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AUG04F48 Datasheet(PDF) 6 Page - Astec America, Inc |
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AUG04F48 Datasheet(HTML) 6 Page - Astec America, Inc |
6 / 15 page MODEL : AUG 15W SERIES April 05 REVISION 02 SHEET 6 OF 15 Technical Reference Note Ultra Low Profile AUG 15W 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 # DESIGNATION P1, 10, 11, 20 NC Mechanical supplemental contact pins P2, 3, 4 +Vo + Output P5, 6 -Vo - Output P12 ALM Alarm Output P13 RC Remote On/Off P14 PO Parallel Operation P15 NC - P16, 17 +Vin + Input P18, 19 -Vin - Input |
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