XRP7613IDBTR-F Datasheet, PDF (5/14 Pages) Exar Corporation – 1.2A 36V Step Down High Brightness LED Driver

XRP7613
1.2A 36V Step Down High Brightness LED Driver
TYPICAL PERFORMANCE CHARACTERISTICS
Fig. 4: Efficiency versus Input Voltage
120
ILED = 330mA
L = 47µH
115
110
105
1xLED
100 _2xLED
3xLED
95
0
10
20
30
40
V_IN (V)
Fig. 6: VSET versus Input Voltage at ILED=330mA
120
ILED = 1.1A
L = 47µH
115
110
105
100
95
0
10
20
30
40
V_IN (V)
Fig. 8: VSET versus Input Voltage at ILED=1.1A
Fig. 5: Efficiency versus Input Voltage
120
ILED = 770mA
L = 47µH
115
110
105
1xLED
100
2xLED _3xLED
95
0
10
20
30
40
V_IN (V)
Fig. 7: VSET versus Input Voltage at ILED=770mA
Fig. 9: LED Current versus EN/DIM Voltage
© 2012 Exar Corporation
5/13
Rev. 1.2.0