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DS1050, DS1050X-001, DS1050X-005, DS1050X-010
5 Bit Programmable, Pulse-Width Modulator: 1kHz, 5kHz, 10kHz, and 25kHz
2-Wire Interface Gives Processor Control of PWM Functions
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Status
Active: In Production.
Description
The DS1050 is a programmable, 5-bit, pulse-width modulator featuring a 2-wire addressable controlled interface. The DS1050 operates from power supplies ranging from 2.7V up to 5.5V. The PWM output provides a signal that swings from 0V to VCC. The DS1050 requires a typical operating current of 50µA and a programmable shutdown supply current of 1µA.
Four standard PWM output frequencies are offered and include 1kHz, 5kHz, 10kHz, and 25kHz. The
2-wire addressable interface allows operation of multiple devices on a single 2-wire bus and provides compatibility with other Dallas Semiconductor 2-wire devices such as real-time clocks (RTCs), digital thermometers, and digital potentiometers.
The device is ideal for low-cost LCD contrast and/or brightness control, power supply voltage adjustment, and battery charging or current adjustment. The DS1050 is offered in standard integrated circuit packaging including the 8-pin (150-mil) SOIC and space-saving 8-pin (118-mil) µSOP.
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Data Sheet
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Key Features
- Single 5-bit, programmable, pulse-width modulator (PWM)
- Adjustable Duty Cycle: 0% to 100%
- 2.7V to 5.5V Operation
- Standard Frequency Values: 1kHz, 5kHz, 10kHz, and 25kHz
- 2-Wire Addressable Interface
- Packages: 8-Pin (150-mil) SOIC and 8-Pin (118-mil) µSOP
- Operating Temperature: -40°C to +85°C
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Applications/Uses
- Automated Test Equipment (ATE)
- Battery Chargers
- Building Energy Management (HVAC)
- LCD Displays and Panels
- Motor and Motion Control
- Power Supplies
- Sensors - Temperature
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Key Specifications:
| Programmable Pulse Width Modulators |
| Part Number |
fOUT
(kHz) |
Frequency Variation |
Program Range |
Interface |
VSUPPLY
(V) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| max w/pins |
See Notes |
| DS1050 |
25 |
±20% |
0 to 100% Duty Cycle |
2-Wire |
2.7 to 5.5 |
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15.6 |
$1.13 @1k |
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See All Programmable Pulse Width Modulators (1)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Block Diagram
More Information
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Information Index
Rev 1;
2001-07-27
This page last modified: 2009-10-26
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