LM3508TLX/NOPB Texas Instruments - Yeehing Electronics

Synchronous magnetic constant current white LED driver

Pricing (USD)

Quantity	Unit Price
1 — 99	0.459
100 — 249	0.353
250 — 999	0.26
1,000 +	0.13

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	LED Lighting Drivers
RoHS	Y
Supply Current - Max	30000 uA
Minimum Operating Temperature	- 30 C
Maximum Operating Temperature	+ 85 C
Mounting Style	SMD/SMT
Package / Case	uSMD
Series	LM3508
Packaging	Reel
Features	OVP
Height	0.36 mm
Length	1.51 mm
Operating Temperature Range	- 30 C to + 85 C
Width	1.51 mm
Brand	Texas Instruments
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

LM3508TLX/NOPB Datasheet

More Information

The LM3508 is a synchronous boost converter (no external Schottky diode required) that provides a constant current output. It is designed to drive up to 4 series white LEDs at 30mA from a single-cell Li-Ion battery. A single low power external resistor is used to set the maximum LED current. The LED current can be adjusted by applying a PWM signal of up to 100kHz to the DIM pin. Internal soft-start circuitry is designed to eliminate high in-rush current at start-up. For maximum safety, the device features an advanced short-circuit protection when the output is shorted to ground. Additionally, over-voltage protection and an 850kHz switching frequency allow for the use of small, low-cost output capacitors with lower voltage ratings. During shutdown, the output is disconnected from the input preventing a leakage current path through the LEDs to ground. The LM3508 is available in a tiny 9-bump chip-scale DSBGA package.