SSL4120T/1,518 데이터 시트보기 (PDF) - NXP Semiconductors.
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SSL4120T/1,518 Datasheet PDF : 48 Pages
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NXP Semiconductors
SSL4120
Resonant power supply controller IC with PFC for LED lighting
2. Features and benefits
2.1 General features
Integrated PFC and HBC controllers
Universal mains supply operation from 85 V to 305 V (AC)
High level of integration resulting in a low external component count and a cost
effective design
Enable input to enable only the PFC or both the PFC and HBC controllers
On-chip high-voltage start-up source
Stand-alone operation or IC supplied from external DC source
2.2 PFC controller features
Boundary mode operation with on-time control
Valley/zero-voltage switching for minimum switching losses
Frequency limiting to reduce switching losses
Accurate boost voltage regulation
Burst mode switching with soft-start and soft-stop
2.3 HBC controller features
Integrated high-voltage level shifter
Adjustable minimum and maximum frequency
Maximum 500 kHz half-bridge switching frequency
Adaptive non-overlap time
Burst mode switching
2.4 Protection features
Safe restart mode for system fault conditions
General latched protection input for output overvoltage protection or external
temperature protection
Protection timer for time-out and restart
Overtemperature protection
Soft (re)start for both controllers
Undervoltage protection for mains (brownout), boost, IC supply and output voltage
Overcurrent regulation and protection for both controllers
Accurate overvoltage protection for the boost voltage
Capacitive mode protection for the HBC controller
3. Applications
The IC is used in all LED lighting applications that require very efficient, low Total
Harmonic Distortion (THD), high Power Factor (PF) and a universal mains input voltage.
The SSL4120 provides a cost-effective power supply solution between 25 W and 400 W.
SSL4120
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2.1 — 18 February 2014
© NXP B.V. 2014. All rights reserved.
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