SSL21084T/1,118 데이터 시트보기 (PDF) - NXP Semiconductors.

부품명

상세내역

제조사

SSL21084T/1,118

GreenChip drivers for LED lighting

NXP Semiconductors. 

SSL2108X

Drivers for LED lighting

Rev. 1 — 9 September 2011

Preliminary data sheet

1. General description

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:

• Small Printed-Circuit Board (PCB) footprint, and compact solution

• High efficiency (up to 95 %)

• Ease of integration

• Low electronic Bill Of Material (BOM)

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).

2. Features and benefits

 LED driver IC family driving strings of LEDs from a rectified mains supply

 High-efficiency switch mode buck driver product family:

 Drivers with integrated 300 V or 600 V power switches

 Controller with power-efficient boundary conduction mode of operation with:

 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

 Direct PWM dimming possible

 Fast transient response through cycle-by-cycle current control:

 Negligible AC mains ripple at LED current and minimal total capacitor value

 No over or undershoots in the LED current

Share Link: