XC3101 [TOREX]
Ultra Small Analog Output Temperature Sensor with Alarm Output Pin;
| 型号： | XC3101 |
| 厂家： | 
Torex Semiconductor |
| 描述： | Ultra Small Analog Output Temperature Sensor with Alarm Output Pin |
| 文件： | 总13页 (文件大小：225K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
XC3101Series
Ultra Small Analog Output Temperature Sensor with Alarm Output Pin
ETR0902-004
■GENERAL DESCRIPTION
The XC3101 series is a temperature sensor IC which features ultra small, low current consumption, and high-accurate
detection.
It can provide both analog and alarm outputs. The alarm output configures N-channel open-drain. The device consists of a
band-gap type temperature sensor, a voltage reference, a temperature setting tilt amplifier, a comparator, and various set
resistors.
Alarm temperature is internally set at 70℃.
When the temperature exceeds a set point, the alarm output is maintained as "Low".
When the temperature drops a pre-set hysteresis width from the set point, the alarm output is released to "High". The
hysteresis width is 5℃.
An analog voltage output is provided in a high-accuracy which is guaranteed in the operating temperature range of -40℃ to
100℃. An external A/D can monitor the sensing temperature.
The operating input voltage range is 2.7 to 5.5V. The small consumption current of 3.5μA (TYP.) is ideally suited for
temperature detection for battery devices. The ultra small USPN-4 (1.2 x 0.9 x 0.4) package is available for the high-density
board mounting in mobile device applications as well as an industry standard package SSOT-24.
■FEATURES
Operating Voltage Range
Analog Output Voltage
■APPLICATIONS
:
:
2.7V～5.5V
●
●
Base temperature monitoring on mobile devices
Internal temperature monitoring on small electronic device
1.600V (TYP.) @25℃
2.365V (TYP.) @-40℃
0.717V (TYP.) @100℃
● Temperature monitoring (LCD, Module)
● Temperature control for FAN
Analog Output Temp. Coefficient
Analog Output Temp. Range
Analog Temperature Accuracy
Alarm Temperature
:
:
:
:
:
:
:
:
:
-11.77mＶ/℃(TYP.)
-40℃～+100℃
±3.5℃
70℃±4.5℃
Alarm Hysteresis
5℃ (TYP.)
Alarm Output Configuration
Alarm Output Logic
N-channel Open-Drain
Active Low Alarm
3.5μA (TYP.) @25℃
USPN-4, SSOT-24
Low Power Consumption
Packages
Environmentally Friendly
:
EU RoHS Compliant, Pb Free
■TYPICAL PERFORMANCE
■TYPICAL APPLICATION CIRCUIT
CHARACTERISTICS
Vpull-up
XC3101AC70
VDD=2.7V,IAOUT=1uA
CIN=0.1F(ceramic),CL=0.1uF(ceramic)
2500
RPULL
VDD
Alarm Output
Analog Output
VDOUT
VAOUT
2000
1500
1000
500
VBAT
CIN
VSS
CL
-50 -25
0
25
50
75 100 125
Ambient Temperature: Ta [℃]
1/13
XC3101 Series
■PIN CONFIGURATION
■PIN ASSIGNMENT
PIN NUMBER
PIN NAME
FUNCTIONS
USPN-4
SSOT-24
2
1
4
3
1
2
3
4
VDD
VSS
Power Supply Input
Ground
VDOUT
VAOUT
Alarm Output
Analog Output
■PRODUCT CLASSIFICATION
●Ordering Information
PRODUCT NAME
ALARM TEMPERATURE (*2)
HYSTERESIS WIDTH (*3)
PACKAGE ORDER UNIT
XC3101AC70NR-G(*1)
XC3101AC707R-G(*1)
70℃
70℃
5℃
5℃
SSOT-24
USPN-4
3,000/Reel
5,000/Reel
(*1) The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.
(*2) For other alarm temperature besides 70℃, please ask Torex sales contacts.
Optional setting range is 50℃～95℃.
(*3) The hysteresis width selections are available in 5℃ and 2 other optional for alarm temperature.
PRODUCT NAME
HYSTERESIS WIDTH
DESCRIPTION
XC3101AA
XC3101AB
XC3101AC
0℃ (TYP.)
2.4℃ (TYP.)
5℃ (TYP.)
Semi-custom
Semi-custom
Standard
2/13
XC3101
Series
■BLOCK DIAGRAM
*odes inside the circuit are an ESD protection diode and a parasitic diode.
■ABSOLUTE MAXIMUM RATINGS
Ta=25℃
PARAMETER
SYMBOL
RATINGS
UNITS
Input Voltage
Analog Output Voltage
Alarm Output Voltage
Output Current
VDD
VAOUT
VSS -0.3～+7.0
VSS -0.3～VDD +0.3
VSS～VSS +7.0
30
V
V
VDOUT
V
IDOUT, IAOUT
mA
USPN-4
SSOT-24
100
Power Dissipation
Pd
mW
150
Operating Ambient Temperature
Storage Temperature
Ta
-40～+100
-55～+125
℃
℃
Tstg
3/13
XC3101 Series
■ELECTRICAL CHARACTERISTICS
XC3101AC70
Ta＝-40℃～100℃(*1)
PARAMETER
Power Input Range
Supply Current
SYMBOL
VDD
CONDITIONS
-40℃≦Ta≦100℃
MIN.
2.7
-
TYP.
-
MAX.
5.5
6
UNITS CIRCUIT
V
-
IDD
VDD=3.6V, No load
3.5
μA
②
Ta=-40℃, VDD=2.7V～5.5V, IAOUT=10μA
Ta=25℃, VDD=2.7V～5.5V, IAOUT=10μA
Ta=100℃, VDD=2.7V～5.5V, IAOUT=10μA
2324
1559
676
2365
1600
717
2406
1641
758
mV
mV
mV
①
①
①
①
①
①
①
①
Analog Output Voltage
VAOUT
Analog Output Voltage
Temperature Coefficient
Linearity Margin Error
Load Regulation
d VAOUT /dT VDD=2.7V～5.5V, IAOUT=10μA
-12.52
-11.77
-11.08
mV/℃
VDD=2.7V～5.5V, IAOUT=10μA
ΔVO/ΔIO 1μA≦IAOUT≦1ｍA
-
-
±0.4
-
10
-
%
5
-
mV
mA
Analog Output Current
IAOUT
TDET
THYS
IDOUT
VDD=2.7V～5.5V
1
V
DD=2.7V～5.5V, IAOUT=10μA
Alarm Temperature
Alarm Temperature Hysteresis Width
Alarm Output Current
65.5
70.0
TDET -5
-
74.5
TDET -3.5
-
℃
℃
①
①
③
③
Change from low temperature to high temperature
VDD=2.7V～5.5V, IAOUT=10μA
TDET -6.5
V
DD=2.7V ,VDOUT=0.3V , VAOUT=VSS
N-ch open drain output
IDOUTLEAK VDD=5.5V, VDOUT=5.5V, VAOUT=2.5V
1
-
mA
μA
Alarm Output Leakage Current
0.001
0.2
NOTE:
(*1) The value is specified in design values under shipping Inspection at a normal temperature and a high temperature.
4/13
XC3101
Series
■TEST CIRCUITS
Circuit ①
IAOUT
VAOUT
VDD
A
CIN:0.1uF
CL:0.1uF
Rpull:220kΩ
VDOUT
V
VSS
V
Circuit ②
Circuit ③
VAOUT
VDD
CIN:0.1uF
VDOUT
VSS
A
Circuit ④
VAOUT
VDD
CIN:0.1uF
VDOUT
VSS
A
5/13
XC3101 Series
■ OPERATIONAL EXPLANATION
A small ratio of the analog output (VAOUT) of the XC3101 series is fed back to one input of the error amplifier via the voltage
divider formed by the R1x and R1y resistances. The error amplifier compares this feedback voltage with the voltage of the
internal temperature sensor that is connected to its other input, and the resulting output signal from the error amplifier drives
the Pch-MOS transistor that is connected between the VDD and VAOUT pins. This cycle of events stabilizes the VAOUT voltage
via negative feedback. The internal temperature sensor is controlled so that the voltage changes on a fixed temperature
slope with respect to changes of ambient temperature, and a voltage with a fixed temperature slope is thereby output from
the analog output (VAOUT).
By comparing the internal voltage reference –which has a small temperature slope- with the voltage, divided by R1x and
R1y, of the analog output (VAOUT) –which has a fixed temperature slope-, the comparator outputs a voltage that turns the
Nch-MOS transistor ON and OFF. Since this Nch-MOS transistor is connected to the VDOUT pin, we actually control the alarm
output voltage (VDOUT).
XC3101 Series
<Analog output>
Due to its fixed temperature slope over the temperature range of -40°C to 100°C, the analog output (VAOUT) of the
XC3101 series outputs a voltage that varies linearly with changes in ambient temperature. For the XC3101A type, whose
temperature slope is -11.77mV/°C (typical), the analog output voltage at Ta=25°C is 1.6V (typical). The temperature
accuracy by means of the analog output voltage is ±3.5°C.
<Alarm output>
The alarm output (VDOUT) of the XC3101 series holds the alarm output voltage at Low (VSS potential) when the ambient
temperature rises and the alarm temperature -a threshold set inside the IC- is exceeded. When the ambient temperature
drops below the alarm temperature by an amount that is bigger than the hysteresis width, the alarm output voltage goes
High (pull-up voltage). The alarm output pin is an Nch open drain output, and thus when using alarm output, connect a
pull-up resistor to pull the voltage up to the desired voltage. If not using alarm output, pull the alarm output pin down to the
VSS potential.
<Input/output capacitor>
To stabilize the operation of the XC3101 series, connect a 0.1μF or higher output capacitor (CL) between the VAOUT and VSS
pins. To stabilize the input power supply, connect a 0.1μF or higher input capacitor (CIN).
6/13
XC3101
Series
■ NOTES ON USE
1. Please use this IC within the stated maximum ratings. For temporary, transitional voltage drop or voltage rising
phenomenon, the IC is liable to malfunction should the ratings be exceeded.
2. When the wiring impedance is high, noise wraparound due to the output current may cause analog output or alarm
output operation to become unstable. Sufficiently strengthen the VDD and GND wiring.
3. The input capacitor CIN and the output capacitor CL should be placed to the as close as possible with a shorter wiring.
4. Do not use the XC3101 series with a voltage lower than VSS applied to the alarm output pin (VDOUT).
5. If VIN changes sharply, the analog output will also change sharply, and malfunctioning of the alarm output may result. In
this event, adjust the slew-rate to less than 2 V/ms by increasing the input capacitor (CIN) or other means.
6. Torex places an importance on improving our products and its reliability.
However, by any possibility, we would request user fail-safe design and post-aging treatment on system or equipment.
7/13
XC3101 Series
■ TYPICAL PERFORMANCE CHARACTERISTICS
(1)Supply Current vs. Ambient Temperature
XC3101AC70
(2)Analog Output Voltage vs. Ambient Temperature
XC3101AC70
VDD=2.7V,IAOUT=1uA
CIN=0.1F(ceramic),CL=0.1uF(ceramic)
5.0
4.5
2500
2000
1500
1000
500
VDD=5.5V
4.0
3.5
VDD=3.6V
3.0
2.5
2.0
-50 -25
0
Ambient Temperature: Ta [℃]
25
50
75 100 125
-50 -25
0
Ambient Temperature: Ta [℃]
25 50 75 100 125
(3)Analog Output Temperature Error vs. Ambient Temperature
(4)Linearity Margin Error vs. Ambient Temperature
XC3101AC70
XC3101AC70
VDD=2.7V,IAOUT=1uA
VDD=2.7V,IAOUT=1uA
CIN=0.1F(ceramic),CL=0.1uF(ceramic)
4.0
CIN=0.1F(ceramic),CL=0.1uF(ceramic)
0.4
0.3
0.2
2.0
0.0
0.1
0
-0.1
-0.2
-0.3
-0.4
-2.0
-4.0
-50 -25
0
Ambient Temperature: Ta [℃]
25 50 75 100 125
-50 -25
0
Ambient Temperature: Ta [℃]
25 50 75 100 125
(5) Alarm Output Voltage vs. Ambient Temperature
XC3101AC70
VDD=2.7V,IAOUT=1uA,Vpull-up=0.5V
CIN=0.1F(ceramic),CL=0.1uF(ceramic),Rpull=220k
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
60 62 64 66 68 70 72 74 76
Ambient Temperature: Ta [℃]
8/13
XC3101
Series
■ TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(6) Analog Output Voltage vs. Analog Output Current
XC3101AC70
XC3101AC70
Ta=25℃,VDD=2.7V
CIN=0.1F(ceramic),CL=0.1uF(ceramic)
Ta=-40℃,VDD=2.7V
CIN=0.1F(ceramic),CL=0.1uF(ceramic)
2400
2380
2360
2340
2320
1640
1620
1600
1580
1560
0
0.3
0.6
0.9
1.2
1.5
0
0.3
0.6
0.9
1.2
1.5
Analog Output Current :IAOUT [mA]
Analog Output Current :IAOUT [mA]
XC3101AC70
Ta=100℃,VDD=2.7V
CIN=0.1F(ceramic),CL=0.1uF(ceramic)
800
750
700
650
600
0
0.3
0.6
0.9
1.2
1.5
Analog Output Current :IAOUT [mA]
(7) Alarm Output Current vs. Ambient Temperature
(8) Alarm Output Current vs. Input Voltage
XC3101AC70
XC3101AC70
VDD=2.7V,VDOUT=0.3V,VAOUT=VSS
Ta=100℃,VDOUT=0.3V,VAOUT=VSS
CIN=0.1F(ceramic),CL=0.1uF(ceramic)
6.0
CIN=0.1F(ceramic),CL=0.1uF(ceramic)
6.0
5.0
4.0
3.0
2.0
1.0
0.0
5.0
4.0
3.0
2.0
1.0
0.0
70
80
90
100
2.5
3
3.5
4
4.5
5
5.5
Input Voltage:ꢀVDD [V]
Ambient Temperature: Ta [℃]
9/13
XC3101 Series
■ PACKAGING INFORMATION
●SSOT-24
Unit: mm
2.0±0.1
+0.15
+0.15
0.25 -0.1
0.25 -0.1
+0.1
0 -0
+0.1
-0.05
+0.15
0.25 -0.1
0.125
+0.15
0.35 -0.1
0.05
1.3±0.2
●USPN-4
Unit: mm
0.9±0.05
1pin INDENT
0.2±0.05
1
2
4
3
(0.55)
USPN-4 Package
10/13
XC3101
Series
■ PACKAGING INFORMATION (Continued)
●USPN-4 Reference Pattern Layout
●USPN-4 Reference Metal Mask Design
Unit: mm
0.25
0.25
0.2
0.2
3
4
3
4
2
1
0.1
0.55
0.1
2
1
0.125
0.55
0.125
11/13
XC3101 Series
■ MARKING RULE
●SSOT-24
① represents product series
(With the orientation bar at the bottom)
4
MARK
N
PRODUCT SERIES
XC3101******-G
3
* SSOT-24 has the orientation bar marked in the bottom.
② represents production registered number
0～0, A～Z are in an order.
(G, I, J, O, Q, W excluded.)
1
2
* No character inversion used.
③④ represents production lot number.
01～09, 0A～0Z, 11～9Z, A1～A9, AA～AZ、B1～ZZ repeated.
(G, I, J, O, Q, W excluded.)
* No character inversion used.
●USPN-4
① represents product series
MARK
D
PRODUCT SERIES
XC3101******-G
①
④
②
⑤
1
4
3
③
2
②③ represents production registered number
01～09, 0A～0Z, 11～9Z, A1～A9, AA～AZ, B1～ZZ are in an order.
(G, I, J, O, Q, W excluded.)
* No character inversion used.
④⑤ represents production lot number.
01～09, 0A～0Z, 11～9Z, A1～A9, AA～AZ、B1～ZZ repeated.
(G, I, J, O, Q, W excluded.)
* No character inversion used.
12/13
XC3101
Series
1. The products and product specifications contained herein are subject to change without
notice to improve performance characteristics. Consult us, or our representatives
before use, to confirm that the information in this datasheet is up to date.
2. We assume no responsibility for any infringement of patents, patent rights, or other
rights arising from the use of any information and circuitry in this datasheet.
3. Please ensure suitable shipping controls (including fail-safe designs and aging
protection) are in force for equipment employing products listed in this datasheet.
4. The products in this datasheet are not developed, designed, or approved for use with
such equipment whose failure of malfunction can be reasonably expected to directly
endanger the life of, or cause significant injury to, the user.
(e.g. Atomic energy; aerospace; transport; combustion and associated safety
equipment thereof.)
5. Please use the products listed in this datasheet within the specified ranges.
Should you wish to use the products under conditions exceeding the specifications,
please consult us or our representatives.
6. We assume no responsibility for damage or loss due to abnormal use.
7. All rights reserved. No part of this datasheet may be copied or reproduced without the
prior permission of TOREX SEMICONDUCTOR LTD.
13/13
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