CAT34TS02VP2GT4B ON Semiconductor, CAT34TS02VP2GT4B Datasheet - Page 16

• Manufacturer Part Number: CAT34TS02VP2GT4B
• Description: IC TEMP SENSOR 2KB MEM 8-TDFN
• Manufacturer: ON Semiconductor

Specifications of CAT34TS02VP2GT4B

• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Comparator, Register Bank
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 125°C
• Output Type: I²C™, SPI™
• Output Alarm: Yes
• Output Fan: No
• Voltage - Supply: 2.97 V ~ 3.63 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-WFDFN Exposed Pad
• Digital Output - Bus Interface: I2C, SMBus
• Digital Output - Number Of Bits: 12 bit
• Supply Voltage (min): 3.3 V
• Description/function: Digital Output Temperature Sensor with On-board SPD EEPROM
• Maximum Operating Temperature: + 130 C
• Minimum Operating Temperature: - 45 C
• Supply Current: 500 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CAT34TS02
CONFIGURATION REGISTER
Notes:
(1) Can not be altered (set or cleared) as long as either one of the two lock bits, B6 or B7 is set.
(2) This bit is a polarity independent ‘software’ copy of the EVENT
(3) Writing a ‘1’ to this bit clears an event condition in Interrupt mode, but has no effect in comparator mode. When read, this bit always
(4) Cleared at power-on reset (POR). Once set, this bit can only be cleared by a POR condition.
(5) The TS powers up into active mode, i.e. this bit is cleared at power-on reset (POR). When the TS is shut down the ADC is disabled and
(6) The EVENT
(7) Can not be set as long as lock bit B6 is set.
Doc. No. MD-1129 Rev. H
TCRIT_LOCK EVENT_LOCK
B10:B9
B15:B11
B1
B8
B7
B6
B5
B4
B3
B2
B0
returns 0. Once the measured temperature exceeds the critical limit, setting this bit has no effect (see Figure 5).
the temperature reading is frozen to the most recently recorded value. The TS can not be shut down (B8 can not be set) as long as either
one of the two lock bits, B6 or B7 is set. However, the bit can be cleared at any time.
allows “wired-or” operation on the EVENT bus.
Bit
B15
RFU
B7
(1), (6)
(5)
(4)
(4)
(3)
(2)
(1)
(7)
(1)
¯¯¯¯¯¯ output is “open-drain” and requires an external pull-up resistor for either polarity. The “natural” polarity is “active low”, as it
(1)
Description
Reserved for future use ; can not be written ; should be ignored; will read as 0
00: Disable hysteresis
01: Set hysteresis at 1.5°C
10: Set hysteresis at 3°C
11: Set hysteresis at 6°C
0: Thermal Sensor is enabled; temperature readings are updated at sampling rate
1: Thermal Sensor is shut down; temperature reading is frozen to value recorded before SHDN
0: Critical trip register can be updated
1: Critical trip register cannot be modified; this bit can be cleared only at POR
0: Alarm trip registers can be updated
1: Alarm trip registers cannot be modified; this bit can be cleared only at POR
0: Always reads as 0 (self-clearing)
1: Writing a 1 to this position clears an event recording in interrupt mode only
0: EVENT output pin is not being asserted
1: EVENT output pin is being asserted
0: EVENT output disabled; polarity dependent: open-drain for B1 = 0; grounded for B1 = 1
1: EVENT output enabled
0: event condition triggered by alarm or critical temperature limit crossing
1: event condition triggered by critical temperature limit crossing only
0: EVENT output active low
1: EVENT output active high
0: Comparator mode
1: Interrupt mode
B14
RFU
B6
CLEAR
B13
RFU
B5
EVENT_STS
B12
RFU
B4
¯¯¯¯¯¯ pin, i.e. it is under the control of B3.
EVENT_CTRL TCRIT_ONLY EVENT_POL
16
B11
RFU
B3
B10
B2
HYST [1:0]
Characteristics subject to change without notice
B9
B1
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EVENT_MODE
SHDN
B8
B0