PWM Driver controls electromechanical and thermal devices.
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Press Release Summary:
DMOS 1.5 A driver Model DRV104 operates from single 8-32 V supply range. It can provide strong initial solenoid closure and automatically switch to soft hold mode for power savings. Duty cycle can be controlled by resistor, analog voltage, or digital-to-analog converter. Status flag pin indicates thermal shutdown or over-current conditions. Separate supply pins for control circuitry and driver transistor allow device to operate on separate supplies.
Original Press Release:
TI Introduces 1.5A PWM High-Side Driver for Electromechanical and Thermal Devices
TUCSON, Ariz. (Sept. 24, 2003) - Texas Instruments (TI) Incorporated (NYSE:TXN) today announced a high-side, DMOS pulse-width modulated (PWM) driver from the company's Burr-Brown product line. This integrated driver is optimized for controlling electromechanical and thermal devices such as valves, solenoids, relays, actuators, heaters, coolers and lamps. As a result of PWM operation, the DRV104 conserves power and reduces heat rise, resulting in higher reliability. (See www.ti.com/sc03207).
PWM operation also allows precise control of the power delivered at designated levels and intervals to the system. The DRV104 operates over a single +8V to +32V supply range.
"The rugged DRV104 offers customers a complete, fully-tested solution for high-side switching with the benefit of power conservation and increased reliability - all for less than it would cost a designer to build their own solution with an oscillator, PWM, control, drive, power switch, thermal/current protection and diagnostic flag," said John Brown, strategic marketing engineer of TI's high-performance linear products.
The DRV104 can be set to provide a strong initial solenoid closure, automatically switching to a soft hold mode for power savings. The duty cycle can be controlled by a resistor, analog voltage, or a digital-to-analog converter for versatility. A status flag pin indicates thermal shutdown or over-current conditions. Timing and internal oscillator frequency are externally adjustable. Separate supply pins for the control circuitry and driver transistor allow this device to operate on separate supplies, such as +5V to +24V.
Available Today
The DRV104 is available in a 14-lead HSOP PowerPAD(TM) package, and is available now from TI and its authorized distributors. The device is priced from $1.51 in 1,000 piece quantities (suggested resale pricing).
Texas Instruments Incorporated provides innovative DSP and analog technologies to meet our customers' real world signal processing requirements. In addition to Semiconductor, the company's businesses include Sensors & Controls, and Educational & Productivity Solutions. TI is headquartered in Dallas, Texas, and has manufacturing, design or sales operations in more than 25 countries.
Texas Instruments is traded on the New York Stock Exchange under the symbol TXN. More information is located on the World Wide Web at www.ti.com.
