OSTT2190150 Datasheet

Terminal Blocks - Wire to Board


OSTT2190150 The evaluation module uses a two stage approach to controlling the output current. The first stage is a transition mode PFC circuit. This ensures the design meets the harmonic current or power factor requirements set out by various standards, such as EN61000-3-2. The PFC circuit converts the AC input to a regulated DC voltage. This DC voltage can be configured in one of two ways. The default configuration of the module is that of a boost follower type PFC. The boost follower PFC is where the PFC regulated output DC voltage tracks the AC input peak voltage. The second configuration requires removing some components and changing a resistor value see below for more details. This second configuration removes the tracking element of the PFC circuit. The PFC DC output voltage will then be regulated to a fixed value in the region of 396 VDC.The second stage also uses transition mode but is configured as a buck converter. It converts the PFC output voltage to a fixed constant current. This circuit is capable of supplying 0.9 A into a 100-W load. It also accepts PWM dimming inputs. Alternatively the user can use the PWM circuit on the module to see the dimming function. This module will work with most high brightness LED’s (HB-LED) that operate with 0.9 A and a total string voltage drop of between 55 V and 110 V. OSTT2190150 Features • 90 VRMS to 264 VRMS operation• Boost Follower or Fixed Output PFC Stage• PFC Disable• Output Current Disable• External or Internal PWM Dimming OSTT2190150 Applications • AC Input General Lighting Applications Using HB-LED’s• Industrial, Commercial and Residential Lighting Fixtures• Outdoor Lighting: Street, Roadway, Parking, Construction and Ornamental LED Lighting Fixtures


[{"Name":"Current ","Value":"10A"},{"Name":"Voltage","Value":"300V"},{"Name":"Wire Gauge","Value":"12-24 AWG"},{"Name":"Operating Temperature","Value":"-30°C ~ 105°C"},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information


Seiko Instruments Inc. Is a Japanese company which head office is located in 8, Nakase 1-chome, Mihama-ku, Chiba-shi, Chiba 261-8507, Japan . It’s business lines are: Watches Business Watches, Watch Movements Electronic Components Business Quartz crystals, Micro batteries, etc. Precision Mechatronics Business Inkjet printer heads, Hard disk components, Thermal printers, Compact precision components, Machine tools, FA, Musical instrument accessories, Radiation detection and measurement systems, etc.

Warm Hint

What HQEW.NET can offer here?
1. www.hqew.net/product-data provides numerous and various electronic part data-sheet and technology document here., if it can't be shown, Please feel free to ask us for it.
2. www.hqew.net/news provides the latest information of the semiconductor industry or the electronics industry for you.
3. www.hqew.net provides verified suppliers and numerous electronic components for your demand and business.
Any questions you can contact us by email cs@hqew.net.
Request for Datasheet

  • Part No     :
  • Your Email:
  • Content     :

related datasheet
Browse Alphabetically: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9
Contact Us


One to One Customer Service