EMC1001-1-AFZQ-TR SMSC, EMC1001-1-AFZQ-TR Datasheet

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EMC1001-1-AFZQ-TR

Manufacturer Part Number
EMC1001-1-AFZQ-TR
Description
Board Mount Temperature Sensors SMBus Temp Snsr
Manufacturer
SMSC
Datasheet

Specifications of EMC1001-1-AFZQ-TR

Lead Free Status / Rohs Status
Lead free / RoHS Compliant
PRODUCT FEATURES
The EMC1001 is a tiny SMBus temperature sensor with
±1.5
SOT23-6, the EMC1001 provides an accurate, low-cost,
low-current, solution for critical temperature monitoring
in a PC or embedded applications.
The EMC1001 generates two separate interrupts with
programmable thermal trip points. The
operates as a thermostat with programmable threshold
and hysteresis. The
as a maskable SMBus alert with programmable
window comparator limits, or as a second
output. An efficient fan control system can be created
since this output may be used to control a fan.
A power down mode extends battery life in portable
applications.
Each part number may be configured to respond to one
of four separate SMBus addresses.
SMSC EMC1001
°
C accuracy and two interrupts. Packaged in a
General Description
Temp Diode
Switching
Current
Internal
ALERT
delta-sigma
output can be configured
10-bit
ADC
Temperature
THERM
Register
Simplified Block Diagram
THERM
DATASHEET
output
EMC1001
Status Register
Self Contained Internal Temperature Sensor
Small 6-lead SOT lead-free RoHS compliant
SMBus address selected by external resistor
Maskable Interrupt using
One-shot Command during standby
Low Power, 3.0V to 3.6V Supply
SMBus 2.0 Compliant interface
Programmable temperature conversion rate
Desktop and Notebook Computers
Thermostats
Smart batteries
Industrial/Automotive
Other Electronic Systems
— 0.25°C resolution
— ±1.5°C Accuracy 40°C to 85°C
packages
— Select 1 of 4 per package, 8 addresses available
— 47uA at 0.0625 Conversions per Second (Typical)
— 4.8uA in Standby (Typical)
Address Pointer Register
Conversion Rate Register
High Limit Registers
Low Limit Registers
THERM Limit Register
THERM Hysteresis Register
Configuration Register
1.5°C SMBus
Temperature Sensor in
Miniature SOT-23
EMC1001
Interrupt Masking
Features
Applications
ALERT
SMCLK
SMDATA
ALERT
THERM
Revision 1.6 (01-29-07)
Datasheet

Related parts for EMC1001-1-AFZQ-TR

EMC1001-1-AFZQ-TR Summary of contents

Page 1

... PRODUCT FEATURES General Description The EMC1001 is a tiny SMBus temperature sensor with ° ±1.5 C accuracy and two interrupts. Packaged in a SOT23-6, the EMC1001 provides an accurate, low-cost, low-current, solution for critical temperature monitoring embedded applications. The EMC1001 generates two separate interrupts with programmable thermal trip points ...

Page 2

... EMC1001-AFZQ-TR for 6 pin, SOT 23 Lead-Free RoHS compliant package EMC1001-1-AFZQ-TR for 6 pin, SOT 23 Lead-Free RoHS compliant package See Table 1.2, "SMBus Address Configuration Information," on page 3 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © 2007 SMSC or its subsidiaries. All rights reserved. ...

Page 3

... SMCLK Figure 1.1 EMC1001 Pin Configuration Table 1.1 Pin Description DESCRIPTION Logic output that can be used to turn on/off a fan or throttle a CPU clock in the event of an over-temperature condition. This is an open-drain output. This pin is sampled following power up and the value of the pull ...

Page 4

... Revision 1.6 (01-29-07) 1.5°C SMBus Temperature Sensor in Miniature SOT-23 Table 1.3 Absolute Maximum Ratings -0.3 to 5.0 -0.3 to 5.5 pins -0 -25 to +125 -55 to +150 Refer to JEDEC Spec. J-STD-020 TBD 111.5 2000 4 DATASHEET Datasheet RATING UNIT °C ° C/W V SMSC EMC1001 ...

Page 5

... Input High Level Input Low Level Input High/Low Current Hysteresis Input Capacitance Output Low Sink Current SMBus Timing Clock Frequency Spike Suppression SMSC EMC1001 Table 2.1 Electrical Characteristics = -25°C to +125°C, Typical values 27°C unless otherwise noted A A SYMBOL MIN TYP ...

Page 6

... BUF T 0.6 HD:STA T 0.6 SU:STA T 0.6 SU:STO T 0.3 HD:DAT T 100 SU:DAT T 1.3 LOW T 0.6 HIGH T * 300 300 R Note 2.1 C 0.6 400 b )+50nS SMB 6 DATASHEET Datasheet UNITS CONDITIONS μ s μ s μ s μ s μ μ s μ *Min = 20+0. *Min = 20+0. SMSC EMC1001 ...

Page 7

... Datasheet Chapter 3 System Management Bus Interface Protocol A host controller, such as an SMSC I/O controller, communicates with the EMC1001 via the two wire serial interface named SMBus. The SMBus interface is used to read and write registers in the EMC1001, which is a slave-only device. A detailed timing diagram is shown in ...

Page 8

... SMBus Addresses The EMC1001 is available in two versions, each of which has four 7-bit slave addresses that are enabled based on the pull-up resistor on the determines the slave address per SMBus interface with an invalid slave address or invalid protocol results in no response from the device and does not affect its register contents ...

Page 9

... The EMC1001 has two basic modes of operation: Run Mode: In this mode, the EMC1001 continuously converts temperature data and updates its registers. The rate of temperature conversion is configured as shown in Standby Mode: In this mode, the EMC1001 is placed in standby to conserve power as described in Section 4.5 on page 4 ...

Page 10

... Internal or Remote Diode Figure 4.2 shows a detailed block diagram of the temperature measurement circuit. The EMC1001 incorporates switched capacitor technology that integrates the temperature diode ΔV bias currents. The negative terminal, DN, for the temperature diode is internally biased with a forward diode voltage referenced to ground. ...

Page 11

... SMBALERT# signal. One or more as a wired-or bus to a common input. The / pin resets when the EMC1001 responds to an alert response address (ARA=0001 ALERT THERM2 100) sent by the host, and if the out of limit condition no longer exists, but it does not reset if the error condition remains ...

Page 12

... THERM Limit - THERM Hysterisis Figure 4.4 THERM Response to THERM Limit Exceeded 4.5 Standby Mode The EMC1001 can be set to standby mode (low power) by setting a bit in the Configuration Register as described in Section 4.8 on page remains enabled. When the EMC1001 is in standby mode, a One-Shot command measurement can be initiated ...

Page 13

... The EMC1001 uses an interlock mechanism that locks the low byte value when the high byte register is read. This prevents updates to the low byte register between high byte and low byte reads. This interlock mechanism requires that the high byte register always be read prior to reading the low byte register ...

Page 14

... Table 4.6 shows the conversion rate and the associated Table 4.6 Conversion Rates CONVERSION RATE TYPICAL QUIESCENT CURRENT (μ A) 0.0625 0.125 0.25 0 Reserved 14 DATASHEET Datasheet DEFAULT pin is configured as signal THERM2 signal. If THERM2 signal and bit 7 is ignored 109 182 326 SMSC EMC1001 ...

Page 15

... EMC1001 is in run mode. 4.13 SMBus Timeout Enable The EMC1001 has an SMBus timeout feature. Bit 7 of the SMBus Timeout Enable register enables this function when set to 1 (the default setting is 0). When this feature is enabled, the SMBus will timeout after approximately 25ms of inactivity. ...

Page 16

... INDEX AREA (D/2 x E1/ TOP VIEW C SEATING PLANE ccc C SIDE VIEW LEADS Figure 5.1 EMC1001, 6 Pin SOT Package Outline; 1.6mm Body Width, 0.95mm Pitch SEE DETAIL "A" END VIEW H A2 GAUGE PLANE A 0.25 NOTES: 1. "N" IS THE TOTAL NUMBER OF LEADS . 2. TRUE POSITION SPREAD TOLERANCE IS ± 0.10mm AT MAXIMUM MATERIAL CONDITION. ...

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