HELIX MxC 200 Manuel utilisateur

1.30.19

MxC® 200 PoL EVB Manual

MxC® 200 Evaluation Boards

Helix Semiconductors offers four MxC 200

DC-DC PoL (Point of Load) Evaluation Board

configurations: Single 12V output, Triple

24V/12V/6V outputs, regulated 5V output

and a 4x voltage boost output. Additionally,

a voltage boost+LED driver is offered. Each

evaluation board is self- contained and

ready for use.

Wiring connection diagram, schematic and

BOM for each board are included in this

manual. Gerber files are available upon

request.

Target Applications

Telecom Blades, Data Centers

PoE: Wireless Access Points, Security

Cameras, VoIP Phones

Electric & Hybrid Automobiles

Industrial Controllers, HVAC

IoT & IIoT Gateways

Features

Four Configurations

oSingle 12V Output

oTriple 24V/12V/6V Outputs

oRegulated 5V Output

oVoltage Boost

15W Output (Multiple Outputs)

oPout = Pout1 + Pout2 + Pout3

Idle Operation: Active, No-Load

o1mW Non-Switching

o48mW Switching

> 97% Efficiency @ 2.6W

> 90% Efficiency @ 15W

Fault Detectors

oOutput Over Current

oThermal Shutdown

External Control Signals

oEnable

oExternal Clock Enable

oExternal Clock Input

Single 12V Output Triple 24/12/6V Outputs Regulated 5V Output

P/N: MxC 291-EB3-C P/N: MxC 290-EB9-C P/N: MxC 292-EB3-C

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MxC® 200 PoL EVB Manual

1. Table of Contents

1. Table of Contents..................................................................................................................... 2

2. Table of Figures ....................................................................................................................... 2

3. Table of Tables......................................................................................................................... 3

4. MxC 291 Single 12V Output EVB ............................................................................................. 4

5. MxC 290 Triple 24V/12V/6V Output EVB................................................................................ 8

6. MxC 292 +5V Buck Reg. Output EVB ..................................................................................... 13

7. MxC 281 4x Voltage Boost Output EVB................................................................................. 18

8. MxC 284 Voltage Boost with LED Current Source Output EVB ............................................. 22

9. Output Current Sharing ......................................................................................................... 26

10. Performance Data.................................................................................................................. 27

10.1. Operational Guidelines .................................................................................................. 27

11. Flying Capacitor Value Verses Efficiency ............................................................................... 28

2. Table of Figures

Figure 1: MxC 291 Single 12V Output EVB Block Diagram ............................................................. 4

Figure 2: MxC 291 Single 12V Output EVB Standalone Wiring Diagram ........................................ 4

Figure 3: MxC 291 Single 12V Output EVB SMPS Wiring Diagram ................................................. 5

Figure 4: MxC 291 Single 12V Output EVB Schematic .................................................................... 6

Figure 5: MxC 291 Single 12V Output EVB Efficiency Curve .......................................................... 7

Figure 6: MxC 290 Triple Output EVB Block Diagram..................................................................... 8

Figure 7: MxC 290 Triple Output EVB Standalone Wiring Diagram................................................ 8

Figure 8: MxC 290 Triple Output Evaluation Board Synchronized to SMPS Wiring Diagram......... 9

Figure 9: MxC 290 Triple 24V/12V/6V Output EVB Schematic..................................................... 11

Figure 10: MxC 290 Triple 24V/12V/6V Output EVB Efficiency Curve ......................................... 12

Figure 11: MxC 292 +5V Buck Reg. Output EVB Block Diagram ................................................... 13

Figure 12: MxC 292 +5V Buck Reg. Output EVB Standalone Wiring Diagram.............................. 13

4x Voltage Boost Output 4x Voltage Boost + LED

P/N: MxC 281-EB3-C P/N: MxC 284-EB2-C

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MxC® 200 PoL EVB Manual

Figure 13: MxC 292 +5V Buck Reg. Output EVB Schematic .......................................................... 16

Figure 14: MxC 292 w/Synchronous 5V Buck Reg. Output EVB Schematic.................................. 16

Figure 15: MxC 292 w/Synchronous Buck 5V Output EVB Efficiency Curve ................................ 17

Figure 16: MxC 281 4x Voltage Boost Output EVB Block Diagram ............................................... 18

Figure 17: MxC 281 4x Voltage Boost Output EVB Standalone Wiring Diagram.......................... 18

Figure 18: MxC 281 4x Voltage Boost Output EVB Schematic...................................................... 21

Figure 19: MxC 281 4x Voltage Boost Output EVB Efficiency Curve ............................................ 21

Figure 20: MxC 284 4x Voltage Boost + LED EVB Block Diagram.................................................. 22

Figure 21: MxC 284 4x Voltage Boost + LED EVB Standalone Wiring Diagram ............................ 22

Figure 22: MxC 284 4x Voltage Boost + LED EVB Schematic ........................................................ 25

Figure 23: MxC 284 4x Voltage Boost with LED Back Panel ......................................................... 25

Figure 24: MxC 291 Output Current Sharing 120W 48V-to-12V Voltage Converter.................... 26

Figure 25: Efficiency Measurement Wiring Diagram.................................................................... 27

Figure 26: Typical Capacitance verses DC Bias, 50V Device ......................................................... 28

3. Table of Tables

Table 1: MxC 291 Single 12V Output EVB Connector –J1.............................................................. 5

Table 2: MxC 291 Single 12V Output EVB Bill of Materials (BOM)................................................. 6

Table 3: MxC 290 Triple 24V/12V/6V Output EVB Connector –J1............................................... 10

Table 4: MxC 290 Triple 24V/12V/6V Output EVB Bill of Materials (BOM).................................. 12

Table 5: MxC 292 +5V Buck Reg. Output EVB Connector –J1...................................................... 14

Table 6: MxC 292 +5V Buck Reg. Output EVB Bill of Materials (BOM)......................................... 15

Table 7: MxC 281 4x Voltage Boost Output EVB Connector –J1 ................................................. 19

Table 8: MxC 281 4x Voltage Boost Output EVB Bill of Materials (BOM) .................................... 20

Table 9: MxC 284 4x Voltage Boost + LED Output EVB Connector –J1........................................ 23

Table 10: MxC 284 4x Voltage Boost + LED Output EVB Bill of Materials (BOM)......................... 24

Table 11: Revision History............................................................................................................. 29

1.30.19

MxC® 200 PoL EVB Manual

4. MxC 291 Single 12V Output EVB

The MxC 291-EB3-C Single 12V Output EVB can be operated as a standalone Divide-By-4 voltage

reducer or synchronized with a SMPS. The EVB utilizes the 2D_048_015B MxC 200 family

device.

When the MxC 291 is providing power to a SMPS, the synchronization feature of the

2D_048_015B allows the MuxCapacitor switching to slow down as the SMPS enters pulse

skipping. This operation reduces switching power losses at no-load to light-load conditions. The

EXTCLK can be provided by either a FET gate drive signal or a buck regulator’s switched output.

Both the EXTCLKSEL and EXTCLK inputs accept up to 30V signals.

The MxC 291 Single 12V Output EVB provides the highest efficiency 12 Volt output

configuration.

Figure 1: MxC 291 Single 12V Output EVB Block Diagram

1.30.19

MxC® 200 PoL EVB Manual

Figure 2: MxC 291 Single 12V Output EVB Standalone Wiring Diagram

Warning: Do not “Hot-Plug” the power supply or electronic load.

Recommended start-up procedure:

1) With power supply off, attach power supply wires.

2) With electronic load disabled (monitor mode), attach electronic load wires.

3) Turn on power supply.

4) Enable electronic load with no load current, and then ramp up load current.

Figure 3: MxC 291 Single 12V Output EVB SMPS Wiring Diagram

Table 1: MxC 291 Single 12V Output EVB Connector –J1

Pin No.

Name

Description

VIN

+48VDC Input Power Pin

GND

Power GND Pin

VOUT

+12VDC Output Power Pin

Note:

1) Due to board’s small size, thermal dissipation is limited and may exceed the over-

temperature shutdown threshold.

2) The MxC 291 can be powered from 24V delivering 6Vout.

1.30.19

MxC® 200 PoL EVB Manual

Figure 4: MxC 291 Single 12V Output EVB Schematic

Table 2: MxC 291 Single 12V Output EVB Bill of Materials (BOM)

Qty

Ref. No.

Description

Package

Manufacturer

CAP, 0.1µF±10%, 50V

0603

1608 Metric

Wurth Elektronik

WCAP-CSGP 885012206095

CAP, 4.7µF±10%, 35V

0603

1608 Metric

TDK

C1608X5R1V475M080AC

C3, C4,

C5, C6,

CAP, 10µF±10%, 50V

1210

3225 Metric

TDK

C3225X7S1H106M250AB

C1, C2

CAP, 4.7µF±10%, 100V

1210

3225 Metric

TDK

C3225X7S2A475M200AB

RES, 100KΩ±10%

0603

1608 Metric

Rohm

ESR03EZPJ104

RES, 402 KΩ±1%

0603

1608 Metric

Rohm

MCR03ERTF4023

IC, 2D_048_015B, QFN5x5,

32P 0.5

QFN32

Helix Semiconductors

2D-048-015B-QFN32-C

CONN, 6P, M, R/A, 0.100

SIP100P6

Wurth Elektronik

WR-PHD 61300611021

1.30.19

MxC® 200 PoL EVB Manual

Figure 5: MxC 291 Single 12V Output EVB Efficiency Curve

1.30.19

MxC® 200 PoL EVB Manual

5. MxC 290 Triple 24V/12V/6V Output EVB

The MxC 290-EB9-C Triple 24V/12V/6V Output EVB can be operated as a standalone fixed

frequency voltage reducer or synchronized with a SMPS. The EVB utilizes the 2D_048_015A

MxC 200 family device.

When the MxC 290 is providing power to a SMPS, the synchronization feature of the

2D_048_015A allows the MuxCapacitor switching to slow down as the SMPS enters pulse

skipping. This operation reduces switching power losses at no-load to light-load conditions. The

EXTCLK can be provided by either a FET gate drive signal or a buck regulator’s switched output.

Both the EXTCLKSEL and EXTCLK inputs accept up to 30V signals.

Figure 6: MxC 290 Triple Output EVB Block Diagram

Figure 7: MxC 290 Triple Output EVB Standalone Wiring Diagram

1.30.19

MxC® 200 PoL EVB Manual

Figure 8: MxC 290 Triple Output Evaluation Board Synchronized to SMPS Wiring Diagram

Warning: Do not “Hot-Plug” the power supply or electronic load.

Recommended start-up procedure:

1) With power supply off, attach power supply wires.

2) With electronic load disabled (monitor mode), attach electronic load wires.

3) Turn on power supply.

4) Enable electronic load with no load current, and then ramp up load current.

1.30.19

MxC® 200 PoL EVB Manual

Table 3: MxC 290 Triple 24V/12V/6V Output EVB Connector –J1

Pin No.

Name

Description

Device Enable: Input Pin, On-board 100KΩ Pull-Up, 60Vmax

0 = Disable, 1 = Enable

EXTCLKSEL

External Clock Sync Enable: Input Pin, Internal 2MΩ Pull-Down,

30Vmax

0 = Internal Clock, 1 = External Clock

EXTCLK

External Clock Sync: Input pin, Internal 2MΩ Pull-Down, 30Vmax

VIN

+48VDC Input Power Pin

GND

Power GND Pin

24VOUT

+24VDC Output Power Pin, See Note 2.

12VOUT

+12VDC Output Power Pin, See Note 2.

6VOUT

+6VDC Output Power Pin, See Note 2.

GND

Power GND Pin

Note:

1) Maximum thermal dissipation occurs when high currents are drawn from 6VOUT. Due

to board’s small size, thermal dissipation is limited and may exceed the over-

temperature shutdown threshold.

2) The 24VOUT output provides 0.5A and 12VOUT/6VOUT outputs provide 1A. Actual

delivered power depends on the output voltage of each stage.

3) The MxC 290 can be powered from 24V delivering one-half the output voltage at pins 6-

8 as stated in Table 3.

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