ZXLD1371EST16TC Diodes Inc. / Zetex, ZXLD1371EST16TC Datasheet - Page 4

• Manufacturer Part Number: ZXLD1371EST16TC
• Description: MOSFET LED Controller TSSOP TSSOP-16EP T&R 2.5K
• Manufacturer: Diodes Inc. / Zetex

Specifications of ZXLD1371EST16TC

• Rohs: yes

Package Thermal Data
Recommended Operating Conditions
Notes:
ZXLD1371
Document number: DS35436 Rev. 1 - 2
Junction-to-Ambient, θ
Junction-to-Case, θ
Symbol
t
V
V
V
PWMH/L
V
V
f
V
SENSE
I
f
PWMH
PWM
PWML
V
REF
max
TADJ
GI
AUX
T
ADJ
IN
J
Thermal Resistance
3. For correct operation SGND and PGND should always be connected together.
4. Measured on “High Effective Thermal Conductivity Test Board" according to JESD51.
5. Device starts up above 5.4V and as such the minimum applied supply voltage has to be above 5.4V (plus any noise margin). The ZXLD1371 will,
6. V
7. The device contains circuitry to control the switching frequency to approximately 400kHz. The maximum and minimum operating frequency is not
When operating with input voltages below 8V the output current and device parameters may deviate from their normal values; and is dependent
Performance in Buck mode will be reduced at input voltages (V
V
tested in production.
however, continue to function when the input voltage is reduced from ≥ 8V down to 5.0V.
on power MOSFET switch, load and ambient temperature conditions. To ensure best operation in Boost and Buck-boost modes with input
voltages, V
not be applied to V
AUX
IN
Input supply voltage range
Auxiliary supply voltage range (Note 6)
Differential input voltage
External dc control voltage applied to ADJ pin to
adjust output current
Reference external load current
Recommended switching frequency range
Temperature adjustment (T
Recommended PWM dimming frequency range
PWM pulse width in dimming mode
PWM pin high level input voltage
PWM pin low level input voltage
Operating Junction Temperature Range
Gain setting ratio for boost and buck-boost modes
.
can be driven from a voltage higher than V
IN
JC
, between 5.0 and 8V a suitable boot-strap network on V
JA
AUX
(Note 4)
in the absence of a voltage at V
Parameter
ADJ
TSSOP-16 EP
TSSOP-16 EP
) input voltage range
Package
IN
to provide higher efficiency at low V
IN
(-40°C ≤ T
www.diodes.com
. V
AUX
4 of 42
IN
can also be operated at a lower voltage than V
, V
AUX
AUX
Typical
J
Normal Operation
(Note 5) Reduced performance
operation
Normal Operation
(Note 5) Reduced performance
operation
V
DC brightness control mode
from 10% to 100%
REF sourcing current
(Note 7)
To achieve 1000:1 resolution
To achieve 500:1 resolution
PWM input high or low
Ratio= V
) below 8V. – a boot-strap network cannot be implemented in buck mode.
IN
≤ 125°C)
50
23
pin is recommended.
-V
Performance/Comment
ISM
, with 0 ≤ V
GI
/V
ADJ
IN
°C/W
°C/W
Unit
voltages, but to avoid false operation; a voltage should
Diodes Incorporated
A Product Line of
ADJ
≤ 2.5
IN
to increase efficiencies at high
0.125
0.002
0.20
Min
300
100
100
8.0
5.0
8.0
5.0
-40
0
0
2
0
© Diodes Incorporated
1000
V
1000
Max
1.25
0.50
February 2012
450
500
125
ZXLD1371
8.0
8.0
5.5
0.4
60
60
10
REF
1
Unit
kHz
mV
mA
Hz
Hz
ms
°C
V
V
V
V
V
V