TC74A5-3.3VCTTR Microchip Technology, TC74A5-3.3VCTTR Datasheet - Page 3

• Manufacturer Part Number: TC74A5-3.3VCTTR
• Description: IC DGTL THERM SNSR 3.3V SOT23A-5
• Manufacturer: Microchip Technology

Specifications of TC74A5-3.3VCTTR

• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Register Bank
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 125°C
• Output Type: I²C™/SMBus™
• Output Alarm: No
• Output Fan: No
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 2°C
• Supply Current: 200µA
• Supply Voltage Range: 2.7V To 5.5V
• Resolution (bits): 8bit
• Sensor Case Style: SOT-23
• No. Of Pins: 5
• Termination Type: SMD
• Full Temp Accuracy: 3 C
• Digital Output - Bus Interface: I2C, SMBus
• Digital Output - Number Of Bits: 8 bit
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Description/function: Tiny Serial Digital Thermal Sensor
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Accuracy %: 0.5°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: Q2999442A; TC74A53.3VCTTR

DC CHARACTERISTICS (CONTINUED)
 2002 Microchip Technology Inc.
Electrical Specifications: Unless otherwise noted, V
V
SMBus/I
SMBus/I
START Condition Setup Time
(for repeated START
Condition)
START Condition Hold Time
Data In Setup Time
Data In Hold Time
STOP Condition Setup Time
Bus Free Time Prior to New
Transition
Power-on Reset Delay
Note 1: Operating current is an average value integrated over multiple conversion cycles. Transient current may
DD
= 5.0V for TC74AX-5.0VXX, -40°C ≤ T
2: Maximum ensured conversion time after Power-on Reset (POR to DATA_RDY) is 250 msec.
3: Output current should be minimized for best temperature accuracy. Power dissipation within the TC74 will
4: SDA and SCLK must be connected to V
5: V
2
2
Parameters
C Rise Time
C Fall Time
exceed this specification.
cause self-heating and temperature drift error.
properly over the wider power supply range of 2.7V to 5.5V. Each part type is tested and specified for rated
accuracy at its nominal supply voltage. As V
of V
DD
DD
= 3.3V for TC74AX -3.3 VXX. V
change.
t
t
SU(START)
t
t
SU(STOP)
H(START)
SU-DATA
t
Sym
H-DAT
t
t
IDLE
POR
t
t
R
F
A
≤ 125°C. Note 5
DD
= 5.0V for TC74AX -5.0 VXX. All part types of the TC74 will operate
1000
1250
DD
Min
4.0
4.0
4.0
4.7
—
—
—
or GND.
DD
DD
= 3.3V for TC74AX-3.3VXX and
varies from the nominal value, accuracy will degrade 1°C/V
Typ
500
—
—
—
—
—
—
—
—
Max
1000
300
—
—
—
—
—
—
—
Units
nsec
nsec
µsec
µsec
nsec
nsec
µsec
µsec
µsec
10% to 90%
90% to10%
90% SCLK to 10% SDA
V
DD
≥ V
POR
Conditions
(Rising Edge)
DS21462C-page 3
TC74