DS1050U-001+T

Overview

The DS1050U-001+T is a programmable, 5-bit pulse-width modulator (PWM) from Analog Devices/Maxim Integrated. It operates on a single 2.7V to 5.5V supply and features a standard 2-wire addressable serial interface for communication. The device provides four selectable output frequencies: 1kHz, 5kHz, 10kHz, and 25kHz. It supports duty cycle adjustments from 0% to 96.88% in 3.125% steps, with an additional command for 100% full-on operation. The component draws a typical active current of 50µA and reduces to 1µA in shutdown mode. It is housed in an 8-pin 118-mil µSOP package.

Feature Summary

• 5-bit PWM resolution with adjustable duty cycle from 0% to 100%
• Standard 2-wire addressable serial interface compatible with I²C protocols
• Four fixed frequency options: 1kHz, 5kHz, 10kHz, and 25kHz
• Low power consumption: 50µA active, 1µA standby

Applications

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

Procurement Notes

Verify the ordering suffix '+T' indicates tape and reel packaging when sourcing this specific variant. Confirm the 'U' designation corresponds to the 8-pin 118-mil µSOP package rather than the standard SOIC. Ensure compatibility with existing 2-wire bus architectures before integration.

Selection Notes

Select the DS1050U-001+T specifically for applications requiring the space-saving 118-mil µSOP footprint. Choose this part over the Z-series if board real estate is constrained. Verify that the required PWM frequency matches the 1kHz specification inherent to the '-001' suffix.

Part Context

This component belongs to the DS1050 family of 5-bit programmable PWMs. The 'U' suffix distinguishes it as the version packaged in the compact 8-pin 118-mil µSOP format, whereas the 'Z' suffix denotes the standard 150-mil SOIC package. The '+T' suffix typically specifies tape and reel delivery.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.