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参数资料
| 型号： | DCH2805S/ES |
| 厂商： | CRANE ELECTRONICS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 2.5 W DC-DC UNREG PWR SUPPLY MODULE |
| 文件页数： | 1/4页 |
| 文件大小： | 208K |
| 代理商： | DCH2805S/ES |
Features
–55°C to 100°C
5 or 28 VDC input
Fully isolated
Output regulated from input side
100 kHz typical switching frequency
Topology – Push-Pull DC/DC Converter
Up to 75% efficiency
No minimum load
Output capacitor suggested
DESCRIPTION
The DCH Series offers isolated, unregulated DC/DC converters
with up to 3 watts of output power in a low profile (0.350 max.) metal
package. Single and dual output models are available with input volt-
ages of 5 or 28 VDC. DCH Series converters operate over a –55°C to
+100°C temperature range.
DCH Series converters use a non-saturating core circuit operating at
a frequency of approximately 100 kHz, which reduces reflected input
ripple and minimizes EMI/RFI problems. For applications requiring
MIL-STD-461C, CEO3, reflected input ripple levels, refer to Section B5
or contact your Interpoint representative for matching EMI filters.
Figure 1 shows a standard connection scheme for a dual output
model. Users may also elect to use a dual output device to provide a
single output at double the rated output voltage. The double voltage
connection is achieved by leaving the normal output common pin (Pin
15) unconnected and using either the positive or negative Vout pin for
the output common connection.
On all DCH Series models, a tantalum capacitor with a minimum
value of 22 μF and an appropriate voltage rating should be connected
between the output common and the output line(s) to minimize output
ripple.
MODELS
VDC OUTPUT
SINGLES
5
12
DUALS
±12
±15
Output Current vs Output Voltage
DCH2805S
FIGURE 3
Efficiency
DCH2805S
FIGURE 2
Size (max.):
0.975 x 0.800 x 0.350 inches (24.77 x 20.32 x 8.89 mm)
See case A3 for dimensions.
Weight:
20 grams typical
Screening:
Standard or ES. See “100°C Non-QML Products
– Environmental Screening (Standard & ES)” screening table for
screening options.
Negative
Output
28 V
Load
+
Input
Common
Positive
Input
Positive
Output
Output Common
FIGURE 1:
DUAL DCH CONVERTER
WITH
EXTERNAL CAPACITORS
Typical Performance Curves: 25°C Tc, nominal Vin
1
DCH SERIES
3 WATT
DC/DC CONVERTERS
5 OR 28 VOLT INPUT
NOT RECOMMENDED FOR NEW DESIGNS
相关PDF资料 |
PDF描述 |
|---|---|
| DCH3-050UK-0001 | INTERCONNECTION DEVICE |
| DCH3-050US-0002 | INTERCONNECTION DEVICE |
| DCH3-050US-0004 | INTERCONNECTION DEVICE |
| DCK-7J2S | 1 MHz - 500 MHz RF/MICROWAVE COMBINER, 1 dB INSERTION LOSS |
| DCMD-A-15-F-04.00-S | 15 CONTACT(S), MALE, D SUBMINIATURE CONNECTOR, IDC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DCH2812D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC/DC CONVERTERS 5, 12, OR 28 VOLT INPUT |
| DCH2812D/ES | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC/DC CONVERTERS 5, 12, OR 28 VOLT INPUT |
| DCH2812S | 制造商:CRANE 制造商全称:CRANE 功能描述:DC/DC CONVERTERS 5 OR 28 VOLT INPUT |
| DCH2812S/ES | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC/DC CONVERTERS 5, 12, OR 28 VOLT INPUT |
| DCH2815D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC/DC CONVERTERS 5, 12, OR 28 VOLT INPUT |
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