TC646EUA Microchip Technology, TC646EUA Datasheet - Page 17

• Manufacturer Part Number: TC646EUA
• Description: IC PWM FAN SPEED CTRLR 8-MSOP
• Manufacturer: Microchip Technology
• Type: Controller - PWM Fanr

Specifications of TC646EUA

• 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

FIGURE 5-10:
FIGURE 5-11:
Data from one or
Analog or Digital
2002 Microchip Technology Inc.
more Sensors
Temperature
+5V
0.9
0.8
0.7
0.6
1.0
0.5
0.4
GND
Microcontroller
TC646
0˚C
V
Open-Drain
V
V
RELEASE
V
Outputs
Outputs
DD
DD
CMOS
DD
CMOS
= 4.0V
= 5.0V
= 5.5V
as a Microcontroller Peripheral.
vs. Temperature.
I/O0
I/O2
I/O3
INT
I/O1
(RESET)
(LSB)
(MSB)
+5V
110 k
240 k
360 k
1.5 k
(Optional)
R
R
R
R
1 k
1
2
3
5
R
6
18 k
V
RELEASE
TEMPERATURE
R
+5V
4
33 k
18 k
25˚C
.01 F
R
C
R
7
V
B
vs. Temperature
8
DD
= 3.0V
.01 F
+
1 F
C
1
2
B
3
4
C
V
V
GND
F
IN
AS
TC646
SENSE
FAULT
V
V
OUT
DD
8
7
6
5
+5V
10 k
+5V
0.1 F
1 F
+
R 10
C
DS21446C-page 17
B
85˚C
TC646
800
R
9
+12V
Fan
2N2222A
2.2
R 11