© 2022
2
WTC3243 TEMPERATURE CONTROLLER
14
13
12
11
10
9
8
1
2
3
4
5
6
7
VS
VSET
LIMA
LIMB
P
+1V
I
VDD
GND
OUTB
OUTA
BIAS
S+
SG
Power Drive Supply Input
Voltage Setpoint
Limit A
Limit B
Proportional Gain Resistor Connection
+1 Volt Reference
Integrator Time Constant Resistor Connection
Control Electronics Supply Input
Ground
Thermoelectric Output B
Thermoelectric Output A
Sensor Bias Current Resistor Connection
Sensor Connection & Act T Monitor
Sensor Gain Resistor Connection
QUICK CONNECT GUIDE
WTC3243 Temperature Controller Pin Layout
WTC3293 Evaluation Board Top view
WTC3243 Controller Quick Connect Diagram
WTC3243 Test Loads
page 3
WTC3293 Eval Board Electrical Schematic
!
To ensure safe operation of the WTC3243
Thermoelectric Controller, it is imperative that you
determine that the unit will be operating within the
internal heat dissipation Safe Operating Area (SOA).
Visit 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. WTC3243 Pin Layout -- Top View
Figure 2. WTC3293 Evaluation Board Top View
shows the pin layout and descriptions for the
WTC3243.
IF YOU ARE UPGRADING FROM THE WHY5640: The
position of Pin 1 on the WHY5640 is reversed (or mirrored)
relative to the position of Pin 1 on the WTC3243.
is the top view of the WTC3293, illustrating the
onboard switches, trimpots, and connectors.
is the Quick Connect schematic for the WTC3243
using a thermistor temperature sensor.
WTC3243
Sockets
Output Terminal Block
Optional Supply Input
Switchcraft RAPC712X
2.50 mm ID, 5.50 mm OD
USE
WITH
WTC3243
Temperature
Controller
ONLY
WAVELENGTH
ELECTRONICS
Input Power
Terminal Block
Output Current
Enable/Disable
Switch
Auxiliary
Terminal
Block
Monitors
Terminal
Block