ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC LED DRIVER OFFL 420MA 8SOP
- Series：-
- Mfr：Fremont Micro Devices Ltd
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：AC DC Offline Switcher
- Topology：Flyback
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：9V
- Voltage - Supply (Max)：20V
- Voltage - Output：-
- Current - Output / Channel：420mA
- Frequency：5kHz
- Dimming：-
- Applications：Lighting
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOP
- Grade：-
- Qualification：-
Download product information
Overview
The FT833S11-RT is a high precision primary-side regulation (PSR) constant current LED driver designed for offline AC/DC flyback applications. It integrates a 650V power MOSFET and supports dimming capabilities. The device delivers a regulated output current of 420mA with an 8-SOP package. Key protection features include current limiting, open circuit detection, over-temperature shutdown, and over-voltage protection.
Feature Summary
- Integrates a 650V power MOSFET to simplify design
- Provides high precision primary-side feedback regulation
- Supports dimming functionality for lighting control
Applications
- Offline AC/DC LED lighting systems
- Flyback converter designs requiring constant current output
- General illumination applications utilizing PSR topology
Procurement Notes
Verify the specific suffix 'RT' corresponds to the required tape and reel packaging configuration. Confirm that the 8-SOP package dimensions align with your PCB footprint requirements. Ensure the 650V MOSFET rating meets the voltage stress conditions of your target transformer design. Validate that the 420mA output current matches the LED string specifications.
Selection Notes
Select this component when a compact solution integrating the power switch is required. It is suitable for designs eliminating secondary side feedback components like optocouplers. Consider the thermal performance within the 8-SOP package for your expected load conditions. Verify compatibility with your desired dimming protocol if applicable.
Part Context
This part belongs to the FT833xxx series from Fremont Micro Devices, which focuses on high-efficiency power management solutions. The series is characterized by primary-side regulation techniques that reduce component count and improve reliability in LED driver applications compared to traditional secondary-side controlled designs.
Replacement Considerations
Check for direct pin-to-pin compatible alternatives within the same manufacturer's portfolio. Verify that any substitute maintains the 650V breakdown voltage and similar constant current accuracy. Ensure the replacement package matches the 8-SOP form factor for board compatibility.
