SNVS550E September   2009  – January 2017 LP5523

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  Charge Pump Electrical Characteristics
    7. 6.7  LED Driver Electrical Characteristics
    8. 6.8  LED Test Electrical Characteristics
    9. 6.9  Logic Interface Characteristics
    10. 6.10 Recommended External Clock Source Conditions
    11. 6.11 Serial Bus Timing Parameters (SDA, SCL)
    12. 6.12 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 Programming
      2. 7.3.2 LED Error Detection
      3. 7.3.3 Energy Efficiency
      4. 7.3.4 Temperature Compensation
      5. 7.3.5 Charge Pump Operational Description
        1. 7.3.5.1 Overview
        2. 7.3.5.2 Output Resistance
        3. 7.3.5.3 Controlling The Charge Pump
        4. 7.3.5.4 LED Forward Voltage Monitoring
        5. 7.3.5.5 Gain Change Hysteresis
      6. 7.3.6 LED Driver Operational Description
        1. 7.3.6.1 Overview
        2. 7.3.6.2 Powering LEDs
        3. 7.3.6.3 Controlling The High-Side LED Drivers
    4. 7.4 Device Functional Modes
      1. 7.4.1 Modes Of Operation
        1. 7.4.1.1 Automatic Power-Save Mode
        2. 7.4.1.2 PWM Power-Save Mode
    5. 7.5 Programming
      1. 7.5.1 I2C-Compatible Control Interface
        1. 7.5.1.1 Data Validity
        2. 7.5.1.2 Start and Stop Conditions
        3. 7.5.1.3 Transferring Data
        4. 7.5.1.4 I2C-Compatible Chip Address
          1. 7.5.1.4.1 Control Register Write Cycle
          2. 7.5.1.4.2 Control Register Read Cycle
          3. 7.5.1.4.3 Auto-Increment Feature
    6. 7.6 Register Maps
      1. 7.6.1 Register Set
      2. 7.6.2 Control Register Details
      3. 7.6.3 Instruction Set
      4. 7.6.4 LED Driver Instructions
        1. 7.6.4.1 Ramp
        2. 7.6.4.2 Ramp Instruction Application Example
        3. 7.6.4.3 Set_PWM
        4. 7.6.4.4 Wait
      5. 7.6.5 LED Mapping Instructions
      6. 7.6.6 Branch Instructions
      7. 7.6.7 Arithmetic Instructions
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Using Two LP5523 Devices in Same Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Recommended External Components
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Driving Haptic Feedback with LP5523
  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 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 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

YFQ Package
25-Pin DSBGA
Top View
LP5523 30043602.gif
YFQ Package
25-Pin DSBGA
Bottom View
LP5523 30043603.gif

Pin Functions(1)

PIN TYPE DESCRIPTION
NO. NAME
A1 D1 A Current source output 1
A2 D2 A Current source output 2
A3 VOUT A Charge pump output
A4 C2− A Flying capacitor 2 negative terminal
A5 C2+ A Flying capacitor 2 positive terminal
B1 D3 A Current source output 3
B2 D4 A Current source output 4
B3 ASEL1 I Serial interface address select input
B4 C1− A Flying capacitor 1 negative terminal
B5 C1+ A Flying capacitor 1 positive terminal
C1 D5 A Current source output 5
C2 D6 A Current source output 6
C3 ASEL0 I Serial interface address select input
C4 EN I Enable
C5 VDD P Input power supply
D1 D7 A Current source output 7 - powered from VDD
D2 D8 A Current source output 8 - powered from VDD
D3 INT OD/O Interrupt for microcontroller unit. Leave unconnected if not used
D4 CLK I 32 kHz clock input. Connect to ground if not used
D5 GND G Ground
E1 D9 A Current source output 9 - powered from VDD
E2 GPO O General purpose output. Leave unconnected if not used
E3 TRIG I/OD Trigger. Connect to ground if not used.
E4 SDA I/OD Serial interface data
E5 SCL I Serial interface clock
(1) A: Analog Pin G: Ground Pin P: Power Pin I: Input Pin I/O: Input/Output Pin O: Output Pin OD: Open Drain Pin