LED2001

The LED2001 is an 850 kHz fixed switching frequency monolithic step-down DC-DC converter designed to operate as precise constant current source with an adjustable current capability up to 4 A DC. The embedded PWM dimming circuitry features LED brightness control. The regulated output current is set connecting a sensing resistor to the feedback pin. The embedded synchronous rectification and the 100 mV typical R_SENSE voltage drop enhance the efficiency performance.

The size of the overall application is minimized thanks to the high switching frequency and ceramic output capacitor compatibility. The device is fully protected against thermal overheating, overcurrent and output short-circuit. The LED2001 is available in VFQFPN 4x4 mm 8-lead package, and HSOP8.

Key Features

3.0 V to 18 V operating input voltage range
850 kHz fixed switching frequency
100 mV typ. current sense voltage drop
PWM dimming
± 7% output current accuracy
Synchronous rectification
95 mΩ HS/ 69 mΩ LS typical R_DS(on)
Peak current mode architecture
Embedded compensation network
Ceramic output capacitor compliant
Internal current limiting
Thermal shutdown

リソース

技術文書

製品スペック

	Description	バージョン	サイズ
	DS9524: 4 A monolithic step-down current source with synchronous rectification	2.0	7 MB

Publications and Collaterals

パンフレット

	Description	バージョン	サイズ
	パワー･マネージメントガイド 2017	09.2017	3 MB

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製品型番	製造元	Description
STEVAL-ILL054V1		4 A HB LED driver with dimming function based onthe LED2001 in a QFN package
STEVAL-ILL054V2		4 A HB LED driver with dimming function based on the LED2001 in an HSOP8 package

LED

DC/DC

Input

Volt. Min [V] This option is required. And must be less than or equal to Volt. Max [V]

Volt. Max [V] This option is required. And must be greater than or equal to Volt. Min [V]

LED custom

VF [V] This option is required.

IF [A] This option is required.

Rd [Ω] This option is required.

LEDs

in the string:

This option is required. And must be a whole positive number between 1 and 20.

number of strings:

This option is required. And must be a whole positive number between 1 and 20.

出力

Voltage:

Current:

サンプル & 購入

製品型番	Marketing Status	数量	Unit Price (US$) *	パッケージ	Packing Type	Operating Temperature (°C) (min)	Operating Temperature (°C) (max)	ECCN (US)	Country of Origin	More info	Order from ST	Order from Distributors
LED2001PHR	Active : Product is in volume production	1000	0.935	PowerSO-8	Tape And Reel	-40	150	EAR99	PHILIPPINES	MORE INFO	Free Sample 買い物かごに追加	DISTRIBUTOR AVAILABILITY
LED2001PUR	Active : Product is in volume production	1000	0.935	VFDFPN 8 4x4x1.0	Tape And Reel	-40	150	EAR99	MALAYSIA	MORE INFO	Free Sample 買い物かごに追加	DISTRIBUTOR AVAILABILITY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

品質 & 信頼性

製品型番	Marketing Status	パッケージ	Grade	RoHS Compliance Grade	Material Declaration**
LED2001PHR	アクティブ	PowerSO-8	Industrial	Ecopack2
LED2001PUR	アクティブ	VFDFPN 8 4x4x1.0	Industrial	Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.