參數(shù)資料
型號(hào): LT1105I
廠商: Linear Technology Corporation
元件分類(lèi): 基準(zhǔn)電壓源/電流源
英文描述: RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述: 抗輻射高效,5安培開(kāi)關(guān)穩(wěn)壓器
文件頁(yè)數(shù): 22/32頁(yè)
文件大?。?/td> 452K
代理商: LT1105I
22
LT1103/LT1105
Flyback Waveform for Discontinuous Mode Operation
Flyback Waveform for Continuous Mode Operation
V
ZENER
PRIMARY SWITCH VOLTAGE
AREA “a” = AREA “b” TO MAINTAIN
ZERO VOLTS ACROSS PRIMARY
0V
[V
OUT
+ Vf + (I
SEC
R
P
)]/N
V
IN
AREA “c” = AREA “d” TO MAINTAIN
ZERO VOLTS ACROSS SECONDARY
N V
IN
[V
OUT
+ Vf + (I
SEC
R
P
)]
0V
SECONDARY WINDING VOLTAGE
[V
OUT
+ Vf + (I
SEC
R
P
)]/N1
0V
BIAS WINDING VOLTAGE
AREA “e” = AREA “f” TO MAINTAIN
ZERO VOLTS ACROSS BIAS WINDING
N2 V
IN
a
b
c
d
e
f
I
I
PRI
PRIMARY CURRENT
0A
I
SEC =
I
PRI
/N
SECONDARY CURRENT
0A
I
PRI
I
0A
SWITCH CURRENT
I
PRI
SNUBBER DIODE CURRENT
0A
t = (I
PRI
)[L(lk
PRI
)]/V
SNUB
a
b
V
ZENER
PRIMARY SWITCH VOLTAGE
AREA “a” = AREA “b” TO MAINTAIN
ZERO VOLTS ACROSS PRIMARY
[V
OUT
+ Vf + (I
SEC
R
P
)]/N
V
IN
0V
AREA “c” = AREA “d” TO MAINTAIN
ZERO VOLTS ACROSS SECONDARY
N V
IN
[V
OUT
+ Vf + (I
SEC
R
P
)]
0V
SECONDARY WINDING VOLTAGE
[V
OUT
+ Vf + (I
SEC
R
P
)]/N1
0V
AREA “e” = AREA “f” TO MAINTAIN
ZERO VOLTS ACROSS BIAS WINDING
N2 V
IN
BIAS WINDING VOLTAGE
e
f
I
I
I
PRI
SNUBBER DIODE CURRENT
0A
I
PRI
PRIMARY CURRENT
0A
I
SEC =
I
PRI
/N
SECONDARY CURRENT
0A
I
PRI
0A
SWITCH CURRENT
LT1103 WF01
t = (I
PRI
)[L(lk
PRI
)]/V
SNUB
c
d
APPLICATIO
S I
N
FOR
ATIO
U
W
U
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LT1105IN RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
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