SNVS598B
August 2010 – March 2018
LM3535
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Typical Application
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Charge Pump
7.3.2
Diode Current Sinks
7.3.3
Ambient Light Sensing (ALS) And Interrupt
7.3.4
Dynamic Backlight Control Input (PWM Pin)
7.3.5
LED Forward Voltage Monitoring
7.3.6
Configurable Gain Transition Delay
7.3.7
Hardware Enable (HWEN)
7.4
Device Functional Modes
7.4.1
Shutdown
7.4.2
Standby
7.4.3
Active Mode
7.5
Programming
7.5.1
I2C Compatible Interface
7.5.1.1
Data Validity
7.5.1.2
Start and Stop Conditions
7.5.1.3
Transferring Data
7.5.1.4
I2C Compatible Chip Address
7.5.1.5
Internal Registers of LM3535
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Ambient Light Sensing
8.2.2.1.1
Ambient Light Sensor Block
8.2.2.1.2
ALS Operation
8.2.2.1.2.1
ALS Configuration Example
8.2.2.1.3
ALS Averaging Time
8.2.2.1.4
Ambient Light Current Control + PWM
8.2.2.1.4.1
ALS + PWM Example
8.2.2.2
LED Configurations
8.2.2.3
Maximum Output Current, Maximum LED Voltage, Minimum Input Voltage
8.2.2.3.1
Total Output Current Capability
8.2.2.4
Parallel Connected and Unused Outputs
8.2.2.5
Power Efficiency
8.2.2.6
Power Dissipation
8.2.2.7
Thermal Protection
8.2.2.8
Capacitor Selection
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Receiving Notification of Documentation Updates
11.2
Community Resources
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
YFQ|20
MXBG174
Thermal pad, mechanical data (Package|Pins)
Orderable Information
snvs598b_oa
snvs598b_pm
8.1
Application Information