SNVSC36
December 2021
LP5866
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Time-Multiplexing Matrix
8.3.2
Analog Dimming (Current Gain Control)
8.3.3
PWM Dimming
8.3.4
ON and OFF Control
8.3.5
Data Refresh Mode
8.3.6
Full Addressable SRAM
8.3.7
Protections and Diagnostics
8.4
Device Functional Modes
8.5
Programming
8.6
Register Maps
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Application
9.2.2
Design Requirements
9.2.3
Detailed Design Procedure
9.2.4
Program Procedure
9.2.5
Application Performance Plots
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Support Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RKP|40
MPQF261B
DBT|38
MPDS368A
Thermal pad, mechanical data (Package|Pins)
RKP|40
QFND309E
Orderable Information
snvsc36_oa
snvsc36_pm
1
Features
LED matrix topology:
18 constant current sinks with 6 scan switches for 108 LED dots
Configurable for 1 to 6 scan switches
Operating voltage range:
V
CC
/V
LED
range: 2.7 V to 5.5 V
Logic pins compatible with 1.8 V, 3.3 V, and 5 V
18 constant current sinks with high precision:
0.1 mA–50 mA per current sink when V
CC
≥ 3.3 V
Device-to-device error: ±3% when channel current = 50 mA
Channel-to-channel error: ±3% when channel current = 50 mA
Phase-shift for balanced transient power
Ultra-low power consumption:
Shutdown mode: I
CC
≤ 1 uA when EN = Low
Standby mode: I
CC
≤ 10 uA when EN = High and CHIP_EN = 0 (data retained)
Active Mode: I
CC
= 4.3 mA (typ.) when channel current = 5 mA
Flexible dimming options:
Individual ON and OFF control for each LED dot
Analog dimming (current gain control)
Global 3-bit Maximum Current (MC) setting for all LED dots
3 groups of 7-bit Color Current (CC) setting for red, green, and blue
Individual 8-bit Dot Current (DC) setting for each LED dot
PWM dimming with audible-noise-free frequency
Global 8-bit PWM dimming for all LED dots
3 programmable groups of 8-bit PWM dimming for LED dot arbitrary mapping
Individual 8-bit or 16-bit PWM dimming for each LED dot
Full addressable SRAM to minimize data traffic
Individual LED dot open and short detection
Deghosting and low brightness compensation
Interface options:
1-MHz (max.) I
2
C interface when IFS = Low
12-MHz (max.) SPI interface when IFS = High