LM3646YFQR Texas Instruments - Yeehing Electronics

1.5A Synchronous Boost LED flash driver w/ dual high-side current sources

Pricing (USD)

Quantity	Unit Price
1 — 99	1.198
100 — 249	0.922
250 — 999	0.679
1,000 +	0.04

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	LED Lighting Drivers
RoHS	Y
Output Current	3 A
Input Voltage	2.7 V to 5.5 V
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C
Package / Case	DSBGA-20
Series	LM3646
Packaging	Reel
Features	I2C Control, Input/Output Isolation, LED Thermal Monitor, Load Disconnect During Shutdown, OVP, Ove
Operating Temperature Range	- 40 C to + 85 C
Brand	Texas Instruments
Development Kit	LM3646EVM
Operating Supply Voltage	2.7 V to 5.5 V
Product Type	LED Lighting Drivers
Factory Pack Quantity	3000
Subcategory	Driver ICs

For more information, please refer to datasheet

Documents

LM3646YFQR Datasheet

More Information

The LM3646 utilizes a 4-MHz fixed-frequency synchronous boost converter to provide power to dual 1.5-A constant current LED sources. The high-side current sources allow for grounded cathode LED operation providing flash current up to 1.5 A total. An adaptive headroom regulation scheme ensures the LED currents remain in regulation and maximizes efficiency. The combination of dual LED driving capability, high LED current, small solution size and high level of adjustability make the LM3646 perfect for camera phone LED flash and torch applications.