DS1050Z-010+

Overview

The DS1050Z-010+ is a single 5-bit programmable pulse-width modulator (PWM) from Analog Devices/Maxim Integrated, housed in an 8-pin 150-mil SOIC package. It operates on a 2.7V to 5.5V supply with a typical active current of 50µA and standby current under 1µA. The device provides a standard output frequency of 10kHz, adjustable duty cycle from 0% to 100%, and features a 2-wire addressable serial interface for multi-device bus control. It supports shutdown modes and is rated for operation between -40°C and +85°C.

Feature Summary

• 5-bit PWM resolution with 0% to 100% adjustable duty cycle
• Standard 10kHz output frequency with ±20% tolerance
• 2-wire addressable serial interface supporting up to 8 devices per bus
• Low power consumption: 50µA active, <1µA standby

Applications

• LCD contrast and brightness control
• DC fan motor speed control
• Power supply voltage adjustment
• Battery charging current regulation

Procurement Notes

Verify the specific suffix Z-010+ corresponds to the 10kHz frequency variant in the 8-pin SOIC package. Confirm the manufacturer source is Analog Devices or Maxim Integrated. Check for RoHS compliance status indicated by the '+' suffix. Ensure the ordering information matches the required frequency and package type for the design.

Selection Notes

Select this component when a low-cost, addressable PWM controller is needed for multiple loads on a single bus. The 10kHz frequency is suitable for audio-frequency applications like LCD backlights or small fans. Consider the 5-bit resolution limits if finer granularity is required. Verify that the 2-wire interface compatibility exists with the host microcontroller.

Part Context

The DS1050 series includes variants with frequencies of 1kHz, 5kHz, 10kHz, and 25kHz. The 'Z' suffix denotes the 8-pin 150-mil SOIC package, while 'U' denotes the 8-pin 118-mil µSOP. The DS1050Z-010+ specifically refers to the 10kHz version in the standard SOIC package.

Replacement Considerations

Direct substitutes within the same family include DS1050Z-001+, DS1050Z-005+, and DS1050Z-025+ for different frequencies. Package alternatives are available as DS1050U-010+ in the µSOP format. Cross-vendor replacements require matching the 2-wire interface protocol and 5-bit PWM resolution.