ZXLD1370_11 DIODES [Diodes Incorporated], ZXLD1370_11 Datasheet - Page 9

• Manufacturer Part Number: ZXLD1370_11
• Description: 60V HIGH ACCURACY BUCK/BOOST/BUCK-BOOST LED DRIVER CONTROLLER
• Manufacturer: DIODES [Diodes Incorporated]

ZXLD1370
Document number: DS32165 Rev. 3 - 2
Typical Characteristics – Boost mode – I
100%
0.400
0.350
0.300
0.250
0.200
0.150
0.100
0.050
0.000
95%
90%
85%
80%
75%
70%
65%
60%
500
450
400
350
300
250
200
150
100
50
6.5
6.5
6.5
T = 25°C
V
A
AU X
3 LEDs
10
10
10
= V
3 LEDs
3 LEDs
IN
13.5
13.5
13.5
4 LEDs
4 LEDs
4 LEDs
Figure 8: Frequency vs. Input Voltage & Number of LED
Figure 9: Efficiency vs. Input Voltage & Number of LED
17
17
17
Figure 7: I
6 LEDs
6 LEDs
6 LEDs
20.5
20.5
20.5
LED
www.diodes.com
Boosted voltage across
LEDs approaching VIN
vs. Input Voltage & Number of LED
24
24
8 LEDs
8 LEDs
24
Input Voltage (V)
8 LEDs
LED
Input Voltage (V)
Input Voltage (V)
9 of 35
= 350mA – R
27.5
27.5
27.5
10 LEDs
10 LEDs
10 LEDs
31
31
31
12 LEDs
12 LEDs
34.5
34.5
34.5
Diodes Incorporated
12 LEDs
S
A Product Line of
= 150mΩ – GI
38
38
38
14 LEDs
14 LEDs
14 LEDs
T = 25°C
V
41.5
41.5
41.5
A
AU X
= V
16 LEDs
IN
16 LEDs
T = 25°C
V
A
AU X
45
45
RATIO
45
16 LEDs
= V
© Diodes Incorporated
IN
ZXLD1370
February 2011
48.5
48.5
48.5
= 0.23