EEWORLDEEWORLDEEWORLD

Part Number

Search

LTC3219EUD#PBF

Description
LED Driver 9 Segment 2100uA Supply Current 20-Pin QFN EP Tube
File Size207KB,20 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC3219EUD#PBF Overview

LED Driver 9 Segment 2100uA Supply Current 20-Pin QFN EP Tube

LTC3219EUD#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Number of Segments9
Minimum Operating Supply Voltage (V)2.9
Maximum Operating Supply Voltage (V)5.5
Typical Operating Supply Voltage (V)3.3|5
Maximum Supply Current (uA)2100(Typ)
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
PackagingTube
Standard Package NameQFN
Pin Count20
Supplier PackageQFN EP
MountingSurface Mount
Package Height0.75(Max)
Package Length3
Package Width3
PCB changed20
Lead ShapeNo Lead
LTC3219
250mA Universal
Nine Channel LED Driver
FEATURES
DESCRIPTION
The LTC
®
3219 is a highly integrated multidisplay LED
driver. The device contains a high efficiency, low noise
charge pump to provide power to nine universal LED
current sources. The LTC3219 requires only five small
ceramic capacitors to form a complete LED power supply
and current controller.
The maximum display currents are set by an internal pre-
cision current reference. Independent dimming, On/Off,
blinking and gradation control for all current sources is
achieved via the I
2
C serial interface. 6-bit linear DACs are
available for adjusting brightness levels for each universal
LED current source.
The LTC3219 charge pump optimizes efficiency based on
the voltage across the LED current sources. The device
powers up in 1x mode and will automatically switch to
boost mode whenever any enabled LED current source
begins to enter dropout. The first dropout switches the
IC into 1.5x mode and a subsequent dropout switches
the LTC3219 into 2x mode. The part resets to 1x mode
whenever a data register is updated via the I
2
C port.
, LT LTC and LTM are registered trademarks of Linear Technology Corporation.
,
All other trademarks are the property of their respective owners.
*Protected by U.S. Patents, including 6411531.
Multimode Charge Pump Provides Up to 91%
Efficiency
Slew Limited Switching Reduces Conducted and
Radiated Noise (EMI)
Up to 250mA Total Output Current
Nine 28mA Universal Current Sources with 64-Step
Linear Brightness Control
Independent On/Off, Brightness Level, Blinking and
Gradation Control for Each Current Source Using
2-Wire I
2
C
TM
Interface
Internal Current Reference
Configurable ENU Pin for Asynchronous LED On/Off
Control
Low Noise Charge Pump Operates in 1x, 1.5x or 2x
Mode for Optimal Efficiency*
Automatic or Forced Mode Switching
Internal Soft-Start Limits Inrush Current
Short-Circuit/Thermal Protection
3mm
×
3mm 20-Lead QFN Plastic Package
APPLICATIONS
Video Phones with QVGA+ Displays
TYPICAL APPLICATION
4-LED Main, 2-LED Sub and RGB
C2
1μF
C3
1μF
C1P C1M C2P C2M
V
BAT
C1
2.2μF
2
V
BAT
LTC3219
SCL/SDA
DV
CC
0.1μF
ENABLE DISABLE
ENU
GND
ULED1-9
9
CPO
C4
2.2μF
MAIN
SUB
RGB
I
2
C
DV
CC
3219 TA01a
3219fa
1

LTC3219EUD#PBF Related Products

LTC3219EUD#PBF LTC3219EUD#TRPBF
Description LED Driver 9 Segment 2100uA Supply Current 20-Pin QFN EP Tube LED Driver 9 Segment 2100uA Supply Current 20-Pin QFN EP T/R
EU restricts the use of certain hazardous substances Compliant Compliant
ECCN (US) EAR99 EAR99
Part Status Active Active
HTS 8542.39.00.01 8542.39.00.01
Number of Segments 9 9
Minimum Operating Supply Voltage (V) 2.9 2.9
Maximum Operating Supply Voltage (V) 5.5 5.5
Typical Operating Supply Voltage (V) 3.3|5 3.3|5
Maximum Supply Current (uA) 2100(Typ) 2100(Typ)
Minimum Operating Temperature (°C) -40 -40
Maximum Operating Temperature (°C) 85 85
Supplier Temperature Grade Extended Extended
Packaging Tube Tape and Reel
Standard Package Name QFN QFN
Pin Count 20 20
Supplier Package QFN EP QFN EP
Mounting Surface Mount Surface Mount
Package Height 0.75(Max) 0.75(Max)
Package Length 3 3
Package Width 3 3
PCB changed 20 20
Lead Shape No Lead No Lead
STM32 serial port problem
I encountered a puzzled problem: I am using USART1 for the serial port of STM32. When initializing the pins, I need to add an initialization operation for other pins before initializing pins 9 and 10....
sinianhuan stm32/stm8
Who can help me design a circuit for determining the same-name terminals of a toroidal transformer?
Hey guys, I have a toroidal transformer with a primary-to-secondary ratio of 8:1, and a small oscillating magnetic ring with a primary-to-secondary ratio of 1:1. Can anyone help me design a simple cir...
shenbian Analog electronics
Design of low power charger
Design of low power charger Abstract: This paper introduces an automatic charger circuit for mobile phones and electric bicycles. It eliminates the complex IC circuit and its peripheral circuits, and ...
zbz0529 Analog electronics
ADM3052 various types of CAN transceiver bus side with linear power supply
ADM3052 various types of CAN transceiver bus side with linear power supply [p=16, null, left][color=rgb(0, 0, 0)][font=Arial, Helvetica, sans-serif][size=12px] The ADM3052 is an isolated controller ar...
damiaa ADI Reference Circuit
MSP432E401Y SimpleLink Ethernet Microcontroller
The MSP432E401Y microcontroller integrates a large number of rich communication features to enable new highly connected designs and achieve important real-time control between performance and power co...
灞波儿奔 Microcontroller MCU
[AB32VG1 Development Board Review] Getting to Know the Development Board
[i=s]This post was last edited by jinglixixi on 2021-8-7 12:21[/i]The AB32VG1 development board is a RISC-V architecture-based development board launched by Bluexun. Its overall configuration is shown...
jinglixixi Domestic Chip Exchange

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1001  7  1067  1987  989  21  1  22  40  20 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号