Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

LM317HVH Datenblatt(PDF) 11 Page - Texas Instruments

Click here to check the latest version.
Teilenummer LM317HVH
Bauteilbeschribung  High Voltage Three-Terminal Adjustable Regulator
Download  28 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM317HVH Datenblatt(HTML) 11 Page - Texas Instruments

Back Button LM317HVH Datasheet HTML 7Page - Texas Instruments LM317HVH Datasheet HTML 8Page - Texas Instruments LM317HVH Datasheet HTML 9Page - Texas Instruments LM317HVH Datasheet HTML 10Page - Texas Instruments LM317HVH Datasheet HTML 11Page - Texas Instruments LM317HVH Datasheet HTML 12Page - Texas Instruments LM317HVH Datasheet HTML 13Page - Texas Instruments LM317HVH Datasheet HTML 14Page - Texas Instruments LM317HVH Datasheet HTML 15Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 28 page
background image
( )
OUT
ADJ
R
V
= 1.25 V
I
R
R
2
2
1
1
æ
ö
+
+
ç
÷
è
ø
LM117HV, LM317HV
www.ti.com
SNVS773D – APRIL 2000 – REVISED SEPTEMBER 2015
Device Functional Modes (continued)
In general, the best type of capacitors to use are solid tantalum. Solid tantalum capacitors have low impedance
even at high frequencies. Depending upon capacitor construction, it takes about 25
μF in aluminum electrolytic to
equal 1
μF of solid tantalum at high frequencies. Ceramic capacitors are also good at high frequencies, but some
types have a large decrease in capacitance at frequencies around 0.5 MHz. For this reason, a 0.01-
μF disc may
seem to work better than a 0.1-
μF disc as a bypass.
Although the LM317HV is stable with no output capacitors, like any feedback circuit, certain values of external
capacitance can cause excessive ringing. This occurs with values between 500 pF and 5000 pF. A 1-
μF solid
tantalum (or 25-
μF aluminum electrolytic) on the output swamps this effect and ensures stability. Any increase of
load capacitance larger than 10
μF will merely improve the loop stability and output impedance.
8.4.2 Protection Diodes
When external capacitors are used with any IC regulator it is sometimes necessary to add protection diodes to
prevent the capacitors from discharging through low current points into the regulator. Most 10-
μF capacitors have
low enough internal series resistance to deliver 20-A spikes when shorted. Although the surge is short, there is
enough energy to damage parts of the IC.
When an output capacitor is connected to a regulator and the input is shorted, the output capacitor will discharge
into the output of the regulator. The discharge current depends on the value of the capacitor, the output voltage
of the regulator, and the rate of decrease of VIN. In the LM317HV, this discharge path is through a large junction
that is able to sustain 15-A surge with no problem. This is not true of other types of positive regulators. For
output capacitors of 25
μF or less, there is no need to use diodes.
The bypass capacitor on the adjustment terminal can discharge through a low current junction. Discharge occurs
when either the input or output is shorted. Internal to the LM317HV is a 50-
Ω resistor which limits the peak
discharge current. No protection is needed for output voltages of 25 V or less and 10-
μF capacitance. Figure 15
shows an LM317HV with protection diodes included for use with outputs greater than 25 V and high values of
output capacitance.
D1 protects against C1
D2 protects against C2
Figure 15. Regulator With Protection Diodes
Copyright © 2000–2015, Texas Instruments Incorporated
Submit Documentation Feedback
11
Product Folder Links: LM117HV LM317HV


Ähnliche Teilenummer - LM317HVH

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
National Semiconductor ...
LM317HVH NSC-LM317HVH Datasheet
469Kb / 15P
   3-Terminal Adjustable Regulator
logo
Texas Instruments
LM317HVH TI1-LM317HVH Datasheet
2Mb / 26P
[Old version datasheet]   High Voltage Three-Terminal Adjustable Regulator With Overload Protection
LM317HVH/NOPB TI1-LM317HVH/NOPB Datasheet
2Mb / 26P
[Old version datasheet]   High Voltage Three-Terminal Adjustable Regulator With Overload Protection
More results

Ähnliche Beschreibung - LM317HVH

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
ON Semiconductor
LM337 ONSEMI-LM337 Datasheet
172Kb / 8P
   THREE-TERMINAL ADJUSTABLE NEGATIVE VOLTAGE REGULATOR
1996 Rev 1
logo
National Semiconductor ...
MDLM117-H NSC-MDLM117-H Datasheet
58Kb / 7P
   POSITIVE THREE TERMINAL ADJUSTABLE VOLTAGE REGULATOR
logo
Guangdong Kexin Industr...
LM317LF KEXIN-LM317LF Datasheet
1Mb / 4P
   Three-Terminal Adjustable Regulator
logo
Estek Electronics Co. L...
ET431 ESTEK-ET431 Datasheet
197Kb / 3P
   three-terminal adjustable regulator
logo
Guangdong Kexin Industr...
LM317LFR KEXIN-LM317LFR Datasheet
1Mb / 4P
   Three-Terminal Adjustable Regulator
logo
Shenzhen Huazhimei Semi...
HM317L HMSEMI-HM317L Datasheet
484Kb / 4P
   Three-terminal adjustable output positive voltage regulator
logo
Micro Electronics
SG117A MICRO-ELECTRONICS-SG117A Datasheet
263Kb / 8P
   1.5 AMP THREE TERMINAL ADJUSTABLE VOLTAGE REGULATOR
logo
Microsemi Corporation
SG117A MICROSEMI-SG117A Datasheet
214Kb / 8P
   1.5 AMP THREE TERMINAL ADJUSTABLE VOLTAGE REGULATOR
logo
ON Semiconductor
LM317M ONSEMI-LM317M Datasheet
232Kb / 16P
   Three-Terminal Adjustable Output Positive Voltage Regulator
August, 2004 ??Rev. 12
logo
Texas Instruments
LM317HV-MIL TI1-LM317HV-MIL Datasheet
2Mb / 26P
[Old version datasheet]   High Voltage Three-Terminal Adjustable Regulator With Overload Protection
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28


Datenblatt Download

Go To PDF Page


Link URL




Privatsphäre und Datenschutz
ALLDATASHEETDE.COM
War ALLDATASHEET hilfreich?  [ DONATE ] 

Über Alldatasheet   |   Werbung   |   Kontakt   |   Privatsphäre und Datenschutz   |   Linktausch   |   Hersteller
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com