SNVS606L June   2009  – December 2014 LM3530

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 I2C Device Options
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 I2C-Compatible Timing Requirements (SCL, SDA)
    7. 7.7 Simple Interface Timing
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Start-Up
      2. 8.3.2  Light Load Operation
      3. 8.3.3  Ambient Light Sensor
      4. 8.3.4  ALS Operation
      5. 8.3.5  ALS Averaging Time
        1. 8.3.5.1 Averager Operation
      6. 8.3.6  Zone Boundary Settings
      7. 8.3.7  Zone Boundary Trip Points and Hysteresis
      8. 8.3.8  Minimum Zone Boundary Settings
      9. 8.3.9  LED Current Control
      10. 8.3.10 Exponential or Linear Brightness Mapping Modes
      11. 8.3.11 PWM Input Polarity
      12. 8.3.12 I2C-Compatible Current Control Only
      13. 8.3.13 Simple Enable Disable With PWM Current Control
      14. 8.3.14 Ambient Light Current Control
      15. 8.3.15 Ambient Light Current Control + PWM
      16. 8.3.16 Interrupt Output
      17. 8.3.17 Overvoltage Protection
      18. 8.3.18 Hardware Enable
      19. 8.3.19 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown
      2. 8.4.2 I2C Mode
      3. 8.4.3 PWM + I2C Mode
      4. 8.4.4 ALS Mode
      5. 8.4.5 Simple Enable Mode
    5. 8.5 Programming
      1. 8.5.1 I2C-Compatible Interface
        1. 8.5.1.1 Start and Stop Condition
        2. 8.5.1.2 I2C-Compatible Address
        3. 8.5.1.3 Transferring Data
    6. 8.6 Register Maps
      1. 8.6.1 Register Descriptions
        1. 8.6.1.1 General Configuration Register (GP)
        2. 8.6.1.2 ALS Configuration Register
        3. 8.6.1.3 Brightness Ramp Rate Register
        4. 8.6.1.4 ALS Zone Information Register
        5. 8.6.1.5 ALS Resistor Select Register
        6. 8.6.1.6 Brightness Control Register
        7. 8.6.1.7 Zone Boundary Register
        8. 8.6.1.8 Zone Target Registers
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 LED Current Setting/Maximum LED Current
        2. 9.2.2.2 Maximum Duty Cycle
        3. 9.2.2.3 Peak Current Limit
        4. 9.2.2.4 Output Voltage Limitations
        5. 9.2.2.5 Output Capacitor Selection
        6. 9.2.2.6 Inductor Selection
        7. 9.2.2.7 Diode Selection
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Output Capacitor Placement
      2. 11.1.2 Schottky Diode Placement
      3. 11.1.3 Inductor Placement
      4. 11.1.4 Input Capacitor Selection and Placement
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6 Pin Configuration and Functions

DSBGA (YFZ or YFQ) Package
12 Pins
Top View
connect_snvs606.gif

Pin Functions

PIN TYPE DESCRIPTION
NUMBER NAME
A1 SDA I/O Serial data connection for I2C-compatible interface.
A2 SCL I Serial data connection for I2C-compatible interface.
A3 SW PWR Inductor connection, diode anode connection, and drain connection for internal NFET. Connect the inductor and diode as close as possible to SW to reduce parasitic inductance and capacitive coupling to nearby traces.
B1 PWM I External PWM brightness control input and simple enable input.
B2 INT O Logic interrupt output signaling the ALS zone has changed.
B3 GND Ground
C1 ALS2 I Ambient light sensor input 2 with programmable internal pull-down resistor.
C2 HWEN I Active high hardware enable (active low reset). pull this pin high to enable the LM3530.
C3 IN PWR Input voltage connection. Connect a 2.7-V to 5.5-V supply to IN and bypass to GND with a 2.2-µF or greater ceramic capacitor.
D1 ALS1 I Ambient light sensor input 1 with programmable internal pulldown resistor.
D2 OVP I Output voltage sense connection for overvoltage sensing. Connect OVP to the positive terminal of the output capacitor.
D3 ILED PWR Input terminal to internal current sink. The boost converter regulates ILED to 0.4 V.