SSL1623PH Datasheet, PDF (1/15 Pages) NXP Semiconductors – SMPS ICs for mains LED drivers

SSL1623PH
SMPS ICs for mains LED drivers
Rev. 01 — 15 September 2008
Product data sheet
1. General description
The SSL1623PH 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
(Easy High Voltage Silicon-On-Insulator) process, combined with a low voltage BiCMOS
(Bipolar Complementary Metal Oxide Semiconductor) 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 LED driver concept possible.
The SSL1623PH can operate in LED applications with a power range of up to 25 W. The
SSL152x family would be a better choice if power below 15 W is required.
In its most basic version of application the SSL1623PH 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
SSL1623PH renders an efficient and low cost LED power supply system.
2. Features
I Integrated power switch: 6.5 Ω and 650 V
I Operates from universal AC mains supplies, 80 V to 276 V
I Adjustable frequency for flexible design
I RC oscillator for load insensitive regulation loop constant
I Valley switching for minimum switch-on loss
I Adjustable overcurrent protection
I Undervoltage protection
I Temperature protection
I Short circuit winding protection
I Safe restart mode for system fault conditions
I Simple application with both primary and secondary (opto) feedback
I Available in 16-pin DIP package
3. Applications
I LED ballasts
I Contour lighting
I LED spotlights
I Channel letter lighting
I Down lighting