SSL2102 datasheet(12/21 Pages) NXP

12 / 21 page

SSL2102_1

Product data sheet

Rev. 01 — 29 June 2009

12 of 21

NXP Semiconductors

SSL2102

SMPS IC for dimmable LED lighting

[1]

Measured on a JEDEC test board (standard EIA/JESD 51-3) in free air with natural convection.

11. Characteristics

(1) Top Cu coverage 20 %

(2) Top Cu coverage 50 %

(3) Top Cu coverage 100 %

Fig 8.

SSL2102 core material conductivity

Table 5:

Thermal characteristics

Symbol

Parameter

Conditions

Typ

Unit

Rth(j-a)

thermal resistance from junction to ambient

[1] 62

(1)

(3)

(2)

PCB area (mm2)

10000

8000

4000

6000

2000

014aaa812

100

Rth(j-a)

(

°C/W)

Table 6.

Characteristics

Tamb =25 °C; no overtemperature; all voltages are measured with respect to ground; currents are

positive when ﬂowing into the IC and PWMLIMIT and BRIGHTNESS pins are disconnected unless

otherwise speciﬁed. Typical frequency 100 kHz.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supply

ICC

supply current

normal operation;

VDRAIN =60V;

VCC =20V

1.7

ICC(ch)

charge supply

current

VDRAIN >60V;

VCC =0V

-6

−4.5

VCC

supply voltage

8.5

VCC(startup)

start-up supply

voltage

9.75

10.25

10.75

VCC(UVLO)

undervoltage

lockout supply

voltage

7.9

8.2

8.5

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