ZXLD1374_11 DIODES [Diodes Incorporated], ZXLD1374_11 Datasheet - Page 33

• Manufacturer Part Number: ZXLD1374_11
• Description: 60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST
• Manufacturer: DIODES [Diodes Incorporated]

ZXLD1374
Document number: DS35032 Rev. 2 - 2
Applications Examples
350mA Boost LED diver
In this application example,
ZXLD1374 is connected as a
Boost
schematic and parts list shown
below. The LED driver is able to
deliver 350mA of LED current
into 12 high brightness LED
with input voltage ranged from
16V to 28V.
Overall high efficiency of 92%+
make it ideal for applications
likes solar LED street lighting
and general LED illuminations.
Bill of Material
Typical Performance
100%
Ref No.
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
C3 C4
R1 R2
U1
Q1
D1
C1
C2
R3
R4
R5
Z1
L1
16
LED
18
Efficiency vs Input Voltage
Figure 56. Efficiency
driver
20
51V 410mW Zener
100V 3A Schottky
4.7µF 100V X7R
60V LED driver
60V MOSFET
1µF 50V X7R
Input Voltage
with
300mΩ 1%
22
100pF 50V
47µH 2.6A
120kΩ 1%
36kΩ 1%
Value
2.7kΩ
24
26
12 LED VF=37V
15 LED VF=47V
60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST
28
Figure 55. Application circuit of 350mA Boost LED driver
SMD 0805/0603
SMD 0805/0603
SMD 0805/0603
SMD 0805/0603
PDS3100-13
744771147
ZXLD1374
BZT52C51
www.diodes.com
SMD1210
SMD1206
SMD1206
2N7002A
30
Part No.
33 of 37
LED DRIVER CONVERTER WITH AEC-Q100
400
350
300
250
200
150
100
50
0
16
Wurth Electronik
Manufacturer
Diodes Inc
Diodes Inc
Diodes Inc
Diodes Inc
Generic
Generic
Generic
Generic
Generic
Generic
Figure 57. Line regulation
18
Diodes Incorporated
LED Current vs Input Voltage
A Product Line of
20
Input Voltage
22
24
26
12 LED VF=37V
15 LED VF=47V
© Diodes Incorporated
ZXLD1374
28
March 2011
30