cat6095 ON Semiconductor, cat6095 Datasheet

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cat6095

Manufacturer Part Number
cat6095
Description
Digital Output Temperature Sensor
Manufacturer
ON Semiconductor
Datasheet
Digital Output Temperature Sensor
FEATURES
PIN CONFIGURATION
Note: For the location of Pin 1, please consult the corresponding
PIN FUNCTIONS
© 2008 SCILLC. All rights reserved.
Characteristics subject to change without notice
For Ordering Information details, see page 19.
A
-20°C to +125°C Operating Temperature Range
Supply Range: 3.0V to 3.6V
I
JEDEC compliant for DDR3 DIMM applications
Schmitt Triggers and Noise Suppression Filters
on SCL and SDA Inputs
Low Power CMOS Technology
RoHS-compliant 2 x 3 x 0.75mm TDFN and 2 x 3
x 0.5mm UDFN packages
2
¯¯¯¯¯¯
EVENT
0
Name
C /SMBus Interface
package drawing.
, A
SDA
SCL
V
V
CC
SS
1
, A
2
Description
Device Address Input
Serial Data Input/Output
Serial Clock Input
Open-drain Event Output
Power Supply
Ground
V
A
A
A
SS
UDFN (HU3)
TDFN (VP2)
0
1
2
1
2
3
4
8
7
6
5
V
EVENT
SCL
SDA
CC
1
DESCRIPTION
The CAT6095 is a 12-bit (plus Sign bit) Digital Output
Temperature Sensor designed for general purpose
temperature measurements requiring a digital output.
CAT6095 measures temperature aproximately 10
times every second and compares each reading to 3
user programmed temperature limits after each new
reading. Temperature readings can be retrieved by
the host via the I
readings over and under limit conditions are signaled
on the open-drain EVENT
these temperature limits is user programmable and
the EVENT
operate either as a comparator or in an interrupt
mode.
CAT6095 is packaged in space saving TDFN or
UDFN packages. These packages offer the added
advantage of rapid response to thermal changes by
transmitting external environmental conditions directly
to the sensing element, making CAT6095 much faster
than sensors packaged in conventional SOIC and
SOT packages.
FUNCTIONAL SYMBOL
¯¯¯¯¯¯ pin response can be programmed to
A
2
, A
1
SDA
SCL
, A
0
2
C/SMBus interface. Temperature
¯¯¯¯¯¯ pin. The hysteresis for
CAT6095
V
V
CC
SS
CAT6095
Doc. No. MD-1124 Rev. B
EVENT

Related parts for cat6095

cat6095 Summary of contents

Page 1

... SS © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice DESCRIPTION The CAT6095 is a 12-bit (plus Sign bit) Digital Output Temperature Sensor designed for general purpose temperature measurements requiring a digital output. CAT6095 measures temperature aproximately 10 times every second and compares each reading to 3 user programmed temperature limits after each new reading ...

Page 2

... CAT6095 ABSOLUTE MAXIMUM RATINGS Operating Temperature Storage Temperature Voltage on any pin with respect to Ground TEMPERATURE CHARACTERISTICS T = −20°C to +125° 3 3.6 V, unless otherwise specified A CC Parameter Temperature Reading Error Class B, JC42.4 compliant ADC Resolution Temperature Resolution Temperature Conversion Time (3) Thermal Resistance θ ...

Page 3

... A valid temperature reading can not be expected sooner than approx. 100ms after V © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice to 0. 0.75V 3mA (V > 2.5V 1mA ( Test Conditions/Comments CAT6095 Min Max (2) 10 400 0.6 1.3 0.6 0.6 0 100 300 300 0.6 1.3 0.9 100 50 100 10 <2.5V 100pF L ...

Page 4

... CAT6095 FUNCTIONAL DIAGRAM Temperature Sensor Bandgap 12-bit + Sign SigmaDelta Converter Clock & Timing Generation Doc. No. MD-1124 Rev. B Lower Alarm Register Critical Temperature Register Upper Alarm Register Temperature Register Config Register Manufacture ID Capability Register Device C/SMBus Interface ...

Page 5

... Data flow is controlled by a Master device, which generates the serial clock and the START and STOP conditions. The CAT6095 acts as a Slave device. Master and Slave alternate as transmitter and receiver CAT6095 devices may be present on the bus ...

Page 6

... CAT6095 2 I C/SMBUS PROTOCOL 2 The I C/SMBus uses two ‘wires’, one for clock (SCL) and one for data (SDA). The two wires are connected to the V supply via pull-up resistors. CC Master and Slave devices connect to the bus via their respective SCL and SDA pins. The transmitting device pulls down the SDA line to ‘ ...

Page 7

... SDA OUT © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice PREAMBLE DEVICE ADDRESS 1 START t t HIGH LOW LOW t HD:DAT t t HD:STA SU:DAT CAT6095 STOP BIT ACKNOWLEDGE t SU:STO t BUF Doc. No. MD-1124 Rev. B ...

Page 8

... A CAT6095 presented with a Slave address containing a ‘1’ in the R/W ¯ ¯ position will acknowledge the Slave address and will then start transmitting data being pointed at by the current TS register address counter. The Master stops this transmission by responding with NoACK, followed by a STOP (Figure 6) ...

Page 9

... DATA (MSB SLAVE R ADDRESS DATA (MSB REGISTER SLAVE R ADDRESS ADDRESS CAT6095 DATA (LSB DATA (LSB) ...

Page 10

... In the present implementation of the CAT6095, this method may yield false results, since the various flag bits representing the relation between actual temperature and limit values, are updated only ...

Page 11

... Capability Register (address 0x00, value 0x001F) is output. © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice CAT6095 Power-On Default Read/Write 0x001F Read 0x0000 Read/Write 0x0400 Read/Write 0x00A0 Read/Write 0x0500 Read/Write Undefined Read ...

Page 12

... CAT6095 CONFIGURATION REGISTER MSB D15 D14 D13 D12 D11 D10 Hysteresis Description Bit 0: Comparator mode (default) ( Interrupt mode 0: Active low (default) ( Active high. 0: EVENT output triggered by alarm or critical temperature event (default) ( EVENT output triggered by critical temperature event only ...

Page 13

... Characteristics subject to change without notice Alarm window upper boundary temperature Alarm window lower boundary temperature Critical temperature D10 Temperature 13 CAT6095 LSB LSB LSB LSB ...

Page 14

... CAT6095 REGISTER DATA FORMAT The values used in the temperature value register and the 3 temperature trip point registers are expressed in two’s complement measured temperature value is expressed with 12-bit resolution, while the 3 trip temperature limits are set with 10-bit resolution. The total temperature range is arbitrarily defined as 256° ...

Page 15

... THE CRITICAL TEMPERATURE Figure 9. Hysteresis Detail BELOW WINDOW BIT ABOVE WINDOW BIT © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice HYSTERESIS AFFECTS THESE TRIP POINTS T H – HYST 15 CAT6095 TIME T L – HYST Doc. No. MD-1124 Rev. B ...

Page 16

... CAT6095 TYPICAL CHARACTERISTICS V = 3.3V, unless otherwise specified. CC Quiescent Current vs. Temperature 200 Vcc = 3.6V 150 100 Vcc = TEMPERATURE [°C] Doc. No. MD-1124 Rev. B Accuracy vs. Temperature 100 125 -20 16 Max Limit Min Limit 100 120 140 o TEMPERATURE [ C] © ...

Page 17

... For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC standard MO-229. © 2008 SCILLC. All rights reserved. Characteristics subject to change without notice SIDE VIEW BOTTOM VIEW A2 FRONT VIEW 17 CAT6095 b PIN#1 IDENTIFICATION Doc. No. MD-1124 Rev. B ...

Page 18

... CAT6095 UDFN 8-Pad 0.5mm (HU3 PIN #1 INDEX AREA TOP VIEW SYMBOL MIN NOM A 0.45 0.50 A1 0.00 0.02 A3 0.127 REF b 0.20 0.25 D 1.90 2.00 D2 1.50 1.60 E 2.90 3.00 E2 0.10 0.20 e 0.50 TYP K 0.10 REF L 0.30 0.35 For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) All dimensions are in millimeters. ...

Page 19

... All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard lead finish is NiPdAu. (3) This device used in the above example is a CAT6095VP2I-GT4 (i.e. TDFN, Industrial Temperature, NiPdAu, Tape & Reel, 4,000/Reel). (4) For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. © 2008 SCILLC. All rights reserved. ...

Page 20

... CAT6095 REVISION HISTORY Date Revision Description 16-Sept-08 A Initial Release 3-Nov-08 B Change logo and fine print to ON Semiconductor ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “ ...

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