SSL2109 datasheet, PDF - EEWORLD Datasheet

SSL2109 series

GreenChip controller for LED lighting

Rev. 3 — 4 June 2012

Product data sheet

1. General description

The SSL2109 series is a range of high-voltage Integrated Circuits (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 %)

Ease of integration and many protection features

Low electronic Bill Of Material (BOM)

The IC is supplementary to the SSL2108 series but without an internal switch. The IC

range has been designed to start up directly from the HV supply by an internal

high-voltage current source. Thereafter, the dV/dt supply is used with capacitive coupling

from the drain, or any other auxiliary supply. This functionality provides full flexibility in the

application design. An internal clamp limits the supply voltage.

The IC provides accurate output current control to within 5 % LED current accuracy. The

IC can be operated using Pulse-Width Modulation (PWM) dimming and has many

protection features including easy LED temperature feedback.

2. Features and benefits



LED controller IC for driving strings of LEDs or high-voltage LED modules from a

rectified mains supply



Part of a high-efficiency switch mode buck driver product family



Controller that has power-efficient boundary conduction mode of operation with:



No reverse recovery losses in freewheel diode



Zero Current Switching (ZCS) for switch turn-on



Zero voltage or valley switching for switch turn-off



Minimal required inductance value and size



Direct PWM dimming possible



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



Negligible AC mains ripple in LED current and minimal total capacitor value



No over or undershoots in the LED current



No binning on the LED forward voltage required



Internal Protections:



UnderVoltage LockOut (UVLO)

NXP Semiconductors

SSL2109 series

GreenChip controller for LED lighting



Leading-Edge Blanking (LEB)



OverCurrent Protection (OCP)



Short-Winding Protection (SWP); SSL2109T only



Internal OverTemperature Protection (OTP)



Brownout protection



Output Short Protection (OSP)



Low component count (see

Figure 4)

LED driver solution:



No dim switch and high-side driver required for PWM dimming



Easy external temperature protection with a single NTC



Option for soft-start function



Compatible with wall switches with built-in indication light during standby



IC lifetime easily matches or surpasses LED lamp lifetime

3. Applications

The SSL2109 series is intended for compact LED lamps with accurate fixed current output

for single mains input voltages. Mains input voltages include 100 V, 120 V and 230 V

(AC). The output signal can be modulated using a PWM signal. The power range is

determined by external components.

4. Quick reference data

Table 1.

Symbol

V

CC

I

CC(INT)

V

HV

V

DRAIN

f

conv

Quick reference data

Parameter

supply voltage

internal supply current

voltage on pin HV

voltage on pin DRAIN

conversion frequency

VCC > V

CC(startup)

Conditions

operating range

normal operation

Min

8

-

−0.4

-

9

Typ

-

1.3

-

10.5

Max

14

-

600

200

12

Unit

V

mA

V

kHz

V

o(DRIVER)max

maximum output voltage

on pin DRIVER

5. Ordering information

Table 2.

Ordering information

Package

Name

SSL2109AT

SSL2109T

SO8

Description

plastic small package outline body; 8 leads; body width

3.9 mm

Version

SOT96-1

Type number

SSL2109_SER

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 3 — 4 June 2012

2 of 20

NXP Semiconductors

SSL2109 series

GreenChip controller for LED lighting

6. Block diagram

+9

-)(7

G9G7

6833/<

,17(51$/

5(*8/$725

$1'

%$1'*$3

9$//(<

'(7(&7,21

/2*,&

72))0$;

'5$,1

'9'7

9&&

17&

)81&7,21

7+(50$/

6+87'2:1

325

/2*,&

&21752/

$1'

3527(&7,21

7210$;

%/$1.

6285&(

'5,9(5

*1'

2&3

9 ! 9

DDD

Fig 1.

SSL2109AT block diagram

SSL2109_SER

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 3 — 4 June 2012

3 of 20

NXP Semiconductors

SSL2109 series

GreenChip controller for LED lighting

+9

-)(7

G9G7

6833/<

,17(51$/

5(*8/$725

$1'

%$1'*$3

9$//(<

'(7(&7,21

/2*,&

72))0$;

'9'7

9&&

'5$,1

17&

)81&7,21

7+(50$/

6+87'2:1

325

/2*,&

&21752/

$1'

3527(&7,21

7210$;

'5,9(5

%/$1.

6285&(

9

6:3

*1'

2&3

9 ! 9

DDD

Fig 2.

SSL2109T block diagram

SSL2109_SER

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 3 — 4 June 2012

4 of 20

NXP Semiconductors

SSL2109 series

GreenChip controller for LED lighting

7. Pinning information

7.1 Pinning

HV

VCC

NTC

SOURCE

1

2

8

7

DRAIN

GND

DVDT

DRIVER

SSL2109

3

4

aaa-001742

6

5

Fig 3.

Pin configuration

7.2 Pin description

Table 3.

Symbol

HV

VCC

NTC

SOURCE

DRIVER

DVDT

GND

DRAIN

Pin description

1

2

3

4

5

6

7

8

Description

high-voltage supply pin

supply voltage

temperature protection input

low-side external switch

driver output

AC supply pin

ground

high-side external switch

SSL2109_SER

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 3 — 4 June 2012

5 of 20

SSL2109

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