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LM3555TLX/NOPB Power Path Management IC PMIC Synchronous Boost Converter with 500 mA

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LM3555TLX/NOPB Power Path Management IC PMIC Synchronous Boost Converter with 500 mA

Brand Name TI
Model Number LM3555TLX/NOPB
Minimum Order Quantity Contact us
Price Contact us
Payment Terms Paypal, Western Union, TT
Supply Ability 50000 Pieces per Day
Delivery Time The goods will be shipped within 3 days once received fund
Packaging Details DSBGA
Description LED Driver IC 1 Output DC DC Regulator Step-Up (Boost) I²C Dimming 500mA (Flash) 12-DSBGA
Minimum Operating Temperature - 30 C
Manufacturer Texas Instruments
Product Category Power Management Specialized - PMIC
Maximum Operating Temperature + 85 C
Package / Case DSBGA-12
Packaging Reel
Detailed Product Description

LM3555TLX/NOPB Power Path Management IC PMIC Synchronous Boost Converter with 500 mA

 

1 Features

  • High-Voltage High-Side Current Source Allows for Grounded Cathode LED Operation
  • Synchronous Boost Converter

  • Peak Converter Efficiency > 90%

  • Accurate and Programmable LED Current Ranging From 60 mA to 500 mA

  • Adaptive LED Current Range Based on LED Configuration

  • Dedicated Indicator Current Source

  • Dedicated Torch and Strobe Pins

  • Dual Mode Control (General Purpose or I2C)

  • Broken Inductor Detection

  • Output Overvoltage Protection

  • Output and LED Short-Circuit Protection

  • 400-kHz I2C-Compatible Interface

     

2 Applications

Camera Phone LED Flash

 

3 Description

The LM3555 is a 2-MHz fixed-frequency, current- mode synchronous boost converter designed to drive either a single flash LED at 500 mA or two series flash LEDs at 400 mA. A high-voltage current source allows the LEDs to be terminated to the GND plane eliminating the need for an additional return trace back to the device.

A dual-mode control interface allows the user to configure the LM3555 with a general-purpose interface using two enable pins for control or an I2C allowing a higher level of control. Both interfaces allow access to the indicator, assist light, and flash modes. A dedicated STROBE pin provides a direct interface to trigger the flash event, while an external TORCH pin provides an additional method for enabling the LEDs in a constant current mode.

The LM3555 can adaptively scale the maximum flash level delivered to the LEDs based upon the flash configuration, whether it be a single LED or two LEDs in series.

Eight protection features are available on the LM3555 ranging from overvoltage protection to broken inductor detection. The LM3555 has four selectable inductor current limits to help the user select an inductor that is appropriate for the design.

Device Information

PART NUMBER

PACKAGE

BODY SIZE (MAX)

LM3555

DSBGA (12)

2.09 mm × 1.565 mm

Product Tags: power management integrated circuit   microchip battery management  
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