L, H, W -0.3 V + 0.3 V CC Wiper Current I -1 +1 mA W DC ELECTRICAL CHARACTERISTICS (V = V to V T = -40C to +85C, unless otherwise specified.) CC CC MIN CC MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Leakage I -1 +1 A L 3V 30 60 Standby Current (Note 2) I A STBY 5V 15 60 Digital Input Capacitance C 10 pF I/O ANALOG RESISTOR CHARACTERISTICS (V = V to V T = -40C to +85C, unless otherwise specified.) CC CC MIN CC MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS End-to-End Resistor Tolerance T = +25C -20 +20 % A Wiper Resistance R 500 2000 W Absolute Linearity (Note 3) -0.5 +0.5 LSB Relative Linearity (Note 4) -0.25 +0.25 LSB End-to-End Temp Coefficient -250 +250 ppm/C Ratiometric Temp Coefficient 7 ppm/C 2 DS4301