LX1993 datasheet(10/12 Pages) MICROSEMI

Part #	LX1993

Description	High Efficiency LED Driver

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Manufacturer	MICROSEMI [Microsemi Corporation]

Direct Link	http://www.microsemi.com

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Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 10

Copyright

Rev. 1.0b, 2005-03-03

LX1993

High Efficiency LED Driver

PRODUCTION

I N T E GRA T ED

PR ODUC T S

CHARACT ER I S TI C CURVES

1.00

1.10

1.20

1.30

1.40

025

50

75

Temperature oC

Figure 11: RDS(on) vs. Temperature

Condition: VIN = 3.0V; ISW = 10mA

0.80

0.90

1.00

1.10

025

50

75

Temperature oC

Figure 12: RDS(on) vs. Temperature

Condition: VIN = 5.0V; ISW = 10mA

125.00

130.00

135.00

140.00

145.00

025

50

75

Temperature oC

Figure 13: IMIN versus Temperature.

Condition: VIN = 3.0V

3.00

4.00

5.00

6.00

7.00

025

50

75

Temperature oC

Figure 14: ICS versus Temperature.

Condition: VIN = 3.0V

Figure 15: Start-Up Waveforms.

Condition: VIN = 3.6V, CH1 = VOUT, CH2 = VSW, CH4 = IL

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