SNVSAN5A July 2017  – October 2017 LM36011

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1Absolute Maximum Ratings
    2. 6.2ESD Ratings
    3. 6.3Recommended Operating Conditions
    4. 6.4Thermal Information
    5. 6.5Electrical Characteristics
    6. 6.6Timing Requirements
    7. 6.7Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
      1. 7.3.1Flash Mode
      2. 7.3.2Torch Mode
      3. 7.3.3IR Mode
    4. 7.4Device Functioning Modes
      1. 7.4.1Start-Up (Enabling The Device)
      2. 7.4.2Input Voltage Flash Monitor (IVFM)
      3. 7.4.3Fault/Protections
        1. 7.4.3.1Input Voltage Flash Monitor (IVFM)
        2. 7.4.3.2LED Short Fault
        3. 7.4.3.3Thermal Scale-Back (TSB)
        4. 7.4.3.4Thermal Shutdown (TSD)
        5. 7.4.3.5Undervoltage Lockout (UVLO)
        6. 7.4.3.6Flash Time-out (FTO)
    5. 7.5Programming
      1. 7.5.1Control Truth Table
      2. 7.5.2I2C-Compatible Interface
        1. 7.5.2.1Data Validity
        2. 7.5.2.2Start and Stop Conditions
        3. 7.5.2.3Transferring Data
        4. 7.5.2.4I2C-Compatible Chip Address
    6. 7.6Register Descriptions
      1. 7.6.1Enable Register (0x01)
      2. 7.6.2Configuration Register (0x02)
      3. 7.6.3LED Flash Brightness Register (0x03)
      4. 7.6.4LED Torch Brightness Register (0x04)
      5. 7.6.5Flags Register (0x05)
      6. 7.6.6Device ID and RESET Register (0x06)
  8. Applications and Implementation
    1. 8.1Application Information
    2. 8.2Typical Application
      1. 8.2.1Design Requirements
      2. 8.2.2Detailed Design Procedure
        1. 8.2.2.1Thermal Performance
        2. 8.2.2.2Input Capacitor Selection
      3. 8.2.3Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1Layout Guidelines
    2. 10.2Layout Example
  11. 11Device and Documentation Support
    1. 11.1Device Support
      1. 11.1.1Third-Party Products Disclaimer
    2. 11.2Documentation Support
      1. 11.2.1Related Documentation
    3. 11.3Trademarks
    4. 11.4Electrostatic Discharge Caution
    5. 11.5Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Features

  • Accurate and Programmable LED Currents
    • Flash / IR Currents Ranging from 11 mA up to 1.5 A (128 Levels)
    • Torch Currents Ranging from 2.4 mA up to 376 mA (128 Levels)
  • Flash Time-Out up to 1.6 Seconds
  • Optimized Flash LED Current During Low Battery Conditions (IVFM)
  • Grounded Cathode LED Operation for Improved Thermal Management
  • Small Total Solution Size: < 4 mm2
  • Hardware Strobe Enable (STROBE)
  • Input Voltage Range from 2.5 V to 5.5 V
  • 400-kHz I2C-Compatible Interface
    • I2C Address = 0x64

Applications

  • Mobile Phones
  • Tablets
  • IR LED Driver
  • Video Surveillance: IP Camera
  • Barcode Scanner
  • Portable Data Terminal

Description

The LM36011 is an ultra-small LED flash driver that provides a high level of adjustability. With a total solution size of 4 mm2, it can produce up to 1.5 A of LED flash current or up to 376 mA of torch current. This is all done from a accurately programmable current source without the need of a pre-regulated voltage, which saves on solution size and cost.

Features of the LM36011 are controlled via an I2C-compatible interface. These features include: hardware flash (STROBE), flash time-out, UVLO, thermal scale-back, LED fault detection, and 128 programmable currents for both flash and movie mode (torch). The device operates over a –40°C to +85°C ambient temperature range.

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
LM36011DSBGA (8)1.512 mm × 0.800 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

LM36011 typicalappsource.gif