EEWORLDEEWORLDEEWORLD

Part Number

Search

MIC2289-34YML

Description
2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size81KB,9 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
Download Datasheet Parametric Compare View All

MIC2289-34YML Overview

2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP

MIC2289-34YML Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
package instructionHVSON,
Reach Compliance Codecompli
ECCN codeEAR99
data entry modeSERIAL
Interface integrated circuit typeLED DISPLAY DRIVER
JESD-30 codeS-XDSO-N8
JESD-609 codee3
length2 mm
Humidity sensitivity level1
Multiplex display functionNO
Number of functions1
Number of segments1
Number of terminals8
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package body materialUNSPECIFIED
encapsulated codeHVSON
Package shapeSQUARE
Package formSMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height0.95 mm
Maximum supply voltage10 V
Minimum supply voltage2.5 V
Nominal supply voltage3.6 V
surface mountYES
Temperature levelAUTOMOTIVE
Terminal surfaceMATTE TIN
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width2 mm
minfmax1.35 MHz
Base Number Matches1
MIC2289
Micrel
MIC2289
2mm
×
2mm White LED Driver
with Internal Schottky Diode and OVP
General Description
The MIC2289 is a PWM (pulse width modulated), boost-
switching regulator that is optimized for constant-current
white LED driver applications. The MIC2289 features an
internal Schottky diode and three levels of output overvoltage
protection providing a small size and efficient DC/DC solution
that requires only four external components.
To optimize efficiency, the feedback voltage is set to only
95mV. This reduces power dissipation in the current set
resistor and allows the lowest total output voltage, hence
minimal current draw from the battery.
The MIC2289 implements a constant frequency 1.2MHz
PWM control scheme. The high frequency, PWM operation
saves board space by reducing external component sizes.
The added benefit of the constant frequency PWM scheme in
caparison to varible frequency is much lower noise and input
ripple injected to the input power source.
The MIC2289 clamps the output voltage in case of open LED
conditions, protecting itself and the output capacitor. The
MIC2289 is available with three output OVP options of 15V,
24V, and 34V. The different OVP options allows the use of
the smallest possible output capacitor with the appropriate
voltage rating for a given application.
The MIC2289 is available in a 2mm
×
2mm 8-pin MLF™
package and has a junction temperature range of –40°C to
+125°C.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
Features
2.5V to 10V input voltage
Output voltage up to 34V
Internal Schottky diode
15V, 24V, 34V output OVP options
1.2 MHz PWM operation
Over 500mA switch current
95mV feedback voltage
<1% line and load regulation
<1mA shutdown current
Overtemperature protection
UVLO
2mm
×
2mm 8-pin MLF™ package
–40
°
C to +125
°
C junction temperature range
Applications
• White LED driver for backlighting
Cell phones
PDAs
GPS systems
Digital cameras
MP3 players
IP phones
• LED flashlights
• Constant current power supplies
Typical Application
3-Series LED Efficiency
10µH
82
80
EFFICIENCY (%)
MIC2289-15BML
1-Cell
Li Ion
VIN
1µF
OUT
EN
GND
6.3Ω
FB
95mV
SW
0.22µF/16V
78
76
74
72
70
0
V
IN
=3.6V
5
10
15
I
OUT
(mA)
20
25
3-Series White LED Driver
Micro
LeadFrame and MLF are trademarks of Amkor Technology, Inc.
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
August, 2004
1
M9999-081104

MIC2289-34YML Related Products

MIC2289-34YML MIC2289 MIC2289-15BML MIC2289-15YML MIC2289-24BML MIC2289-24YML MIC2289-34BML
Description 2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP 2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP 2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP 2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP 2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP 2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP 2mm 】 2mm White LED Driver with Internal Schottky Diode and OVP
Interconnection between chip and PCB
Pentium IVs and high-speed chips with lots of input/output interconnects are now available. The chips themselves are reliable and capable of processing at speeds up to 1 GHz. The excitement at the rec...
jamieyang PCB Design
How to set pause in c51?
I want to pause the timer, how do I write the pause statement? How do I achieve it? Thanks for your help....
gaohuating 51mcu
Do you know how to save power in RTOS applications?
Do you know how much energy you can save by using one line of code in the idle task? WHIS, the provider of the commercial version of FreeRTOS, OpenRTOS, and the secure version SAFERTOS, created a basi...
MamoYU Embedded System
About the problem of not being able to see controls in GroupBox
I put several controls in a GROUPBOX, but when I run the program, I can only see the group box but not the controls. However, if I put the controls first and then the group box, I can see the controls...
藤堂香澄 Embedded System
The problem of lower yield strength
Our company makes testing machines. The picture above is a picture of determining the upper yield strength and the lower yield strength. 23 is the upper yield strength and 24 is the lower yield streng...
chenbingjy stm32/stm8
How to implement hot-swap of USB devices under Linux
My Linux version is 2.4.27. The platform is ARM chip AT91RM9200. The total Flash is only 16M. I want to implement hot-swap of USB disk. Now the system can detect USB disk when it is started with USB d...
ddh19 Linux and Android

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2120  2003  1527  2044  1041  43  41  31  42  21 
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