DS1050U-010+

Overview

The DS1050U-010+ is a single 5-bit programmable pulse-width modulator (PWM) from Analog Devices/Maxim Integrated, housed in an 8-pin µSOP 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, with duty cycle adjustable from 0% to 96.88% in 3.125% steps, or set to 100%. Control is managed via a 2-wire addressable serial interface compatible with standard and fast mode protocols.

Feature Summary

• Single 5-bit PWM with adjustable duty cycle from 0% to 100%
• Standard 10kHz output frequency
• 2-Wire Addressable Serial Interface for multi-device bus control
• Low power consumption: 50µA active, <1µA shutdown

Applications

• LCD contrast and brightness control
• Power supply voltage adjustment
• Battery charging or current adjustment

Procurement Notes

Verify the specific suffix 'U' corresponds to the 8-pin (118-mil) µSOP package rather than the SOIC variant. Confirm the '-010' designation indicates the 10kHz frequency option. Check RoHS compliance status as indicated in distributor documentation. Ensure the source document matches the official Maxim Integrated datasheet for accurate pinout and electrical specifications.

Selection Notes

Select this component when a low-cost, space-saving PWM solution is required for single-channel applications. The µSOP package is suitable for designs needing reduced footprint compared to standard SOIC. Ensure the system supports 2-wire I2C-compatible communication for addressing and configuration. Verify that the 10kHz frequency aligns with the target application's timing requirements.

Part Context

This part belongs to the DS1050 family of programmable PWMs, which includes variants with different frequencies (1kHz, 5kHz, 25kHz) and packages (SOIC, µSOP). The 'U' suffix specifically denotes the µSOP package, while 'Z' denotes the SOIC package. All variants share identical electrical characteristics and interface protocols.

Replacement Considerations

Direct replacements within the same family include DS1050Z-010+ (SOIC package) for board layout flexibility if package size is not critical. Other frequency options like DS1050U-005+ (5kHz) or DS1050U-025+ (25kHz) are pin-compatible but differ in output frequency.