SSL21101T

Accurate non-dimmable LED driver IC


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The SSTL21101T is a Switch Mode Power Supply (SMPS) driver IC. It is designed to drive LED devices typically in flyback configurations. The device includes a high-voltage power switch and a circuit enabling start-up directly from the rectified mains voltage. It has accurate control of the output current.

Features and benefits

  • Small PCB footprint and compact solution with a small form factor
  • Primary side sensing (no optocoupler required)
  • True current source behavior
  • Efficiency up to 90 % depending on the application
  • High Power Factor (PF; > 0.95)
  • Low total Harmonic Distortion Mode (THD down to 20 %)
  • External temperature protection with built-in Negative Temperature Coefficient
  • Internal supply voltage generation enabling startup from the rect. mains voltage
  • Compatible with wall switches with built-in indication light during standby

Applications

  • SSL, retrofit lamps
  • LED modules, mains AC/DC converter
  • LED strings
All information on this product information page is subject to the subsequent disclaimers:
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Parametric search

Show functional diagram

SSL21101T Block diagram
SSL21101T Block diagram

Demo boards

SSL21101DB01SSL21101DB01

SSL21101 230V 8W Flyback retrofit SSL lamp reference design - Low THD

SSL21101DB02SSL21101DB02

SSL21101 120V 8W Flyback retrofit SSL lamp reference design - Low Ripple

SSL21101DB03SSL21101DB03

SSL21101 120V 8W Flyback retrofit SSL lamp reference design - Low THD

SSL21101DB04SSL21101DB04

SSL21101 230V 8W Flyback retrofit SSL lamp reference design - Low Ripple


Parametrics of this product

SymbolParameterConditionsMinTyp/NomMaxUnit
fsw(max)maximum oscillator frequencyDCM mode;; main = 50 Hz;; mode = 50 kHz49.751.252.7kHz
fsw(max)maximum oscillator frequencyDCM mode;; main = 50 Hz;; mode = 100 kHz99.4102.4105.4kHz
fsw(max)maximum oscillator frequencyDCM mode;; main = 60 Hz;; mode = 50 kHz59.761.463.2kHz
fsw(max)maximum oscillator frequencyDCM mode;; main = 60 Hz;; mode = 100 kHz119.4122.9126.4kHz
Plamplamp power15W
RDSondrain-source on-state resistanceTj = 25 °C6.8Ω
RDSondrain-source on-state resistanceTj = 125 °C9.5Ω
Tjjunction temperature-40150°C
VDRAINvoltage on pin DRAIN-0.4700V
VCCsupply voltagefunctional132225.5V
Vmainsmains voltage100230V

Package

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
SSL21101T/1SSL21101T/1,5189352 949 02518Volume productionSOT108-1
(SO14) 		Reel Dry Pack, SMD, 13"Standard Marking

Pinning information

PinSymbolDescriptionSimplified outlineGraphic symbol
1VCCsupply voltagePin configurationSOT108-1
2RMAINcurrent source proportionally equivalent of Vmain
3GNDground
4VDD(INTREGD)internal regulated supply
5MODEpower factor/THD and maximum switching frequency control input
6NTCLED temperature protection input
7ILEDREFLED current control input
8GNDground
9DNCdo not connect
10SOURCEsource of internal power switch
11GNDground
12GNDground
13GNDground
14DRAINdrain of internal power switch

Outline drawing

Package VersionPackage NamePackage DescriptionReference CodesIssue Date
SOT108-1SO14plastic small outline package; 14 leads; body width 3.9 mmMS-012 (JEDEC); 076E06 (IEC); 2003-02-19

Related documents

Reflow soldering

Selection guide

Wave soldering

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
SSL21101T/1SSL21101T/1,518SSL21101T/1Always Pb-free3
Quality and reliability disclaimer

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NXP Semiconductors is providing this data for your convenience only. Please note however that NO WARRANTY, REPRESENTATION, GUARANTEE OR LEGALLY BINDING PRODUCT DESCRIPTION is provided by publishing this informational data, nor does NXP Semiconductors acknowledge or accept any liability related thereto. The documentation and data on NXP Semiconductors products can be found in the data sheets as officially published by NXP Semiconductors. For all purchase of products from NXP Semiconductors the NXP Semiconductors' General Terms and Conditions of Commercial Sale will apply.

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Documentation for this product

File nameTitleTypeFormatDate
SSL21101TGreenChip drivers for LED lightingData sheetpdf2012-06-07
AN11100SSL21101T flexible focus flyback LED driver applicationApplication notepdf2012-10-25
75017279NXP non-dimmable flyback driver for LED lighting SSL21101Leafletpdf2012-05-08
001aan129GreenChip logoLogogif2012-04-20
SSL21101T_Datasheet_Chinese_DS_CNSSL2110XT 专门应用于驱动反激式结构的LED 设备开关电源（SMPS）驱动芯片产品数据手册Other typepdf2012-08-01
UM10476SSL21101T LED driver demo boardUser manualpdf2012-08-17

Ordering & availability

Type numberOrdering code (12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
SSL21101T/19352 949 02518SSL21101T/1,518       

Sample

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If you do not have a direct account with NXP our network of global and regional distributors is available and equipped to support you with NXP samples. As a NXP customer you also have the option to order samples via our sales organisation.

Demo boards

SSL21101DB01
SSL21101DB01

SSL21101 230V 8W Flyback retrofit SSL lamp reference design - Low THD

SSL21101DB02
SSL21101DB02

SSL21101 120V 8W Flyback retrofit SSL lamp reference design - Low Ripple

SSL21101DB03
SSL21101DB03

SSL21101 120V 8W Flyback retrofit SSL lamp reference design - Low THD

SSL21101DB04
SSL21101DB04

SSL21101 230V 8W Flyback retrofit SSL lamp reference design - Low Ripple

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