DS1050Z-010+T&R

Overview

The DS1050Z-010+T&R is a programmable, 5-bit pulse-width modulator (PWM) from Analog Devices/Maxim Integrated. It operates on a single supply voltage ranging from 2.7V to 5.5V and features a standard output frequency of 10kHz. The device includes a 2-wire addressable serial interface for control, allowing duty cycle adjustment from 0% to 100%. It draws a typical active supply current of 50µA and supports a low-current shutdown mode with standby current below 1µA. The component is housed in an 8-pin SOIC package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Single 5-bit programmable PWM with adjustable duty cycle from 0% to 100%
• Standard 10kHz output frequency with ±20% tolerance
• 2-Wire addressable serial interface supporting Standard (100kHz) and Fast (400kHz) modes
• Low power consumption: 50µA active current and <1µA standby current

Applications

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

Procurement Notes

Verify the specific suffix '+T&R' indicates tape-and-reel packaging when sourcing this part number. Confirm the 'Z' designation aligns with RoHS compliance requirements for the target assembly process. Ensure the master controller supports the required 2-wire protocol timing constraints for both standard and fast modes.

Selection Notes

Select the DS1050Z-010 variant specifically for applications requiring a fixed 10kHz PWM output frequency. Other variants in the series offer 1kHz, 5kHz, or 25kHz outputs. Consider the 8-pin SOIC package dimensions if board space is constrained relative to the µSOP option. Verify that the system voltage remains within the 2.7V to 5.5V operational range.

Part Context

This component belongs to the DS1050 family of programmable pulse-width modulators. The 'Z' suffix typically denotes lead-free/RoHS-compliant versions manufactured by Maxim Integrated, now part of Analog Devices. The '-010' identifier specifies the internal oscillator frequency setting of 10kHz, distinguishing it from other frequency-specific models in the same product line.

Replacement Considerations

Direct functional replacements include other DS1050Z variants with different frequency settings (DS1050Z-001, DS1050Z-005, DS1050Z-025) if the frequency requirement can be adjusted. Cross-model substitution requires verifying pin compatibility and software register mapping for the 2-wire interface.