Wavelength Electronics WHY5640, Datasheet And Operating Manual

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ORDERING INFORMATION
PART NO DESCRIPTION
WHY5640 ±2.2 A Temperature Controller
WHY5690 Evaluation PCB for WHY5640
WEV300 Thermal Solution Kit
WEV301 Thermal Solution Kit with +5 V Fan
WEV302 Thermal Solution Kit with +12 V Fan
WTW002 Thermal Washer for Wxx Controllers
WHS302 Heatsink for Wxx Controllers
WXC303 +5 V Fan
WXC304 +12 V Fan
WXC305 Screw Kit
PRECISION, STABILITY & VERSATILITY
The advanced and reliable circuitry of the WHY5640
Temperature Controller achieves 0.005ºC temperature
stability with thermistors. Its small, low profile package
is ideal for designs with space constraints. The linear,
PI (Proportional, Integrator) control loop offers maximum
stability and efficiency.
The WHY5640 is a general purpose analog PI control
loop for use with thermoelectrics or resistive heaters. The
WHY5640 maintains precision temperature regulation
using an active resistor bridge circuit that operates directly
with thermistors or RTD temperature sensors. (AD590 and
LM335 sensors require external circuits.) Supply up to
±2.2 A of heat and cool current to your thermoelectric from
a 5 V power supply.
FEATURES
• Small Package Size
• +5 to +26 V Control Electronics Supply
• +4.5 to +30 V Power Drive Supply
• Low Cost
• 0.005ºC 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
Limits, Proportional Gain, and Integrator Time
Constant are set with external components.
CONTENTS
QUICK CONNECT GUIDE 2
PIN DESCRIPTIONS 4
ELECTRICAL SPECIFICATIONS 6
SAFETY INFORMATION 7
OPERATING INSTRUCTIONS — STANDALONE 8
OPERATION INSTRUCTIONS — EVALUATION BOARD 15
ADDITIONAL TECHNICAL INFORMATION 18
TROUBLESHOOTING 24
MECHANICAL SPECIFICATIONS 25
CABLING SPECIFICATIONS 27
CERTIFICATION AND WARRANTY 28
e
PAGE
Pb
RoHS
Compliant
© August 2023
BUILT-IN SAFETY
To protect the device, heat and cool limits can be set
independently. This safety feature guarantees that your
thermoelectric cooler will never be driven beyond your
specified limits.
Connect two or more WHY5640 units together and drive
higher output currents.
LEADING EDGE APPLICATIONS
Onboard switches, connectors, and trimpots make
configuration and operation simple with the WHY5690
evaluation board. The WHY5640 has proven reliable in
such diverse fields as electro-optical systems, airborne
instrumentation, spectroscopic monitors, and medical
diagnostic equipment.
406-587-4910
www.teamWavelength.com
WHY5640 & WHY5690
Low Profile Temperature Controller & Evaluation Board
DATASHEET AND OPERATING GUIDE
DISCONTINUED - USE THE WHY56ND