TC647BEOA Microchip Technology, TC647BEOA Datasheet - Page 16
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TC647BEOA
Manufacturer Part Number
TC647BEOA
Description
IC PWM FAN SPEED CTRLR 8-SOIC
Manufacturer
Microchip Technology
Type
Controller - PWM Fanr
Datasheet
1.TC647BEOA.pdf
(34 pages)
Specifications of TC647BEOA
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-SOIC (3.9mm Width)
Motor Type
PWM
No. Of Outputs
1
Output Current
5mA
Output Voltage
4.4V
Supply Voltage Range
3V To 5.5V
Driver Case Style
SOIC
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
400 uA
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:
TC647BEOA
Manufacturer:
SDB
Quantity:
6 218
Company:
Part Number:
TC647BEOATR
Manufacturer:
MICROCHIP
Quantity:
12 000
TC642B/TC647B
FIGURE 4-9:
DS21756B-page 16
V
Fire Start-up
MIN
FAULT = 1
Fan Pulse
Detected?
Power-Up
Operation
Power-on
Yes
No
Normal
Reset
(1 sec)
No
Timer
< V
SHDN
FAULT = Low,
V
V
Yes
MIN
?
Detected?
16 Pulses
Operation
Fan Fault
OUT
Normal
<V
No
Yes
= High
SHDN
Yes
No
TC642B/TC647B Behavioral Algorithm.
Shutdown
Fire Start-up
V
?
Detected?
Fan Pulse
Fan Fault
OUT
No
(1 sec)
Timer
= 0
Yes
No
V
V
MIN
MIN
Shutdown
Yes
V
OUT
> V
> V
= 0
REL
REL
?
?
No
Yes
Power-Up
Proportional to Greater
Yes
V
Pulse Detector
Clear Missing
of V
MIN
V
Operation
Fan Pulse
Detected?
IN
Normal
No
No
IN
V
No
< V
> V
OUT
or V
SHDN
OTF
MIN
?
Expired?
?
M.P.D.
Yes
No
Yes
FAULT = 0
(100 msec)
Diagnostic
Fan Pulse
Detected?
Yes
Timer
Fire
Yes
Yes
Shutdown
V
2003 Microchip Technology Inc.
TC642B Only
OUT
No
= 0
Fire Start-up
Detected?
Fan Pulse
Fan Fault
(1 sec)
Timer
V
MIN
Power-Up
No
> V
Yes
REL
?
No