ZXLD1370EST16TC Diodes Inc, ZXLD1370EST16TC Datasheet - Page 18
ZXLD1370EST16TC
Manufacturer Part Number
ZXLD1370EST16TC
Description
LED Drivers 6V TO 60V 11uA
Manufacturer
Diodes Inc
Datasheet
1.ZXLD1370EST16TC.pdf
(36 pages)
Specifications of ZXLD1370EST16TC
High Level Output Current
18 mA
Operating Supply Voltage
6 V to 60 V
Maximum Supply Current
11 uA
Maximum Operating Temperature
+ 125 C
Package / Case
TSSOP-16 EP
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ZXLD1370EST16TC
Manufacturer:
MICROCHIP
Quantity:
2 000
ZXLD1370
Document number: DS32165 Rev. 4 - 2
Applications Information
For example, in a Buck-bust configuration (VIN =10-18V and 4 LEDs), with a load current of 350mA; if the target frequency
is around 400kHz, the Ideal inductor size is L= 33uH. The same size of inductor can be used if the target frequency is higher
than 500kHz driving 6LEDs with a current of 350mA from a VIN =12-24V.
In the case of the Boost topology, the following graphs guide the designer to select the inductor for a target frequency of
400kHz (figure 25) or higher than 500kHz (figure 26).
15
13
11
9
7
5
3
1
Figure 24. 350mA Buck-Boost mode inductor selection for target frequency > 500kHz
15
13
11
0
9
7
5
3
1
0
Figure 25. 350mA Boost mode inductor selection for target frequency 400kHz
L=22µH
L=22µH
10
10
(Continued)
ZXLD1370 Buck-Boost Mode 350mA Minimum Recommended Inductor
ZXLD1370 Boost Mode 350mA Minimum Recommended Inductor
L=33µH
L=33µH
20
20
Target Switching Frequency - 400kHz
Target Switching Frequency > 500kHz
L=47µH
www.diodes.com
Supply Voltage (V)
Supply Voltage (V)
18 of 36
L=47µH
30
30
40
40
Diodes Incorporated
A Product Line of
50
50
60
© Diodes Incorporated
ZXLD1370
60
March 2011