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ZXLD1374 Datasheet(PDF) 4 Page - Diodes Incorporated

Part # ZXLD1374
Description  60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST
PDF  37 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

ZXLD1374 Datasheet(HTML) 4 Page - Diodes Incorporated

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ZXLD1374
60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST
LED DRIVER CONVERTER WITH AEC-Q100
ZXLD1374
Document number: DS35032 Rev. 2 - 2
4 of 37
www.diodes.com
March 2011
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Recommended Operating Conditions
Symbol
Parameter
Performance/Comment
Min
Max
Unit
VIN
Input supply voltage range
Normal operation
8
60
V
Functional (Note 5)
6.3
VAUX
Auxiliary supply voltage range (Note 6)
Normal operation
8
60
V
Functional
6.3
VSENSE Differential input voltage
VVIN-VISM, with 0 ≤ VADJ ≤ 2.5
0
450
mV
VLX
Low side switch output voltage
60
V
ILX
Low side switch continuous output current
1.5
A
VADJ
External dc control voltage applied to ADJ
pin to adjust output current
DC brightness control mode
from 10% to 200%
0.125
2.5
V
ISTATUS Status pin output current
100
µA
IREF
Reference external load current
REF sourcing current
1
mA
fSW
Recommended switching frequency range (Note 7)
300
1000
kHz
VTADJ Temperature adjustment (TADJ) input voltage range
0
VREF
V
fPWM
Recommended PWM dimming frequency range
To maintain 1000:1 resolution
100
500
Hz
To maintain 200:1 resolution
100
1000
Hz
tPWMH/L PWM pulse width in dimming mode
PWM input high or low
0.005
10
ms
VPWMH PWM pin high level input voltage
2
5.5
V
VPWML PWM pin low level input voltage
0
0.4
V
TJ
Operating Junction Temperature Range
-40
125
°C
GI
Gain setting ratio for Boost and Buck-boost modes
Ratio= VGI/VADJ
0.20
0.50
Notes:
5. The functional range of VIN is the voltage range over which the device will function. Output current and device parameters may deviate from their
normal values for VIN and VAUX voltages between 6.3V and 8V, depending upon load and conditions.
6. VAUX can be driven from a voltage higher than VIN to provide higher efficiency at low VIN voltages, but to avoid false operation; a voltage should not
be applied to VAUX in the absence of a voltage at VIN.
7. The device contains circuitry to control the switching frequency to approximately 400kHz. The maximum and minimum operating frequency is not
tested in production.



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