STEVAL-TLL011V1 STMicroelectronics, STEVAL-TLL011V1 Datasheet

STEVAL-TLL011V1

Manufacturer Part Number

STEVAL-TLL011V1

Description

LED Lighting Development Tools High PWR 40 WH LED LCD display Board

Manufacturer

STMicroelectronics

Datasheet

1.STEVAL-TLL011V1.pdf (4 pages)

Specifications of STEVAL-TLL011V1

Product Category

LED Lighting Development Tools

Rohs

yes

Product

Demonstration Boards

Core

STLD41

Operating Supply Voltage

3 V to 21 V

For Use With

High Power White LEDs

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

STEVAL-TLL011V1

Manufacturer:

STMicroelectronics

Quantity:

Company:

BOSTOCK HK LIMITED

Part Number:

STEVAL-TLL011V1

Manufacturer:

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Features

■

Description

The STEVAL-TLL011V1 demonstration board

demonstrates the performance of the STLD41, a

boost converter that operates from 3.0 V to 21 V

and which can provide an output voltage as high

as 38 V.

It can drive up to 40 white LEDs connected in 4

strings of 10 LEDs in series. The total output

current capability is 120 mA at an output voltage

of 38 V.

Regulation is performed by the internal error

amplifier which works with the feedback voltage

from the sensing resistor.

The device can be turned ON/OFF by way of the

logic signal connected to the EN pin.

The LEDs can be dimmed by applying a PWM

signal to the PWM input.

May 2012

For further information contact your local STMicroelectronics sales office.

Driver for up to 40 white LEDs for mid-sized LCD display backlight

Boost DC-DC converter

Drives up to 40 LEDs (4 strings of 10) with a

total current up to 120 mA

Input voltage range: 3.0 V to 21 V

Output current control

1.8 MHz fixed frequency PWM control

PWM input for output current dimming with a

frequency range of 25 kHz - 50 kHz

2 A integrated switch

Overvoltage protection

Chip overtemperature detection and protection

Less than 1 µA standby current

Soft-start function

RoHS compliant

Doc ID 023189 Rev 2

STEVAL-TLL011V1

based on the STLD41

Data brief

www.st.com

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Related parts for STEVAL-TLL011V1

STEVAL-TLL011V1 Summary of contents

Page 1

... Less than 1 µA standby current ■ Soft-start function ■ RoHS compliant Description The STEVAL-TLL011V1 demonstration board demonstrates the performance of the STLD41, a boost converter that operates from 3 and which can provide an output voltage as high can drive white LEDs connected in 4 strings of 10 LEDs in series ...

Page 2

... Schematic diagram 1 Schematic diagram Figure 1. Schematic diagram 2/4 Doc ID 023189 Rev 2 STEVAL-TLL011V1 ...

Page 3

... STEVAL-TLL011V1 2 Revision history Table 1. Document revision history Date 28-May-2012 30-May-2012 Revision 1 Initial release. 2 Minor text changes to improve readability Doc ID 023189 Rev 2 Revision history Changes 3/4 ...

Page 4

... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 4/4 Please Read Carefully: © 2012 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 023189 Rev 2 STEVAL-TLL011V1 ...

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