データシートサーチシステム
  Japanese  ▼
ALLDATASHEET.JP

X  

LM2748 データシート(PDF) 4 Page - Texas Instruments

Click here to check the latest version.
部品番号 LM2748
部品情報  LM2745 / LM2748 Synchronous Buck Controller with Pre-Bias Startup, and Optional Clock
Download  37 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

LM2748 データシート(HTML) 4 Page - Texas Instruments

  LM2748 Datasheet HTML 1Page - Texas Instruments LM2748 Datasheet HTML 2Page - Texas Instruments LM2748 Datasheet HTML 3Page - Texas Instruments LM2748 Datasheet HTML 4Page - Texas Instruments LM2748 Datasheet HTML 5Page - Texas Instruments LM2748 Datasheet HTML 6Page - Texas Instruments LM2748 Datasheet HTML 7Page - Texas Instruments LM2748 Datasheet HTML 8Page - Texas Instruments LM2748 Datasheet HTML 9Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 37 page
background image
LM2745, LM2748
SNOSAL2E – APRIL 2005 – REVISED APRIL 2013
www.ti.com
Electrical Characteristics (continued)
VCC = 3.3V unless otherwise indicated. Typicals and limits appearing in plain type apply for TA= TJ= 25°C. Limits appearing in
boldface type apply over full Operating Temperature Range. Datasheet min/max specification limits are specified by design,
test, or statistical analysis.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VEAO
Error Amplifier Output Voltage
Minimum
1
V
Maximum
2.2
V
GATE DRIVE
IQ-BOOT
BOOT Pin Quiescent Current
VBOOT = 12V, VSD = 0
18
90
µA
RHG_UP
High-Side MOSFET Driver Pull-Up
VBOOT = 5V @ 350 mA Sourcing
2.7
ON resistance
RHG_DN
High-Side MOSFET Driver Pull-Down
350 mA Sinking
0.8
ON resistance
RLG_UP
Low-Side MOSFET Driver Pull-Up
VBOOT = 5V @ 350 mA Sourcing
2.7
ON resistance
RLG_DN
Low-Side MOSFET Driver Pull-Down
350 mA Sinking
0.8
ON resistance
OSCILLATOR
RFADJ = 750 kΩ
50
RFADJ = 100 kΩ
300
PWM Frequency
RFADJ = 42.2 kΩ
475
600
725
fSW
kHz
RFADJ = 18.7 kΩ
1000
LM2745 External Synchronizing
Voltage Swing = 0V to VCC
250
1000
Signal Frequency
LM2745 Synchronization Signal Low
SYNCL
fSW = 250 kHz to 1 MHz
1
V
Threshold
LM2745 Synchronization Signal High
SYNCH
fSW = 250 kHz to 1 MHz
2
V
Threshold
DMAX
Max High-Side Duty Cycle
fSW = 300 kHz
86
fSW = 600 kHz
78
%
fSW = 1 MHz
67
LOGIC INPUTS AND OUTPUTS
VSTBY-IH
Standby High Trip Point
VFB = 0.575V, VBOOT = 3.3V
1.1
V
VSD Rising
VSTBY-IL
Standby Low Trip Point
VFB = 0.575V, VBOOT = 3.3V
0.232
V
VSD Falling
VSD-IH
SD Pin Logic High Trip Point
VSD Rising
1.3
V
VSD-IL
SD Pin Logic Low Trip Point
VSD Falling
0.8
V
VPWGD-TH-LO
PWGD Pin Trip Points
VFB Falling
0.408
0.434
0.457
V
VPWGD-TH-HI
PWGD Pin Trip Points
VFB Rising
0.677
0.710
0.742
V
VPWGD-HYS
PWGD Hysteresis
VFB Falling
60
mV
VFB Rising
90
4
Submit Documentation Feedback
Copyright © 2005–2013, Texas Instruments Incorporated
Product Folder Links: LM2745 LM2748


同様の部品番号 - LM2748

メーカー部品番号データシート部品情報
logo
National Semiconductor ...
LM2748 NSC-LM2748 Datasheet
1Mb / 23P
   Synchronous Buck Controller with Pre-bias Startup, and Optional Clock Synchronization
LM2748MTC NSC-LM2748MTC Datasheet
1Mb / 23P
   Synchronous Buck Controller with Pre-bias Startup, and Optional Clock Synchronization
logo
Texas Instruments
LM2748MTC TI1-LM2748MTC Datasheet
1Mb / 37P
[Old version datasheet]   LM2745 / LM2748 Synchronous Buck Controller with Pre-Bias Startup
LM2748MTC/NOPB TI1-LM2748MTC/NOPB Datasheet
1Mb / 37P
[Old version datasheet]   LM2745 / LM2748 Synchronous Buck Controller with Pre-Bias Startup
logo
National Semiconductor ...
LM2748MTCX NSC-LM2748MTCX Datasheet
1Mb / 23P
   Synchronous Buck Controller with Pre-bias Startup, and Optional Clock Synchronization
More results

同様の説明 - LM2748

メーカー部品番号データシート部品情報
logo
Texas Instruments
LM2748MTC TI1-LM2748MTC Datasheet
1Mb / 37P
[Old version datasheet]   LM2745 / LM2748 Synchronous Buck Controller with Pre-Bias Startup
LM2747 TI-LM2747_15 Datasheet
1Mb / 38P
[Old version datasheet]   Synchronous Buck Controller with Pre-Bias Startup, and Optional Clock Synchronization
logo
National Semiconductor ...
LM2745 NSC-LM2745 Datasheet
1Mb / 23P
   Synchronous Buck Controller with Pre-bias Startup, and Optional Clock Synchronization
LM2747 NSC-LM2747 Datasheet
1,009Kb / 23P
   Synchronous Buck Controller with Pre-bias Startup, and Optional Clock Synchronization
logo
International Rectifier
IR3621 IRF-IR3621 Datasheet
375Kb / 29P
   2-PHASE / DUAL SYNCHRONOUS PWM CONTROLLER WITH OSCILLATOR SYNCHRONIZATION AND PRE-BIAS STARTUP
logo
Delta Electronics, Inc.
DNL DELTA-DNL Datasheet
936Kb / 15P
   Pre-bias startup
DNT12SIP05 DELTA-DNT12SIP05 Datasheet
716Kb / 13P
   Pre-bias startup
logo
Texas Instruments
UCC28250 TI1-UCC28250_12 Datasheet
980Kb / 53P
[Old version datasheet]   Advanced PWM Controller With Pre-Bias Operation
logo
Intersil Corporation
ISL6608CB INTERSIL-ISL6608CB Datasheet
333Kb / 11P
   Synchronous Rectified MOSFET Driver with Pre-Biased Load Startup Capability
March 2004
logo
Renesas Technology Corp
ISL6608 RENESAS-ISL6608 Datasheet
611Kb / 11P
   Synchronous Rectified MOSFET Driver with Pre-Biased Load Startup Capability
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 29 30 31 32 33 34 35 36 37


データシート ダウンロード

Go To PDF Page


リンク URL




プライバシーポリシー
ALLDATASHEET.JP
ALLDATASHEETはお客様のビジネスに役立ちますか?  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   リンク交換   |   メーカーリスト
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