STLD20D_06 datasheet(6/31 Pages) STMICROELECTRONICS

Numer części	STLD20D

Szczegółowy opis	White LED power supply

PDF	31 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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6 / 31 page

Block diagram

STLD20D

6/31

Note:

The external components proposal should be considered as a design reference guide.The

performances mentioned in the electrical characteristics table are not guaranteed for all the

possible electrical parameters of the components included in this list. On the other hand the

operation of STLD20D is not limited with the use of components included in this list.

Figure 3.

Basic connection

Table 1.

External components proposal

Symbol

Parameter

Test conditions

Value

Unit

Min.

Typ.

Max.

RLED

LED current resistance

Ω

CIN

Input filtering capacitor

Ceramic type

2.2

µF

COUT

Output capacitance

Boost inductor (height < 2mm)

Inductance

µH

Resistance at 500kHz

Ω

ISAT (RSET = 100kΩ)

300

Boost diode

(STMicroelectronics STPS1L40M type)

VRRM

Vdc

IF (peak forward current)

VF @ IF = 1A Tj = 25°C

0.40

0.46

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