TC652CFVUA Microchip Technology, TC652CFVUA Datasheet - Page 4

• Manufacturer Part Number: TC652CFVUA
• Description: IC TEMP SENSR/DC FAN CNTRL MSOP8
• Manufacturer: Microchip Technology
• Series: FanSense™r

Specifications of TC652CFVUA

• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Oscillator, Register Bank
• Sensor Type: Internal
• Sensing Temperature: 35°C, 55°C Trip Points
• Output Type: Active Low
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 2.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification

TC652/TC653
2.0
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
DS21453B-page 4
(8-Pin MSOP)
Pin No.
1
2
3
4
5
6
7
8
PIN DESCRIPTIONS
Symbol
SENSE
PIN FUNCTION TABLE
FAULT
SHDN
T
PWM
GND
GND
V
OVER
DD
Power Supply Input. May be independent of fan power supply.
Fan Fault Alert, Active-Low Output. FAULT goes low to indicate a fan FAULT condition.
When FAULT occurs, the device is latched in Shutdown mode with PWM low. Toggling
the SHDN pin or cycling the V
unconditionally remain high during shutdown.
Fan Shutdown, Active-Low Input. During Shutdown mode the chip still monitors
temperature and T
Ground return for all TC652/TC653 functions.
Detect Fan Pulses Input. Pulses are detected at this pin as fan rotation chops the current
through the sense resistor, R
Over-Temperature Alert, Active-Low Output.
Ground.
PWM Fan Drive Output. Pulse width modulated rail-to-rail logic output. Nominal
Frequency is 15Hz.
OVER
is low if temperature rises above factory set point.
SENSE
DD
will release the part and fan from shutdown. FAULT will
. The absence of pulses indicates a Fan Fault.
Description
©
2002 Microchip Technology Inc.