DS1050Z-025+

Overview

The DS1050Z-025+ 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 25kHz. The device includes a 2-wire addressable serial interface for communication. It provides adjustable duty cycles from 0% to 100% with 5-bit resolution. 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 fixed output frequency of 25kHz
• 2-Wire addressable serial interface supporting multiple devices on a single bus
• Low power consumption with typical active current of 50µA and shutdown current ≤1µA

Applications

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

Procurement Notes

Verify the specific suffix Z indicates the 8-pin 150-mil SOIC package variant. Confirm RoHS compliance status through official manufacturer documentation. Ensure the master controller supports the required 2-wire protocol timing for standard or fast mode operation as specified in the datasheet.

Selection Notes

Select this model when a fixed 25kHz PWM frequency is required. Choose the DS1050Z series over the DS1050U series if the 150-mil SOIC package is preferred over the space-saving µSOP. Verify that the system allows for hardware address selection via pins A0, A1, and A2 to support up to eight devices on the same bus.

Part Context

The DS1050Z-025+ belongs to the DS1050 family of 5-bit programmable pulse-width modulators. Other variants in this series include models with different fixed frequencies such as 1kHz, 5kHz, and 10kHz. The 'Z' suffix specifically denotes the standard 8-pin 150-mil SOIC packaging option available for this component line.

Replacement Considerations

Direct substitutes within the same family include DS1050Z-001+, DS1050Z-005+, and DS1050Z-010+ for different frequency requirements. For alternative packaging, the DS1050U-025+ offers the same electrical specifications in an 8-pin µSOP package.