TC646 View Datasheet(PDF) - Microchip Technology
Part Name
Description
MFG CO.
'TC646' PDF : 28 Pages View PDF
TC646
+5V
Analog or Digital
Temperature
Data from one or
more Sensors
Open-Drain
Outputs
I/O0 (RESET) (Optional)
R1
I/O1 (MSB) 110 kΩ
R2
CB
CMOS I/O2
Outputs
240 kΩ
R3
360 kΩ
I/O3
(LSB)
CMOS
Microcontroller
R5
1.5 kΩ
+5V
.01 µF
R7
R4 33 kΩ
18 kΩ
+5V R8
18 kΩ
R6
1 kΩ
+12V
+5V
Fan
1 VIN
VDD 8
2 CF
+
VOUT 7
1 µF TC646
3 VAS
CB
.01 µF
4 GND
6
FAULT
5
SENSE
+ CB
1 µF R9
800Ω
+5V
R10
10 kΩ
2N2222A
0.1 µF
R11
2.2Ω
GND
INT
FIGURE 5-10:
TC646 as a Microcontroller Peripheral.
1.0
VDD = 5.5V
0.9
VDD = 5.0V
0.8
VRELEASE vs. Temperature
0.7
VDD = 4.0V
0.6
0.5
VDD = 3.0V
0.4
0˚C
25˚C
85˚C
TEMPERATURE
FIGURE 5-11:
VRELEASE vs. Temperature.
2002 Microchip Technology Inc.
DS21446C-page 17
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