DS1052

DS1052 5-Bit, Programmable, 100kHz Pulse-Width Modulator www.maxim-ic.com FEATURES § § § § § § § Single 5-bit, programmable, pulse-width modulator (PWM) Adjustable Duty Cycle: 0% to 100% 2.7V to 5.5V Operation Standard Frequency Value: 100kHz 2-Wire Addressable Interface Packages: 8-Pin (150-mil) SOIC and 8-Pin (118-mil) mSOP Operating Temperature: -40oC to +85oC PIN ASSIGNMENT SCL SDA A0 GND 1 2 3 4 8 7 6 5 VCC A1 A2 PWMo ORDERING INFORMATION DS1052Z-100 DS1052U-100 100kHz 100kHz 8-Pin 150-mil SOIC 8-Pin 118-mil mSOP 8-Pin 150-mil SOIC 8-Pin 118-mil mSOP PIN DESCRIPTION VCC PWMO A0, A1, A2 SDA SCL GND - 2.7V to 5.5V Power Supply - PWM Ouput - Device Address - Serial Data I/O - Serial Clock Input - Ground DESCRIPTION The DS1052 is a programmable, 5-bit, pulse-width modulator featuring a 2-wire addressable controlled interface. The DS1052 operates from power supplies ranging from 2.7V up to 5.5V. The PWM output provides a signal that swings from 0V to VCC. The DS1052-100 requires a typical operating current of 100µA and a programmable shutdown supply current of 1µA. One standard PWM output frequency is offered: 100kHz. The 2-wire addressable interface allows operation of multiple devices on a single 2-wire bus and provides compatibility with other Dallas Semiconductor 2-wire devices such as real-time clocks (RTCs), digital thermometers, and digital potentiometers. The device is ideal for low-cost LCD contrast and/or brightness control, power supply voltage adjustment, an...