TOREX XC3101 User Manual

■

XC3101 Series

Ultra Small Analog Output Temperature Sensor with Alarm Output Pin

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.

■APPLICATIONS

●

Base temperature monitoring on mobile devices

●

Internal temperature monitoring on small electronic device

● Temperature monitoring (LCD, Module)

● Temperature control for FAN

■TYPICAL APPLICATION CIRCUIT

Vpull-up

PULL

Alarm Output

Analog Output

BAT

CIN

DOUT

AOUT



FEATURES

Operating Voltage Range : 2.7V～5.5V Analog Output Voltage :

Analog Output Temp. Coefficient : -11.77mＶ/℃(TYP.) Analog Output Temp. Range : -40℃〜+100℃ Analog Temperature Accuracy : ±3.5℃ Alarm Temperature : 70℃±4.5℃ Alarm Hysteresis : 5℃ (TYP.) Alarm Output Configuration : N-channel Open-Drain Alarm Output Logic : Active Low Alarm Low Power Consumption : 3.5μA (TYP.) @25℃ Packages : USPN-4, SSOT-24

Environmentally Friendly : EU RoHS Compliant, Pb Free

1.600V (TYP.) @25℃

2.365V (TYP.) @-40℃

0.717V (TYP.) @100℃

TYPICAL PERFORMANCE CHARACTERISTICS

XC3101AC70

VDD=2.7V,I

=0.1F(ceramic),CL=0.1uF(ceramic)

2500

[mV]

AOUT

2000

1500

1000

Analog Output Voltage:　V

500

-50 -25 0 25 50 75 100 125

Ambient Temperature: Ta [℃]

AOUT

=1uA

ETR0902-004

1/13

XC3101 Series

■PIN CONFIGURATION

■PIN ASSIGNMENT

PIN NUMBER

USPN-4 SSOT-24

2 1 VDD Power Supply Input

1 2 VSS Ground

4 3 V

3 4 V

PIN NAME FUNCTIONS

Alarm Output

DOUT

Analog Output

AOUT

PRODUCT CLASSIFICATION

■

●Ordering Information

PRODUCT NAME ALARM TEMPERATURE

XC3101AC70NR-G

XC3101AC707R-G

(*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

(*1)

70℃ 5℃ 70℃ 5℃

0℃ (TYP.)

2.4℃ (TYP.) 5℃ (TYP.)

(*2)

HYSTERESIS WIDTH

Semi-custom Semi-custom

Standard

(*3)

PACKAGE ORDER UNIT

SSOT-24 3,000/Reel

USPN-4 5,000/Reel

2/13

■BLOCK DIAGRAM

*Diodes inside the circuit are an ESD protection diode and a parasitic diode.

XC3101

Series

■ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL RATINGS UNITS

Input Voltage VDD V

Analog Output Voltage V

Alarm Output Voltage V

Output Current I

Power Dissipation

Operating Ambient Temperature

Storage Temperature

USPN-4 100

SSOT-24

AOUT

DOUT

, I

DOUT

30 mA

AOUT

Ta - 4 0 ～+100 ℃

Ts t g -5 5 ～+125 ℃

-0.3～VDD +0.3 V

SS～VSS

Ta =2 5 ℃

-0.3～+7.0 V

+7.0 V

150

3/13

XC3101 Series

■ELECTRICAL CHARACTERISTICS

XC3101AC70

PARAMETER

SYMBOL

CONDITIONS MIN. TYP. MAX.

Ta ＝-40℃～100℃

UNITS CIRCUIT

Power Input Range VDD -40℃≦Ta ≦100℃ 2.7 - 5.5 V -

Supply Current

Analog Output Voltage V

Temperature Coefficient

Linearity Margin Error VDD=2.7V～5.5V, I

Load Regulation ΔVO/ΔIO 1μA≦I

Analog Output Current I

Alarm Temperature T

Alarm Temperature Hysteresis Width

Alarm Output Current I

Alarm Output Leakage Current

VDD=3.6V, No load - 3.5 6 μA ②

Ta =- 4 0 ℃, VDD=2.7V～5.5V, I

AOUT

d V

AOUT

DOUT

DOUTLEAK

Ta =2 5 ℃, VDD=2.7V～5.5V, I Ta=100℃, V

/dT

VDD=2.7V～5.5V, I

=2.7V～5.5V, I

=10μA -12.52 -11.77 -11.08

AOUT

=10μA - ±0.4 - % ①

AOUT

≦1ｍA - 5 10 mV ①

AOUT

VDD=2.7V～5.5V 1 - - mA ①

=2.7V～5.5V, I

DET

Change from low temperature to high temperature

VDD=2.7V～5.5V, I

HYS

=2.7V ,V

N-ch open drain output

VDD=5.5V, V

DOUT

=10μA

AOUT

=10μA T

AOUT

=0.3V , V

=5.5V, V

=10μA 2324 2365 2406 mV ①

AOUT

=10μA 1559 1600 1641 mV ①

AOUT

=10μA 676 717 758 mV ①

AOUT

mV/

℃

65.5 70.0 74.5 ℃ ①

-6.5 T

DET

AOUT=VSS

=2.5V - 0.001 0.2 μA ③

AOUT

1 - - mA ③

DET

-5

DET

-3.5

℃ ①

NOTE:

(*1) The value is specified in design values under shipping Inspection at a normal temperature and a high temperature.

(*1)

① Analog Output Voltage ①

4/13

■TEST CIRCUITS

Circuit ①

Circuit ②

Circuit ③

Circuit ④

CIN:0.1uF

XC3101

Series

AOUT

DOUT

:220kΩ

pull

:0.1uF

AOUT

DOUT

AOUT

DOUT

5/13

XC3101 Series

■OPERATIONAL EXPLANATION

A small ratio of the analog output (V 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 V 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 (V By comparing the internal voltage reference –which has a small temperature slope- with the voltage, divided by R1x and R

, of the analog output (V

Nch-MOS transistor ON and OFF. Since this Nch-MOS transistor is connected to the V output voltage (V

Due to its fixed temperature slope over the temperature range of -40°C to 100°C, the analog output (V 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.

The alarm output (V 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 (C pins. To stabilize the input power supply, connect a 0.1μF or higher input capacitor (C

DOUT

AOUT

) –which has a fixed temperature slope-, the comparator outputs a voltage that turns the

AOUT

) of the XC3101 series holds the alarm output voltage at Low (VSS potential) when the ambient

DOUT

) of the XC3101 series is fed back to one input of the error amplifier via the voltage

AOUT

and V

XC3101 Series

pins. This cycle of events stabilizes the V

AOUT

pin, we actually control the alarm

DOUT

) between the V

AOUT

voltage

) of the

and VSS

6/13

XC3101

■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 V

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 (V

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 (C

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.

and GND wiring.

DOUT

) or other means.

Series

7/13

XC3101 Series

■TYPICAL PERFORMANCE CHARACTERISTICS

(1)Supply Current vs. Ambient Temperature (2)Analog Output Voltage vs. Ambient Temperature

5.0

4.5

[μA]

4.0

3.5

3.0

2.5

Supply Current:　I

2.0

-50 -25 0 25 50 75 100 125

(3)Analog Output Temperature Error vs. Ambient Temperature (4)Linearity Margin Error vs. Ambient Temperature

4.0

2.0

0.0

-2.0

Analog Output Temperature Error [℃]

-4.0

-50 -25 0 25 50 75 100 125

(5) Alarm Output Voltage vs. Ambient Temperature

0.7

[V]

0.6

DOUT

0.5

0.4

0.3

0.2

0.1

Alarm Output Voltage:　V

60 62 64 66 68 70 72 74 76

XC3101AC70

VDD=5.5V

VDD=3.6V

Ambient Temperature: Ta [℃]

XC3101AC70

=0.1F(ceramic),CL=0.1uF(ceramic)

Ambient Temperature: Ta [℃]

VDD=2.7V,I

AOUT

=1uA

XC3101AC70

=0.1F(ceramic),CL=0.1uF(ceramic),Rpull=220k

VDD=2.7V,I

Ambient Temperature: Ta [℃]

=1uA,Vpull-up=0.5V

AOUT

XC3101AC70

=0.1F(ceramic),CL=0.1uF(ceramic)

2500

[mV]

AOUT

2000

1500

1000

Analog Output Voltage:　V

500

-50 -25 0 25 50 75 100 125

Ambient Temperature: Ta [℃]

VDD=2.7V,I

XC3101AC70

=0.1F(ceramic),CL=0.1uF(ceramic)

0.4

0.3

0.2

0.1

-0.1

-0.2

Linearity Margin Error [%]

-0.3

-0.4

-50 -25 0 25 50 75 100 125 Ambient Temperature: Ta [℃]

VDD=2.7V,I

AOUT

=1uA

8/13

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(6) Analog Output Voltage vs. Analog Output Current

2400

[mV]

AOUT

2380

XC3101AC70

=0.1F(ceramic),CL=0.1uF(ceramic)

Ta=-40℃,VDD=2.7V

[mV]

AOUT

1640

1620

2360

1600

2340

1580

2320

Analog Output Voltage :V

0 0.3 0.6 0.9 1.2 1.5

Analog Output Current :I

AOUT

[mA]

Analog Output Voltage :V

1560

800

[mV]

AOUT

750

XC3101AC70

=0.1F(ceramic),CL=0.1uF(ceramic)

Ta=100℃,VDD=2.7V

700

650

600

Analog Output Voltage :V

0 0.3 0.6 0.9 1.2 1.5

Analog Output Current :I

AOUT

[mA]

(7) Alarm Output Current vs. Ambient Temperature (8) Alarm Output Current vs. Input Voltage

6.0

[mA]

5.0

DOUT

4.0

3.0

2.0

1.0

Alarm Output Current: I

0.0 70 80 90 100

XC3101AC70

VDD=2.7V,V

CIN=0.1F(ceramic),CL=0.1uF(ceramic)

Ambient Temperature: Ta [℃]

DOUT

=0.3V,V

AOUT=VSS

6.0

[mA]

5.0

DOUT

4.0

3.0

2.0

1.0

Alarm Output Current: I

0.0

2.5 3 3.5 4 4.5 5 5.5

XC3101AC70

=0.1F(ceramic),CL=0.1uF(ceramic)

0 0.3 0.6 0.9 1.2 1.5

Analog Output Current :I

Ta=25℃,VDD=2.7V

[mA]

AOUT

XC3101AC70

Ta=100℃,V

CIN=0.1F(ceramic),CL=0.1uF(ceramic)

Input Voltage:　V

DOUT

=0.3V,V

[V]

AOUT=VSS

XC3101

Series

9/13

XC3101 Series

■PACKAGING INFORMATION

●SSOT-24

Unit: mm

+0.15

0.25

-0.1

+0.15

0.25

-0.1

●USPN-4

Unit: mm

1.2±0.05

+0.02

-0.03

0.38

C0.

2.0±0.1

1.3±0.2

0.9±0.05

1pin INDENT

0.2±0.05

(0.55)

0.25±0.05

0.35

0.05

0.425±0.05

0.25

+0.15

-0.1

+0.15

-0.1

+0.1

0.125

-0.05

USPN-4 Package

+0.1

-0

10/13

■PACKAGING INFORMATION (Continued)

●USPN-4 Reference Pattern Layout ●USPN-4 Reference Metal Mask Design

Unit: mm

C0.

0.25 0.25

075

0.125 0.55 0.125

0.2 0.2

C0.0

0.1 0.10.55

XC3101

Series

11/13

XC3101 Series

■MARKING RULE

●SSOT-24

(With the orientation bar at the bottom)

(方向下バー付きタイプ)

* SSOT-24 has the orientation bar marked in the bottom.

②①

④

③

0〜0, A〜Z are in an order.



●USPN-4

①②

④⑤③

01〜09, 0A〜0Z, 11〜9Z, A1〜A9, AA〜AZ, B1〜ZZ are in an order.

(G, I, J, O, Q, W excluded.)



① represents product series

MARK PRODUCT SERIES

N XC3101******-G

② represents production registered number

(G, I, J, O, Q, W excluded.)

* 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.

① represents product series

MARK PRODUCT SERIES

D XC3101******-G

②③ represents production registered number

* 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.

prior permission of TOREX SEMICONDUCTOR LTD.

13/13

TOREX XC3101 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual