TC647EUA Microchip Technology, TC647EUA Datasheet - Page 6
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TC647EUA
Manufacturer Part Number
TC647EUA
Description
IC PWM FAN SPEED CTRLR 8-MSOP
Manufacturer
Microchip Technology
Type
Controller - PWM Fanr
Datasheet
1.TC647EUA.pdf
(28 pages)
Specifications of TC647EUA
Applications
Fan Controller, Brushless (BLDC)
Number Of Outputs
1
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Motor Type
PWM
No. Of Outputs
1
Output Current
5mA
Output Voltage
4.4V
Supply Voltage Range
3V To 5.5V
Driver Case Style
MSOP
No. Of Pins
8
Operating Temperature Range
-40°C To +85°C
Product
Fan / Motor Controllers / Drivers
Operating Supply Voltage
3 V to 5.5 V
Supply Current
1 mA
Mounting Style
SMD/SMT
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output
-
Voltage - Load
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TC647EUATR
Manufacturer:
MICROCHIP
Quantity:
12 000
TC647
Continuous restart mode is enabled by connecting the
FAULT output to V
shown in Figure 3-1. When so connected, the TC647
automatically attempts to restart the fan whenever a
fault condition occurs. When the FAULT output is
driven low, the V
V
FIGURE 3-1:
DS21447C-page 6
SHDN
Shutdown
Controller
Note: The parallel combination of R 3 and R 4 must be >10 k .
, initiating a reset and clearing the fault
System
From
MIN
(Optional)
MIN
R
input is momentarily pulled below
1
Fan Fault Output Circuit.
through a 0.1 µF capacitor, as
Q
2
+5V
0.01µF
From
Temp
Sensor
R
C
R
4
1
3
C
0.01 µF
B
C
1 µF
F
3
2
1
V
V
C
IN
MIN
F
+5V
8
V
TC647
DD
GND
condition. Normal fan start-up is then attempted as pre-
viously described. The FAULT output may be
connected to external logic (or the interrupt input of a
microcontroller) to shut the TC647 down if multiple fault
pulses are detected at approximately one second
intervals.
4
C
1µF
B
FAULT
SENSE
V
OUT
6
7
5
+5V
C
10 k
1 kΩ
SENSE
2002 Microchip Technology Inc.
Detected
1
0
Fault
TC647
RESET
R
SENSE
R
BASE
+12V
Fan
Q
1