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enpirion
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Страница 1: ...The RB resistors can be chosen by jumper settings to achieve several output voltages The EN63A0QI includes the bulk of the compensation network internally However an external phase lead zero capacitor and resistor is required as part of the feedback This network is shown in Figure 1 Appropriate component values allow for optimum compensation for a given Input voltage and choice of loop bandwidth T...
Страница 2: ...ecoupling capacitor VOUT RA CA RB VFB R1 Figure 1 Output voltage programming and loop compensation Quick Start Guide Figure 2 J2 allows control of the Enable pin The jumper on Enable pin as shown is in disable mode When jumper is between the middle and right pins the signal pin is connected to ground or logic low When the jumper is between the left and middle pins the signal pin is connected to VI...
Страница 3: ...the voltage selection jumpers The leftmost position has to always have a jumper in it Nominal output voltages from left to right for second through fourth positions are 1 80V 1 20V and 1 02V Jumpers as shown select 1 20V output CAUTION Except ENA no other jumpers can be changed while the EN63A0QI is enabled Doing so could result in damage to the part Always disable part when changing output voltag...
Страница 4: ... ENA and Ground Set the pulse amplitude to swing from 0 to 2 5 volts Set the pulse period to 10msec duty cycle to 50 and fast transition 1usec Hook up oscilloscope probes to ENA POK and VOUT with clean ground returns Enable pulse generator output Observe the VOUT voltage ramps as ENA goes high and again as ENA goes low STEP 8 Phase Lock Disable device by moving ENA jumper Power down the device Con...
Страница 5: ...EN63A0QI Evaluation Board User Guide Nov 2010 Page 5 of 9 Figure 4 Evaluation Board Layout Assembly Layer ...
Страница 6: ...1 1 NC2 2 NC3 3 NC4 4 NC5 5 NC6 6 NC7 7 NC8 8 NC9 9 NC10 10 NC11 11 NC12 12 NC13 13 NC14 14 NC19 19 VOUT 20 VOUT 21 VOUT 22 VOUT 23 VOUT 24 VOUT 25 VOUT 26 VOUT 27 VOUT 28 NC29 29 NC SW 30 30 NC SW 31 31 PGND 32 PGND 33 PGND 34 PGND 35 PGND 36 PGND 37 S_IN 56 PGND 55 VDDB 54 NC53 53 NC52 52 PVIN 51 PVIN 50 PVIN 49 PVIN 48 PVIN 47 PVIN 46 PVIN 45 PVIN 44 PVIN 43 NC76 76 NC75 75 NC74 74 NC73 73 NC72...
Страница 7: ...round lead Output ripple and load transient deviations are conveniently measured at TP19 For more accurate ripple measurement please refer to Enpirion App Note regarding this subject 4 The board includes a pull up for the POK signal and ready to monitor the power OK status 5 A soft start capacitor is populated on the board to provide a reasonable soft start time It can be changed as needed 6 The o...
Страница 8: ...5 L TYPICAL NOT GUARANTED J1 J3 2 CONN VERTICAL 3 POSITION SMT J5 1 CONNECTOR HEADER 8 POS 100 STR TIN J6 J7 J10 J11 4 BANANA JACK R1 1 RES 100K OHM 1 16W 1 0402 SMD R3 R7 2 RES 301K OHM 1 8W 0 1 0805 SMD R4 1 RES 12 1K OHM 1 8W 1 0805 SMD R5 1 RES 64 9K OHM 1 8W 0 1 0805 SMD R6 1 RES 430K OHM 1 8W 0 1 0805 SMD R8 1 RES 150K OHM 1 8W 0 1 0805 SMD R10 1 RES 4 42K OHM 1 8W 1 0805 SMD TP1 TP5 TP13 TP...
Страница 9: ...npirion is believed to be accurate and reliable Enpirion assumes no responsibility for its use or for infringement of patents or other third party rights which may result from its use Enpirion products are not authorized for use in nuclear control systems as critical components in life support systems or equipment used in hazardous environment without the express written authority from Enpirion ...
Страница 10: ...QI EVB EN5319QI EVB EP5348UI EVB EN5339QI EVB EN6347QI ES1010SI EN2390QI EV1340QI EN23F2QI EV1380QI EN6360QA EN63A0QA EN5395QI EN2360QI EN5396QI EP53A8LQA EN6360QI EP5362QI EN6337QA EP53A8HQA EN5367QI EN2340QI EN5366QI EN6310QA EY1602SI ADJ EP53A7LQI EP5358LUA ER2120QI EN5364QI EC7401QI EC2630QI EN6347QA EP5388QI EN5394QI EP5348UI EN5335QI EP5357HUI EN5336QI EP5368QI EN5337QI ES1030QI EP5358HUI EN...
