ZXLD1370EST16TC Diodes Zetex, ZXLD1370EST16TC Datasheet - Page 23

• Manufacturer Part Number: ZXLD1370EST16TC
• Description: IC LED DRVR HIGH BRIGHT TSSOP-16
• Manufacturer: Diodes Zetex
• Type: HBLED Driverr

Specifications of ZXLD1370EST16TC

• Constant Current: *
• Constant Voltage: *
• Topology: *
• Number Of Outputs: *
• Internal Driver: *
• Type - Primary: *
• Type - Secondary: *
• Frequency: *
• Voltage - Supply: *
• Voltage - Output: *
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Operating Temperature: *
• Current - Output / Channel: *
• Internal Switch(s): No
• Efficiency: 95%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ZXLD1370EST16TCTR

ZXLD1370
Document number: DS32165 Rev. 4 - 2
Applications Information
INPUT CAPACITOR
The input capacitor can be calculated knowing the input voltage ripple ΔV
Buck
Boost
Buck-boost
The minimum RMS current for the output capacitor is calculated as follows:
Buck
Boost
Buck-boost
C
C
C
I
I
I
CIN
CIN
CIN
IN
IN
IN
=
=
=
−
−
−
RMS
RMS
RMS
f
8
D
f
SW
SW
f x
x
1 (
SW
D
=
=
x
=
−
x
Δ
I x
Δ
I
D
I
Δ
L I
LED
LED
L I
V
LED
x
V
)
IN
−
I x
Δ
IN
−
12
PP
V
PP
LED
−
−
x
x
IN
PP
PP
Dx
−
1 (
PP
−
D
1 (
D
−
)
D
(Continued)
)
Use D = 0.5 as worst case
Use D = D
use D=0.5 as worst case
Use D=D
MAX
www.diodes.com
MAX
as worst case
23 of 36
as worst case
IN-PP
as follows:
Diodes Incorporated
A Product Line of
© Diodes Incorporated
ZXLD1370
March 2011