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8
PTC5000 / PTC10000 / PTCEVAL
WIRE THE PTC TEMPERATURE CONTROLLER
Refer to
Table 5
to determine which con
fi
guration applies to
your application, and then reference the associated
fi
gure for
wiring instructions.
Refer to
Table 1. Pin Descriptions on page 3
for complete
information on the pin functions and operating parameters.
Refer to
Figure 3
for load and thermistor test circuit
recommendations.
Table 5. Wiring Con
fi
gurations
CONFIGURATION
DIAGRAM
TEC with Negative Temperature
Coef
fi
cient (NTC) Sensor
Figure 5
Heater with Negative Temperature
Coef
fi
cient (NTC) Sensor
Figure 6
Heater with Positive Temperature
Coef
fi
cient (PTC) Sensor
Figure 7
TEC with Positive Temperature
Coef
fi
cient (PTC) Sensor
(AD590, LM335, RTD)
Figure 8
12
11
10
9
8
7
6
5
4
3
2
*
1
Ext TEMP SET
COMMON
SENSOR GND
V+
PGND
TEC+
TEC-
ENABLE
COMMON
ActT Mon
SetT Mon
TTL-Compatible
Enable = HI
(Optional Input)
DVM
Note: Current flows from TEC+ to TEC-. Connect the
TEC+ lead to pin 6, and the TEC- lead to pin 5. Keep the
wires as short as possible to reduce the voltage drop at
high current.
Use caution when the PTC is combined with a PLD laser
driver: if the TEC or thermistor is connected to the laser
diode, two power supplies are required and must float
independently of each other.
* Pin 1 is the pin farthest from the fan
.
Thermistor
See Note
V
V+ = 5 to 30 VDC
-
+
-
+
Optional External Setpoint
-
+
Figure 5. Wiring Diagram for TEC Operating with
Negative Temperature Coef
fi
cient Sensor
TTL-Compatible
Enable = HI
(Optional Input)
DVM
-
+
Optional External Setpoint
V
V+ = 5 to 30 VDC
Keep the wires to the heater as short as possible to reduce
the voltage drop at high current.
Use caution when the PTC is combined with a PLD laser
driver: if the heater or thermistor is connected to the laser
diode, two power supplies are required and must float inde-
pendently of each other.
* Pin 1 is the pin farthest from the fan.
NTC Sensor
Heater
-
+
12
11
10
9
8
7
6
5
4
3
2
*
1
Ext TEMP SET
COMMON
SENSOR GND
V+
PGND
TEC+
TEC-
ENABLE
COMMON
ActT Mon
SetT Mon
Figure 6. Wiring Diagram for Heater and
Negative Temperature Coef
fi
cient Sensor
TTL-Compatible
Enable = HI
(Optional Input)
DVM
-
+
Optional External Setpoint
V
Keep the wires to the heater as short as possible to reduce
the voltage drop at high current.
Use caution when the PTC is combined with a PLD laser
driver: if the heater or thermistor is connected to the laser
diode, two power supplies are required and must float inde-
pendently of each other.
* Pin 1 is the pin farthest from the fan.
PTC Sensor
Heater
V+ = 5 to 30 VDC
-
+
12
11
10
9
8
7
6
5
4
3
2
*
1
Ext TEMP SET
COMMON
SENSOR GND
V+
PGND
TEC+
TEC-
ENABLE
COMMON
ActT Mon
SetT Mon
Figure 7. Wiring Diagram for Heater
and Positive Temperature Coef
fi
cient Sensor
