SSL152x family

General description

The SSL152x family is a Switched Mode Power Supply (SMPS) controller IC that operates directly from the rectified universal mains. It is implemented in the high-voltage EZ-HV SOI process, combined with a low-voltage BiCMOS process. The device includes a high-voltage power switch and a circuit for start-up directly from the rectified mains voltage.

A dedicated circuit for valley switching is built in, which makes a very efficient slim-line electronic concept for solid state lighting applications possible.

The SSL152x can operate in applications with a power range of up to 15 W. For a power range between 15 W and 25 W the SSL1623PH is the best choice. For LED powers above 25 W the SSL1750 can be used.

In its most basic version of application, the SSL152x family acts as a voltage source. Here, no additional secondary electronics are required. A combined voltage and current source can be realized with minimum costs for external components. Implementation of the SSL152x family renders an efficient and low cost power supply system for mains LED drivers

Features

• Designed for mains LED drivers up to 15 W
• Integrated power switch:
  • SSL1522: 12 Ohm; 650 V
  • SSL1523: 6.5 Ohm; 650 V
• Operates from universal AC mains supplies (80 V to 276 V)
• Adjustable frequency for flexible design
• RC oscillator for load insensitive regulation loop constant
• Valley switching for minimum switch-on loss
• Frequency reduction at low power output makes low standby power possible (< 100 mW)
• Adjustable overcurrent protection
• Undervoltage protection
• Temperature protection
• Short circuit winding protection
• Simple application with both primary and secondary (opto) feedback
• Available in DIP8 and SO14 packages

Products/packages

Pricing/ordering/availability

Applications

• Retro fit LED lamps
• LED ballasts
• Contour lighting
• Channel letter lighting
• Commercial lighting, e.g. cabinet or freezer lights
• Other lighting applications

Block diagrams/pinning

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