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參數(shù)資料
| 型號(hào)： | XRAH-07C1A0_07 |
| 廠商： | Bel Fuse Inc. |
| 英文描述： | NON-ISOLATED DC/DC CONVERTERS |
| 中文描述： | 非隔離式DC / DC轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 3/7頁(yè) |
| 文件大?。?/td> | 153K |
| 代理商： | XRAH-07C1A0_07 |
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
3.3 Vdc Input 0.9 Vdc - 2.5 Vdc/7 A Output
General Specifications
Parameter
Efficiency
Min
90%
86%
84%
81%
79%
78%
250 kHz
50%
Typ
92%
88%
86%
83%
81%
80%
300 kHz
-
Max
-
-
-
-
-
-
340 kHz
146%
Notes
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=1.0 V
V
O
=0.9 V
Measured at Vin=3.3 V, full load and
Ta=25
°
C
Switching Frequency
Output Trim Range
V
O
=1.8 V
Calculated Per Bell Core SR-332
(Vin=3.3 V; Vo=1.8 V; I
O
= 5.6 A; T
a
=
25
°
C)
MTBF
3,391,747 hours
Dimensions (surface mount)
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
Dimensions (vertical)
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
Weight
0.78 x 0.70 x 0.32
19.81 x 17.78 x 8.13
0.70 x 0.308 x 0.65
17.78 x 7.82 x 16.51
5 g
-
-
Control Specifications
Parameter
Remote On/Off
Signal Low (Unit Off)
Signal High (Unit On)
Output Trim Equations
Min
Typ
Max
Notes
-0.3 V
1.8 V
-
-
1 V
3.6 V
Remote on/off pin open, unit on.
Equations for calculating the trim resistor given the desired adjusted voltage (Vadj) and the nominal output
voltage of the converter (Vnom) are shown below. The Trimup resistor should be connected between the Trim pin
and Ground and the Trimdown resistor should be connected between the Trim pin and Vout pin.
Kohm
Vo
adj
Vo
,
Note:
Output voltage Vo=1.8 V when R
trim
is open.
Module
Vout
Trim
GND
Rtrimup
up
Rtrim
)
261
.
064
.
(
_
=
Module
Vout
Trim
GND
Rtrimdown
Kohm
adj
Vo
Vo
R
down
trim
)
091
.
,
8488
.
(
_
=
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