전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

LM25574 데이터시트(PDF) 5 Page - Texas Instruments

부품명 LM25574
상세설명  SIMPLE SWITCHER짰 42V, 0.5A Step-Down Switching Regulator
Download  30 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

LM25574 데이터시트(HTML) 5 Page - Texas Instruments

  LM25574_14 Datasheet HTML 1Page - Texas Instruments LM25574_14 Datasheet HTML 2Page - Texas Instruments LM25574_14 Datasheet HTML 3Page - Texas Instruments LM25574_14 Datasheet HTML 4Page - Texas Instruments LM25574_14 Datasheet HTML 5Page - Texas Instruments LM25574_14 Datasheet HTML 6Page - Texas Instruments LM25574_14 Datasheet HTML 7Page - Texas Instruments LM25574_14 Datasheet HTML 8Page - Texas Instruments LM25574_14 Datasheet HTML 9Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 30 page
background image
LM25574
www.ti.com
SNVS483F – JANUARY 2007 – REVISED FEBRUARY 2009
Electrical Characteristics
Specifications with standard typeface are for TJ = 25°C, and those with boldface type apply over full Operating Junction
Temperature range. VIN = 24V, RT = 32.4kΩ unless otherwise stated.
(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
STARTUP REGULATOR
VccReg
Vcc Regulator Output
6.85
7.15
7.45
V
Vcc LDO Mode turn-off
9
V
Vcc Current Limit
Vcc = 0V
25
mA
VCC SUPPLY
Vcc UVLO Threshold
(Vcc increasing)
5.03
5.35
5.67
V
Vcc Undervoltage Hysteresis
0.35
V
Bias Current (Iin)
FB = 1.3V
3.7
4.5
mA
Shutdown Current (Iin)
SD = 0V
48
70
µA
SHUTDOWN THRESHOLDS
Shutdown Threshold
(SD Increasing)
0.47
0.7
0.9
V
Shutdown Hysteresis
0.1
V
Standby Threshold
(Standby Increasing)
1.17
1.225
1.28
V
Standby Hysteresis
0.1
V
SD Pull-up Current Source
5
µA
SWITCH CHARACTERSICS
Buck Switch Rds(on)
750
1500
m
BOOST UVLO
4
V
BOOST UVLO Hysteresis
0.56
V
Pre-charge Switch Rds(on)
70
Pre-charge Switch on-time
250
ns
CURRENT LIMIT
Cycle by Cycle Current Limit
RAMP = 0V
0.6
0.7
0.8
A
Cycle by Cycle Current Limit Delay
RAMP = 2.5V
75
ns
SOFT-START
SS Current Source
7
10
14
µA
OSCILLATOR
Frequency1
180
200
220
kHz
Frequency2
RT = 11kΩ
425
485
545
kHz
SYNC Source Impedance
11
k
SYNC Sink Impedance
110
SYNC Threshold (falling)
1.3
V
SYNC Frequency
RT = 11kΩ
550
kHz
SYNC Pulse Width Minimum
15
ns
RAMP GENERATOR
Ramp Current 1
Vin = 36V, Vout=10V
272
310
368
µA
Ramp Current 2
Vin = 10V, Vout=10V
36
50
64
µA
PWM COMPARATOR
Forced Off-time
416
500
575
ns
Min On-time
80
ns
COMP to PWM Comparator Offset
0.7
V
ERROR AMPLIFIER
Feedback Voltage
Vfb = COMP
1.207
1.225
1.243
V
FB Bias Current
17
nA
(1)
Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through correlation
using Statistical Quality Control (SQC) methods. Limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
Copyright © 2007–2009, Texas Instruments Incorporated
Submit Documentation Feedback
5
Product Folder Links: LM25574


유사한 부품 번호 - LM25574_14

제조업체부품명데이터시트상세설명
logo
Texas Instruments
LM25574 TI1-LM25574_16 Datasheet
973Kb / 30P
[Old version datasheet]   SIMPLE SWITCHER 42V, 0.5A Step-Down Switching Regulator
LM25574 TI1-LM25574_17 Datasheet
970Kb / 30P
[Old version datasheet]   SIMPLE SWITCHER 42V, 0.5A Step-Down Switching Regulator
More results

유사한 설명 - LM25574_14

제조업체부품명데이터시트상세설명
logo
National Semiconductor ...
LM25574_0703 NSC-LM25574_0703 Datasheet
414Kb / 22P
   SIMPLE SWITCHER짰 42V, 0.5A Step-Down Switching Regulator
logo
Texas Instruments
LM25575 TI1-LM25575_14 Datasheet
989Kb / 29P
[Old version datasheet]   SIMPLE SWITCHER짰 42V, 1.5A Step-Down Switching Regulator
logo
National Semiconductor ...
LM25576_0703 NSC-LM25576_0703 Datasheet
434Kb / 24P
   SIMPLE SWITCHER짰 42V, 3A Step-Down Switching Regulator
logo
Texas Instruments
LM5574 TI1-LM5574_14 Datasheet
911Kb / 28P
[Old version datasheet]   SIMPLE SWITCHER짰 75V, 0.5A Step-Down Switching Regulator
LM25574 TI1-LM25574_16 Datasheet
973Kb / 30P
[Old version datasheet]   SIMPLE SWITCHER 42V, 0.5A Step-Down Switching Regulator
LM25574 TI1-LM25574_17 Datasheet
970Kb / 30P
[Old version datasheet]   SIMPLE SWITCHER 42V, 0.5A Step-Down Switching Regulator
logo
National Semiconductor ...
LM25007 NSC-LM25007_08 Datasheet
282Kb / 12P
   42V, 0.5A Step-Down Switching Regulator
LM25007 NSC-LM25007 Datasheet
617Kb / 12P
   42V, 0.5A Step-Down Switching Regulator
logo
Texas Instruments
LM25007 TI1-LM25007_14 Datasheet
933Kb / 17P
[Old version datasheet]   42V, 0.5A Step-Down Switching Regulator
LM25007 TI-LM25007_15 Datasheet
956Kb / 20P
[Old version datasheet]   LM25007 42V, 0.5A Step-Down Switching Regulator
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


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
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