IC reference design search
IC manufacturers NXP

IC manufacturers (103)

reference designSSL5271T | Demoboard SSL5271DB1396

NXP SSL5271T | Demoboard SSL5271DB1396

Mains dimmable buck-boost LED driver IC 10 Ohm/700 V

Overview

TopologyFlyback Converter
Output 150 V / 1 A
IC revision1.02

Description

The SSL5257TE is a highly integrated, high-precision buck-boost controller with aninternal MOSFET. It is intended to drive low-cost compact dimmable LED lamps up to10 W. The SSL5257TE is designed to achieve high power factor, phase-dimmableapplications.The SSL5257TE operates in Boundary Conduction Mode (BCM) with on-time control. Itregulates a constant output current over line and load variations. The wide switchingfrequency range makes it possible to choose an inductor, which enables the optimizationof inductor size, efficiency and EMI.The SSL5257TE can start up and operate in switching mode directly from the rectifiedmains. To provide a low-cost driver design, an off-the-shelf inductor can be used, whichprovides flexibility in application design.

Features

 Integrated MOSFET (10 /700 V) Supports most available dimming solutions Deep dimming level Flicker-free dimming Low component count ensuring a compact solution and small, single layerPrinted-Circuit Board (PCB) footprint Excellent line regulation and load regulation and good LED output current accuracy Hotaru current control Internal thermal foldback Efficient BCM operation with: Minimal recovery losses in freewheel diode Zero Current Switching (ZCS) and Valley switching for turn-on of switch Minimal inductance value and size required High efficiency (up to 90 %) Ultra low IC current during operation (< 200 A) Auto-recovery protections: UnderVoltage LockOut (UVLO) Cycle-by-cycle OverCurrent Protection (OCP) Internal OverTemperature Protection (OTP) Output OverVoltage Protection (OVP) Output Short Protection (OSP) Extended IC lifetime

Typical applications

  • The SSL5257TE is intended for low-cost, non-isolated dimmable lighting applications

More information

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
IR(A)
L(mH)
RDC max.(mΩ)
VR(V (AC))
VT(V (AC))
Material
L(mm)
W(mm)
H(mm)
Mount
SamplesAvailability & Sample
744824220
SPECWE-CMB Common Mode Power Line Choke, 2 A, 20 mH
Simu­lation
Availability
–
Downloads11 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CMB Common Mode Power Line Choke
Rated Current2 A
Inductance20 mH
DC Resistance220 mΩ
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialMnZn 
Length27.5 mm
Width18.5 mm
Height33 mm
MountTHT 
–Check availability
744841247
SPECWE-CMB NiZn Common Mode Power Line Choke, 2 A, 0.047 mH
Simu­lation
Availability
–
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CMB NiZn Common Mode Power Line Choke
Rated Current2 A
Inductance0.047 mH
DC Resistance40 mΩ
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialNiZn 
Length16 mm
Width7.5 mm
Height17.5 mm
MountTHT 
–Check availability
750312186
SPECInductor, –, 0.696 mH
Simu­lation–
Availability
–
Downloads–
Status Activei| Production is active. Expected lifetime: >10 years.
Product series Inductor
–
Inductance0.696 mH
–
–
–
–
Length20.83 mm
Width24.64 mm
Height11.43 mm
MountTHT 
–Check availability
750314464
SPECFlyback Transformer - WE-FB, –, –
Simu­lation–
Availability
–
Downloads–
Status Activei| Production is active. Expected lifetime: >10 years.
Product series Flyback Transformer - WE-FB
–
–
–
–
–
–
–
–
–
–
–Check availability