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Product Detailed Parameters
- Description：IC LED DRIVER OFFL SWITCHER 8DIP
- Series：-
- Mfr：Sanken Electric USA Inc.
- Package：Tube
- Type：AC DC Offline Switcher
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：-
- Voltage - Supply (Max)：20V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：-
- Applications：-
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm), 7 Leads
- Supplier Device Package：8-DIP
- Grade：-
- Qualification：-
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Overview
The LC5521D is a single-stage power factor corrected off-line switching LED driver IC from Sanken Electric. Designed for non-isolated LED driver applications using commercial power supplies, it provides constant output current control. The device features an internal switch and supports PWM dimming. It operates within a supply voltage range of 25V to 400V and switches at a frequency of 200kHz. The maximum output current is 800mA. It is housed in an 8-DIP package with 7 leads and functions within a temperature range of -40°C to 105°C.
Feature Summary
- Integrates power factor correction and constant current control in a single stage
- Includes an internal high-voltage switch for simplified circuit design
- Supports PWM dimming for brightness adjustment
- Designed for non-isolated AC-DC offline switching applications
Applications
- Non-isolated LED lighting systems
- Commercial power supply driven LED drivers
- Power factor correction circuits
- Harmonics reduction applications
Procurement Notes
Verify component status as the LC5521D is listed as obsolete or end-of-life by the manufacturer. Confirm availability through authorized distributors or secondary markets if sourcing for production. Ensure compatibility with existing PCB footprints and thermal management requirements before procurement.
Selection Notes
Select this component for designs requiring integrated PFC and constant current regulation without isolation. Consider the 800mA output limit and 400V max supply voltage when defining load parameters. Verify that the 8-DIP package fits the mechanical constraints and that PWM dimming interfaces are supported by the control system.
Part Context
The LC5521D belongs to the LC5500 series of hybrid ICs from Sanken Electric. These components are specialized for AC-DC conversion tasks where size and efficiency are critical. The series targets consumer and commercial electronics requiring compliant power factors and stable LED current regulation.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. As the part is obsolete, engineering teams must evaluate alternative single-stage PFC LED drivers with similar pinouts and electrical characteristics.
