SNVSAN4B April   2017  – October 2017 LM36010

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Flash Mode
      2. 7.3.2 Torch Mode
      3. 7.3.3 IR Mode
    4. 7.4 Device Functioning Modes
      1. 7.4.1 Start-Up (Enabling The Device)
      2. 7.4.2 Pass Mode
      3. 7.4.3 Input Voltage Flash Monitor (IVFM)
      4. 7.4.4 Fault/Protections
        1. 7.4.4.1 Overvoltage Protection (OVP)
        2. 7.4.4.2 Input Voltage Flash Monitor (IVFM)
        3. 7.4.4.3 LED and/or VOUT Short Fault
        4. 7.4.4.4 Current Limit (OCP)
        5. 7.4.4.5 Thermal Scale-Back (TSB)
        6. 7.4.4.6 Thermal Shutdown (TSD)
        7. 7.4.4.7 Undervoltage Lockout (UVLO)
        8. 7.4.4.8 Flash Time-out (FTO)
    5. 7.5 Programming
      1. 7.5.1 Control Truth Table
      2. 7.5.2 I2C-Compatible Interface
        1. 7.5.2.1 Data Validity
        2. 7.5.2.2 Start and Stop Conditions
        3. 7.5.2.3 Transferring Data
        4. 7.5.2.4 I2C-Compatible Chip Address
    6. 7.6 Register Descriptions
      1. 7.6.1 Enable Register (0x01)
      2. 7.6.2 Configuration Register (0x02)
      3. 7.6.3 LED Flash Brightness Register (0x03)
      4. 7.6.4 LED Torch Brightness Register (0x04)
      5. 7.6.5 Flags Register (0x05)
      6. 7.6.6 Device ID and RESET Register (0x06)
  8. 8 Applications and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Thermal Performance
        2. 8.2.2.2 Output Capacitor Selection
        3. 8.2.2.3 Input Capacitor Selection
        4. 8.2.2.4 Inductor Selection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

1 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: < 7 mm2
  • Hardware Strobe Enable (STROBE)
  • Input Voltage Range from 2.5 V to 5.5 V
  • 400-kHz I2C-Compatible Interface
    • I2C Address = 0x64

2 Applications

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

3 Description

The LM36010 is an ultra-small LED flash driver that provides a high level of adjustability. With a total solution size of 7 mm2, it can produce up to 1.5 A of LED flash current or up to 376 mA of torch current.

The device utilizes a 2-MHz or 4-MHz fixed-frequency, synchronous boost converter to power the 1.5-A constant current LED source. An adaptive regulation method ensures the current source remains in regulation and maximizes efficiency as it controls the current from 11 mA up to 1.5 A in flash mode or from 2.4 mA up to 376 mA in torch mode.

Features of the LM36010 are controlled via an I2C-compatible interface. These features include: hardware flash (STROBE) and 128 programmable currents for both flash and movie mode (torch). The 2-MHz or 4-MHz switching frequency, overvoltage protection (OVP), and adjustable current limit allow for the use of tiny, low-profile inductors and ceramic capacitors. The device operates over a –40°C to +85°C ambient temperature range.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
LM36010 DSBGA (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

LM36010 typicalapp.gif