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LMZ14203 Folha de dados(PDF) 4 Page - Texas Instruments

Nome de Peças LMZ14203
Descrição Electrónicos  LMZ14203 3A SIMPLE SWITCHER짰 Power Module with 42V Maximum Input Voltage
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Fabricante Electrônico  TI [Texas Instruments]
Página de início  http://www.ti.com
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LMZ14203 Folha de dados(HTML) 4 Page - Texas Instruments

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LMZ14203
SNVS632N – DECEMBER 2009 – REVISED MARCH 2013
www.ti.com
Absolute Maximum Ratings
(1) (2)
VIN, RON to GND
-0.3V to 43.5V
EN, FB, SS to GND
-0.3V to 7V
Junction Temperature
150°C
Storage Temperature Range
-65°C to 150°C
ESD Susceptibility (3)
± 2 kV
Peak Reflow Case Temperature
245°C
(30 sec)
For soldering specifications, refer to the following document: www.ti.com/lit/snoa549c
(1)
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which
operation of the device is intended to be functional. For ensured specifications and test conditions, see the Electrical Characteristics.
(2)
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(3)
The human body model is a 100pF capacitor discharged through a 1.5 k
Ω resistor into each pin. Test method is per JESD-22-114.
Operating Ratings
(1)
VIN
6V to 42V
EN
0V to 6.5V
Operation Junction Temperature
−40°C to 125°C
(1)
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which
operation of the device is intended to be functional. For ensured specifications and test conditions, see the Electrical Characteristics.
Electrical Characteristics
Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the junction temperature (TJ) range of -40°C
to +125°C. Minimum and Maximum limits are ensured through test, design or statistical correlation. Typical values represent
the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise stated the
following conditions apply: VIN = 24V, Vout = 3.3V
Min
Typ
Max
Symbol
Parameter
Conditions
Units
(1)
(2)
(1)
SYSTEM PARAMETERS
Enable Control(3)
VEN
EN threshold trip point
VEN rising
1.1
1.18
1.25
V
VEN-HYS
EN threshold hysteresis
VEN falling
90
mV
Soft-Start
ISS
SS source current
VSS = 0V
5
8
11
µA
ISS-DIS
SS discharge current
-200
µA
Current Limit
ICL
Current limit threshold
d.c. average
3.2
4.2
5.25
A
VIN= 12V to 24V
ON/OFF Timer
tON-MIN
ON timer minimum pulse width
150
ns
tOFF
OFF timer pulse width
260
ns
Regulation and Over-Voltage Comparator
VFB
In-regulation feedback voltage
VSS >+ 0.8V
0.784
0.804
0.825
V
TJ = -40°C to 125°C
IO = 3A
VSS >+ 0.8V
0.786
0.802
0.818
V
TJ = 25°C
IO = 10 mA
VFB-OV
Feedback over-voltage protection
0.92
V
threshold
(1)
Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation
using Statistical Quality Control (SQC) methods. Limits are used to calculate Average Outgoing Quality Level (AOQL).
(2)
Typical numbers are at 25°C and represent the most likely parametric norm.
(3)
EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. See AN-2024 and layout for information on device under test.
4
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