 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
RT4503 Datasheet(PDF) 1 Page - Richtek Technology Corporation |
|
|
|||||||||||||||||||||||||||||
RT4503 Datasheet(HTML) 1 Page - Richtek Technology Corporation |
|
|
1 / 13 page  RT4503/A ® DS4503/A-03 June 2015 www.richtek.com 1 © Copyright 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Ordering Information Note : Richtek products are : RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. Simplified Application Circuit Applications Cellular Phones Digital Cameras Probable Instruments * : COMP pin for RT4503 only. Asynchronous Boost Converter for 10 WLEDs General Description The RT4503/A is a highly integrated LED driver IC capable of driving 10 WLEDs in series. It is composed of a current mode Boost converter integrated with a 36V/1.2A power switch. The RT4503/A supports a wide input voltage range from 2.5V to 5.5V and runs at a fixed frequency of 550kHz. The LED current is set via an external resistor and the feedback voltage is regulated to 200mV. For brightness dimming, the RT4503A supports 32 steps pulse dimming which determines the feedback reference voltage, and RT4503 support PWM dimming which determines the feedback reference voltage. Features 2.5V to 5.5V Input Voltage Range 36V Open LED Protection for 10 WLEDs Pulse Dimming Brightness Control 200mV Reference Voltage with ±±±±±2% Accuracy 550kHz Switching Frequency Built-In Soft-Start Over-Temperature Protection Internal Compensation Current Limit RT4503/A Package Type QW : WDFN-6L 2x2 (W-Type) Lead Plating System G : Green (Halogen Free and Pb Free) RT4503 : PWM Dimming RT4503A : Pulse Dimming LX FB GND RT4503/A VIN COMP* EN L VIN |
Similar Part No. - RT4503 |
|
Similar Description - RT4503 |
|
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
