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LM117HV Scheda tecnica(PDF) 1 Page - Texas Instruments

Il numero della parte LM117HV
Spiegazioni elettronici  High Voltage Three-Terminal Adjustable Regulator
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LM117HV Scheda tecnica(HTML) 1 Page - Texas Instruments

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OUT
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R
V
= 1.25 V
I
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LM117HV, LM317HV
SNVS773D – APRIL 2000 – REVISED SEPTEMBER 2015
LMx17HV High Voltage Three-Terminal Adjustable Regulator With Overload Protection
1 Features
3 Description
The LMx17HV is an adjustable 3-terminal positive
1
Up to 60 V Input to Output Differential
voltage regulator capable of supplying 1.5 A or more
1.5-A Output Current
currents over a 1.25-V to 57-V output voltage range.
Line Regulation 0.01%/V (Typical)
It requires only two external resistors to set the output
voltage. The LMx17HV is packaged in standard
Load Regulation 0.1% (Typical)
transistor packages that are easily mounted and
80-dB Ripple Rejection (Typical)
handled.
Internal Short-Circuit Current Limiting Protection
The LMx17HV offers overload protection like current
Thermal Overload Protection
limit, thermal overload protection and safe area
–55 to 150°C Operating Temperature Range
protection, which make the device blowout proof. The
(LM117HV)
overload protection circuitry remains fully functional
even if the adjustment terminal is disconnected.
0 to 125°C Operating Temperature Range
(LM317HV)
Typically, no capacitors are needed unless the device
is situated more than 6 inches from the input filter
2 Applications
capacitors, in which case an input bypass is needed.
An optional output capacitor can be added to improve
Industrial Power Supplies
transient response. The adjustment terminal can be
PLC Systems
bypassed to achieve very high ripple rejection ratios
Factory Automation Systems
which are difficult to achieve with standard 3-terminal
regulators.
Building Automation Systems
Battery Charger
Since the regulator is floating and sees only the input-
to-output differential voltage, supplies of several
1.2-V to 50-V Adjustable Regulator With High
hundred volts can be regulated as long as the
Voltage Input
maximum input to output differential is not exceeded,
or in other words, do not short the output to ground.
By
connecting
a
fixed
resistor
between
the
adjustment and output, the LMx17HV can also be
used as a precision current regulator. Supplies with
electronic shutdown can be achieved by clamping the
adjustment terminal to ground, which programs the
output to 1.25 V where most loads draw little current.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TO-39 (3)
8.255 mm × 8.255 mm
LM117HV
LM317HV
TO-3 (2)
19.507 mm × 19.507 mm
LM317HV
TO-220 (3)
14.986 mm × 10.16 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
*Needed if device is more than 6 inches from filter
capacitors. .
†Optional—improves transient response
††
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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