TMP01ES Analog Devices Inc, TMP01ES Datasheet - Page 12

• Manufacturer Part Number: TMP01ES
• Description: IC SENSOR TEMP/CONTROLLER 8SOIC
• Manufacturer: Analog Devices Inc

Specifications of TMP01ES

• Rohs Status: RoHS non-compliant
• Sensing Temperature: -55°C ~ 125°C
• Output Type: Open Collector
• Voltage - Supply: 4.5 V ~ 13.2 V
• Accuracy: ±0.5°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Ic Output Type: Voltage
• Sensing Accuracy Range: ± 1.5°C
• Supply Current: 450µA
• Supply Voltage Range: 4.5V To 13.2V
• Sensor Case Style: SOIC
• No. Of Pins: 8
• Msl: MSL 1 - Unlimited
• Temperature Sensor Function: Temp Sensor
• Package Type: SOIC N
• Operating Temperature (min): -55
• Operating Temperature (max): 150C
• Operating Temperature Classification: Military
• Accuracy %: 1°C
• Rohs Compliant: No
• Lead Free Status / Rohs Status: Not Compliant

TMP01
The last class of high power devices discussed here are
thyristors, which includes SCRs and Triacs. Triacs are a useful
alternative to relays for switching ac line voltages. The 2N6073A
shown in Figure 21 is rated to handle 4A (rms). The opto-
isolated MOC3011 Triac features excellent electrical isolation
from the noisy ac line and complete control over the high power
Triac with only a few additional components.
HIGH CURRENT SWITCHING
Internal dissipation due to large loads on the TMP01 outputs
causes some temperature error due to self-heating. External
transistors remove the load from the TMP01, so that virtually
no power is dissipated in the internal transistors and no self-
heating occurs. Figure 22 through Figure 24 show a few
examples using external transistors. The simplest case, using a
single transistor on the output to invert the output signal is
shown in Figure 22. When the open collector of the TMP01
turns on and pulls the output down, the external transistor Q1
base is pulled low, turning off the transistor. Another transistor
can be added to reinvert the signal as shown in Figure 23. Now,
when the output of the TMP01 is pulled down, the first transis-
tor, Q1, turns off and its collector goes high, which turns Q2 on,
pulling its collector low.
R1
R2
R3
1
2
3
4
VREF
HYSTERESIS
GENERATOR
NC = NO CONNECT
TEMPERATURE
COMPARATOR
SENSOR AND
REFERENCE
VOLTAGE
WINDOW
Figure 21. Controlling the 2N6073A Triac
TMP01
VPTAT
R1
R2
R3
1
2
3
4
8
7
6
5
V+ = 5V
NC
NC
VREF
GENERATOR
HYSTERESIS
1
2
3
300Ω
TEMPERATURE
MOC9011
COMPARATOR
SENSOR AND
REFERENCE
VOLTAGE
WINDOW
Figure 24. Darlington Transistor Can Handle Large Currents
6
5
4
150Ω
2N6073A
TMP01
LOAD
VPTAT
AC
Rev. E | Page 12 of 20
8
7
6
5
V+
4.7kΩ
Thus, the output taken from the collector of Q2 is identical
to the output of the TMP01. By picking a transistor that can
accommodate large amounts of current, many high power
devices can be switched.
R1
R2
R3
An example of a higher power transistor is a standard Darlington
configuration as shown in Figure 24. The part chosen, TIP-110,
can handle 2 A continuous which is more than enough to
control many high power relays. In fact, the Darlington itself
can be used as the switch, similar to MOSFETs and IGBTs.
2N1711
4.7kΩ
R1
R2
R3
Figure 23. Second Transistor Maintains Polarity of TMP01 Output
1
2
3
4
12V
VREF
TIP-110
1
2
3
4
Figure 22. An External Resistor Minimizes Self-Heating
GENERATOR
HYSTERESIS
VREF
TEMPERATURE
COMPARATOR
SENSOR AND
HYSTERESIS
GENERATOR
REFERENCE
VOLTAGE
WINDOW
TEMPERATURE
COMPARATOR
I
SENSOR AND
C
REFERENCE
VOLTAGE
WINDOW
RELAY
TMP01
VPTAT
MOTOR
SWITCH
TMP01
VPTAT
8
7
6
5
8
7
6
5
V+
4.7kΩ
V+
4.7kΩ
Q1
2N1711
4.7kΩ
Q1
2N1711
I
Q2
C
2N1711
I
C