© 2023
13
WHY5640 TEMPERATURE CONTROLLER
5 kΩ
SINGLE TURN
R
T
THERMISTOR
C
L
R
S
SETPOINT
TRIMPOT
V
DD
ENABLE
R
B
V
S
+
+
R
A
R
G
R
L
5 kΩ
SINGLE TURN
DISABLE
SWITCH 1
THERMOELECTRIC
+
-
1.5 kΩ
1.5 kΩ
14
13
12
11
10
9
8
1
2
3
4
5
6
7
WHY5640
TEC BOOSTER CONTROLLER
NC
NC
NC
14
13
12
11
10
9
8
1
2
3
4
5
6
7
WHY5640
TEC MASTER CONTROLLER
Figure 11. Boosting Output Current Drive
Table 6.
Maximum Output Current (Amps) - NOTE: Do not use more than five controllers together
1 WHY5640
CONTROLLER
2 WHY5640
CONTROLLERS
3 WHY5640
CONTROLLERS
4 WHY5640
CONTROLLERS
5 WHY5640
CONTROLLERS
CURRENT LIMIT
SET RESISTOR (K
Ω
)
R
A
, R
B
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
0.4
0.8
1.2
1.6
2.0
1.97
0.5
1.0
1.5
2.0
2.5
2.08
0.6
1.2
1.8
2.4
3.0
2.19
0.7
1.4
2.1
2.8
3.5
2.31
0.8
1.6
2.4
3.2
4.0
2.44
0.9
1.8
2.7
3.6
4.5
2.58
1.0
2.0
3.0
4.0
5.0
2.72
1.1
2.2
3.3
4.4
5.5
2.88
1.2
2.4
3.6
4.8
6.0
3.05
1.3
2.6
3.9
5.2
6.5
3.23
1.4
2.8
4.2
5.6
7.0
3.43
1.5
3.0
4.5
6.0
7.5
3.65
1.6
3.2
4.8
6.4
8.0
3.88
1.7
3.4
5.1
6.8
8.5
4.13
1.8
3.6
5.4
7.2
9.0
4.42
1.9
3.8
5.7
7.6
9.5
4.72
2.0
4.0
6.0
8.0
10.0
5.07
2.1
4.2
6.3
8.4
10.5
5.45
2.2
4.4
6.6
8.8
11.0
5.88
2.3
4.6
6.9
9.2
11.5
6.36
