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LT3518HUF#PBF

LED Driver IC 1 Output DC DC Regulator Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 2.3A (Switch) 16-QFN (4x4)

Manufacturer:

Analog Devices, Inc
Mfr.Part #:

LT3518HUF#PBF
Datasheet:

LT3518HUF#PBF Datasheet (PDF)
packingQty:

Tube,91
packingOption:

Tube
tempRange:

-40 to 150C
Series:

LT3518
EDA/CAD Models:

Request Free CAD Models for LT3518HUF#PBF

Email: [email protected]

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Tel: +852 95804164

LT3518HUF#PBF General Description

The LT3518 is a current mode DC/DC converter with an internal 2.3A, 45V switch specifically designed to drive LEDs. The LT3518 operates as a LED driver in boost, buck mode and buck-boost mode. It combines a traditional voltage loop and a unique current loop to operate as a constant-current source or constant-voltage source. Programmable switching frequency allows optimization of the external components for efficiency or component size. The switching frequency of the LT3518 can be synchronized to an external clock signal. The LED current is externally programmable with a 100mV sense resistor. The external PWM input provides 3000:1 LED dimming. The CTRL pin provides further 10:1 dimming ratio.

Key Features

3000:1 True Color PWM^™ Dimming Ratio
2.3A, 45V Internal Switch
100mV High Side Current Sense
Open LED Protection
Adjustable Frequency: 250kHz to 2.5MHz
Wide Input Voltage Range:
- Operation from 3V to 30V
- Transient Protection to 40V
Operates in Boost, Buck Mode and Buck-Boost Mode
Gate Driver for PMOS LED Disconnect
Constant-Current and Constant-Voltage Regulation
CTRL Pin Provides 10:1 Analog Dimming
Low Shutdown Current: <1μA
Available in (4mm × 4mm) 16-Lead QFN and 16-Pin TSSOP Packages

Application

Display Backlighting
Automotive and Avionic Lighting
Illumination
Scanners

Specifications

model	LT3518HUF#PBF	packingQty	Tube,91
packingOption	Tube	lifeCycle	production
tempRange	-40 to 150C	Product Category	LED Lighting Drivers
Series	LT3518	Mounting Style	SMD/SMT
Number of Outputs	1 Output	Output Current	1.86 A
Features	Brightness Control/Dimming	Dimming	PWM
Number of Channels	1 Channel	Product Type	LED Lighting Drivers
Factory Pack Quantity	91	Subcategory	Driver ICs
Unit Weight	0.003527 oz