PT4121E 60V Step-down High Brightness LED Controller
■The PT4121E is a high efficiency step-down controller. It is designed to operate in continuous conduction mode and drive single or multiple series connected LED efficiently from a voltage source higher than the total LED chain voltage. It operates with a wide input voltage from 6V to 60V and provides an externally adjustable output current.
■The PT4121E includes a high-side output current sense circuit, which uses an external resistor to set the nominal average output current, and a dedicated DIM input accepts either a DC voltage or PWM dimming.
■The PT4121E is available in SOT23-6 or SOP-8 packages.
●FEATURES
■Less external components
■Wide input voltage range: 6V to 60V
■High efficiency (up to 97%)
■Single pin on/off and brightness control using DC Voltage or PWM
■Up to 1MHz switching frequency
■Adjustable Constant LED Current
■Typical 3% output current accuracy
■High-Side Current Sense
■Hysteretic Control: No need compensation
■Inherent RCS open protection
■Inherent open-circuit LED protection
■Inherent short-circuit LED protection
■Over Temperature Protection
|
Step-down High Brightness LED Controller 、 high efficiency step-down controller |
|
|
[ Low voltage halogen replacement LEDs ][ Automotive lighting ][ Decorative lighting ][ Low voltage industrial lighting ][ LED back-up lighting ][ Signs/Emergency lighting ][ SELV lighting ][ LCD TV backlighting ] |
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
SOT23-6;SOP-8 |
|
|
English Chinese Chinese and English Japanese |
|
|
2022/2/15 |
|
|
Rev: EN 1.4 |
|
|
|
|
|
927 KB |
- +1 Like
- Add to Favorites
Recommend
- The Difference between LiMnO2 Button Battery CR Series and CR/PH Series
- Omnergy brand CR Series Button Batteries Have Low Self-discharge Characteristics and Can Be Stored for A Long Time to Reduce Power Loss
- Standex-meder Instrumentation Grade Relays Offer Unparalleled Switching Technology Well Suited for Instrumentation Applications
- LiMnO2 Lithium Batteries Powers the CGM Dynamic Blood Glucose meter
- Maxell Develops Cylindrical Type Lithium Manganese Dioxide Battery With Industry‘s Highest Capacity Suitable for IoT Devices
- Lijia CR123A Lithium Manganese Cylindrical Batteries with the Single Battery Rated Voltage of 3V
- Chinese top 3 OEM manufacturer of lithium coin cells/button batteries Power Glory participated in the 24th Enlit Europe 2023
- Is the Button Battery a Lithium Battery or a Dry Battery?
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
