Efficient, Step-down, High-power LED Driver with Strobe and Synchronization for Fire Alarms

(ACTIVE) PMP9762

Description & Features

Technical Documents

Support & Training

Order Now


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


Description

This TI Design demonstrates an efficient, step-down, high-power LED driver with strobe & synchronization for fire alarms. A 3-A LED is driven from a common, quasi-regulated 12-V input bus at over 85% efficiency. The circuit supports a clock input for the strobe function, which allows synchronization of multiple LED drivers to a common clock source.

As seen at APEC

Features
  • LED current of up to 3A
  • 4.5V to 17V input voltage range
  • Synchronizable to an external clock signal
  • Supports PWM and/or analog dimming, including strobe
  • Over 85% efficiency
  • This circuit is tested hardware with a test report and all design files

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP9762.1
(Output Voltage 1)
Vin (Min) (V)4.5
Vin (Max) (V)17
Vout (Nom) (V)3.5
Iout (Max) (A)3
Output Power (W)10.5
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Synchronous

TI Devices (3)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LMC555  World’s smallest 555 timer with low power, high accuracy and a Fmax of 3MHz  Clock and Timing  Sample & Buy View Design Kits & Evaluation Modules
LMC555-MD8  World’s smallest 555 timer with low power, high accuracy and a Fmax of 3MHz (Military Version)  Clock & Timing Products  Sample & Buy View Design Kits & Evaluation Modules
TPS62130  3-17V 3A Step-Down Converter with DCS-Control in 3x3 QFN Package  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Application notes (1)
Title Abstract Type Size (KB) Date Views
PDF 935 20 Feb 2015 171
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 213 20 Feb 2015 65
PDF 25 20 Feb 2015 28
PDF 135 20 Feb 2015 119


Support & Training

TI E2E Community

As a member of  myTI you can join the TI E2E™ Community  where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Content is provided "AS IS" by the respective TI and Community contributors and does not constitute TI specifications. See  Terms of use.

Engage in the Community

Blogs

Wikis

Visit the TI Wiki