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MIC3287-24YD6

Description
1.2MHz PWM White LED Driver with OVP in Thin SOT-23 and 2mm x 2mm MFL
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size313KB,9 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
Download Datasheet Parametric Compare View All

MIC3287-24YD6 Overview

1.2MHz PWM White LED Driver with OVP in Thin SOT-23 and 2mm x 2mm MFL

MIC3287-24YD6 Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMicrochip
Parts packaging codeTSSOP
package instructionLEAD FREE, MO-193, SOT-23, 6 PIN
Contacts6
Reach Compliance Codecompli
data entry modeSERIAL
Interface integrated circuit typeLED DISPLAY DRIVER
JESD-30 codeR-PDSO-G6
JESD-609 codee4
length2.9 mm
Humidity sensitivity level1
Multiplex display functionNO
Number of functions1
Number of segments3
Number of terminals6
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeVSSOP
Encapsulate equivalent codeTSOP6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply3/5 V
Certification statusNot Qualified
Maximum seat height1 mm
Maximum supply voltage5.5 V
Minimum supply voltage2.8 V
Nominal supply voltage3.6 V
surface mountYES
Temperature levelAUTOMOTIVE
Terminal surfaceNICKEL PALLADIUM GOLD
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width1.6 mm
minfmax1.4 MHz
Micrel, Inc
MIC3287
MIC3287
1.2MHz PWM White LED Driver with OVP in
Thin SOT-23 and 2mm x 2mm MFL
®
General Description
The MIC3287 is a 1.2MHz pulse width modulated (PWM)
step-up switching regulator that is optimized for constant cur-
rent white LED driving applications. With a switch current of
over 350mA, the MIC3287-24 drives a string of up to 4 white
LEDs in series, ensuring uniform brightness and eliminating
several ballast resistors.
The MIC3287 implements a constant frequency 1.2MHz PWM
current-mode control scheme. The high frequency PWM op-
eration saves board space by reducing external component
sizes. The added benefit of the constant frequency PWM
control scheme as opposed to variable frequency control
schemes is much lower noise and input ripple injected back
to the battery source. To optimize efficiency, the feedback
voltage is set to only 250mV. The MIC3287 is also available
with a maximum 24V over-voltage protection.
The MIC3287 is available in low profile Thin SOT-23 5-pin
and Thin SOT-23 6-pin packages. The MIC3287 has a junc-
tion temperature range of –40°C to +125°C.
All support documentation can be found on Micrel’s web site
at: www.micrel.com.
Features
2.8V to 6.5V Input Voltage
350mA Switch Current
1.2 MHz PWM Operation
250mV Feedback Voltage
Optional 24V Output Over-Voltage Protection (OVP)
Up to 36V Output Voltage without OVP
<1% Line and Load Regulation
<1µA Shutdown Current
Over-Temperature Protection
Under-Voltage Lock Out (UVLO)
Low Profile Thin SOT-23-5 Package Option
Low Profile Thin SOT-23-6 Package Option
8-pin 2mm x 2mm MLF
®
Package Option
–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
10µH
10µH
5
MIC3287YD5
VIN
EN
GND
2
1-Cell
Li Ion
1µF
SW
FB
1
MIC3287-24YD6
6
4
3
0.22µF
250mV
1-Cell
Li Ion
1µF
VIN
EN
SW
OVP
FB
GND
2
1
5
3
4
0.22µF
250mV
3-Series White LED Driver in Thin SOT-23-5
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
4-Series White LED Driver
with Output OVP in Thin SOT-23-6
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
April 2010
1
M9999-042910

MIC3287-24YD6 Related Products

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Description 1.2MHz PWM White LED Driver with OVP in Thin SOT-23 and 2mm x 2mm MFL 1.2MHz PWM White LED Driver with OVP in Thin SOT-23 and 2mm x 2mm MFL 1.2MHz PWM White LED Driver with OVP in Thin SOT-23 and 2mm x 2mm MFL 1.2MHz PWM White LED Driver with OVP in Thin SOT-23 and 2mm x 2mm MFL
Is it Rohs certified? conform to conform to - conform to
Maker Microchip Microchip - Microchip
package instruction LEAD FREE, MO-193, SOT-23, 6 PIN VSON, SOLCC8,.08,20 - LSSOP,
Reach Compliance Code compli compli - compli
data entry mode SERIAL SERIAL - SERIAL
Interface integrated circuit type LED DISPLAY DRIVER LED DISPLAY DRIVER - LED DISPLAY DRIVER
JESD-30 code R-PDSO-G6 S-XDSO-N8 - R-PDSO-G5
JESD-609 code e4 e4 - e4
length 2.9 mm 2 mm - 2.9 mm
Humidity sensitivity level 1 1 - 1
Multiplex display function NO NO - NO
Number of functions 1 1 - 1
Number of segments 3 4 - 3
Number of terminals 6 8 - 5
Maximum operating temperature 125 °C 125 °C - 125 °C
Minimum operating temperature -40 °C -40 °C - -40 °C
Package body material PLASTIC/EPOXY UNSPECIFIED - PLASTIC/EPOXY
encapsulated code VSSOP VSON - LSSOP
Package shape RECTANGULAR SQUARE - RECTANGULAR
Package form SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH SMALL OUTLINE, VERY THIN PROFILE - SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 260 260 - 260
Certification status Not Qualified Not Qualified - Not Qualified
Maximum seat height 1 mm 0.95 mm - 1.45 mm
Maximum supply voltage 5.5 V 5.5 V - 5.5 V
Minimum supply voltage 2.8 V 2.8 V - 2.8 V
Nominal supply voltage 3.6 V 3.6 V - 3.6 V
surface mount YES YES - YES
Temperature level AUTOMOTIVE AUTOMOTIVE - AUTOMOTIVE
Terminal surface NICKEL PALLADIUM GOLD NICKEL PALLADIUM GOLD - NICKEL PALLADIUM GOLD
Terminal form GULL WING NO LEAD - GULL WING
Terminal pitch 0.95 mm 0.5 mm - 0.95 mm
Terminal location DUAL DUAL - DUAL
Maximum time at peak reflow temperature 40 40 - 40
width 1.6 mm 2 mm - 1.6 mm
minfmax 1.4 MHz 1.4 MHz - 1.4 MHz
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