VICOR PI352 series Скачать руководство пользователя страница 5 | Manualshive

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UG:307

vicorpower.com

Applications Engineering: 800 927.9474

Page 5

9.

Direct airflow from the cooling fan towards the evaluation board.

10.

Download the latest product datasheet from Vicor power product page and have it on hand for

reference

11.

Apply input voltage greater than the minimum Input under-voltage lockout start

threshold (V

UVLO_START)

.

Board Description

The following section provides a detailed description of the evaluation board features.

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Figure 1

PI352x Evaluation Board Photo,

Top Side

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Содержание PI352 series

Страница 1: ...ulators feature high efficiency with integrated controller power switches and support components all within a high density 0 4 x 0 55 System in Package SiP Required components are placed inside a demarcation featuring a solution size of 7 3 x 1 74 The demarcation includes an external inductor compensation capacitor voltage selection resistors soft start capacitor and input output capacitors to for...

Страница 2: ...re the power devices and surrounding structures can be operated safely n n Care should be taken to protect the user from accidental contact when under power n n Provide a strain relief for wires and place the system on the bench in such a way as to prevent accidental displacement from bench top n n Review thermal consideration and guideline associated with operating the evaluation board Most notab...

Страница 3: ...sufficient power and current capability 3 Electronic load Refer to the specific PI352x model datasheet to ensure the load has sufficient power handling and current capability for testing 4 Bench top cooling fan 5 Digital multi meters DMMs 6 Oscilloscope and probes 7 Interconnect wires cables and fastening hardware Features 1 Input and output lugs for source and load connections 2 Input sockets to ...

Страница 4: ...ypical bench top fan is recommended providing about 1000LFM Using the supplied rubber feet is also required in order to elevate the board about 0 4 inches off a flat surface and enable air flow underneath the PCB Power Up Procedure 1 Confirm bench equipment is powered off 2 Connect input DC power supply positive lead to VIN input lug then connect input power supply negative lead to PGND input lug ...

Страница 5: ...tasheet from Vicor power product page and have it on hand for reference 11 Apply input voltage greater than the minimum Input under voltage lockout start threshold VUVLO_START Board Description The following section provides a detailed description of the evaluation board features 1 5 2 3 6 4 7 11 8 9 12 10 11 2 7 13 13 Figure 1 PI352x Evaluation Board Photo Top Side ...

Страница 6: ...ch S101 is ON an external voltage source can control the EN pin state using the external EN test point 5 Wire to board connector J108 provides access to the regulator signal All signal pins are reference to SGND n n TRK An external capacitor may be connected between TRK pin and SGND to slow down the internal reference ramp With this pin connected to an external capacitor the output voltage will tr...

Страница 7: ...in 3 and pin 4 are used to short the Lighting LGH Constant Current CC Sense Input to SGND LGH header pin 4 is used for lighting and constant current type applications When not in use the constant current mode CC mode the LGH pin should be connected to SGND Refer to the product datasheet for availability of this pin function n n Pin 5 and pin 6 can be used to inject the isolated signal of a network...

Страница 8: ...such as C124 PWRGD Power good indicator During a regulator fault this pin is pulled internally to signal ground EN Input to the regulator If left floating or driven high VEN_MAX 5 5V regulator will be enabled SGND Internal logic ground TRK Soft start and track input An external capacitor may be connected between TRK pin and SGND to increase the rise time of the internal reference during soft start...

Страница 9: ...P216 Remote sense trim resistor test points R221 Used for easy installation of a fixed through hole resistor across the Trim pot Used only when Switch S202 is in remote sense position and switch S203 is in Adj position TP110 VDR A 5 1V auxiliary supply with max loading of 2mA If used this pin must have a series resistance such as R103 1kΩ with a decoupling cap of 0 1µF such as C124 TP111 PWRGD Pow...

Страница 10: ... 1B SYNCO 3K TEST1 2K TEST3 1J TEST4 1H TEST2 1K TRK 1C SGND EAO 1A VDR 5K VOUT PWRGD 1G VS1 PGND VIN Hidden Pins in Symbol PS101 HV ZVS Buck 10x14mm SIP EAIN SYNCI PROBE 070x135 SMD 1 VIN SYNCO EAO LGH TEST1 40538 2 3 1 S101 SW_GT11MSABE COMP TEST2 0603 R101 TEST3 TP_TH TEST4 C_TRK INT 0 047uF TRK PROBE 070x135 SMD 1 TRK 0603 C123 DNP TP_TH Do not connect SGND to PGND in layout Connection is made...

Страница 11: ...0603 R209 0603 R210 0603 R211 S1 S2 TP_TH SW_DPDT G3T22 3 2 1 6 5 4 S201 PROBE 070x135 SMD 1 EAIN_R EAIN_R TP_TH Graphical representation of Internal CONN 6PIN 3 2 1 4 5 6 J201 S1 Transconductance_OPAMP_Circuit Install shunt blocks across pins 1 2 S2 PROBE 070x135 SMD 1 COMP and across pins 5 6 for regular operation LGH COMP S5 0603 R212 R ZI S6 R ZI 5K Ohm 0603 R222 TP_TH 0603 C201 40538 2 3 1 S2...

Страница 12: ... TP209 TP210 L101 C201 R221 TP106 TP105 VRS VOUT VRS TP207 TP109 TP108 VIN VOUT VIN J101 J102 TP103 TP101 TP104 TP102 COMP EAIN_R EAO J201 PWRGD SGND TP107 TP110 TP111 TP201 TP203 TP211 TP212 TP215 TP216 TRK VDR VSP S203 EN J109 J110 S101 S202 S201 TP112 VS1 C302 C303 R307 R308 R309 Cool Power R ZVS Switching Buck Regulator PCB 44841 Reserved Serial Label Figure 5 PI352x Evaluation Board Assembly ...

Страница 13: ... R214 C124 U101 R209 R208 R207 R104 R211 R101 R103 R102 C119 C118 C117 C116 C115 C114 C110 C109 C108 C107 C106 C105 R210 R213 R215 R216 R217 R218 R219 R220 J104 J106 J105 J107 R201 R202 R203 R204 C301 LGH_IN R301 R302 R303 R304 R305 R306 Figure 6 PI352x Evaluation Board Assembly Bottom Side ...

Страница 14: ...06LF JMPR_1 JMPR_2 JMPR_3 JUMPER SOCKET 2POS 2 54mm WHANDLE 3 TE Connectivity 2 881545 2 L102 INDUCTOR WW 65nH 15 19A 0404 1 Eaton FP0404R1 R065 R PAD_1 PAD_2 PAD_3 PAD_4 ADHESIVE BACK BUMPER 7 16 x13 64 4 3M SJ5003 R101 R201 R202 R203 R204 R222 R306 RES 0Ω JUMPER 1A 0603 7 KOA Speer RK73Z1JTTD R102 RES 10kΩ 1 10W 1 0603 1 KOA Speer RK73H1JTTD1002F R103 RES 1kΩ 1 10W 1 0603 1 KOA Speer RK73H1JTTD1...

Страница 15: ... TP105 TP106 TP107 TP108 TP109 TP110 TP111 TP112 TP201 TP203 TP207 TP208 TP209 TP210 TP211 TP212 TP215 TP216 PIN RECPT 015 025 DIA 0667 SER TH 22 Mill Max 0667 0 57 15 30 27 1 U101 IC SCHMITT TRIGGER INVERTER DUAL SC70 6 1 Fairchild NC7WZ14EP6X C123 C202 C203 C301 C302 C303 D101 J104 J105 J106 J107 LGH_IN R212 R305 R307 R308 R309 NOT APPLIED 13 Reference Designator Description QTY Manufacturer Man...

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