XC3101 Series ETR0902-004 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. ■FEATURES ■APPLICATIONS ● ● ● ● Base temperature monitoring on mobile devices Internal temperature monitoring on small electronic device Temperature monitoring (LCD, Module) Temperature control for FAN Operating Voltage Range : Analog Output Voltage : 2.7V～5.5V 1.600V (TYP.) @25℃ 2.365V (TYP.) @-40℃ 0.717V (TYP.) @100℃ -11.77mＶ/℃(TYP.) Analog Output Temp. Coefficient : 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 ■TYPICAL APPLICATION CIRCUIT ■TYPICAL PERFORMANCE CHARACTERISTICS Vpull-up XC31 01 AC7 0 RPULL VDD VBAT CIN VSS VDOUT Alarm Output VAOUT Analog Output CL Analog Output Voltage: VAOUT [mV] VDD =2.7V,IAOUT=1uA CIN=0.1F(ceramic),CL=0.1uF(ceramic) 2500 2000 1500 1000 500 -50 -25 0 25 50 75 100 Ambient Temperature: Ta [℃] 125 1/13 XC3101 Series ■PIN CONFIGURATION ■PIN ASSIGNMENT PIN NUMBER PIN NAME FUNCTIONS 1 VDD Power Supply Input 2 VSS Ground 4 3 VDOUT Alarm Output 3 4 VAOUT Analog Output USPN-4 SSOT-24 2 1 ■PRODUCT CLASSIFICATION ●Ordering Information (*1) (*2) (*3) 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 The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant. For other alarm temperature besides 70℃, please ask Torex sales contacts. Optional setting range is 50℃∼95℃. 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 *Diodes inside the circuit are an ESD protection diode and a parasitic diode. ■ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Ta=25℃ RATINGS UNITS Input Voltage VDD VSS -0.3～+7.0 V Analog Output Voltage VAOUT VSS -0.3～VDD +0.3 V Alarm Output Voltage VDOUT VSS～VSS +7.0 V Output Current IDOUT, IAOUT 30 mA Power Dissipation USPN-4 SSOT-24 Operating Ambient Temperature Storage Temperature Pd 100 150 mW Ta -40～+100 ℃ Tstg -55～+125 ℃ 3/13 XC3101 Series ■ELECTRICAL CHARACTERISTICS XC3101AC70 Ta＝-40℃～100℃ PARAMETER SYMBOL Power Input Range VDD -40℃≦Ta≦100℃ Supply Current IDD VDD=3.6V, No load Analog Output Voltage Analog Output Voltage Temperature Coefficient VAOUT d VAOUT /dT Linearity Margin Error Load Regulation ΔVO/ΔIO Analog Output Current IAOUT Alarm Temperature TDET Alarm Temperature Hysteresis Width THYS Alarm Output Current IDOUT Alarm Output Leakage Current IDOUTLEAK CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT 2.7 - 5.5 V - - 3.5 6 μA ② Ta=-40℃, VDD=2.7V～5.5V, IAOUT=10μA 2324 2365 2406 mV ① Ta=25℃, VDD=2.7V～5.5V, IAOUT=10μA 1559 1600 1641 mV ① Ta=100℃, VDD=2.7V～5.5V, IAOUT=10μA 676 717 758 mV ① VDD=2.7V～5.5V, IAOUT=10μA -12.52 -11.77 -11.08 mV/℃ VDD=2.7V～5.5V, IAOUT=10μA - ±0.4 - % ① 1μA≦IAOUT≦1ｍA - 5 10 mV ① VDD=2.7V～5.5V 1 - - mA ① 65.5 70.0 74.5 ℃ ① TDET -6.5 TDET -5 TDET -3.5 ℃ ① 1 - - mA ③ - 0.001 0.2 μA ③ VDD=2.7V～5.5V, IAOUT=10μA Change from low temperature to high temperature VDD=2.7V～5.5V, IAOUT=10μA VDD=2.7V ,VDOUT=0.3V , VAOUT=VSS N-ch open drain output VDD=5.5V, VDOUT=5.5V, VAOUT=2.5V NOTE: (*1) The value is specified in design values under shipping Inspection at a normal temperature and a high temperature. 4/13 (*1) ① ① XC3101 Series ■TEST CIRCUITS Circuit ① IAOUT VDD VAOUT VSS VDOUT A CIN:0.1uF CL:0.1uF V V Rpull:220kΩ Circuit ② Circuit ③ VDD VAOUT VSS VDOUT VDD VAOUT VSS VDOUT CIN:0.1uF A Circuit ④ CIN:0.1uF 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 (2)Analog Output Voltage vs. Ambient Temperature XC3101AC70 Supply Current: IDD [μA] 5.0 4.5 VDD=5.5V 4.0 3.5 VDD=3.6V 3.0 2.5 2.0 -50 -25 0 25 50 75 100 125 Ambient Temperature: Ta [℃] (3)Analog Output Temperature Error vs. Ambient Temperature Analog Output Voltage: VAOUT [mV] XC3101AC70 2500 2000 1500 1000 500 -50 -25 0 25 50 75 100 125 Ambient Temperature: Ta [℃] (4)Linearity Margin Error vs. Ambient Temperature XC3101AC70 VDD=2.7V,IAOUT=1uA CIN=0.1F(ceramic),CL=0.1uF(ceramic) 0.4 Linearity Margin Error [%] Analog Output Temperature Error [℃] XC3101AC70 4.0 2.0 0.0 -2.0 -4.0 -50 -25 0 25 50 75 100 125 Ambient Temperature: Ta [℃] (5) Alarm Output Voltage vs. Ambient Temperature Alarm Output Voltage: VDOUT [V] XC3101AC70 VDD=2.7V,IAOUT=1uA,Vpull-up=0.5V CIN=0.1F(ceramic),CL=0.1uF(ceramic),Rpull=220k 0.7 Ω 0.6 0.5 0.4 0.3 0.2 0.1 0 60 8/13 62 64 66 68 70 72 74 Ambient Temperature: Ta [℃] VDD=2.7V,IAOUT=1uA CIN=0.1F(ceramic),CL=0.1uF(ceramic) 76 VDD=2.7V,IAOUT=1uA CIN=0.1F(ceramic),CL=0.1uF(ceramic) 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -50 -25 0 25 50 75 100 125 Ambient Temperature: Ta [℃] XC3101 Series ■ TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (6) Analog Output Voltage vs. Analog Output Current XC3101AC70 Ta=-40℃,VDD=2.7V CIN=0.1F(ceramic),CL=0.1uF(ceramic) 2400 Analog Output Voltage :VAOUT [mV] Analog Output Voltage :VAOUT [mV] XC3101AC70 2380 2360 2340 2320 0 Ta=25℃,VDD=2.7V CIN=0.1F(ceramic),CL=0.1uF(ceramic) 1640 1620 1600 1580 1560 0.3 0.6 0.9 1.2 1.5 Analog Output Current :IAOUT [mA] 0 0.3 0.6 0.9 1.2 1.5 Analog Output Current :IAOUT [mA] Analog Output Voltage :VAOUT [mV] 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 VDD=2.7V,VDOUT=0.3V,VAOUT=VSS CIN=0.1F(ceramic),CL=0.1uF(ceramic) 6.0 Alarm Output Current: IDOUT [mA] Alarm Output Current: IDOUT [mA] XC3101AC70 5.0 4.0 3.0 2.0 1.0 0.0 70 80 90 Ambient Temperature: Ta [℃] 100 Ta=100℃,VDOUT=0.3V,VAOUT=VSS CIN=0.1F(ceramic),CL=0.1uF(ceramic) 6.0 5.0 4.0 3.0 2.0 1.0 0.0 2.5 3 3.5 4 4.5 5 Input Voltage: VDD [V] 5.5 9/13 XC3101 Series ■ PACKAGING INFORMATION ●SSOT-24 Unit: mm 2.0±0.1 +0.15 0.25 -0.1 +0.15 0.25 -0.1 +0.1 0 -0 +0.15 0.25 -0.1 +0.15 0.35 -0.1 0.05 +0.1 0.125 -0.05 1.3±0.2 ●USPN-4 Unit: mm 1.2±0.05 0.9±0.05 +0.02 0.38 -0.03 1pin INDENT 2 4 3 C0 .0 5 1 (0.55) 10/13 0.25±0.05 0.425±0.05 0.2±0.05 USPN-4 Package XC3101 Series ■ PACKAGING INFORMATION (Continued) ●USPN-4 Reference Pattern Layout ●USPN-4 Reference Metal Mask Design Unit: mm 0.25 0.25 4 3 0.2 4 3 5 .0 C0 75 .0 C0 0.125 0.2 1 0.55 2 0.125 0.1 1 0.55 2 0.1 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) 4 ② ④ ① ③ 3 1 ① represents product series MARK PRODUCT SERIES N XC3101******-G * 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.) 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 2 ③ ① ② 4 ④ ⑤ 3 ① represents product series MARK PRODUCT SERIES D XC3101******-G 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