ZXLD1370_11 DIODES [Diodes Incorporated], ZXLD1370_11 Datasheet - Page 8

• 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 – Buck Mode – Rs = 300mΩ - L = 47µH - I
100%
0.740
0.735
0.730
0.725
0.720
0.715
1000
95%
90%
85%
80%
75%
70%
65%
60%
900
800
700
600
500
400
300
200
100
0
6.5
6.5
6.5
T = 25°C
V
A
AU X
2 LEDs
2 LEDs
T = 25°C
V
11
11
11
A
AU X
= V
2 LEDs
= V
IN
IN
15.5
15.5
15.5
3 LEDs
3 LEDs
3 LEDs
Figure 6: Efficiency vs. Input Voltage & Number of LED
Figure 5: Frequency ZXLD1370 - Buck Mode - L47 H
20
20
20
5 LEDs
Figure 4: I
5 LEDs
5 LEDs
24.5
24.5
24.5
7 LEDs
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LED
29
29
7 LEDs
29
7 LEDs
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
9 LEDs
8 of 35
vs. Input & Number of LED
33.5
33.5
33.5
9 LEDs
11 LEDs
9 LEDs
38
38
38
11 LEDs
13 LEDs
42.5
11 LEDs
42.5
42.5
Diodes Incorporated
A Product Line of
T = 25°C
V
A
AUX
13 LEDs
47
47
47
15 LEDs
μ
= V
13 LEDs
LED
IN
51.5
51.5
51.5
= 750mA
15 LEDs
15 LEDs
56
56
56
© Diodes Incorporated
ZXLD1370
February 2011
60.5
60.5
60.5