DS1050Z-025+

The DS1050Z-025+ 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 25KHz
• 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
• Frequency temperature coefficient of ±200ppm/ºc
• Frequency voltage coefficient of 1.5% per V

Applications

Signal Processing

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party