ZXLD1370_1103 DIODES [Diodes Incorporated], ZXLD1370_1103 Datasheet - Page 33

• Manufacturer Part Number: ZXLD1370_1103
• Description: 60V HIGH ACCURACY BUCK/BOOST/BUCK-BOOST LED DRIVER-CONTROLLER WITH AEC-Q100
• Manufacturer: DIODES [Diodes Incorporated]

ZXLD1370
Document number: DS32165 Rev. 4 - 2
Applications Information
Example 3:
700mA Buck-Boost LED driver
In this application example, the ZXLD1370 is connected as a buck-boost LED driver. The schematic and parts list are
shown below. The LED driver is able to deliver 700mA of LED current into 4 high-brightness LEDs with an input voltage
range of 7V to 20V.
Since the Buck-boost LED driver handles an input voltage range from below and above the total LED voltage, the versatile
input voltage range make it ideal for automotive lighting applications.
Typical Performance
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
16
18
Efficiency vs Input Voltage
Figure 44. Efficiency
20
22
Input Voltage
Figure 46. Application circuit - 700mA Buck-Boost LED driver
24
(Continued)
26
28
30
www.diodes.com
32
33 of 36
450
400
350
300
250
200
150
100
50
0
16
18
LED Current vs Input Voltage
Diodes Incorporated
Figure 45. Line regulation
A Product Line of
20
22
Input Voltage
24
26
© Diodes Incorporated
28
ZXLD1370
March 2011
30
32