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參數(shù)資料
| 型號： | LT1105CN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 1.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDIP14 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-14 |
| 文件頁數(shù)： | 26/32頁 |
| 文件大小： | 452K |
| 代理商： | LT1105CN |
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26
LT1103/LT1105
APPLICATIO
S I
N
FOR
ATIO
U
W
U
forward converter to define the switch voltage when S1 is
off. This “reset” winding limits the maximum duty cycle
allowed for the switch. This topology trades off reduced
transformer size for increased complexity and parts count.
A separate isolated feedback path is required for full
isolation from input to output because voltages on the
primary are no longer related to the DC output voltage
during switch off time.
The isolated feedback path can take several forms. A
second transformer in a modulator/demodulator scheme
provides the isolation, but with significant complexity. An
optoisolator can be substituted for the transformer with a
savings in volume to be traded off with component
variations and possible aging problems with the
optoisolator transfer function. Finally, an extra winding
closely coupled to the output inductor L1 can sense the
flux in this element and give a representation of the output
voltage when S1 is off.
V
OUT
in continuous modeis defined as:
V
OUT
= V
IN
N DC
The secondary voltage charges up L1 through D1 when S1
is on. When S1 is off, energy in L1 is transferred through
free-wheeling diode D2 to C1. The extra transformer
winding and diode D3 are needed in a single switch
D1
V
OUT
C1
1:N
LT1103 AI02
V
IN
S1
D2
D3
L1
COMMON
Simplified Forward Converter
TYPICAL APPLICATIO
N
S
15V
V
SW
LT1105
LT1103 TA04
I
LIM
LT1105 FET Connection
LT1103 FET Connection
15V
V
SW
LT1103
LT1103 TA03
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| LT1105IN | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1105CN#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single 30V 14-Pin PDIP N |
| LT1105CN8 | 功能描述:IC OFFLINE SWIT CM HV 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - AC-DC 轉(zhuǎn)換器，離線開關(guān) 系列:- 標準包裝:3,000 系列:- 輸出隔離:隔離 頻率范圍:61kHz ~ 71kHz 輸入電壓:9.4 V ~ 28 V 輸出電壓:12V 功率（瓦特）:- 工作溫度:-40°C ~ 125°C 封裝/外殼:SC-74，SOT-457 供應(yīng)商設(shè)備封裝:6-TSOP 包裝:帶卷 (TR) |
| LT1105CN8#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single 30V 8-Pin PDIP N 制造商:Linear Technology 功能描述:IC SWITCHING REG DIP8 1105 制造商:Linear Technology 功能描述:IC, SWITCHING REG, DIP8, 1105 制造商:Linear Technology 功能描述:IC, OFFLINE SWITCHING REGULATOR, DIP-8; Primary Input Voltage:30V; No. of Outputs:1; Output Voltage:50V; Output Current:1.5A; No. of Pins:8; Operating Temperature Min:0C; Operating Temperature Max:70C; MSL:MSL 1 - Unlimited ;RoHS Compliant: Yes |
| LT1105CS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
| LT1105I | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Offline Switching Regulator |
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