Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

LM3420AM5-12.6 Folha de dados(PDF) 11 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Nome de Peças LM3420AM5-12.6
Descrição Electrónicos  Lithium-Ion Battery Charge Controller
Download  17 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3420AM5-12.6 Folha de dados(HTML) 11 Page - National Semiconductor (TI)

Back Button LM3420AM5-12.6 Datasheet HTML 7Page - National Semiconductor (TI) LM3420AM5-12.6 Datasheet HTML 8Page - National Semiconductor (TI) LM3420AM5-12.6 Datasheet HTML 9Page - National Semiconductor (TI) LM3420AM5-12.6 Datasheet HTML 10Page - National Semiconductor (TI) LM3420AM5-12.6 Datasheet HTML 11Page - National Semiconductor (TI) LM3420AM5-12.6 Datasheet HTML 12Page - National Semiconductor (TI) LM3420AM5-12.6 Datasheet HTML 13Page - National Semiconductor (TI) LM3420AM5-12.6 Datasheet HTML 14Page - National Semiconductor (TI) LM3420AM5-12.6 Datasheet HTML 15Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 17 page
background image
Compensation (Continued)
portant when analyzing closed loop stability. The minimum
and maximum room temperature values of this resistor are
specified in the Electrical Characteristics section of this data
sheet, and a curve showing the temperature coefficient is
shown in the curves section. Minimum values of R
f result in
lower phase margins.
Test Circuit
The test circuit shown in
Figure 2 can be used to measure
and verify various LM3420 parameters. Test conditions are
set by forcing the appropriate voltage at the V
OUT Set test
point and selecting the appropriate R
L or IOUT as specified in
the Electrical Characteristics section. Use a DVM at the
“measure” test points to read the data.
V
REG External Voltage Trim
The regulation voltage (V
REG) of the LM3420 can be exter-
nally trimmed by adding a single resistor from the COMP pin
to the +IN pin or from the COMP pin to the GND pin, depend-
ing on the desired trim direction. Trim adjustments up to
±10% of V
REG can be realized, with only a small increase in
the temperature coefficient. (See temperature coefficient
curve shown in
Figure 3 below.)
Formulas for selecting trim resistor values are shown below,
based on the percent of increase (%incr) or percent of de-
crease (%decr) of the output voltage from the nominal volt-
age.
For LM3420-4.2
R
increase = 22x10
5/%incr
R
decrease = (53x10
5/%decr) − 75x103
For LM3420-8.2
DS012359-7
FIGURE 2. LM3420 Test Circuit
DS012359-8
Normalized Temperature Drift with
Output Externally Trimmed
DS012359-9
Increasing V
REG
DS012359-10
Decreasing V
REG
FIGURE 4. Changing V
REG
www.national.com
11


Nº de peça semelhante - LM3420AM5-12.6

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
National Semiconductor ...
LM3420AM5-12.6 NSC-LM3420AM5-12.6 Datasheet
384Kb / 17P
   Lithium-Ion Battery Charge Controller
More results

Descrição semelhante - LM3420AM5-12.6

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
National Semiconductor ...
LM3420-4.2 NSC-LM3420-4.2 Datasheet
384Kb / 17P
   Lithium-Ion Battery Charge Controller
logo
Advanced Analogic Techn...
AAT3680 ANALOGICTECH-AAT3680 Datasheet
265Kb / 18P
   Lithium-Ion Linear Battery Charge Controller
logo
ON Semiconductor
NCP1800 ONSEMI-NCP1800_04 Datasheet
93Kb / 14P
   Single-Cell Lithium Ion Battery Charge Controller
November, 2004 ??Rev. 5
logo
Advanced Analog Technol...
AAT3680 AAT-AAT3680 Datasheet
213Kb / 18P
   Lithium-Ion/Polymer Linear Battery Charge Controller
logo
Texas Instruments
UCC3956DW TI-UCC3956DW Datasheet
535Kb / 19P
[Old version datasheet]   SWITCH-MODE LITHIUM-ION BATTERY CHARGE CONTROLLER
logo
Advanced Analogic Techn...
AAT3680 ANALOGICTECH-AAT3680_06 Datasheet
213Kb / 18P
   Lithium-Ion/Polymer Linear Battery Charge Controller
logo
ON Semiconductor
NCP1800 ONSEMI-NCP1800 Datasheet
87Kb / 14P
   Single-Cell Lithium Ion Battery Charge Controller
May, 2003 - Rev. 4
logo
Sanyo Semicon Device
LA5621M SANYO-LA5621M Datasheet
94Kb / 6P
   Lithium-Ion Battery Charge Control IC
logo
Mitsumi Electronics, Co...
MM3358 MITSUMI-MM3358 Datasheet
187Kb / 27P
   Lithium-Ion Battery Charge Control IC
MM3635 MITSUMI-MM3635 Datasheet
168Kb / 25P
   Lithium-ion battery charge control IC
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
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