HomedatasheetIR21571

IR21571 Datasheet

Gate Drivers
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Description

The IR21571 is a fully integrated, fully protected 600V ballast control IC designed to drive virtually all types of rapid start fluorescent lamp ballasts. Externally programmable features such as preheat time & frequency, ignition ramp characteristics,and running mode operating frequency provide a high degree of flexibility for the ballast design engineer. Comprehensive protection features such as protection from failure of a lamp to strike, filament failures, low dc bus conditions, thermal overload, or lamp failure during normal operation, as well as an automatic restart function, have been included in the design. The heart of this control IC is a variable frequency oscillator with externally programmable deadtime. Precise control of a 50% duty cycle is accomplished using a T-flip-flop. The IR21571 is available in both 16 pin DIP and 16 pin narrow body SOIC packages. IR21571 Features • Programmable preheat time & frequency• Programmable ignition ramp• Protection from failure-to-strike• Lamp filament sensing & protection• Protection from operation below resonance - 0.2V CS threshold sync’d to falling edge on LO• Protection from low-line condition• Automatic restart for lamp exchange
Features

Parameters

[{"Name":"Product ","Value":"Photo-Flash Drivers "},{"Name":"Rise Time ","Value":"85 ns"},{"Name":"Fall Time","Value":"45 ns"},{"Name":"Supply Voltage - Max ","Value":"25 V"},{"Name":"Supply Voltage - Min","Value":"10 V "},{"Name":"Supply Current","Value":"20 mA "},{"Name":"Maximum Power Dissipation ","Value":"1 W "},{"Name":"Mounting Style ","Value":"SMD/SMT"},{"Name":"Package / Case ","Value":"SOIC-16"},{"Name":"Type","Value":"Ballast Control IC "}]

Manufacturer information

DIODES INCORPORATED

Diodes Incorporated is a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete, logic, analog and mixed-signal semiconductor markets. Diodes serves the consumer electronics, computing, communications, industrial, and automotive markets.
Diodes’ products include diodes, rectifiers, transistors, MOSFETs, protection devices, function-specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors, power management devices, including LED drivers, AC-DC converters and controllers, DC-DC switching and linear voltage regulators, and voltage references along with special function devices, such as USB power switches, load switches, voltage supervisors, and motor controllers.
Diodes’ corporate headquarters and Americas’ sales office are located in Plano, Texas and Milpitas, California. Design, marketing, and engineering centers are located in Plano; Milpitas; Taipei, Taiwan; Taoyuan City, Taiwan; Zhubei City, Taiwan; Manchester, England; and Neuhaus, Germany. Diodes’ wafer fabrication facilities are located in Manchester and Shanghai, China. Diodes has assembly and test facilities located in Shanghai, Jinan, Chengdu, and Yangzhou, China, as well as in Hong Kong, Neuhaus and Taipei. Additional engineering, sales, warehouse, and logistics offices are located in Taipei; Hong Kong; Manchester; Shanghai; Shenzhen, China; Seongnam-si, South Korea; and Munich, Germany, with support offices throughout the world.

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