HD Series Brick Evaluation Board

Transcription

1 USER GUIDE UG:118 HD Series Brick Evaluation Board Written by: Michael DeGaetano Associate Product Line Engineer July 2014 Contents Page Features 1 Introduction 1 Features Oscilloscope probe jack for output voltage and ripple measurements Simple to use Ring lug connections Set Up 2 Recommended 3 Hardware Thermals 3 Ordering Info 3 Test Point List 4 Bill of Materials 4 Introduction The Customer Evaluation Board offers a convenient means to evaluate the performance of Vicor s high density converter (HDC) Brick module and has been optimized for user convenience. Please refer to the appropriate HDC datasheet for performance and operating limits. The datasheets are available for downloading at vicorpower.com. Please refer to Figure 1 for locations of the input and output connections as viewed from the component side. Wires may be soldered directly to the pads instead of ring lugs if desired to minimize circuit impedances. NOTE: The Customer Evaluation Board has footprints for both A and B Series HDC modules, but only one module can be populated on the evaluation board. UG:118 vicorpower.com Applications Engineering: Page 1

2 Figure 1. HDC Customer Evaluation Board layout drawing, component side Set Up The Customer Evaluation Board should be set up as follows: Note: Care should be taken to avoid reversing polarities if connecting to the opposite (solder) side of the board. +IN, IN Connect a high-quality, low noise power supply to the +IN and-in terminals of the Customer Evaluation Board. The startup slew rate of the input source should be no greater than 1 V/µs. The interconnect leads should be heavy gauge and as short as possible. Additional capacitance may have to be added on the evaluation board to make up for impedances in the interconnect leads as well as deficiencies in the source. +OUT, OUT The load should be connected to +OUT and OUT terminals of the evaluation board with short leads of suitable gauge to carry the output current and minimize losses. The evaluation board can be connected directly to the application for which the module is intended. However the interconnect impedances between the evaluation board and the application can greatly affect the transient response. For applications where transient response is critical, the user should consider mounting the HDC module directly to the target application PCB. Test points TP14 (+OUT) and TP06 (-OUT) can be used to monitor the output. Primary Control (PC) The PC can be used to disable the HDC or provide a primary referenced bias supply. The module can be disabled by connecting PC (TP03) to HDC_IN (TP05). Trim (TR) The S01 switch on the Customer Evaluation Board can be used to enable or disable output voltage trimming on the HDC. Potentiometer R12 can be adjusted to trim the output voltage of the converter. UG:118 vicorpower.com Applications Engineering: Page 2

3 GND The GND terminal of the Customer Evaluation Board is provided for basic conducted EMI testing of the HDC, during which it should be connected to earth ground. Output Voltage Measurement Jack (J103) This connector is provided to make accurate measurements of the output voltage of the HDC. Many types of scope probes may be directly connected to this point if the probe is equipped with a removable plastic sheath. To avoid creating ground loops when making measurements of the output or input voltage, these measurements should be made separately. Input Current Measurement A current probe can be passed around the +IN lead connected to the HDC. Note: The input filter consists of capacitors C01, C02, C03, C04 and common-mode inductors L100 and L101 on the Customer Evaluation Board. This filter is downstream of input current measurements. Efficiency Measurement As the HDC can deliver and consume large currents, the effect of the PCB must be considered when making an efficiency measurement. Be certain to accurately measure the voltage directly at the HDC using the appropriate pair of contact points located at the corners of the HDC. Recommended Hardware: Qty Description P/N 5 # lock washer 5 # screw 5 # hex nut Kit # is included with the Customer Evaluation Board. Kit # Thermals For most lab environments a fan blowing across the evaluation board is recommended. For additional thermal information regarding the HDC refer to the datasheet or contact Vicor Applications Engineering for assistance (800) NOTE: The HDC Customer Evaluation Board can operate between -20 to 100 C. Caution The HDC Customer Evaluation Board can comfortably operate at surface temperatures which may pose a thermal hazard to the operator. Be careful not to touch any exposed surface. HDCs may operate at potentially dangerous voltages and pose and energy hazard. The Customer Evaluation Board is not intended for use in end item equipment. Ordering Information The Customer Evaluation Board is specified by replacing the 00 suffix with CB to the appropriate HDCC model number. See: for model number listings. UG:118 vicorpower.com Applications Engineering: Page 3

4 Test Point List Table 1. Test Point descriptions Test Point Description Comments Reference TP01 +HDC_IN +IN of converter after input filter TP02 FT TP03 PC TP05 -HDC_IN -IN of converter after input filter TP06 TP07 TP09 TP10 TP11 TP12 TP14 TP52 TP51 -OUT SGND FB TR VDDB VDD +OUT +IN -IN Bill of Materials Table 2. Bill of materials Ref. Desc. Description C01 C02 CAP X7T 0.68 µf C5750X7T2W684K- TDK ND TDK C03 10% 450 V KA C04 C05 CAP X7R 2200 pf GA355QR7GF222K- Murata ND Murata C06 10% 250 V 2220 W01L C07 C11 C21 N/A N/A N/A N/A N/A C22 C23 C24 C25 C31 CAP X7R.22 µf 10% 50 V 1206 CAP ALEL 1000 µf 20% 25V SMD 13.5 X 13.5 AVX Panasonic ND PCE3462CT-ND AVX No Stock 12065C224KAT2A No Stock C33 CAP X7R 2200 pf GA355QR7GF222K- Murata ND Murata C34 10% 250 V 2220 W01L F01 N/A N/A N/A N/A N/A F02 FUSE 4 A 425 VDC FAST 3.6 X 11 SMD F03 N/A N/A N/A N/A N/A UG:118 vicorpower.com Applications Engineering: Page 4

5 Table 2 (Cont.). Bill of materials Ref. Desc. Description J101 CONN 5POS SINGLE ROW Molex Inc WM1893-ND No Stock No Stock RIGHT ANGLE J102 CONN 10POS 90DEG THRUHOLE FEMALE 0.100SPC Sullins S5519-ND Sullins PPTC052LJBN-RC J200 CON 2 CKT TERM J201 BLK SMD L100 IND COM MODE 11mH L101-25%+45% 5.0 A.70x.65 PS01 PS02 Model Specific Vicor Model Specific Vicor Model Specific R01 RES 374K OHM R02 1/8 W 1% 0805 Panasonic P374KCCT-ND Panasonic ERJ-6ENF3743V R03 RES ZERO OHM CRCW- Vishay ECT-ND Vishay JUMPER 2 A Z0EC R04 N/A N/A N/A N/A N/A R05 RES 23.7 OHM 1/8 W 1% 0805 Panasonic P23.7CCT-ND Panasonic ERJ-6ENF23R7V R08 RES 0 OHM JUMPER 1 A 0603 Panasonic P0.0GCT-ND Panasonic ERJ-3GEY0R00V R10 N/A N/A N/A N/A N/A R11 RES 20 OHM 1/4 W 1% 1206 Panasonic P20.0FCT-ND Panasonic ERJ-8ENF20R0V R12 RES 100K OHM 1/4 W 20% POT Murata ND Murata PVG3A104C01R R20 R21 RES 23.2K OHM R22 1/4 W 1% 1206 Panasonic P23.2KFCT-ND Panasonic ERJ-8ENF2322V R23 R30 R32 R33 N/A N/A N/A N/A N/A R35 R36 S01 SW DIP SPDT 1POS SMD UG:118 vicorpower.com Applications Engineering: Page 5

6 Figure 2. HDC Customer Evaluation Board Schematic The Power Behind Performance Rev /14 vicorpower.com Applications Engineering: Page 6