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参数资料
| 型号： | 005-BT4-033-SNH-N |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 33 W DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 11/16页 |
| 文件大小： | 266K |
| 代理商： | 005-BT4-033-SNH-N |
4
DC/DC Converter: 005-BT4-033-SNH-N
5V Input, 33W, +3.3V Output
Pin Description
Table 7. Pin Description
(See Notes 1, 2 & 3.)
Name
Pin #
Description
POWER
GND
11, 13
These pins are tied directly to the DC/DC converter backplane. They are used
as the return for both the input voltage supply and the output voltage.
VIN
12
This pin is connected to the input voltage supply.
VOUT
14
This is the output pin of the converter.
ENABLE
5
A high level on this TTL input will allow turn-on of the converter. An external
4.7K pull-up resistor is required.
POWER
GOOD
4
This open collector output provides an up level when the converter is operating
within the supervisory limits. It can be used as a system Power On Reset
(POR). Normally it should be connected to Vcc with a 10K pull-up resistor.
TRIM
8
This input allows VOUT to be adjusted over a range of -5, +8%.
+SENSE
7
This is the remote sense input for the VOUT output. It should be connected to
the positive side of the load at the point where the best regulation is desired.
The regulator will adjust VOUT until +SENSE is in regulation.
SHARE
6
This pin allows similar converters to be connected in parallel and current share
the load current.
MARGIN
VOLTAGE
1
This pin allows the output voltage to be margined up and down (±10%) when
the MARGIN SELECT pin is grounded.
MARGIN
SELECT
3
When this pin is tied to ground, the output can be margined by the MARGIN
VOLTAGE pin. When this pin is floating, the converter is in its normal mode of
operation.
REF
GROUND
2
This pin is tied to the control card ground.
Notes:
1.
See Figure 8 on page 14 for pinout location.
2.
For maximum reliability, all GROUND pins must be utilized.
3.
All unused pins (9, 10) should have no connections.
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