ssl21081 NXP Semiconductors, ssl21081 Datasheet
ssl21081
Manufacturer Part Number
ssl21081
Description
Drivers For Led Lighting
Manufacturer
NXP Semiconductors
Datasheet
1.SSL21081.pdf
(25 pages)
Available stocks
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Price
Part Number:
ssl21081T
Manufacturer:
NXP/恩智浦
Quantity:
20 000
Part Number:
ssl21081T/1+118
Manufacturer:
NXP/恩智浦
Quantity:
20 000
1. General description
2. Features and benefits
The SSL2108X is a range of high-voltage Integrated Circuits (ICs), intended to drive
non-dimmable retrofit LED lamps in general lighting applications.
The main benefits of the product family are:
The product family is made of ICs with a range of internal HV switches for easy power
scaling.
The ICs work as boundary conduction mode buck converters. The IC range has been
designed to start up directly from the HV supply by an internal high-voltage current
source. Followed by the dV/dt supply using capacitive coupling from the drain, or any
other auxiliary supply. This functionality provides full flexibility in the application design.
The supply current consumed by the IC is 1 mA, an internal clamp limits the supply
voltage.
The ICs provide accurate output current control with greater than 5 % LED current
accuracy. The ICs can be operated using Pulse-Width Modulation (PWM) dimming and
has many protection features including easy LED temperature feedback.
Remark: All voltages unless otherwise specified are in V (AC).
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SSL2108X
Drivers for LED lighting
Rev. 1 — 9 September 2011
LED driver IC family driving strings of LEDs from a rectified mains supply
High-efficiency switch mode buck driver product family:
Controller with power-efficient boundary conduction mode of operation with:
Direct PWM dimming possible
Fast transient response through cycle-by-cycle current control:
Small Printed-Circuit Board (PCB) footprint, and compact solution
High efficiency (up to 95 %)
Ease of integration
Low electronic Bill Of Material (BOM)
Drivers with integrated 300 V or 600 V power switches
No reverse recovery losses in freewheel diode
Zero Current Switching (ZCS) for turn-on of switch
Zero voltage or valley switching for turn-on of switch
Minimal required inductance value and size
Negligible AC mains ripple at LED current and minimal total capacitor value
No over or undershoots in the LED current
Preliminary data sheet
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