參數(shù)資料
型號(hào)： 1725I
廠商： Linear Technology Corporation
英文描述： General Purpose Isolated Flyback Controller
中文描述： 通用隔離反激式控制器
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 241K
代理商： 1725I
1
LT1725
1725f
LT1725
3V
OUT
FB
SFST
VC
OSCAP
t
ON
ENDLY
MENAB
R
OCMP
R
CMPC
SGND
V
CC
UVLO
GATE
I
SENSE
PGND
1nF
0.1
μ
F
47pF
51k
51k
51k
2.7k
35.7k
1%
3.01k
1%
+
15
μ
F
150
μ
F
1
μ
F
1.5
μ
F
47k
820k
100pF
33k
68
150pF
22
BAS16
V
IN
36V TO 72V
+
IRF620
6
1
2
4
9
10
12
11
18
51
1W
470pF
12CWQ06
V
OUT
= 5V
I
OUT
= 0 to 2A
CTX02-14989
1725 TA01a
0.18
FEATURES
DESCRIPTIOU
The LT
1725 is a monolithic switching regulator control-
ler specifically designed for the isolated flyback topology.
It drives the gate of an external MOSFET and is generally
powered from a third transformer winding. These features
allow for an application input voltage limited only by
external power path components. The third transformer
winding also provides output voltage feedback informa-
tion, such that an optoisolator is not required. Its gate
drive capability coupled with a suitable external MOSFET
can deliver load power up to tens of watts.
The LT1725 has a number of features not found on most
other switching regulator ICs. By utilizing current mode
switching techniques, it provides excellent AC and DC line
regulation. Its unique control circuitry can maintain regu-
lation well into discontinuous mode in most applications.
Optional load compensation circuitry allows for improved
load regulation. An optional undervoltage lockout pin
halts operation when the application input voltage is too
low. An optional external capacitor implements a soft-
start function. A 3V output is available at up to several mA
for powering primary side application circuitry.
TYPICAL APPLICATIOU
APPLICATIU
General Purpose
Isolated Flyback Controller
I
Drives External Power MOSFET with External
I
SENSE
Resistor
I
Application Input Voltage Limited Only by
External Power Components
I
Senses Output Voltage Directly from Primary Side
Winding—No Optoisolator Required
I
Accurate Regulation Without User Trims
I
Regulation Maintained Well into Discontinuous Mode
I
Switching Frequency from 50kHz to 250kHz with
External Capacitor
I
Optional Load Compensation
I
Optional Undervoltage Lockout
I
Available in 16-Pin SO and SSOP Packages
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
Telecom Isolated Converters
I
Offline Isolated Power Supplies
I
Instrumentation Power Supplies
Output Load Regulation
48V to Isolated 5V Converter
I
LOAD
(A)
0
V
O
5.00
1725 F10b
4.75
0.5
1.0
1.5
2.0
5.25
V
IN
= 36V
V
IN
= 72V
V
IN
= 48V
相關(guān)PDF資料
PDF描述
17537-5 HTSNK B LONG .9H LOW FLOW, THRU HOLE
17537 HTSNK B LONG .9H LOW FLOW, THRU HOLE
17539 HTSNK, C LONG,. .911 LOW FLOW. THRU HOLE
17539-G SP Relay Socket
17574 HTSNK. C X-FLOW, .9H LOW FLOW. THRU HOLE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
1725S-1C-12D 制造商:Guardian Electric Manufacturing 功能描述:
1725S-1C-24D 制造商:Guardian Electric Manufacturing 功能描述: 制造商:M.E.C. Relays 功能描述:
1726 功能描述:端子 ANVIL FOR TERMINALS RoHS:否 制造商:AVX 產(chǎn)品:Junction Box - Wire to Wire 系列:9826 線(xiàn)規(guī):26-18 接線(xiàn)柱/接頭大小: 絕緣: 顏色:Red 型式:Female 觸點(diǎn)電鍍:Tin over Nickel 觸點(diǎn)材料:Beryllium Copper, Phosphor Bronze 端接類(lèi)型:Crimp
1726 220 2101 制造商:Harting Technology Group 功能描述:SOCKET BUS TYPE 47 FEMALE R/A 220WAY
1726 220 2102 制造商:Harting Technology Group 功能描述:SOCKET FEMALE R/A TYPE 47 220WAY 制造商:Harting Technology Group 功能描述:SOCKET, FEMALE, R/A, TYPE 47, 220WAY 制造商:Harting Technology Group 功能描述:SOCKET, FEMALE, R/A, TYPE 47, 220WAY; Series:Har-Bus; Gender:Receptacle; No. of Contacts:220; No. of Rows:5; Pitch Spacing:2mm; Connector Mounting:PCB; Contact Termination:Press Fit Right Angle; Contact Material:Copper; SVHC:No SVHC ;RoHS Compliant: Yes
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*