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IN

1

2

EN

3

NC

4

OUT

5

GND

U4

TLV70033DCKR

1000pF

C12

2

1

SW2

TRIG

0.1µF

C20

10k

R14

P6.0/CB0/A0

1

P6.1/CB1/A1

2

P6.2/CB2/A2

3

P6.3/CB3/A3

4

P5.0/A8/VEREF+

5

P5.1/A9/VEREF-

6

AVCC1

7

P5.4/XIN

8

P5.5/XOUT

9

AVSS1

10

DVCC1

11

DVSS1

12

VCORE

13

P1.0/TA0CLK/ACLK

14

P1.1/TA0.0

15

P1.2/TA0.1

16

P1.3/TA0.2

17

P1.4/TA0.3

18

P1.5/TA0.4

19

P1.6/TA1CLK/CBOUT

20

P1.7/TA1.0

21

P2.0/TA1.1

22

PJ.0/TDO

23

PJ.1/TDI/TCLK

24

PJ.2/TMS

25

PJ.3/TCK

26

DVSS2

27

DVCC2

28

P4.0/PM_UCB1STE/PM_UCA1CLK

29

P4.1/PM_UCB1SIMO/PM_UCB1SDA

30

P4.2/PM_UCB1SOMI/PM_UCB1SCL

31

P4.3/PM_UCB1CLK/PM_UCA1STE

32

P4.4/PM_UCA1TXD/PM_UCA1SIMO

33

P4.5/PM_UCA1RXD/PM_UCA1SOMI

34

P4.6/PM_NONE

35

P4.7/PM_NONE

36

VSSU

37

PU.0/DP

38

PUR

39

PU.1/DM

40

VBUS

41

VUSB

42

V18

43

AVSS2

44

P5.2/XT2IN

45

P5.3/XT2OUT

46

TEST/SBWTCK

47

RST/NMI/SBWTDIO

48

PAD

U5

MSP430F5510IRGZ

SCL

SDA

VBUS

1

D-

2

D+

3

ID

4

GND

5

6

7

8

9

J1
USB

10µF

C17

J3

10µF

C11

VBUS

0.1µF

C24

VBUS

D+

D-

0.47µF

C23

1
2
3
4
5
6

J4

9.76k

R19

TRIG

Green

D4

511

R15

VIN

3p3

3p3

3p3

3p3

GND

GND

GND

GND

GND

GND

GND

GND

GND

0.1µF

C26

GND

1

2

3

JP2

VIN

1

2

3

JP4

VIN

VBUS

0.1uF

C4

IO1

1

IO2

2

GND

3

IO3

4

IO4

5

VCC

6

U1

TPD4E004DRY

VBUS

GND

GND

VBUS

VREST

TP2

SBWTDIO
SBWTCK

GND

100

R6

1.0Meg

R12

VBUS

GND

PUR

2

1

SW1

B

S

L

33

R16

33

R17

D+

D-

1.40k

R8

D+

PUR

0.22µF

C22

0.22µF

C25

1

3

4
2

G

G

12MHz

Y1

ABM8G-12.000MHZ-B4Y-T

10pF

C14

10pF

C15

5.6V

D2

GND

GND

GND

GND

EN_MSP

PWM+_MSP

Power Inputs

Power Routing

MSP430

VPUMP

1

VDD

2

FB

3

GND

4

GND

5

GND

6

SW

7

SW

8

NC

9

VBST

10

VBST

11

PVDD

12

OUT+

13

OUT-

14

REXT

15

IN-

16

IN+

17

GAIN0

18

GAIN1

19

EN

20

PAD

21

U2

DRV2700RGP

GND

0.1µF

C3

GND

0.1uF

C9

GND

GND

Green

D3

511

R13

EN

3.3k

R7

GND

1

2

3

JP3

VREST

0.1µF

C7

GND

1

2

4

3

T1

10µF

C8

1

3

2

D1

GND

GND

GND

EN

VDIV

VDRV

VDRV

GND

REXT

GND

HV

VPullDown

PWM+_MSP

22pF

C13

HV

SW3

CL-SB-22B-02T

SW4

CL-SB-22B-02T

RNET2

CNET1

CNET2

RNET1

VDIV

VDIV

CNET1

CNET2

CNET1

Rshort = !Cshort

RNET2

VDIV

Rshort = !Cshort

Output Voltage

DRV2700 HV

10k

R5

REXT

VGate

Filter_Out

Filter_Out

0.1uF

C10

GND

D2

C2

B2

B

V+
V-

A

2

D

1

U3B
OPA2376AIYZD

B1

C1

A1

A

V+
V-

A

2

D

1

U3A
OPA2376AIYZD

GND

1000pF

C5

VDRV

VDRV

0

R20

TP3

GND

Ext VIN

5.5V Vmax

1.00M

R9

1.05M

R23

750k

R10

750k

R24

RNET1

VDIV

1.24M

R11

1.24M

R25

i

HV

i

HV

i

HV

i

HV

Selection

DANGER HIGH VOLTAGE

DANGER HIGH VOLTAGE

VDRV

TP1

INPUT

0.047µF

C6

DNP

i HV

8200pF

C21

1
2

J2

392

R18

5.11k

R26

VPullDown

220

R4

VGate

10k

R28

5.1k

R27

5.1k

R22

6800pF

C19

0.01µF

C18

SW3

SW4

Ceq

Lower [nF]

Req

Lower[k

Ω

]

Ceq

Upper [nF]

Req

Upper[k

Ω

] HV [V]

Up

Up

2.710

5.502

0.022

641.97

159

Up

Down

3.717

5.502

0.022

866.20

214

Down

Up

4.505

5.502

0.022

1122.30

277

Down

Down

8.200

5.502

0.022

2050.00

504

Switch States

Equivalent Circuit

GND

1000pF

C2

10k

R3

49.9k

R2

90.9k

R1

69.8k

R21

3900pF

C1

1
2

JP1

Q1

Reference

www.ti.com

8

Reference

This section includes the DRV2700EVM-HV500 schematic, PCB layout, and bill of materials.

8.1

Schematic

Figure 18

illustrates the DRV2700EVM-HV500 schematic.

Figure 18. DRV2700EVM-HV500 Schematic

20

DRV2700EVM-HV500 High Voltage Piezo Driver Evaluation Kit

SLOU407A – April 2015 – Revised May 2015

Submit Documentation Feedback

Copyright © 2015, Texas Instruments Incorporated

Содержание DRV2700EVM-HV500

Страница 1: ...all around use and can be used not only for evaluation but can also be used for prototyping into systems for driving piezo actuators polymers valves and many other applications The EVM also contains a...

Страница 2: ...2 Pulldown Network 17 7 Input Filter 19 7 1 First Order Filter 19 7 2 Integrator 19 8 Reference 20 8 1 Schematic 20 8 2 PCB Layout 21 8 3 Bill of Materials 22 List of Figures 1 Board Diagram 6 2 Powe...

Страница 3: ...rization from U S Department of Commerce and other competent Government authorities to the extent required by those laws This provision shall survive termination or expiration of this Agreement Accord...

Страница 4: ...OLTAGE Danger High Voltage Electric shock possible when connecting board to live wire Board should be handled with care by a professional For safety use of isolated test equipment with overvoltage ove...

Страница 5: ...ccess d All interface circuits power supplies evaluation modules instruments meters scopes and other related apparatus used in a development environment exceeding 50Vrms 75VDC must be electrically loc...

Страница 6: ...er up The MSP430 has each of these control settings low which disables the DRV2700 by default Figure 1 shows the basic board diagram of the DRV2700EVM HV500 Table 2 shows the original configuration of...

Страница 7: ...cted to either power supply JP4 DRV VIN 1 DRV2700 connected to VIN power supply USB 1 X DRV2700 connected to USB power supply Open EN pulled internally to GND through DRV2700 internal resistance JP3 E...

Страница 8: ...from a standard USB port on a computer USB charger or USB battery pack This input is intended for ease of use and can be routed to power all circuitry on the EVM Additionally this input has a 5 V LED...

Страница 9: ...level high 2 5 Inputs The analog input TP1 is used for PWM and analog inputs See PWM and Analog Inputs for more information 2 6 Outputs The DRV2700EVM HV500 has a high voltage output ranging from 0 5...

Страница 10: ...ontrol Software GUI By default the DRV2700EVM HV500 can be controlled programmatically through the GUI Interface Figure 4 is a screenshot of the GUI Run the GUI by downloading it from the DRV2700EVM H...

Страница 11: ...his will cause the output to try and reflect the PWM signal coming from the microcontroller and the output will try to be a square wave The AC Mode Quick Launch frequency button will set the frequency...

Страница 12: ...ize switching losses and therefore increase efficiency A hysteretic controller is a self oscillation circuit that regulates the output voltage by keeping the output voltage within a hysteresis window...

Страница 13: ...e resistance of RFB1 and RFB2 be between 500 k and 1 M The capacitors are needed in the feedback network to increase the performance at low and high frequencies Because the charge storage is inversely...

Страница 14: ...ill increase the parasitic inductor losses Another factor to consider for transformers is the winding ratio In general if a 200 V output is desired then because the SW node can boost up to 100 V a tra...

Страница 15: ...ge the PWM signal will be attenuated but it will still somewhat reflect a PWM signal This mode can be used for audio tones however the output may not be able to drive to full scale depending on the lo...

Страница 16: ...the middle header of JP3 3 Connect the analog input signal to TP1 INPUT Note the default input range is from 0 3 3 V same as PWM signal Therefore if a voltage divider is needed R21 and R2 can be chan...

Страница 17: ...Additionally placing a resistor in series with this FET on the source side to limit the current going through the FET is recommended This resistor can be sized according to the maximum current allowed...

Страница 18: ...feedback network will be changed so this reference will become higher than VREXT and therefore turn on the output FET Figure 14 Pulldown Network Figure 15 and Figure 16 show the different discharge ti...

Страница 19: ...ions The filter can be modified by the user however be sure that the 3 dB point is no higher than 5 kHz See scopeshots in Section 3 for example waveforms 7 1 First Order Filter In order to attenuate t...

Страница 20: ...6 SW 7 SW 8 NC 9 VBST 10 VBST 11 PVDD 12 OUT 13 OUT 14 REXT 15 IN 16 IN 17 GAIN0 18 GAIN1 19 EN 20 PAD 21 U2 DRV2700RGP GND 0 1 F C3 GND 0 1uF C9 GND GND Green D3 511 R13 EN 3 3k R7 GND 1 2 3 JP3 VRES...

Страница 21: ...shows the DRV2700EVM HV500 PCB layout Figure 19 Top and Bottom Layers 21 SLOU407A April 2015 Revised May 2015 DRV2700EVM HV500 High Voltage Piezo Driver Evaluation Kit Submit Documentation Feedback C...

Страница 22: ...rata 0402 C19 1 6800pF CAP CERM 6800 pF 25 V 10 X7R 0402 GRM155R71E682KA01D Murata 0402 C20 C24 C26 3 0 1uF CAP CERM 0 1uF 6 3V 10 X5R 0402 0402 C1005X5R0J104K TDK C21 1 8200pF CAP CERM 8200 pF 16 V 1...

Страница 23: ...210K0JNED Vishay Dale R16 R17 2 33 RES 33 ohm 5 0 063W 0402 0402 CRCW040233R0JNED Vishay Dale R18 1 392 RES 392 1 0 063 W 0402 0402 CRCW0402392RFKED Vishay Dale R19 1 9 76k RES 9 76k ohm 1 0 063W 0402...

Страница 24: ...alent None Output 2 to 5 5 V Input with Low IQ 5 pin SC70 DCK 40 to 125 degC Green RoHS no Sb Br U5 1 Mixed Signal MicroController RGZ0048A RGZ0048A MSP430F5510IRGZ Texas Instruments None Y1 1 CRYSTAL...

Страница 25: ...to A Revision Page Changed GUI Interface image 10 NOTE Page numbers for previous revisions may differ from page numbers in the current version 25 SLOU407A April 2015 Revised May 2015 Revision History...

Страница 26: ...ing the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repa...

Страница 27: ...transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indic...

Страница 28: ...ified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors current sens...

Страница 29: ...REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE L...

Страница 30: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

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