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EMC1002 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 EMC1002
기능 Dual SmBus Sensor
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EMC1002 데이터시트, 핀배열, 회로
EMC1002
1°C Dual SMBus Sensor
with Resistance Error
Correction
PRODUCT FEATURES
Datasheet
General Description
The EMC1002 is an SMBus temperature sensor that
monitors up to two temperature zones and can generate
two system interrupts. With ±1°C measurement
accuracy, the EMC1002 provides a low-cost solution for
critical temperature monitoring applications. Extended
features include automatic resistance error correction
and programmable ideality factor configuration
eliminating both major sources of temperature
measurement error.1 The 11-bit sigma delta
temperature-to-digital converter provides superb
linearity, excellent noise immunity and repeatable
temperature readings.
The EMC1002 generates two separate interrupts with
programmable thermal trip points. The THERM output
operates as a thermostat with programmable threshold
and hysteresis. The ALERT output can be configured
as a maskable SMBus alert with programmable
window comparator limits, or a second THERM output.
The EMC1002 is pin compatible with the ADT7461,
ADM1032, LM99, and the MAX6649.
1.Patents pending.
Features
„ Resistance Error Correction
„ Ideality Factor Configuration
„ Select 1 of 4 SMBus addresses with external resistor
„ Remote Thermal Zones
±1°C Accuracy (40°C to 80°C)
— 0.125°C resolution
„ Internal Thermal Zone
±3°C Accuracy (0°C to 85°C)
„ Maskable Interrupt using ALERT
„ One-shot Command during standby
„ Programmable temperature conversion rate
„ Extended temperature (-64°C to 191°C) available
„ Over-limit filtering with consecutive counter
„ Small 8-pin MSOP lead-free RoHS Compliant
package
Applications
„ Desktop and Notebook Computers
„ Smart batteries
„ Industrial/Automotive
„ Other Electronic Systems
Simplified Block Diagram
Switching
Current
DP
DN
Internal
Temp Diode
SMSC EMC1002
EMC1002
11-bit
delta-sigma
ADC
Remote Temp
Register
Internal Temp
Register
Status Register
Address Pointer Register
Conversion Rate Register
High Limit Registers
Low Limit Registers
THERM Limit Register
THERM Hysteresis Register
Configuration Register
Interrupt Masking
DATASHEET
SMCLK
SMDATA
ALERT
THERM
Revision 1.4 (12-18-07)




EMC1002 pdf, 반도체, 판매, 대치품
1°C Dual SMBus Sensor with Resistance Error Correction
Datasheet
Table 1.3 Absolute Maximum Ratings
PARAMETER
Supply Voltage VDD
Voltage on ALERT/THERM2, SMDATA and SMCLK pins
Voltage on any other pin
Operating Temperature Range
Storage Temperature Range
Lead Temperature Range
Package Thermal Characteristics for MSOP-8 (TSSOP)
Power Dissipation
Thermal Resistance (at 0 air flow)
ESD Rating, All Pins (Human Body Model)
RATING
-0.3 to 5.0
-0.3 to 5.5
-0.3 to VDD+0.3
-40 to +125
-55 to +150
Refer to JEDEC
Spec. J-STD-020
TBD
109.6
2000
UNIT
V
V
V
°C
°C
°C/W
V
Note:
Stresses above those listed could cause damage to the device. This is a stress rating only
and functional operation of the device at any other condition above those indicated in the
operation sections of this specification is not implied. When powering this device from
laboratory or system power supplies, it is important that the Absolute Maximum Ratings not be
exceeded or device failure can result. Some power supplies exhibit voltage spikes on their
outputs when the AC power is switched on or off. In addition, voltage transients on the AC
power line may appear on the DC output. If this possibility exists, it is suggested that a clamp
circuit be used.
Revision 1.4 (12-18-07)
4
DATASHEET
SMSC EMC1002

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EMC1002 전자부품, 판매, 대치품
1°C Dual SMBus Sensor with Resistance Error Correction
Datasheet
Chapter 3 System Management Bus Interface Protocol
A host controller, such as an SMSC I/O controller, communicates with the EMC1002 via the two wire
serial interface named SMBus. The SMBus interface is used to read and write registers in the
EMC1002, which is a slave-only device. A detailed timing diagram is shown in Figure 3.1.
SMCLK
T LO W
TR
T H IG H
TF
T H D :S TA
T SU:STO
T H D :S TA
T HD:DAT T SU:DAT
T SU:STA
SMDATA
TBUF
PS
S - Start Condition
S P - Stop Condition P
Figure 3.1 System Management Bus Timing Diagram
The EMC1002 implements a subset of the SMBus specification and supports Write Byte, Read Byte,
Send Byte, Receive Byte, and Alert Response Address protocols. as shown. In the tables that describe
the protocol, the “gray” columns indicate that the slave is driving the bus.
3.1 Write Byte
START
1
The Write Byte protocol is used to write one byte of data to the registers as shown below:
Table 3.1 SMBus Write Byte Protocol
SLAVE ADDRESS
7
WR
ACK
COMMAND
ACK
11 8 1
DATA
8
ACK
1
STOP
1
3.2 Read Byte
The Read Byte protocol is used to read one byte of data from the registers as shown below:
Table 3.2 SMBus Read Byte Protocol
START SLAVE ADDRESS
17
WR
1
ACK
1
COMMAND
8
ACK
1
START
1
SLAVE ADDRESS
7
RD
1
ACK
1
DATA
8
NACK
1
STOP
1
3.3
Send Byte
The Send Byte protocol is used to set the Internal Address Register to the correct Address. The Send
Byte can be followed by the Receive Byte protocol described below in order to read data from the
register. The send byte protocol cannot be used to write data - if data is to be written to a register then
the write byte protocol must be used as described in subsection above. The send byte protocol is
shown in Table 3.3, "SMBus Send Byte Protocol," on page 7.
FIELD:
Bits:
START
1
SMSC EMC1002
Table 3.3 SMBus Send Byte Protocol
SLAVE ADDR
7
WR ACK
11
REG. ADDR
8
7
DATASHEET
ACK
1
STOP
1
Revision 1.4 (12-18-07)

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관련 데이터시트

부품번호상세설명 및 기능제조사
EMC1001

SMBus Temperature Sensor

Microchip
Microchip
EMC1001

SMBus Temperature Sensor

SMSC Corporation
SMSC Corporation

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