Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

UC2874DW-2 Fiches technique(PDF) 2 Page - Texas Instruments

No de pièce UC2874DW-2
Description  High Efficiency, Synchronous, Step-down (Buck) Controllers
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

UC2874DW-2 Fiches technique(HTML) 2 Page - Texas Instruments

  UC2874DW-2 Datasheet HTML 1Page - Texas Instruments UC2874DW-2 Datasheet HTML 2Page - Texas Instruments UC2874DW-2 Datasheet HTML 3Page - Texas Instruments UC2874DW-2 Datasheet HTML 4Page - Texas Instruments UC2874DW-2 Datasheet HTML 5Page - Texas Instruments UC2874DW-2 Datasheet HTML 6Page - Texas Instruments UC2874DW-2 Datasheet HTML 7Page - Texas Instruments UC2874DW-2 Datasheet HTML 8Page - Texas Instruments UC2874DW-2 Datasheet HTML 9Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 2 / 12 page
background image
2
UC1874-1,-2
UC2874-1,-2
UC3874-1,-2
DIL-18 (TOP VIEW)
J or N, DW Packages
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V
Boost Voltage (BOOT). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50V
OUTPUT Drivers (HDRIVE, LDRIVE) Currents
(continuous) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.25A
(peak) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1A
VREF Current . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Inputs (VSNS, SS, COMP, CT) . . . . . . . . . . . . . . . . -0.3 to 10V
Inputs (ISNS+, ISNS-) . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 20V
Outputs (CAOUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to10V
Soft start Sinking Current . . . . . . . . . . . . . . . . . . . . . . . . 1.5mA
Storage Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . . +300°C
All currents are positive into, negative out of the specified ter-
minal. All voltages are referenced to GND. Consult Packaging
Section of Databook for thermal limitations and considerations
of packages.
CONNECTION DIAGRAMS
During standby operation, the output capacitor supplies
all of the load current requirements. Normal operation re-
turns when the output voltage has drooped by 1%. Re-
verse current in the inductor is prevented by on-chip
circuitry providing additional efficiency improvements.
Virtual 100% duty cycle operation is easily attained by
the controller even though a bootstrapped high side drive
technique is employed.
A low power sleep mode can be invoked through the SS
pin. Quiescent supply current in sleep mode is typically
less than 50mA. Two UVLO options are available. The
UC3874-1 is designed for logic level MOSFETs and has
UVLO turn-on and turn-off thresholds of 4.5V and 4.4V
respectively. The UC3874-2 is designed for standard
power MOSFETs and has UVLO turn-on and turn-off
thresholds of 10V and 9V respectively. A precision 2.5V
reference can supply 20mA to external circuitry. An error
amplifier with soft start, high bandwidth current amplifier,
and a synchronizable oscillator are additional features.
Available packages include 18-pin plastic and ceramic
DIP (N, J), 18-pin SOIC (DW), and 20-pin plastic and
ceramic leadless chip carriers (Q, L).
PLCC-20 (TOP VIEW)
Q Package
LCC-28 (TOP VIEW)
L Package


Numéro de pièce similaire - UC2874DW-2

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
UC2874DW-2 TI-UC2874DW-2 Datasheet
350Kb / 10P
[Old version datasheet]   High Efficiency, Synchronous, Step-down Buck Controllers
More results

Description similaire - UC2874DW-2

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
UC3874N-2G4 TI-UC3874N-2G4 Datasheet
417Kb / 12P
[Old version datasheet]   High Efficiency, Synchronous, Step-down (Buck) Controllers
UC1874 TI-UC1874 Datasheet
350Kb / 10P
[Old version datasheet]   High Efficiency, Synchronous, Step-down Buck Controllers
UC1874-1 TI-UC1874-1 Datasheet
409Kb / 10P
[Old version datasheet]   High Efficiency, Synchronous, Step-down (Buck) Controllers
logo
Linear Technology
LTC1147-5 LINER-LTC1147-5_15 Datasheet
228Kb / 16P
   High Efficiency Step-Down Switching Regulator Controllers
logo
Analog Devices
ADP1147 AD-ADP1147 Datasheet
195Kb / 12P
   High Efficiency Step-Down Switching Regulator Controllers
REV. 0
logo
Linear Technology
LTC1147-3.3 LINER-LTC1147-3.3_15 Datasheet
228Kb / 16P
   High Efficiency Step-Down Switching Regulator Controllers
LTC1147L LINER-LTC1147L_15 Datasheet
228Kb / 16P
   High Efficiency Step-Down Switching Regulator Controllers
LTC1147-3.3 LINER-LTC1147-3.3 Datasheet
218Kb / 16P
   High Efficiency Step-Down Switching Regulator Controllers
logo
Eutech Microelectronics...
EUP7117 EUTECH-EUP7117 Datasheet
108Kb / 1P
   High Efficiency, Synchronous Step-Down Controller
logo
Semtech Corporation
SC4602A SEMTECH-SC4602A Datasheet
353Kb / 18P
   High Efficiency Synchronous, Step Down Controller
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
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