LTC2996 반도체 회로 부품 판매점
Temperature Sensor
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 Linear |
LTC2996
Temperature Sensor with
Alert Outputs
Features
n Converts Remote or Internal Diode Temperature to
Analog Voltage
n Adjustable Overtemperature and Undertemperature
Thresholds
n Voltage Output Proportional to Temperature
n ±1°C Remote Temperature Accuracy
n ±2°C Internal Temperature Accuracy
n Built-In Series Resistance Cancellation
n Open Drain Alert Outputs
n 2.25V to 5.5V Supply Voltage
n 1.8V Reference Voltage Output
n 200μA Quiescent Current
n 10-Lead 3mm × 3mm DFN Package
Applications
n Temperature Monitoring and Measurement
n System Thermal Control
n Network Servers
n Desktop and Notebook Computers
n Environmental Monitoring
Description
The LTC®2996 is a high accuracy temperature sensor
with adjustable overtemperature and undertemperature
thresholds and open drain alert outputs. It converts the
temperature of an external diode sensor or its own die
temperature to an analog output voltage while rejecting
errors due to noise and series resistance. The measured
temperature is compared against upper and lower limits
set with resistive dividers. If a threshold is exceeded, the
device communicates an alert by pulling low the corre-
spondent open drain logic output.
The LTC2996 gives ±1°C accurate temperature results
using commonly available NPN or PNP transistors or
temperature diodes built into modern digital devices. A
1.8V reference output simplifies threshold programming
and can be used as an ADC reference input.
The LTC2996 provides an accurate, low power solution
for temperature monitoring in a compact 3mm × 3mm
www.DataSheet.net/
DFN package.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Typical Application
2.25V TO 5.5V
Remote Temperature Monitor with Overtemperature
and Undertemperature Thresholds
0.1µF 1.8V
43k
36k
102k
VREF
VCC
OT OT T > 70°C
LTC2996
VTH UT UT T < –20°C
TEMPERATURE
CONTROL
SYSTEM
VTL VPTAT
D+
GND
D–
2996 TA01a
4mV/K
470pF
MMBT3904
VPTAT vs Remote
Diode Temperature
1.8
1.6
1.4
1.2
1.0
0.8
–50 –25 0 25 50 75 100 125 150
REMOTE DIODE TEMPERATURE (°C)
2996 TA01b
2996f
1
Datasheet pdf - http://www.DataSheet4U.co.kr/
LTC2996
Absolute Maximum Ratings
(Notes 1, 2)
DVC+,CD...–.,..V..P..T.A..T.,..V..R..E..F.............................................................–..0....3..V...to–0V.C3CV+to0.63VV
OT, UT, VTH, VTL.......................................... –0.3V to 6V
Operating Ambient Temperature Range
LTC2996C................................................. 0°C to 70°C
LTC2996I..............................................–40°C to 85°C
LTC2996H........................................... –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Pin Configuration
TOP VIEW
VTH
VTL
D+
D–
VPTAT
1
2
3
4
5
10 OT
9 UT
11 8 VREF
7 GND
6 VCC
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
TJMAX = 150°C, θJA = 43°C/W
EXPOSED PAD PCB GROUND CONNECTION OPTIONAL
Order Information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2996CDD#PBF
LTC2996CDD#TRPBF
LFQX
10-Lead (3mm × 3mm) Plastic QFN
0°C to 70°C
LTC2996IDD#PBF
LTC2996IDD#TRPBF
LFQX
10-Lead (3mm × 3mm) Plastic QFNwww.DataSheet.net/
–40°C to 85°C
LTC2996HDD#PBF
LTC2996HDD#TRPBF
LFQX
10-Lead (3mm × 3mm) Plastic QFN
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *Temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for information on lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
E lectrical Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C, VCC = 3.3V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
VCC
UVLO
Supply Voltage
Supply Undervoltage Lockout Threshold
ICC Average Supply Current
Temperature Measurement
VCC Falling
l 2.25
l 1.7
l
1.9
200
5.5
2.1
300
V
V
µA
VREF Reference Voltage
VREF Load Regulation
Diode Select Threshold
Remote Diode Sense Current
LTC2996
LTC2996C
LTC2996I, LTC2996H
ILOAD = ±200μA, VCC = 3.3V
(Note 3)
1.797 1.8 1.803
l 1.795 1.8 1.805
l 1.790 1.8 1.808
l ±1.5
l VCC – 600 VCC – 300 VCC – 100
–8 –192
V
V
V
mV
mV
µA
2
2996f
Datasheet pdf - http://www.DataSheet4U.co.kr/
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제조업체: Linear
( linear )
LTC2996 sensor
데이터시트 다운로드 :
[ LTC2996.PDF ]
[ LTC2996 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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