DS1050Z-005+T&R

Overview

The DS1050Z-005+T&R is a programmable, 5-bit pulse-width modulator (PWM) from the DS1050 series. It features a standard output frequency of 5kHz and operates on a single power supply ranging from 2.7V to 5.5V. The device includes a 2-wire addressable serial interface for control and supports up to eight unique addresses via hardware pins A0, A1, and A2. It draws a typical active supply current of 50µA and offers adjustable duty cycles from 0% to 96.88%, with an additional command for 100% full-on operation. The component is housed in an 8-pin SOIC package.

Feature Summary

• Single 5-bit programmable PWM with 3.125% resolution steps
• Standard 5kHz output frequency with ±20% tolerance
• 2-Wire addressable serial interface supporting Standard (100kHz) and Fast (400kHz) modes
• Low power consumption: 50µA active current, 1µA standby current

Applications

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

Procurement Notes

Verify the T&R suffix indicates tape and reel packaging for automated surface-mount assembly. Confirm the Z suffix denotes RoHS compliance. Ensure the master controller supports the required 2-wire protocol timing constraints for both standard and fast modes.

Selection Notes

Select this part for applications requiring a fixed 5kHz PWM frequency. Choose alternative suffixes (001, 010, 025) if different standard frequencies are needed. Consider the DS1050U variant for space-constrained designs using the µSOP package instead of the standard SOIC.

Part Context

This component belongs to the DS1050 family of programmable PWMs manufactured by Analog Devices Inc./Maxim Integrated. The family provides standardized frequency options to simplify design integration for display and power management tasks without requiring external oscillators.

Replacement Considerations

Direct replacements within the same family include DS1050Z-001+T&R (1kHz), DS1050Z-010+T&R (10kHz), and DS1050Z-025+T&R (25kHz). Package alternatives include the DS1050U series in µSOP format.