LED2001 datasheet(21/42 Pages) STMICROELECTRONICS

Part #	LED2001

Description	4 A monolithic step-down current source with synchronous rectification

Download	42 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

21 / 42 page

DocID024346 Rev 1

21/42

LED2001

Application notes

Figure 13. Dimming signal

For example, assuming a 1 kHz dimming frequency the maximum dimming depth is 5% or,

given a 2% dimming depth, it follows a 200 Hz maximum fDIM.

The LED2001 dimming performance is strictly dependent on the system small signal

response. As a consequence, an optimized compensation (good phase margin and

bandwidth maximized) and minimized COUT value are crucial for the best performance.

6.7

eDesign studio software

The LED2001 is supported by the eDesign software which can be viewed online at

www.st.com.

Figure 14. eDesign studio screenshot

The software easily supports the component sizing according to the technical information

given in this datasheet (see Section 6 and Section 7).

The end user is requested to fill in the requested information such as the input voltage

range, the selected LED parameters and the number of LEDs composing the row.

AM12904v1

Similar Part No. - LED2001

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	LED2000	2Mb / 40P	3 A monolithic step-down current source with synchronous rectification
	LED2000DR	2Mb / 40P	3 A monolithic step-down current source with synchronous rectification
	LED2000PUR	2Mb / 40P	3 A monolithic step-down current source with synchronous rectification

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	ST1CC40	1Mb / 37P	3 A monolithic step-down current source with synchronous rectification
	LED2000	2Mb / 40P	3 A monolithic step-down current source with synchronous rectification
	LED5000	1Mb / 52P	3 A monolithic step-down current source with dimming capability
	L6910	453Kb / 21P	ADJUSTABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION
	L6732	900Kb / 37P	Adjustable step-down controller with synchronous rectification
	L6910	682Kb / 29P	ADJUSTABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION
	L6730	1Mb / 52P	Adjustable step-down controller with synchronous rectification
	L6730C	1Mb / 50P	Adjustable step-down controller with synchronous rectification
	L6732_0906	823Kb / 36P	Adjustable step-down controller with synchronous rectification
	L6732	794Kb / 33P	Adjustable step-down controller with synchronous rectification