DS1050P-5/T&R

Overview

The DS1050P-5/T&R is a single-channel, 5-bit programmable pulse-width modulator (PWM) from Analog Devices/Maxim Integrated. 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 5kHz with adjustable duty cycles ranging from 0% to 96.88% in 3.125% steps, or 100% via a dedicated command. It features a 2-wire addressable serial interface for communication and control.

Feature Summary

• Single-channel 5-bit PWM with 5kHz fixed output frequency
• Adjustable duty cycle from 0% to 96.88% (3.125% resolution) or 100%
• 2-Wire addressable serial interface supporting Standard (100kHz) and Fast (400kHz) modes
• 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 'P' suffix against official documentation, as the provided datasheet lists 'Z' (SOIC) and 'U' (µSOP) packages. Confirm the '/T&R' suffix indicates tape-and-reel packaging. Ensure the 5kHz frequency variant matches system requirements.

Selection Notes

Select this component when a low-cost, single-output PWM generator is needed with I2C-compatible control. The 5kHz frequency is suitable for audio or display applications. Ensure the host controller supports the 2-wire protocol and can handle the required bus capacitance limits.

Part Context

The DS1050 series includes variants with 1kHz, 5kHz, 10kHz, and 25kHz frequencies. The 'P' designation typically refers to the PDIP package, though the source datasheet explicitly details SOIC and µSOP options. The 'DS1050Z-005' is the SOIC equivalent for the 5kHz frequency.

Replacement Considerations

Direct replacements include other DS1050 frequency variants (e.g., DS1050Z-001, DS1050Z-010) if frequency differs. No direct pin-compatible substitutes are listed in the provided data.