MAP3242 Datasheet, PDF (1/22 Pages) MagnaChip Semiconductor. – 4-channel LED Driver for High Brightness LEDs

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Datasheet Version 1.1
Datasheet - MAP3242
4-channel LED Driver for High Brightness LEDs
General Description
Features
MAP3242 is a 4-channel LED driver optimized for
8.5V to 36V Input Voltage Range
LED backlight application targeting mid and large size
Drive up to 4 Channels
LCD module. MAP3242 uses the boost MOSFET
65V FB Pin Voltage
externally and 4-channel current sources internally for
0.8V Min Headroom Voltage @ 150mA
driving high brightness White LEDs.
240mA Output Current per Channel
MAP3242 has 65V absolute Max. rating FB pins and
±2.5% Current Accuracy
input voltage is ranged from 8.5V ~ 36V and max LED
Initial Open FB Detection Function
current is 240mA per channel.
Programmable Boost Switching Frequency
MAP3242 features internal soft-start and 2.5% LED
(100KHz ~ 500KHz)
current accuracy including matching between
LED Current Set by both
channels
PWM and External DC Voltage
MAP3242 has various protections like output over-
Boost Over Current Protection
voltage, adjustable LED short, LED open, open
Output Over Voltage Protection
schottky diode and UVLO.
Adjustable LED Short Protection
MAP3242 has initial open FB detection function to
LED Open Protection
not boost the output voltage to OVP level except LED
Schottky Diode Open Protection
open event.
UVLO
MAP3242 is available 28 leads HSOP, 20 leads SOIC
and E-TSSOP with Halogen-free (fully RoHS
compliant).
Applications
High Brightness white LED backlighting for LCD
TVs and monitors
1
General LED lighting applications
Ordering Information
Part Number
MAP3242SHRH
MAP3242SIRH
MAP3242TERH
Top
Marking
MAP3242
MAP3242
MAP3242
Typical Application
Ambient
Temperature Range
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
Package
28Leads HSOP
20Leads SOIC
20Leads E-TSSOP
RoHS Status
Halogen Free
Halogen Free
Halogen Free
Jun 13^th 2013