LP5012 Drivers Datasheet

LP5012 Datasheet, PDF, Equivalent


Part Number

LP5012

Description

12-Bit PWM Ultra-low Quiescent Current I2C RGB LED Drivers

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download LP5012 Datasheet


LP5012
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LP5009, LP5012
SLVSEH2A – MAY 2019 – REVISED JULY 2019
LP50xx 9-, 12-Channel, 12-Bit PWM Ultra-low Quiescent Current
I2C RGB LED Drivers
1 Features
1 Operating voltage range:
– VCC range: 2.7 V to 5.5 V
– EN, SDA, and SCL pins compatible with
1.8-V, 3.3-V, and 5-V power rails
– Output maximum voltage: 6 V
• 12 Constant-current sinks with high precision
– 25.5 mA Maximum per channel with VCC in full
range
– 35 mA Maximum per channel when VCC 3.3
V
– Device-to-device error: ±5%; channel-to-
channel error: ±5%
• Ultra-low quiescent current:
– Shutdown mode: 1 µA (maximum) with EN low
– Power-saving mode: 10 µA (typical) with EN
high and all LEDs off for > 30 ms
• Integrated 12-bit, 29-kHz 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 400-kHz fast-mode I2C speed
2 Applications
LED lighting, indicator lights, and fun lights for:
• Smart speaker (with voice assistant)
• Smart home appliances
• Video doorbell
• Electronic smart lock
• Smoke and heat detector
• STB and DVR
• Smart router
• Handheld device
3 Description
In smart homes and other applications that use
human-machine-interaction, high-performance RGB
LED drivers are required. LED animation effects such
as flashing, breathing and chasing that greatly
improves user experience, and minimal system noise
is essential.
The LP50xx device is an 9- or 12-channel constant
current sink LED driver. The LP50xx device includes
integrated color mixing and brightness control, and
pre-configuration simplifies the software coding
process. Integrated 12-bit, 29-kHz PWM generators
for each channel enable smooth, vivid color for LEDs,
and eliminate audible noise.
PART NUMBER
LP5009
LP5012
Device Information(1)
PACKAGE
BODY SIZE (NOM)
WQFN (20)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
VMCU
VCC
CVCC
MCU
CVCAP
RIREF
EN
SDA
SCL
ADDR0
ADDR1
VCAP
VCC
LP5012
OUT0
OUT1
OUT2
OUT09
IREF
GND
OUT10
OUT11
VLED
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

LP5012
LP5009, LP5012
SLVSEH2A – MAY 2019 – REVISED JULY 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description (continued)......................................... 3
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 6
7.1 Absolute Maximum Ratings ...................................... 6
7.2 ESD Ratings.............................................................. 6
7.3 Recommended Operating Conditions....................... 6
7.4 Thermal Information .................................................. 6
7.5 Electrical Characteristics........................................... 7
7.6 Timing Characteristics............................................... 8
7.7 Typical Characteristics .............................................. 9
8 Detailed Description ............................................ 11
8.1 Overview ................................................................. 11
8.2 Functional Block Diagram ....................................... 11
8.3 Feature Description................................................. 11
8.4 Device Functional Modes........................................ 17
8.5 Programming .......................................................... 18
8.6 Register Maps ........................................................ 22
9 Application and Implementation ........................ 33
9.1 Application Information............................................ 33
9.2 Typical Application ................................................. 33
10 Power Supply Recommendations ..................... 35
11 Layout................................................................... 35
11.1 Layout Guidelines ................................................. 35
11.2 Layout Examples................................................... 36
12 Device and Documentation Support ................. 38
12.1 Related Links ........................................................ 38
12.2 Receiving Notification of Documentation Updates 38
12.3 Community Resources.......................................... 38
12.4 Trademarks ........................................................... 38
12.5 Electrostatic Discharge Caution ............................ 38
12.6 Glossary ................................................................ 38
13 Mechanical, Packaging, and Orderable
Information ........................................................... 38
4 Revision History
Changes from Original (May 2019) to Revision A
Page
• Changed from Advance Information to Production Data ....................................................................................................... 1
2 Submit Documentation Feedback
Product Folder Links: LP5009 LP5012
Copyright © 2019, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity LP5009, LP5012 SLVSEH2A – MAY 2019 – REVISED JULY 2019 LP50xx 9-, 12-Channel, 12-Bit PWM Ultra-low Quiesc ent Current I2C RGB LED Drivers 1 Feat ures •1 Operating voltage range: – VCC range: 2.7 V to 5.5 V – EN, SDA, and SCL pins compatible with 1.8-V, 3.3 -V, and 5-V power rails – Output maxi mum voltage: 6 V • 12 Constant-curren t sinks with high precision – 25.5 mA Maximum per channel with VCC in full r ange – 35 mA Maximum per channel when VCC ≥ 3.3 V – Device-to-device err or: ±5%; channel-tochannel error: ±5% • Ultra-low quiescent current: – S hutdown mode: 1 µA (maximum) with EN l ow – Power-saving mode: 10 µA (typic al) with EN high and all LEDs off for > 30 ms • Integrated 12-bit, 29-kHz PW M generator for each channel: – Indep endent color-mixing register per channe l – Independent brightness-control re gister per RGB LED module – Optional logarithmic- or linear-scale brightness control – Integrated 3-p.
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