SSL2129AT/1J Datasheet SSL2129AT/1J | P1-P3

1. General description

The SSL2129AT is a high-voltage Integrated Circuit (IC) for driving LED lamps in general

lighting applications.

The main benefits of this IC include:

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

• High efficiency (up to 95 %) for non-dimmable high power factor solutions

• High power factor (>0.9)

• Ease of integration and many protection features

• Low electronic Bill Of Material (BOM)

• Mains phase-cut dimmable using external components

• Highly flexible IC for use in buck, buck/boost and flyback modes

• Single inductor used for non-isolated configurations because of internal

demagnetization detection

The IC range has been designed to start up directly from the HV supply using an internal

gh-voltage current source. An internal clamp limits the supply voltage.

2. Features and benefits

 LED driver IC for driving strings of LEDs or high-voltage LED modules from a rectified

mains supply

 Driver provides power-efficient boundary co

nduction mode of operation with:

 No reverse recovery losses in fre

ewheel diode

 Zero-Current Switching (ZCS)

for switch turn-on

 Zero-volta

ge or valley switching for switch turn-off

 Minimal required inductance value and size

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

 No over or undershoots in the LED current

 Simple high input power factor solution (>0.9)

 Internal Protection features:

 UnderVoltage LockOut (UVLO)

 Leading-Edge Blanking (LEB)

 OverCurrent Protection (OCP)

 Internal OverTemperature Protection (OTP)

SSL2129AT

Dimmable LED driver IC

Rev. 4 — 3 October 2013 Product data sheet

Product data sheet Rev. 4 — 3 October 2013 2 of 19

NXP Semiconductors

SSL2129AT

Dimmable LED driver IC

 Brownout protection

 Output Short

Protection (OSP)

 Mains phase cut dimmable LED driver solution:

 Supports both leading and trailing-edge

dimmers

 Easy external temperature protection with a single NTC

 Open output protection using external components

 Compatible with wall switch

es with built-in indication light during standby

 IC lifetime easily matches or surp

asses LED lamp lifetime

 Input current distributed evenly over the ph

ase, reducing required output capacitor

size and bleeder dissipation

3. Applications

The SSL2129AT is intended for mains dimmable compact LED lamps for single mains

input voltages. Mains input voltages include 100 V, 120 V and 230 V (AC). The external

compon

ents determine the power range.

4. Quick reference data

[1] An internal clamp sets the supply voltage. The current into the VCC pin must not exceed the maximum I

value (see Table

4).

5. Ordering information

Table 1. Quick reference data

Symbol Parameter Conditions Min Typ Max Unit

supply voltage operating range 8 - 16 V

CC(INT)

internal supply current normal operation - 1.3 - mA

voltage on pin HV 0.4 - +600 V

DRAIN

voltage on pin DRAIN 0.4 - +600 V

conv

conversion frequency - 100 - kHz

o(DRIVER)max

maximum output voltage

on pin DRIVER

> V

CC(startup)

9 10.5 12 V

Table 2. Ordering information

Type number Package

Name Description Version

SSL2129AT SO8 plastic small package outline body; 8 leads; body width

3.9 mm

SOT96-1

Product data sheet Rev. 4 — 3 October 2013 3 of 19

NXP Semiconductors

SSL2129AT

Dimmable LED driver IC

6. Block diagram

Fig 1. SSL2129AT block diagram

DDD

17&

)81&7,21

6833/<

,17(51$/

5(*8/$725

$1'

%$1'*$3

9$//(<

'(7(&7,21

/2*,&

&21752/

$1'

3527(&7,21

2&3

7+(50$/

6+87'2:1

325

/2*,&

-)(7

9&&

17&

*1'

6285&(

'5,9(5

'5$,1

72102'

















72102'

%/$1.

72))0$;

9!9

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P19

SSL2129AT/1J

Mfr. #:

Buy SSL2129AT/1J

Manufacturer:

NXP Semiconductors

Description:

IC LED DRIVER OFFLINE DIM 8SO

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet

SSL2129AT/1J