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LM22677 Scheda tecnica(PDF) 4 Page - Texas Instruments

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Il numero della parte LM22677
Spiegazioni elettronici  LM22677/-Q1 42-V, 5-A SIMPLE SWITCHER짰, Step-Down Voltage Regulator With Features
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

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LM22677, LM22677-Q1
SNVS582O – SEPTEMBER 2008 – REVISED AUGUST 2015
www.ti.com
6 Specifications
6.1 Absolute Maximum Ratings
(1) (2)
MIN
MAX
UNIT
VIN to GND
43
V
EN Pin Voltage
–0.5
6
V
RT/SYNC Pin Voltage
–0.5
7
V
SW to GND(3)
–5
VIN
V
BOOT Pin Voltage
VSW + 7
V
FB Pin Voltage
–0.5
7
V
Power Dissipation
Internally Limited
Junction Temperature
150
°C
For soldering specifications, refer to Application Report Absolute Maximum Ratings for Soldering (SNOA549).
Storage temperature, Tstg
–65
150
°C
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur, including inoperability and degradation of
device reliability and/or performance. Functional operation of the device and/or non-degradation at the absolute maximum ratings or
other conditions beyond those indicated in the Recommended Operating Conditions is not implied. The Recommended Operating
Conditions indicate conditions at which the device is functional and should not be operated beyond such conditions.
(2)
If Military/Aerospace specified devices are required, contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3)
The absolute-maximum specification of the ‘SW to GND’ applies to dc voltage. An extended negative voltage limit of –10 V applies to a
pulse of up to 50 ns.
6.2 ESD Ratings: LM22677
VALUE
UNIT
V(ESD)
Electrostatic discharge
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1)
±2000
V
(1)
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
6.3 ESD Ratings: LM22677-Q1
VALUE
UNIT
V(ESD)
Electrostatic discharge
Human-body model (HBM), per AEC Q100-002(1)
±2000
V
(1)
AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.
6.4 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
VIN
Supply Voltage
4.5
42
V
Junction Temperature
–40
125
°C
6.5 Thermal Information
LM22677
THERMAL METRIC(1)(2)
NDR (TO-263)
UNIT
7 PINS
RθJA
Junction-to-ambient thermal resistance
22
°C/W
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report (SPRA953).
(2)
The value of RθJA for the NDR (TJ) package of 22°C/W is valid if package is mounted to 1 square inch of copper. The RθJA value can
range from 20 to 30°C/W depending on the amount of PCB copper dedicated to heat transfer. See application note AN-1797 TO-263
THIN Package (SNVA328) for more information.
4
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Copyright © 2008–2015, Texas Instruments Incorporated
Product Folder Links: LM22677 LM22677-Q1


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