AUM03F48 参数 Datasheet PDF下载

Technical Reference Note

Ultra Low Profile

AUM 10W Series

Basic Operation and Features

Over Current Limit Inception (OCP)

The Isolated DC-DC converter limits output current when the current is over the maximum output current due to

abnormality such as overload or short circuit. When over current condition continues and output voltage decreases to the

point of low voltage protection, the DC-DC converter will be in latch up mode. To restore the output, remove the

abnormality and re-set the input voltage under 5V for 1 second minimum.

Over Voltage Protection (OVP)

The Isolated DC-DC converter stops the operation when the output voltage is over the specified Over Voltage Protection

point, the converter will be in latch up mode after 0.5ms*. To restore the output, re-set the input voltage under 5V for 1

second minimum.

Notes*: Output voltage might exceed the point at which OVP starts to function under the specific condition of transient

input voltage or output current change. Therefore, OVP is set to wait for the mask time 0.5ms.

Low Voltage Protection (LVP)

If output voltage is under the specified Low Voltage Protection point, the converter will halt the operation. After typical

500ms mask period, the converter will be in latch up mode. To restore the output, re-set the input voltage under 5V for 1

second minimum.

Remote On/Off Control (RC)

If RC pin is open or connected to –Vin, the converter is turned on. If RC is connected to +Vin, the converter is turned off.

Alarm Output (ALM)

The Alarm output will be down to the –Vin level (Open Drain Output) at the condition of Over Voltage Protection or Low

Voltage Protection. The maximum sink current in ALM pin is 10mA. When operating in parallel application, all operating

units can be simultaneously halt by connecting all the ALM pins together, in the condition of Over Voltage Protection or

Low Voltage Protection caused by any single converter. Maximum number for parallel operation is 10 units

Synchronous Turn On/Off

Connect the PO (parallel Operation) pins of all operating units together will synchronize the turn on / off time in parallel

application.

MODULE PIN ASSIGNMENT

PIN #

P5,6

P7,8

P9,10

P15

P16

P1,2

P3

DESIGNATION

+Vo

-Vo

ALM

RC

PO

+Vin

-Vin

+ Output

- Output

Alarm Output

Remote On/Off

Parallel Operation

+ Input

- Input

MODEL : AUM 10W

SERIES

April 05 REVISION 02

SHEET

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