SLVU047A February   2001  – March 2022 TPS2330 , TPS2331 , TPS5102

 

  1.   Trademarks
  2. 1Introduction
  3. 2InfiniBand Bulk-Power EVM
  4. 3Schematics of the EVM and the Interface
  5. 4Layouts of the EVM and the Interface Card
  6. 5EVM Setup
  7. 6Test Points
  8. 7Revision History

3 Schematics of the EVM and the Interface

To demonstrate a hot-plug or hot-removal application, the evaluation system includes two boards: one is the hot-swappable InfiniBand bulk power EVM (SLVP185 board) where the TPS2331 and TPS5102 reside and control power MOSFETs; the other is an interface card (SLVP155 board) that supplies power and a control signal to the InfiniBand bulk power EVM.

Figure 3-1 and Figure 3-2 show the schematic of the interface card and the schematic of the hot-swappable EVM, respectively.

Since the interface card was originally designed for universal application purposes, some of the components shown in the schematic above may not be on the board when shipped with this EVM kit. Refer to Table 3-1 for a complete components list.

When testing the EVM, set the slide switch S1 on the interface card (SVLP155) to HI (marked on the board), because the hot-swap controller TPS2331 is an active-high enabling device. The user can replace the TPS2331 with TPS2330 in order to evaluate the latter, but will need to switch S1 to LO to perform the evaluation.

GUID-20220309-SS0I-KBVC-QPR1-BZ5THZF93ZQ7-low.gif Figure 3-1 Schematic of the Interface Card (SLVP155)
GUID-20220309-SS0I-B39Z-N5GG-0JVQTM8RLB47-low.gif Figure 3-2 Schematic of the InfiniBand Bulk Power Evaluation Module (EVM) Part 1
GUID-20220309-SS0I-NPB7-2DHK-ZWHPJFSXK48W-low.gif Figure 3-3 Schematic of the InfiniBand Bulk Power Evaluation Module (EVM) Part 2

The schematic for InfiniBand bulk power EVM (Figure 3-2) shows three jumpers (JP1, JP2, and JP3). JP1 is used to set the DC/DC converter stage in PWM (normal) or skip (power-saving) mode. For normal operation, short JP1, then the converter will be in PWM mode. JP2 is used to shut down the DC/DC converter when it is shorted, so this jumper should not be shorted if the DC/DC conversion is required. JP3 should be shorted for InfiniBand bulk power evaluation because the InfiniBand specification recommends the power-good signal of the hot-swap stage to enable the DC/DC converter.

A 14-V Zener diode in parallel with C25 is recommended if the backplane power is noisy or has potential high voltage spikes, higher than 14 V.

Several components along with the jumpers and test points are only for evaluation purposes and are not necessary for the hot-swap, DC/DC, or both applications. Refer to the data sheets to optimize the designs.

A key is installed in the edge connector on the interface board (SLSP155) to ensure that the board can only be inserted in the correct direction.

The bills of materials (BOM) for both boards are shown in Table 3-1 and Table 3-2, respectively.

Table 3-1 Components on the Interface Card (SLVP155) Bill of Materials
Ref Des Qty Part Number Description MFG Size
C1, C3 Not used
C2 1 LSR100/16DK125 Capacitor, tantalum, 100 μF, 16 V, 10% NEMCO D case
C4, C6 Not used
C5 1 GMK325F106ZH Capacitor, ceramic, 1 μF, 16 V Taiyo Yuden 1210
C7, C9 Not used
C8 1 GRM40X7R105K16 Capacitor, ceramic, 1 μF, 16 V MuRata 0805
J3, J4 2 3267 Connector, banana jack, uninsulated Pomona
J1, J2, J5, J6 Not used
P1 1 40-22SN-11 Connector, 44-pin edge w/ mtg tabs (for 0.06-inch PCB) Cinch
R1, R2 2 Std Resistor, chip, 10 kΩ, 1/10 W, 5% Std 1206
S1 1 EG1218 SW-1C-200 MA-SL
TP1 1 240-345 Test point, red, 1 mm Farnell
TP5 1 240-333 Test point, black, 1 mm Farnell
TP2-TP4, TP6 Not used
Key 1 50-PK-3 Key for P1 (Newark #57F3275) Cinch
4 534-1804 Spacer, aluminum, 4-40 female, 0.625 inches long Mouser
4 Screw, pan head Philips, 4-40 × 0.25 inches
Table 3-2 Components of the InfiniBand Bulk Power EVM (SLVP185) Bill of Materials
Ref Des Qty Part Number Description MFR Size
C7, C9, C13 3 GRM40X7R103K25 Capacitor, ceramic, 0.01 μF, 25 V MuRata 805
C25, C26, C28, C29 4 C0805C104K5RAC Capacitor, ceramic, 0.1 μF, 50 V Kemet 805
C15 1 C0805C104K5RAC Capacitor, ceramic, 0.1 μF, 50 V Kemet 805
C27 1 PCCC1832TR–ND Capacitor, ceramic, 0.22 μF, 25 V Panasonic 805
C11 1 GRM40X7R105K16 Capacitor, ceramic, 1 μF,16 V MuRata 805
C24 1 GRM40X7R333K25 Capacitor, ceramic, 33 nF, 16 V MuRata 805
C10 1 GRM40X7R105K16 Capacitor, ceramic, 100 pF, 16 V MuRata 805
C8 2 GRM33X7R221K6 Capacitor, ceramic, 220 pF, 16 V MuRata 805
C14 GRM33X7R221K6 Capacitor, ceramic, 220 pF, 16 V MuRata 805
C6, C16, C18, C19 4 OPEN OPEN 805
C12, C17, C21 3 GMK316F225ZG Capacitor, ceramic, 2.2 μF,35 V Taiyo Yuden 1206
C2, C3 2 GMK325F106ZH Capacitor, ceramic, 10 μF,35 V Taiyo Yuden 1210
C20 1 GRM325F106ZH Capacitor, ceramic, 10 μF,35 V Taiyo Yuden 1210
C5 1 10TPB220M Capacitor, POSCAP, 220 μF, 4 V Sanyo D Case
C4 1 4TPB470M Capacitor, POSCAP, 470 μF, 4 V Sanyo D Case
C22, C23 2 OPEN OPEN D Case
C1 1 RV–35V221MH10–R Capacitor, electrolytic, 220 μF, 35 V ELNA 10 × 10 mm
P1 1 N/A 44-pin edge N/A
D1 2 MBRS340T3 Diode, Schottky, 40 V, 3 A Motorola SMC
D2 MBRS340T3 Diode, Schottky, 40 V, 3 A Motorola SMC
D3 2 SD103–AWDICT Diode, switching, 200 mA, 40 V Diodes Inc DL-35
D4 SD103–AWDICT Diode, switching, 200 mA, 40 V Diodes Inc DL-35
J17 1 PTC36SAAN Header, 4-pin, 100-mil spacing (36-pin strip) Sullins
J1 1 PTC36SAAN Header, 14-pin, 100-mil spacing (36-pin strip) Sullins
L1, L2 2 DO3316P-682 Inductor, SMT 6.8 μH, 4.4 A Colicraft
JP1, JP2, JP3 3 PTCSAAN Header, 2-pin, 100-mil spacing (36-pin strip) Sullins
R11 1 Std Resistor, chip, 0 Ω, 1/10 W, 5% Std 805
R8, R13, R15 3 Std Resistor, chip, 1 kΩ, 1/10 W, 5% Std 0805
R4 1 Std Resistor, chip, 1.21 kΩ,1/10 W, 1% Std 0805
R1, R2 2 Std Resistor, chip, 5.1 Ω, 1/10 W, 5% Std 805
R6 1 Std Resistor, chip, 5.1 kΩ,1/10 W, 5% Std 805
R18, R19 2 Std Resistor, chip, 7.5 kΩ, 1/10 W, 5% Std 805
R10 2 Std Resistor, chip, 10 kΩ, 1/10 W, 5% Std 805
R12 Std Resistor, chip, 10 kΩ, 1/10 W, 5% Std 805
R17, R20 2 Std Resistor, chip, 15 Ω, 1/10 W, 5% Std 805
R9 1 Std Resistor, chip, 82 kΩ, 1/10 W, 5% Std 805
R14 1 Std Resistor, chip, 310 Ω, 1/10 W, 1% Std 805
R5 1 Std Resistor, chip, 680 Ω, 1/10 W, 1% Std 805
R3, R16, R21 3 Std OPEN 805
R24 1 Std Resistor, chip, 1 Ω, 1/8 W, 5% Std 1206
R26 1 Std Resistor, chip, 11 Ω, 1/8 W, 5% Std 1206
R29 1 Std Resistor, chip, 75 Ω, 1/8 W, 5% Std 1206
R22, R25, R30 3 Std Resistor, chip, 100 Ω, 1/8 W, 5% Std 1206
R7 1 WSL–2512–01, 1%,R86 Resistor, chip, 0.01 Ω, 1 W, 1% Dale 2512
U2 1 TPS2330ID Single hot-swap P/controller w/ circuit breaker and PG TI SO14
U1 1 TPS5102DBT IC, dual controller, PWM/skip mode TI DBT30
TP7,TP29, TP31, TP35 4 240–333 Testpoint, black, 1 mm Farnell DBT30
TP1–TP6,TP8–TP28,TP30, TP32, TP33, TP34, TP36 32 240–345 Testpoint, red, 1 mm Farnell
Q1–Q5 5 Si4410DY MOSFET, N-ch, 30 V, 10 A, 13 mW Siliconix SO8
Shuntsfor JP1, JP2 2 929950-00 Jumper shunt 3M