SLVSEB8C
October 2018 – July 2024
LP5018
,
LP5024
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Description (continued)
5
Pin Configuration and 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
Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
PWM Control for Each Channel
7.3.1.1
Independent Color Mixing Per RGB LED Module
7.3.1.2
Independent Intensity Control Per RGB LED Module
7.3.1.2.1
Intensity-Control Register Configuration
7.3.1.2.2
Logarithmic- or Linear-Scale Intensity Control
7.3.1.3
12-Bit, 29-kHz PWM Generator Per Channel
7.3.1.3.1
PWM Generator
7.3.1.4
PWM Phase-Shifting
7.3.2
LED Bank Control
7.3.3
Current Range Setting
7.3.4
Automatic Power-Save Mode
7.3.5
Protection Features
7.3.5.1
Thermal Shutdown
7.3.5.2
UVLO
7.4
Device Functional Modes
7.5
Programming
7.5.1
I2C 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 Slave Addressing
7.5.1.5
Control-Register Write Cycle
7.5.1.6
Control-Register Read Cycle
7.5.1.7
Auto-Increment Feature
7.6
Register Maps
7.6.1
DEVICE_CONFIG0 (Address = 0h) [reset = 0h]
7.6.2
DEVICE_CONFIG1 (Address = 1h) [reset = 3Ch]
7.6.3
LED_CONFIG0 (Address = 2h) [reset = 00h]
7.6.4
BANK_BRIGHTNESS (Address = 3h) [reset = FFh]
7.6.5
BANK_A_COLOR (Address = 4h) [reset = 00h]
7.6.6
BANK_B_COLOR (Address = 5h) [reset = 00h]
7.6.7
BANK_C_COLOR (Address = 6h) [reset = 00h]
7.6.8
LED0_BRIGHTNESS (Address = 7h) [reset = FFh]
7.6.9
LED1_BRIGHTNESS (Address = 8h) [reset = FFh]
7.6.10
LED2_BRIGHTNESS (Address = 9h) [reset = FFh]
7.6.11
LED3_BRIGHTNESS (Address = 0Ah) [reset = FFh]
7.6.12
LED4_BRIGHTNESS (Address = 0Bh) [reset = FFh]
7.6.13
LED5_BRIGHTNESS (Address = 0Ch) [reset = FFh]
7.6.14
LED6_BRIGHTNESS (Address = 0Dh) [reset = FFh]
7.6.15
LED7_BRIGHTNESS (Address = 0Eh) [reset = FFh]
7.6.16
OUT0_COLOR (Address = 0Fh) [reset = 00h]
7.6.17
OUT1_COLOR (Address = 10h) [reset = 00h]
7.6.18
OUT2_COLOR (Address = 11h) [reset = 00h]
7.6.19
OUT3_COLOR (Address = 12h) [reset = 00h]
7.6.20
OUT4_COLOR (Address = 13h) [reset = 00h]
7.6.21
OUT5_COLOR (Address = 14h) [reset = 00h]
7.6.22
OUT6_COLOR (Address = 15h) [reset = 00h]
7.6.23
OUT7_COLOR (Address = 16h) [reset = 00h]
7.6.24
OUT8_COLOR (Address = 17h) [reset = 00h]
7.6.25
OUT9_COLOR (Address = 18h) [reset = 00h]
7.6.26
OUT10_COLOR (Address = 19h) [reset = 00h]
7.6.27
OUT11_COLOR (Address = 1Ah) [reset = 00h]
7.6.28
OUT12_COLOR (Address = 1Bh) [reset = 00h]
7.6.29
OUT13_COLOR (Address = 1Ch) [reset = 00h]
7.6.30
OUT14_COLOR (Address = 1Dh) [reset = 00h]
7.6.31
OUT15_COLOR (Address = 1Eh) [reset = 00h]
7.6.32
OUT16_COLOR (Address = 1Fh) [reset = 00h]
7.6.33
OUT17_COLOR (Address = 20h) [reset = 00h]
7.6.34
OUT18_COLOR (Address = 21h) [reset = 00h]
7.6.35
OUT19_COLOR (Address = 22h) [reset = 00h]
7.6.36
OUT20_COLOR (Address = 23h) [reset = 00h]
7.6.37
OUT21_COLOR (Address = 24h) [reset = 00h]
7.6.38
OUT22_COLOR (Address = 25h) [reset = 00h]
7.6.39
OUT23_COLOR (Address = 26h) [reset = 00h]
7.6.40
RESET (Address = 27h) [reset = 00h]
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Examples
9
Device and Documentation Support
9.1
Related Links
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
1
Features
Operating voltage range:
V
CC
range: 2.7V to 5.5V
EN, SDA, and SCL pins compatible with
1.8V, 3.3V, and 5V power rails
Output maximum voltage: 6V
24 constant-current sinks with high precision
25.5mA maximum per channel with V
CC
in full range
35mA maximum per channel when V
CC
≥ 3.3V
Device-to-device error: ±7%; channel-to-channel error: ±7%
Ultralow quiescent current:
Shutdown mode: 1µA (maximum) with EN low
Power saving mode: 10µA (typical) with EN high and all LEDs off for > 30ms
Integrated 12-bit, 29kHz PWM generator for each channel:
Independent color-mixing register per channel
Independent brightness-control register per RGB LED module
Optional logarithmic- or linear-scale brightness control
Integrated 3-phase PWM-shifting scheme
3 programmable banks (R, G, B) for easy software control of each color
2 external hardware address pins allow connecting up to 4 devices
Broadcast slave address allows configuring multiple devices simultaneously
Auto-increment allows writing or reading consecutive registers within one transmission
Up to 400kHz fast-mode I
2
C speed