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MIC2293-15BML

Description
High Frequency PWM White LED Drivers with Internal Schottky Diode and OVP
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size370KB,9 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Download Datasheet Parametric View All

MIC2293-15BML Overview

High Frequency PWM White LED Drivers with Internal Schottky Diode and OVP

MIC2293-15BML Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Parts packaging codeDFN
package instructionHVSON, SOLCC8,.08,20
Contacts8
Manufacturer packaging codeMLF
Reach Compliance Codecompli
Interface integrated circuit typeLED DISPLAY DRIVER
JESD-30 codeS-PDSO-N8
JESD-609 codee0
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 materialPLASTIC/EPOXY
encapsulated codeHVSON
Encapsulate equivalent codeSOLCC8,.08,20
Package shapeSQUARE
Package formSMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)240
power supply3.6 V
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 surfaceTin/Lead (Sn80Pb20)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width2 mm
Base Number Matches1
MIC2292/93
Micrel, Inc.
MIC2292/93
High Frequency PWM White LED Drivers with
Internal Schottky Diode and OVP
General Description
The MIC2292 and MIC2293 are high frequency, Pulse Width
Modulator (PWM) boost regulators optimized for constant-
current, white LED driver applications. Because of their
constant PWM switching frequencies of 1.6MHz and 2MHz,
respectively, the MIC2292/93 can use the smallest external
components, allowing designers to avoid sensitive IF bands
in their RF applications.
The products feature an internal Schottky diode and two
levels of output overvoltage protection allowing a small size
and efficient DC/DC solution that requires only four external
components.
The 2.5V to 10V input voltage range of MIC2292/3
allows direct operation from 1- and 2-cell Li Ion as well as
3- to 4-cell NiCad/NiMH/Alkaline batteries. The MIC2292/3
products are available in a small size 2mm
×
2mm 8-lead
MLF™ package and have 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
1.6MHz PWM operation (MIC2292)
2.0MHz PWM operation (MIC2293)
Stable with ceramic capacitors
15V and 34V output overvoltage protection options
500mA switch current rating
95mV feedback voltage
<1% line and load regulation
<1µA shutdown current
Over-temperature protection
UVLO
8-lead (2mm
×
2mm) 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
• Constant current power supplies
Typical Application
15µH
10µH
MIC2292-15BML
Li Ion
1µF
MIC2293-15BML
0.22µF
16V
Li Ion
1µF
VIN
EN
SW
VIN
EN
SW
OUT
FB
GND
95mV
6.3Ω
OUT
FB
GND
95mV
6.3Ω
0.22µF
16V
1.6MHz PWM White LED Driver with 15V OVP
2MHz PWM White LED Driver with 15V OVP
MLF and
MicroLeadFrame
are trademarks of Amkor Technology, Inc.
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
July 2005
1
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