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ML0308

Minilogic Device
Part Number ML0308
Manufacturer Minilogic Device
Description Backlight LED Boost Converter
Published Oct 12, 2012
Detailed Description Preliminary ML0308 ML0308 Backlight LED Boost Converter The ML0308 is a step-up DC-DC converter specifically designed t...
Datasheet PDF File ML0308 PDF File

ML0308
ML0308

Overview
Preliminary ML0308 ML0308 Backlight LED Boost Converter The ML0308 is a step-up DC-DC converter specifically designed to drive up to four white LEDs in series from a single lithium-ion cell.
The device provides regulated and inherently matched current to the LEDs with additional functions: automatic soft-start, output overvoltage protection, ON/OFF and dimming control.
The ML0308 switches at 1.
0 MHz, featuring the use of tiny external components.
PACKAGE INFORMATION Features z Inherently-matched LED current z Drives up to four white LEDs from 3.
6V supply z Automatic soft-start z Output overvoltage protection z High efficiency Applications z z LED backlighting with dimming control High efficiency step-up converter MARKING DIAGRAM www.
DataSheet.
net/ Figure 1: Typical application circuit Datasheet pdf - http://www.
DataSheet4U.
co.
kr/ Preliminary ML0308 ABSOLUTE MAXIMUM RATINGS Rating Input voltage Output voltage Operating temperature Storage temperature ELECTICAL CHARACTISTICS PARAMETER Minimum Operating Voltage Maximum Operating Voltage Feedback Voltage Supply Current Switching EN Pin = 0V EN Pin HIGH Threshold EN Pin LOW Threshold Switch Frequency Duty Ratio MOSFET Current Limit MOSFET ON Resistance MOSFET Leakage Current Overvoltage Limit Soft-start Time VIN =3.
0V, IDS = 100mA VIN =5.
5V 16.
7 200 1.
0 17.
5 0.
5 0.
7 73 180 1.
0 75 250 1.
53 77 0°C to 85°C 185 200 Pin VIN SW EN FB Value 6.
0 18 10 VIN+0.
3 -30 to 80 -40 to 125 Unit V V V V °C °C All specifications apply under the condition VIN = 3.
0V and TA = 25°C unless specified.
The ˙ donates the specifications which apply over the full operating temperature range CONDITIONS MIN 3.
0 TYP MAX UNITS V 5.
5 215 V mV 100 www.
DataSheet.
net/ 150 0.
1 1.
2 uA uA V V MHz % mA ˙ ˙ Ω uA V us Datasheet pdf - http://www.
DataSheet4U.
co.
kr/ Preliminary ML0308 PIN FUNCTION DESCRIPTION Pin SW (Pin 1) Description This pin is the power side of the external inductor and must be connected to the external Schottky diode.
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