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21

WHY5640 TEMPERATURE CONTROLLER

WHY5690 EVALUATION BOARD SCHEMATIC

AGN

D

1

LIM

B

2

LIM

A

3

BU

FA

4

PI

5

ER

R

6

SENS

7

+VD

D

8

OU

TA

9

+V

S

10

PGN

D

11

GN

D

12

OUTB

13

BUF

B

14

U

1

W

HY

564

0

1 2 3 4

J2 O

utput

 C

onnecto

r

1 2 3 4 5 6

J1 Input

 C

onnecto

r

Q

2

390

4

R1

7

10

K

R1

5

10

K

R1

4

3.

32

k

R1

6

3.

32

k

R1

3

10

K

R1

0

1.

5k

R9 1.

5k

C1 4.7

uF

W

CW

CC

W

R1

1 5k

W

CW

CC

W

R3 10

0K

W

CW

CC

W

R4 1.0

M

VD

D

VD

D

VD

D

VD

D

V

S

D

1

GREE

N

VD

D

V

S

VD

D

V

S

S1 SPS

T

LIM B

LIM

 A

SG

TU

RN

SG

TU

RN

CC

W

: 0

 A

M

PS

CW

: 2

 A

M

PS

SG

TU

RN

P GAI

N

I TERM

OU

A

OU

B

SE

NSO

R+

SE

NSO

R-

V

M

1

V

M

2

VD

D

V

S

PGN

D

CO

MM

O

N

OU

TA

OUTB

LIM

B

LIM

A

V

M

2

V

M

1

S+ S-

R8

1k

R7

1k

CC

W

: 0

 A

M

PS

CW

: 2

 A

M

PS

AGN

D

AGN

D

AGN

D

CW

3

W

2

CC

W

1

R1

20

K

 3266

W

2

3

1

8

4

U

3A

OP

727

A

RU

5

6

7

U

3B

OP

727

A

RU

PGN

D

GN

D

C9 0.

1UF

 50

V

 080

5

VD

D

R2

Not loaded

PGN

D

VD

D

V

S

C8

10u

Metal

 F

ilm

W

CW

CC

W

R1

2

5k

C2 4.7

uF

C3 4.7

uF

Q

1

390

4

ER

R

PI

RG

RL

CL

R6 200

K

 0805

 1

%

R5 49

.9

K

 0805

 1

%

C6

10u

Metal

 F

ilm

C5

10u

Metal

 F

ilm

C7

10u

Metal

 F

ilm

2

1

3

S2

G

T1

1M

CB

E

Se

t

Ru

n

TP2

(TP

1,

 ...

)

SI

G

TP1 SI

G

Note:

  WHY5690  Revision A  uses  68µF 

capacitors for C1, C2, and C3

Содержание WHY5640

Страница 1: ...Supply Low Cost 0 005 C Stability typical Linear PI Temperature Control High 2 2 A Output Current Control Above and Below Ambient Master Booster Operation Temperature Setpoint Heat and Cool Current L...

Страница 2: ...the Wavelength Electronics website for the most accurate up to date and easy to use SOA calculator www teamwavelength com support design tools soa tc calculator Figure 1 shows the pin layout and descr...

Страница 3: ...electric Cooler TEC or resistive heater connected directly to Pin 9 and Pin 13 on the controller as shown in Figure 3 NOTE Use a max of 5 V power supply with the test load shown Values shown can simul...

Страница 4: ...on for the sensor RT and setpoint RS resistors 8 VDD Control Electronics Supply Input Power supply input for the WHY5640 s internal control electronics Supply range input for this pin is 5 to 26 VDC 9...

Страница 5: ...Negative Temperature Coefficient thermistors OUTPUTA provides the heating current to the TEC for NTC sensors Connect OUTPUTA to the positive thermoelectric terminal when using Positive Temperature Co...

Страница 6: ...o Pin 13 Full Temp Range IS 100 mA VS 0 7 VS 0 5 V Compliance Voltage Pin 9 to Pin 13 Full Temp Range IS 1 A VS 1 2 VS 1 0 V Compliance Voltage Pin 9 to Pin 13 Full Temp Range IS 2 A VS 1 6 VS 1 4 V P...

Страница 7: ...operates directly with thermistors or RTD temperature sensors The fundamental operating principle is that the controller adjusts the TEC drive current in order to change the temperature of the sensor...

Страница 8: ...UCTIONS STANDALONE NECESSARY EQUIPMENT The following equipment is required to configure the WHY5640 for basic operation WHY5640 Temperature Controller Thermistor or other temperature sensor Peltier ty...

Страница 9: ...6 7 Use one of the sensors in the sections listed below SENSOR SELECTION Select a temperature sensor that is responsive around the desired operating temperature The temperature sensor should produce...

Страница 10: ...th reference to Pin 1 AGND If the setpoint resistor RS is larger than the RTD resistance RRTD then the control loop will produce a heating current since the temperature sensed by the RTD is below cool...

Страница 11: ...alues can be fine tuned experimentally Start with component values from Table 5 and operate the temperature controller system to determine if the load temperature settling time is satisfactory If it i...

Страница 12: ...to Pin 1 AGND with a 1 5 k resistor when using RTDs LM335 type and AD590 type temperature sensors with a resistive heater Connect the resistive heater to Pins 9 and 13 to operate INCREASING OUTPUT CU...

Страница 13: ...OLLERS 3 WHY5640 CONTROLLERS 4 WHY5640 CONTROLLERS 5 WHY5640 CONTROLLERS CURRENT LIMIT SET RESISTOR K RA RB 0 0 0 0 0 1 60 0 1 0 2 0 3 0 4 0 5 1 69 0 2 0 4 0 6 0 8 1 0 1 78 0 3 0 6 0 9 1 2 1 5 1 87 0...

Страница 14: ...ll be operating within the internalheat dissipation Safe Operating Area SOA STEP 1 INSTALL WHY5640 ON THE WHY5690 WITH HEATSINK AND FAN Match up the notch Figure 12 on the WHY5640 with the silkscreen...

Страница 15: ...lectronics to use the WHY5690 with other sensors or ranges STEP 5 ATTACHING THE VDD AND VS POWER SUPPLIES Ensure that the controller can be safely operated by checking the SOA Calculator website The V...

Страница 16: ...board toggle switch The output is enabled when the green ON LED indicator is lit NOTE Before enabling the output make sure the RUN SET switch is set to the RUN position When enabled with this switch i...

Страница 17: ...an wire configuration may be different than shown Fan can be rotated on the WHY so the location of the wires matches custom PCB WHY5640 and WHY5690 assembly instructions Figure 15 Match up the notch s...

Страница 18: ...perating thermistor resistance RT For example for a 10 k thermistor operating at 25 C choose R1 to be 20 k NOTE Pin 9 OUTA is the heating current sink and Pin 13 OUTB is the cooling current sink Figur...

Страница 19: ...S given a desired operating temperature measured in Celsius Rs 2R3 0 5 273 15 TCelsius 1mV K 10 Resistor R3 is a fixed resistance value that can be used to scale or adjust the setpoint resistor RS Sel...

Страница 20: ...2 W 3 Heatsink and 3 5CFM fan required 2 W PWHY 9 W 4 Unsafe Operating Area PWHY Power internally dissipated in the WHY5640 1 2 3 4 5 10 15 20 25 0 0 0 5 1 0 1 5 2 0 Voltage Drop Across WHY VS VLOAD V...

Страница 21: ...VS VDD VS S1 SPST LIM B LIM A SGL TURN SGL TURN CCW 0 AMPS CW 2 AMPS SGL TURN P GAIN I TERM OUT A OUT B SENSOR SENSOR VM1 VM2 VDD VS PGND COMMON OUTA OUTB LIMB LIMA VM2 VM1 S S R8 1k R7 1k CCW 0 AMPS...

Страница 22: ...ple at 25 C a 10 k thermistor has a sensitivity of 43 mV C whereas an RTD sensor has a sensitivity of 4 mV C Proportional control term may be set too high Reduce the value of the proportional term For...

Страница 23: ...40 UNC Airflow Direction MECHANICAL SPECIFICATIONS All Tolerances are 5 unless noted WEIGHTS WHY5640 0 6 oz WHS302 Heatsink 0 5 oz WXC303 4 Fan 0 3 oz PIN DIAMETER 0 020 PIN LENGTH 0 157 12 PIN MATERI...

Страница 24: ...FAN COM VM2 VM1 CW 2 AMPS CCW 0 AMPS LIM B OUTPUT A SENSOR RUN RSET CW Decr CCW Incr sec I TERM PGND VS VDD OFF ENABLE ON WAVELENGTH ELECTRONICS For use with WHY5640 CW Decr CCW Incr P GAIN SET CCW D...

Страница 25: ...BLUE PGND 2 ORANGE VS 3 RED VDD 4 BLACK COM 5 WHITE VM1 6 GREEN VM2 CABLING SPECIFICATIONS These cables are included with the WHY5690 Evaluation Board WTC3293 00101 INPUT CABLE MOLEX 43645 0400 MICRO...

Страница 26: ...eering decompiling or disassembling this product NOTICE The information contained in this document is subject to change without notice Wavelength will not be liable for errors contained herein or for...

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