파트넘버.co.kr G751 데이터시트 PDF


G751 반도체 회로 부품 판매점

Digital Temperature Sensor and Thermal Watchdog



Global Mixed-mode Technology 로고
Global Mixed-mode Technology
G751 데이터시트, 핀배열, 회로
Global Mixed-mode Technology Inc.
G751
Digital Temperature Sensor and Thermal Watchdog
with Two-Wire Interface
Features
„SMBus interface
„Programmable Trip Point (TOS) and Hysteresis
(THYST)
„Separate open-drain output pin operates as
interrupt or comparator at output
„Register readback capability
„Power up defaults permit stand-alone opera-
tion as thermostat
„Shutdown mode to minimize power consump-
tion
„Up to 8 G751s can be connected to a single
bus
Key Specifications
„Supply Voltage
„Supply Current
operating
shutdown
„Temperature Accuracy
-25°C to 100°C
-55°C to 125°C
3.0V to 5.5V
280µA (typ)
1mA (max)
2µA(typ)
±2°C (max)
±3°C (max)
Applications
„System Thermal Management
„Personal Computers
„Office Electronics
„Electronic Test Equipment
General Description
The G751 is a temperature sensor, Delta-Sigma
analog-to-digital converter, and digital over- tem-
perature detector with SMBus interface. The host
can query the G751 at any time to read temperature.
The open-drain Over temperature Shutdown (O.S.)
output becomes active when the temperature ex-
ceeds a programmable limit. This pin can operate in
either “Comparator” or “Interrupt” mode.
The host can program both the temperature alarm
threshold (TOS) and the temperature at which the
alarm condition goes away (THYST). In addition, the
host can read back the contents of the G751’s TOS
and THYST registers. The sensor powers up in Com-
parator mode with default thresholds of 50°C TOS
45°C THYST. for G751-1 and 80°C TOS , 75°C THYST
for G751-2.
Ordering Information
PART
G751-1P1
G751-2P1
G751-2P8
TOS THYST
50°C/45°C
80°C /75°C
80°C /75°C
TRANSPORT
MEDIA
2500 Units on Tape
and Reel
2500 Units on Tape
and Reel
2500 Units on Tape
and Reel
PACKAGE
8 SOP
8 SOP
8 MSOP
P1: 8 SOP; P8: 8 MSOP
Pin Configuration
Typical Application
G751
SMBDATA 1
SMBCLK 2
O.S. 3
GND 4
8 +Vs
7 A0
6 A1
5 A2
8Pin SOP/MSOP
Address(Set as
desired)
7
A0 6
A1 5
A2
1
SMBDATA
Interface SMBCLK 2
+VS 3V to 5.5V
8
Typical Bypass 0.1 µF
(Unless mounted close
to Processor)
G751
3 To Processor
O.S. Out Interrupt Line
4 O.S. Set for active low for
wire OR’d multiple
interrupt line
Ver: 2.4
Nov 26, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
1


G751 데이터시트, 핀배열, 회로
Global Mixed-mode Technology Inc.
G751
Absolute Maximum Ratings.
Supply Voltage………….…………………-0.3V to 6.5V
Voltage at any Pin……………….…-0.3V to +Vs +0.3V
Input Current at any Pin…………………………….5mA
Package Input Current…………………………….20mA
O.S. Output Sink Current………………………….10mA
O.S. Output Voltage…………………….…………..6.5V
Storage Temperature…………………-65°C to +150°C
Soldering Information, Lead Temperature
SOP Package
Vapor Phase (60 seconds)……………………….215°C
Infrared (15 seconds)……………………………..220°C
ESD Susceptibility
Human Body Model……………………………….2000V
Machine Model……………………………………...200V
Operating Ratings
Specified Temperature Range…………….TMIN to TMAX
-55°C to +125°C
Supply Voltage Range (+Vs)…………..+3.0V to +5.5V
Temperature-to-Digital Converter Characteristics
Unless otherwise noted, these specifications apply for +Vs=+3.3v Vdc. Boldface limits apply for TA=TJ=TMIN to
TMAX; all other limits TA=TJ= +25°C, unless otherwise noted.
PARAMETER
Accuracy
Resolution
Temperature Conversion Time
Quiescent Current
O.S. Output Saturation Voltage
O.S. Delay
TOS Default Temperature G751-1/G751-2
THYST Default Temperature G751-1/G751-2
CONDITIONS
TA=-25°C to +100°C
TA=-55°C to +125°C
SMBus Inactive
SMBus Active
Shutdown Mode
IOUT = 4.0mA
TYPICAL
9
100
0.25
1
50/80
45/75
LIMITS
±2.0
±3.0
1.0
0.8
1
6
UNITS
°C (max)
Bits
Ms
Ma
mA (max)
µA
V (max)
Conversions (min)
Conversions (max)
°C
°C
Block Diagram
8 +VS 3.0V - 5.5V
9-Bit Delta-Sigma
Analog-to-Digital
Converter
TOS Set Point
Register
Temperature
Threshold
Set Point
Comparator
Reset
3
O.S.
Silicon
Bandgap
Temperature
Sensor
Configuration
Register
Pointer
Register
THYST Set Point
Register
A0
A1
A2
7
6
5
Two-Wire Interface
4
1 SMBDATA
SMBCLK
2
Ver: 2.4
Nov 26, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
2




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G751 sensor

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