TC646EOA Microchip Technology, TC646EOA Datasheet - Page 2

• Manufacturer Part Number: TC646EOA
• Description: IC PWM FAN SPEED CTRLR 8-SOIC
• Manufacturer: Microchip Technology
• Type: Controller - PWM Fanr

Specifications of TC646EOA

• 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: 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

TC646
Functional Block Diagram
DS21446C-page 2
GND
V
V
C
AS
IN
F
V
SHDN
+
+
–
–
–
+
Generator
TC646
Clock
V
OTF
70mV (typ.)
SHDN
PWM
+
–
–
+
3 x T
Start-up
Missing
Detect.
Control
Timer
Pulse
Timer
Logic
PWM
OTF
10k
FAULT
2002 Microchip Technology Inc.
SENSE
V
V
DD
OUT