SNOSB43C September   2011  – November 2016 LM3560

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 I2C Timing Specifications (SCL, SDA)
    7. 6.7 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 Power Amplifier Synchronization (Tx1)
        1. 7.3.1.1 TX1 Shutdown
      2. 7.3.2 Independent LED Control
      3. 7.3.3 Hardware Torch
      4. 7.3.4 Fault Protections
        1. 7.3.4.1 Overvoltage Protection
        2. 7.3.4.2 Current Limit
        3. 7.3.4.3 Flash Timeout
        4. 7.3.4.4 Indicator LED/Thermistor (LED1/NTC)
          1. 7.3.4.4.1 Message Indicator Current Source (LEDI/NTC)
            1. 7.3.4.4.1.1 Message Indicator Example 1 (Single Pulse With Dead Time):
            2. 7.3.4.4.1.2 Message Indicator Example 2 (Multiple Pulses With Dead Time):
          2. 7.3.4.4.2 Updating The Message Indicator
      5. 7.3.5 Input Voltage Monitor
        1. 7.3.5.1 Input Voltage Flash Monitor (Flash Current Rising)
      6. 7.3.6 Last Flash Register
      7. 7.3.7 LED Voltage Monitor
      8. 7.3.8 ADC Delay
      9. 7.3.9 Flags Register and Fault Indicators
        1. 7.3.9.1 Flash Timeout
        2. 7.3.9.2 Thermal Shutdown
        3. 7.3.9.3 LED Fault
        4. 7.3.9.4 TX1 and TX2 Interrupt Flags
        5. 7.3.9.5 LED Thermal Fault (NTC Flag)
        6. 7.3.9.6 VIN Flash Monitor Fault
        7. 7.3.9.7 VIN Monitor Fault
    4. 7.4 Device Functional Modes
      1. 7.4.1  Start-Up (Enabling the Device)
      2. 7.4.2  Pass Mode
      3. 7.4.3  Flash Mode
      4. 7.4.4  Torch Mode
      5. 7.4.5  Privacy Indicator Mode
      6. 7.4.6  GPIO1 Mode
      7. 7.4.7  TX2/INT/GPIO2
      8. 7.4.8  TX2 Mode
        1. 7.4.8.1 TX2 Shutdown
      9. 7.4.9  GPIO2 Mode
      10. 7.4.10 Interrupt Output (INT Mode)
      11. 7.4.11 NTC Mode
      12. 7.4.12 Alternate External Torch (AET) Mode
      13. 7.4.13 Automatic Conversion Mode
      14. 7.4.14 Manual Conversion Mode
    5. 7.5 I2C-Compatible Interface
      1. 7.5.1 START and STOP Conditions
      2. 7.5.2 I2C-Compatible Chip Address
      3. 7.5.3 Transferring Data
    6. 7.6 Register Descriptions
      1. 7.6.1  Enable Register (Address 0x10)
      2. 7.6.2  Privacy Register (Address 0x11)
      3. 7.6.3  Indicator Register (Address 0x12)
      4. 7.6.4  Indicator Blinking Register (Address 0x13)
      5. 7.6.5  Privacy PWM Period Register (Address 0x14)
      6. 7.6.6  GPIO Register (Address 0x20)
      7. 7.6.7  LED Forward Voltage ADC (VLED Monitor Register, Address 0x30)
      8. 7.6.8  ADC Delay Register (Address 0x31)
      9. 7.6.9  VIN Monitor Register (Address 0x80)
      10. 7.6.10 Last Flash Register (Address 0x81)
      11. 7.6.11 Torch Brightness Register Descriptions (Address 0xA0)
      12. 7.6.12 Flash Brightness Register (Address 0xB0)
      13. 7.6.13 Flash Duration Register (Address 0xC0)
      14. 7.6.14 Flags Register (Address 0xD0)
      15. 7.6.15 Configuration Register 1 (Address 0xE0)
      16. 7.6.16 Configuration Register 2 (Address 0xF0)
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 LM3560 Typical Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Output Capacitor Selection
          2. 8.2.1.2.2 Input Capacitor Selection
          3. 8.2.1.2.3 Inductor Selection
      2. 8.2.2 NTC Thermistor Application
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Recommendations
    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

Package Options

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

5 Pin Configuration and Functions

YZR Package
16-Pin DSBGA
Top View
LM3560 30102802.gif

Pin Functions

PIN TYPE DESCRIPTION
NO. NAME
A1 LED1 Power High-side current source output for flash LED
A2, B2 OUT Power Step-up DC-DC converter output. Connect a 10-µF ceramic capacitor between this pin and GND.
A3, B3 SW Power Drain connection for internal NMOS and synchronous PMOS switches.
A4, B4 GND Ground Ground
B1 LED2 Output High-side current source output for flash LED
C1 LEDI/NTC Power Configurable as a high-side current source output for indicator LED or comparator input for LED temperature sensing.
C2 TX1/TORCH/ GPIO1 Input/Output Configurable as a dual-polarity rf power amplifier synchronization input, an interrupt output, or as a general purpose logic I/O. This pin has an internal 300-kΩ pulldown to GND.
C3 STROBE Input Active high hardware flash enable. Drive STROBE high to turn on the flash pulse. This pin has an internal 300-kΩ pulldown to GND.
C4 IN Power Input voltage connection. Connect IN to the input supply, and bypass to GND with a minimum 10-µF ceramic capacitor.
D1 TX2/INT/GPIO2 Input/Output Configurable as a dual-polarity power amplifier synchronization Input, an Interrupt Output, or as a general purpose logic I/O. This pin has an internal 300-kΩ pulldown to GND.
D2 SDA Input/Output Serial data input/output. High impedance in shutdown or in power down.
D3 SCL Input Serial clock input. High impedance in shutdown or in power down.
D4 HWEN Input Logic high hardware enable. HWEN is a high-impedance input and is normally connected with an external pullup resistor to a logic high voltage.