參數資料
型號： C1608JB1H102K
廠商： Electronic Theatre Controls, Inc.
英文描述： 2-ch DC/DC Converter IC
中文描述： 2通道直流/直流轉換器集成電路
文件頁數： 24/36頁
文件大?。?/td> 380K
代理商： C1608JB1H102K
MB39A104
24
I
SELECTION OF COMPONENTS
Pch MOS FET
The P-ch MOSFET for switching use should be rated for at least 20% more than the maximum input voltage. To
minimize continuity loss, use a FET with low R
DS(ON)
between the drain and source. For high input voltage and
high frequency operation, on/off-cycle switching loss will be higher so that power dissipation must be considered.
In this application, the Toshiba TPC8102 is used. Continuity loss, on/off switching loss, and total loss are deter-
mined by the following formulas. The selection must ensure that peak drain current does not exceed rated values,
and also must be in accordance with overcurrent detection levels.
Continuity loss : P
C
P
C
=
I
D 2
×
R
DS (ON)
×
Duty
On-cycle switching loss : P
S (ON)
V
D (Max)
×
I
D
×
tr
×
f
OSC
Off-cycle switching loss : P
S (OFF)
V
D (Max)
×
I
D (Max)
×
tf
×
f
OSC
Total loss : P
T
P
T
=
P
C
+
P
S (ON)
+
P
S (OFF)
Example: Using the Toshiba TPC8102
CH1
Input voltage V
IN (Max)
=
19 V, output voltage V
O
=
5 V, drain current I
D
=
3 A, Oscillation frequency f
OSC
=
500 kHz,
L
=
15
μ
H, drain-source on resistance R
DS (ON)
: 50 m
, tr
=
tf : 100 ns.
Drain current (Max) : I
D (Max)
Drain current (Min) : I
D (Min)
P
S (ON)
=
6
P
S (OFF)
=
6
I
D (Max)
=
I
O
+
V
IN
V
O
2L
19
5
2
×
15
×
10
6
ton
=
3
+
×
1
×
0.263
500
×
10
3
: 3.25 (A)
I
D (Min)
=
I
O
V
IN
V
O
2L
19
5
2
×
15
×
10
6
ton
=
3
×
1
×
0.263
500
×
10
3
: 2.75 (A)
相關PDF資料
PDF描述
C1608JB1H104K 2-ch DC/DC Converter IC
C186EA20 RSO-S_D(Z) Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 12V; Output Voltage (Vdc): 12V; Power: 1W; 2:1 and 4:1 Wide Input Voltage Ranges; 1kVDC, 2kVD & 3kVDC Isolation; UL94V-0 Package Material; Continuous Short Circuit Protectionwith Current Foldback; Low Noise; No External Capacitor needed; Efficiency to 83%
C1888CT Off-line Power Supply Controller
C2012X5R0J106 Up to 500 mA, High Efficiency Synchronous Step-Down DC-DC Converter
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相關代理商/技術參數
參數描述
C1608JB1H102KT000N 制造商:TDK 功能描述:Capacitor,ceramic,SMD,50V,1nF, +/-10%
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C1608JB1H103K080AA 制造商:TDK 功能描述:CAP CER 10000PF 50V 10% JB 0603
C1608JB1H103KT000N 制造商:TDK 功能描述:Capacitor,ceramic,SMD,50V,10nF, +/-10%
C1608JB1H103M080AA 制造商:TDK 功能描述:CAP CER 10000PF 50V 20% JB 0603
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