The DS1050Z-001+ is a 5bit programmable pulse width modulator (PWM) with 2-wire addressable controlled interface in 8 pin NSOIC package. The PWM output provides signal that swings from 0V to VCC. The device requires typical operating current of 50μA and programmable shutdown supply current of 1μA. The 2-wire addressable interface allows operation of multiple devices on 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 DS1050 is ideal for low cost LCD contrast and/or brightness control, power supply voltage adjustment and battery charging or current adjustment.
Supply voltage range from 2.7V to 5.5V
Operating temperature range from -40°C to 85°C
Standard PWM output frequency of 1KHz
2-wire interface gives processor control of PWM functions
Adjustable duty cycle from 0% to 100%
SCL clock frequency of 400KHz (fast mode) and 100KHz (standard mode)
Output frequency tolerance of ±20% and output impedance of 200 ohm
Absolute linearity of ±0.5LSB and relative linearity of ±0.25LSB
(EN)
