Fairchild FEBSPM7_M02MTCA Manuale utente

User Guide for

FEBSPM7_M02MTCA

Evaluation Board

Motion SPM®7 Series

Featured Fairchild Products:

FSB70250

FSB70450

FSB70550

FSB70325

FSB70625

Direct questions or comments

about this evaluation board to:

“Worldwide Direct Support”

Fairchild Semiconductor.com

Table of Contents

1. Introduction............................................................................................................................... 3

1.1. Description ....................................................................................................................... 3

1.2. Features ............................................................................................................................ 3

2. Evaluation Board Specifications............................................................................................... 4

3. Photographs............................................................................................................................... 5

4. Printed Circuit Board ................................................................................................................ 6

4.1. External Connection......................................................................................................... 8

5. Schematic.................................................................................................................................. 9

5.1. Circuit Description ......................................................................................................... 10

6. Thermal performance.............................................................................................................. 11

6.1. Thermal Photo (without Heatsink)................................................................................. 11

6.2. Thermal Photos (with a Heatsink of 6.5 K/W Mounted on Bottom Side)..................... 12

7. Bill of Materials ...................................................................................................................... 13

8. Revision History ..................................................................................................................... 14

1. Introduction

This user guide supports the evaluation kit for the Motion SPM®7 Series. It should be

used in conjunction with the Motion SPM®7 datasheets as well as Fairchild’s application

notes and technical support team. Please visit Fairchild’s website at

www.fairchildsemi.com.

1.1. Description

Fairchild’s Motion SPM®7 Series provides efficient motor control for energy restricted

small power inverter driven application when space is constrained, such as circulation

pump, compact fan.

Motion SPM®7 series integrates six fast-recovery MOSFETs (FRFET®) and one three-

phase High Voltage ICs (HVIC). Motion SPM®7 series reduces board space by utilizing

an ultra-compact 12.9 mm x 12.9 mm package and by incorporating built-in HVIC that

provide single supply MOSFET gate driving capability. The Motion SPM®7 series offers

designers high reliability with integrated Under-Voltage Lockout (UVLO), Thermal

Sensing Function (VTS) and Over-Current Protection (OCP).

1.2. Features

250 V/ 500 V 3-phase FRFET Inverter Including HVIC

Max. RDS(ON) - FSB70250: 3.4 Ω; FSB70450: 2.2 Ω; FSB70550:1.85 Ω,

FSB70325: 1.4 Ω; FSB70625: 0.8 Ω

Separate Open-Source Pins from Low-Side MOSFETs for Three-Phase Current-

Sensing

Active-HIGH Interface, Works with 3.3 / 5 V Logic Schmitt-Trigger Input

Optimized for Low Electromagnetic Interference

HVIC Temperature-Sensing Built-In for Temperature Monitoring

HVIC for Gate Driving with Under-Voltage Protection and Interlock Function

Isolation Rating: 1500 VRMS / Minimum

Moisture Sensitive Level (MSL) 3

RoHS Compliant

Figure 1. Block Diagram

2. Evaluation Board Specifications

All data for this table was measured at an ambient temperature of 25°C.

Table 1. Summary of Features and Performance

Description

Symbol

Min.

Typ.

Max.

Unit

Positive DC Bus Link Input

V_dcb(1)

120

375

V_dcb(2)

120

250

DC voltage Output

V15

Logic 1 input

VIH

2.4

Logic 0 input

VIL

0.8

Fault Output

/Fo

Analog Output Range

Vsig_a(3)

Bus Voltage Sensing

Vs_dcb

8.4

mV/V

Phase Current Sensing

mV/A

Dead Time

tdead

500

PWM Switching Frequency

tPWM

kHz

Temperature Sensing

Vts (4)

mV/°C

Notes:

1. FSB70250, FSB70450 and FSB70550.

2. FSB70325 and FSB70625.

3. Analog Outputs include: three phase current sensing is_U, is_V, is_W; Temperature Sensing

Vts, Bus Voltage Sensing Vs_dcb.

4. Temperature of SPM®7 Module, for more detail, please refer to the corresponding SPM®7

data sheet.

3. Photographs

Figure 2. Photograph (54.7 x 55.1 mm2) Top View

Figure 3. Photograph (54.7 x 55.1 mm2) Bottom View

4. Printed Circuit Board

Figure 4. Top Side

Figure 5. Inner layer 1

Figure 6. Inner layer 2

Figure 7. Bottom Side

4.1. External Connection

Figure 8. CONN1 and J1 Connector Physical View

Table 2. Connector J1:

Pin#

Signal Name

Description

15 V

+15 V Out of Internal Power Supply, Supply Max. 50 mA to the

External.

/Fo

Fault Output

VS_dcb

DC-bus Voltage Sensing

Gate Signal for High-Side Phase U

Gate Signal for High-Side Phase V

Gate Signal for High-Side Phase W

Gate Signal for Low-Side Phase U

Gate Signal for Low-Side Phase V

Gate Signal for Low-Side Phase W

Vts

Voltage Output of HVIC Temperature

is_U

Current Sensing Phase U

is_V

Current Sensing Phase V

is_W

Current Sensing Phase W

others

GND_A

Analog Ground

Table 3. Connector CONN1:

Pin#

Signal Name

Description

Motor Connection (Phase U)

Motor Connection (Phase V)

Motor Connection (Phase W)

V_dcb

Positive DC Bus Link Input

GND_P

Power Ground

5. Schematic

Figure 9. Evaluation Board Schematic

ES1J

1 2

23 24

ES1J

C11

25V

10uF

1mH 0.2A

FDLL4148

CONN1

Vcc

PWM IC1

FSQ500L

BC847B

MM3Z15VB

200mW

LED_15V

LED_0805

MM3Z12VC

200mW

680R

VB(U)

VCC

COM

OUT(WL)

Vs(v )

Vs(u)

VB(U)

IN(UL)

/Fo

VB(V)

Vcc

IN(VH)

IN(VL)

VB(W)

IN(WH)

IN(WL)

Vts

OUT(VL)

OUT(UL)

VS(W)

OUT(UH)

VS(U)

OUT(VH)

VS(V)

VB(V)

VB(W)

IN(UH)

Cf od

Csc

COM

/Fo

Vts

Cfod

Csc

OUT(WH)

Vs(w)

IC2

FSB70450

Vts

15V

C22

25V

1nF C23

25V

1nF C24

25V

3.3nF C25

25V

1nF

R25 100R

R27 100R

15V Vcc

C28

25V

330pF

C12

25V

10uF

C27

25V

330pF

C26

25V

330pF

15V

R19

n.a.

R20

n.a.

R23 0.047R

R22 0.047R

R21 0.047R

Size Title Rev

Date: Sheet of

Fairchild Semiconductor GmbH

Einsteinring 28, D-85609 Aschheim

A3 1 1Friday , Nov ember 28, 2014

SPM7 Power Stage

denotes SMD part

n.a. = not assembled

25V

10uF

50V

100nF

50V

100nF

C10

50V

100nF

R28 0R

25V

22uF

GND_P1

25V

22uF

0.25W

330K

R10

0.25W

330K

25V

22uF

C15

25V

330pF

V_dcb

C14

630V

100nF

VS_dcb

GND_A1

Vts

10K

VS_dcb

/Fo

120R

R11

5.6K

15R

R12 100R

R13 100R

R14 100R

R15 100R

R16 100R

R17 100R

R18 4.7K

R24 100R

R5 1R

V_dcb

R26 2.2K

V_dcb

C16

25V

330pF C17

25V

330pF C18

25V

330pF C19

25V

330pF C20

25V

330pF C21

25V

330pF

C7 22uF

C8 22uF

C9 22uF

RSFJL

5.1. Circuit Description

Motion SPM®7 series is used as a highly integrated power module in this evaluation

board to realize an Inverter for Low Power BLDC or PMSM 3-phase motors.

The board need to be supplied on the DC-Bus with a DC-voltage specified prior. The

auxiliary-power-supply works as Buck-Converter and offers a stabilized 15 V to operate

the module. The voltage is also accessible on the connectors to supply a Microcontroller-

board if necessary. A LED indicates the presence of 15 V.

On the same connector of the DC-Bus, a motor can be connected to the Inverter output

terminals U, V, W.

The internal High-Side-Drivers of SPM®7 need bootstrap circuit which consists of

bootstrap capacitor, charge resistor and a fast diode.

The Shunts can be configured as 3-Shunt-sensing or single-Shunt-sensing.

Short-circuit protection is routed to just the W-phase and works in single-Shunt-sensing

for the complete module. In 3-Shunt-sensing, only W-phase is protected. A low-pass

Filter on Current-sensing avoids sensing of HF-peaks. The signal of fault output pin /FO

drops from high level to low when a fault, such as Under-Voltage (UV) or Short-circuit

Current (SC), occurs. A pull-up resistor and filter capacitor are added to generate a signal

out of the open-drain output.

RC low pass filters are used between input connector from a MCU (or DSP) and Logic-

input signal pins of Motion SPM®7 series to suppress any occurring disturbances. All

Analog-Signals are filtered to provide smooth signals on the pins.

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