数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

L7985 数据表(PDF) 6 Page - STMicroelectronics

部件名 L7985
功能描述  Voltage feed-forward
PDF  42 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L7985 数据表(HTML) 6 Page - STMicroelectronics

Back Button L7985 Datasheet HTML 2Page - STMicroelectronics L7985 Datasheet HTML 3Page - STMicroelectronics L7985 Datasheet HTML 4Page - STMicroelectronics L7985 Datasheet HTML 5Page - STMicroelectronics L7985 Datasheet HTML 6Page - STMicroelectronics L7985 Datasheet HTML 7Page - STMicroelectronics L7985 Datasheet HTML 8Page - STMicroelectronics L7985 Datasheet HTML 9Page - STMicroelectronics L7985 Datasheet HTML 10Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 42 page
background image
Electrical characteristics
L7985
6/42
DocID022446 Rev 7
4
Electrical characteristics
TJ = 25 °C, VCC = 12 V, unless otherwise specified.
Table 4. Electrical characteristics
Symbol
Parameter
Test conditions
Values
Unit
Min.
Typ.
Max.
VCC
Operating input voltage range
(1)
4.5
38
V
VCCON
Turn on VCC threshold
(1)
4.5
VCCHYS
VCC UVLO hysteseris
(1)
0.1
0.4
RDSON
MOSFET on resistance
200
m
(1)
400
ILIM
Maximum limiting current
2.5
3.0
3.5
A
Oscillator
FSW
Switching frequency
(1)
210
250
275
KHz
VFSW
FSW pin voltage
1.254
V
D
Duty cycle
0
100
%
FADJ
Adjustable switching frequency
RFSW = 33 k
1000
KHz
Dynamic characteristics
VFB
Feedback voltage
4.5 V < VCC < 38 V
0.593
0.6
0.607
V
4.5 V < VCC < 38 V(1)
0.582
0.6
0.618
DC characteristics
IQ
Quiescent current
Duty cycle = 0, VFB = 0.8 V
2.4
mA
IQST-BY
Total standby quiescent current
20
30
A
Enable
VEN
EN threshold voltage
Device OFF level
0.3
V
Device ON level
1.2
IEN
EN current
EN = VCC
7.5
10
A
Soft-start
TSS
Soft-start duration
FSW pin floating
7.4
8.2
9.1
ms
FSW = 1 MHz, R FSW = 33 k
2
Error amplifier
VCH
High level output voltage
VFB < 0.6 V
3
V
VCL
Low level output voltage
VFB > 0.6 V
0.1
IO SOURCE Source COMP pin
VFB = 0.5 V, VCOMP = 1 V
19
mA



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 38 39 40 41 42


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
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