DS1050Z-10/T&R

Overview

The DS1050Z-10/T&R is a programmable, 5-bit pulse-width modulator (PWM) manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single power supply 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 communication. Typical active supply current is 50µA, with a shutdown current of 1µA. It is housed in an 8-pin SOIC package and supports 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 frequency options including 10kHz
• 2-Wire addressable serial interface compatible with standard and fast modes
• 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&R indicates tape and reel packaging when sourcing this component. Confirm the manufacturer designation as Analog Devices Inc./Maxim Integrated. Ensure the specific model matches the 10kHz frequency variant required for the application design.

Selection Notes

Select the DS1050Z-10/T&R when a fixed 10kHz PWM signal is required. The Z suffix denotes the industrial temperature range (-40°C to +85°C). Choose this part over other frequencies if the system timing specifically requires 10kHz operation rather than 1kHz, 5kHz, or 25kHz.

Part Context

This component belongs to the DS1050 family of 5-bit programmable pulse-width modulators. The 'Z' suffix specifies the industrial temperature grade, while the '-010' identifier confirms the 10kHz output frequency setting. The '/T&R' suffix denotes the specific tape and reel packaging format for automated assembly.

Replacement Considerations

Compatible substitutes within the same family include DS1050Z-001 (1kHz), DS1050Z-005 (5kHz), and DS1050Z-025 (25kHz). These parts share identical pinouts and interfaces but differ only in their fixed output frequencies.

FAQ

What is the resolution of the PWM duty cycle?

The DS1050Z-10/T&R offers 5-bit resolution, allowing duty cycle adjustments in steps of 3.125%.

How does the device handle shutdown mode?

The device can be placed in a low-current shutdown state drawing ≤1µA via the serial interface. The output enters a high-impedance state during this mode.

Can multiple DS1050 devices operate on the same bus?

Yes, up to eight devices can be uniquely addressed and controlled on a single 2-wire serial bus using the A0, A1, and A2 address pins.