Diodes announced High-Voltage Linear Constant Current LED Driver
Plano, Texas - May 10, 2018 - Diodes Incorporated (Nasdaq: DIOD), a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete, logic, analog and mixed-signal semiconductor markets, today announced the AL5890. This linear constant-current regulator provides simple and more cost-effective solutions for driving LED strings from an offline or DC power supply.
Available in a range of packages, the small form-factor of the AL5890 makes it ideal for any LED application where a lower BoM cost and sizes are important. The fully integrated design includes a power transistor and it is available in 10mA, 15mA, 20mA, 30mA, and 40mA variants. A single device or multiple devices in parallel can be used to source or sink enough current for long LED strings, with an overall accuracy of less than ±2.0mA (typ), working over a wide ambient temperature range of -40°C to +105°C.
Its simple two-pin PowerDI®123 design means it can be inserted directly in the LED string in low-side AC or DC, or high-side AC or DC linear configurations without any external resistors. It is designed to tolerate DC voltages of up to 400V and can be used in off-line applications up to 230VAC. Thermal foldback protection is included, which prevents system failure by reducing the current in the event of high operating temperatures. As well as lowering the overall BoM, it also provides an effective solution to tackling EMI without the need for additional switching inductors.
Packaging options include PowerDI123, SOT89-3L, and TO252-3L to help address heat dissipation in various LED lighting applications including LED lamps, commercial LED fixtures, emergency lighting, signage and downlights, as well as decorative and architectural lighting. Further information is available at www.diodes.com.
■ Integrated power transistor with output current up to 40 mA
Small form factor to minimize design space and save cost
■ 400V Operating Voltage
Supports both 120Vac and 230 Vac system
■ Available in PowerDI123, SOT89 and TO252 package
Available in compact and thermal packages for size-constrainedapplications
■ LED Current Tolerance Over Wide Temperature Range < ±2.0mA(typ.)
Good LED current accuracy 5% @40mA
■ Thermal Fold-Back Protection
Automatically reduces LED current to prevent system from overheating
・Commercial LED Lighting Fixtures
・Signage, Downlights, Decorative and Architectural Lighting
About Diodes Incorporated
Diodes Incorporated (Nasdaq: DIOD), a Standard and Poor's SmallCap 600 and Russell 3000 Index company, is a leading global manufacturer and supplier of highquality application specific standard products within the broad discrete, logic and analog semiconductor markets. Diodes serves the consumer electronics, computing, communications, industrial, and automotive markets. Diodes' products include diodes, rectifiers, transistors, MOSFETs, protection devices, functional specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors; power management devices, including LED drivers, AC-DC converters and controllers, DCDC 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. Design, marketing, and engineering centers are located in Plano; San Jose, California; Taipei, Taiwan; Manchester, England; and Neuhaus, Germany. Diodes’ wafer fabrication facilities are located in Kansas City, Missouri and Manchester, with four manufacturing facilities located in Shanghai, China, and two joint venture facilities located in Chengdu, China, as well as manufacturing facilities located in Neuhaus and Taipei. Additional engineering, sales, warehouse, and logistics offices are located in Fort Worth, Texas; Taipei; Hong Kong; Manchester; Shanghai; Shenzhen, China; Seongnam-si, South Korea; Suwon, South Korea; Tokyo, Japan; and Munich, Germany, with support offices throughout the world. For further information, including SEC filings, visit Diodes’ website at http://www.diodes.com.