XC31B Series ETR0901_001 CMOS Temperature Sensor ■GENERAL DESCRIPTION The XC31B series are ultra small CMOS temperature sensor ICs. As a bandgap type temperature sensor is built-into the XC31B, linearity, in comparison to thermistor type temperature sensors, is much better. The operating temperature range of the series is from -30℃ to +80℃. The XC31B comes in a mini molded SOT-25 and USP-6B packages with a supply current of only 7μA (@VOUT=2.0V) and as such, is suitable for use with various portable devices. Output voltage is selectable in 100mV increments within a range of 2.0V to 6.0V (at 25℃). ■APPLICATIONS ■FEATURES ●Mobile phones ●Portable AV equipment ●Palm top computers, PDAS ●Battery powered equipment Operating Voltage Range : 3.0V ~ 10.0V Output Voltage Range : 2.0V~ 6.0V Output Voltage Accuracy : ±3% Detectable Temperature Range : -30℃ ~ +80℃ Output Voltage Temp. Coefficient : -3900ppm/℃ (TYP.) Low Power Consumption : 7μA (@VOUT=2.0V) Packages : SOT-25, USP-6B ■PIN ASSIGNMENT ■PIN CONFIGURATION PIN NUMBER SOT25 USP-6B VSS VIN NC NC CE VOUT PIN NAME FUNCTION 1 2, 5 NC No Connection 2 6 VSS Ground 3 4 CE Chip Enable 4 3 VOUT Output 5 1 VIN Power Supply *The dissipation pad for the USP-6B package should be solder-plated in recommended mount pattern and metal masking so as to enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected to the VSS pin. 1/9 XC31B Series ■PRODUCT CLASSIFICATION ●Ordering Information XC31B①②③④⑤⑥⑦ DESIGNATOR DESCRIPTION SYMBOL DESCRIPTION ① Polarity of Output Voltage P : + (Positive) ② Temperature Coefficient N : - (Negative) ③ ④ Output Voltage (25℃) 20~60 ⑤ Revision Character A~ ⑥ Package ⑦ Device Orientation : e.g. 20=2.0V, 30=3.0V :- M : SOT-25 (SOT-23-5) D : USP-6B R : Embossed tape, standard feed L : Embossed tape, reverse feed ■BLOCK DIAGRAM ■ABSOLUTE MAXIMUM RATINGS PARAMETER RATINGS UNIT Input Voltage VIN −0.3 ∼ 12 V Output Voltage VOUT −0.3 ∼ 12 V CE Pin Voltage VCE −0.3 ∼ VIN+0.3 V Output Current IOUT 20 mA Pd 150 100 mW Power Dissipation 2/9 Ta=25℃，VSS=0V SYMBOL SOT-25 USP-6B Operating Temperature Range Topr −40 ∼ +85 ℃ Storage Temperature Range Tstg −40 ∼ +125 ℃ XC31B Series ■ELECTRICAL CHARACTERISTICS XC31BPN20A VOUT(T) (*1) =2.0V PARAMETER Input Voltage Output Voltage Detectable Temperature Range SYMBOL VIN VOUT Output Voltage Temperature Coefficient TD (*3) Temperature Sensitivity Linearity Margin Error CONDITIONS MIN. − 1.94 TYP. − 2.0 MAX. 10 2.06 UNITS V V -30 − +80 ℃ IOUT=100μA, VIN=4.0V -30℃≦Ta≦80℃ -3400 -3900 -4400 ppm/℃ TSE TL (*4) -30℃≦Ta≦80℃ -30℃≦Ta≦80℃ -6.8 − -7.8 1 -8.8 3.5 mV/℃ % Load Regulation △VOUT VIN=4.0V 1μA≦IOUT≦100μA − 2.0 − mV Supply Current 1 Supply Current 2 CE "High" Level Voltage CE "Low" Level Voltage ISS1 ISS2 VCEH VCEL VIN=VCE=4.0V, Ta=25℃ VIN=4.0V, VCE=VSS, Ta=25℃ − 1.5 − 7 − − − 17 0.1 − 0.3 μA μA V V PARAMETER Input Voltage Output Voltage Detectable Temperature Range Output Voltage Temperature Coefficient SYMBOL VIN VOUT CONDITIONS MIN. − 3.88 TYP. − 2.0 MAX. 10 4.12 UNITS V V -30 − +80 ℃ TD (*3) IOUT=100μA, VIN=6.0V -30℃≦Ta≦80℃ -3400 -3900 -4400 ppm/℃ Temperature Sensitivity Linearity Margin Error TSE TL (*4) -13.6 − -15.6 1 -17.6 3.5 mV/℃ % Load Regulation △VOUT − 3.0 − mV Supply Current 1 Supply Current 2 CE "High" Level Voltage CE "Low" Level Voltage ISS1 ISS2 VCEH VCEL -30℃≦Ta≦80℃ -30℃≦Ta≦80℃ VIN=6.0V 1μA≦IOUT≦100μA VIN=VCE=6.0V, Ta=25℃ VIN=6.0V, VCE=VSS, Ta=25℃ − − 1.5 − 8 − − − 18 0.1 − 0.3 μA μA V V IOUT=100μA (*2) , VIN=4.0V, Ta=25℃ XC31BPN40A VOUT(T) (*1) =4.0V IOUT=100μA (*2) , VIN=6.0V,Ta=25℃ NOTE: *1: VOUT(T) =Specified output voltage at 25℃. *2: When output current exceed 100μA, output voltage drop will increase. If this IC is to be used in applications where such currents are required, please use a buffer on the output *3: Output voltage temperature coefficient (TD) is defined as: TD= △ V OUT Ta ・ V OUT *4: Linearity margin error (TL) is calculated as follows: emax TL= Tse ・△ Ta where emax = maximum error. The maximum error is the maximum difference between the actual measured value and the value on an approximated straight line. 3/9 XC31B Series ■TYPICAL APPLICATION CIRCUIT ■NOTE ON USE 1. When the load capacitance CL is too large, oscillation may occur on the output signal. 2. Output signal overshoot will occur when the power (VIN) is switched on or when the power drastically fluctuates. The chip enable (CE) function is effective for helping to avoid overshoot and also in saving consumption current. 4/9 XC31B Series ■TYPICAL PERFORMANCE CHARACTERISTICS (1) Output Voltage vs. Ambient Temperature XC31BPN20A（2.0V） XC31BPN40A（4.0V） 2.1 (2) Supply Current vs. Ambient Temperature XC31BPN20A（2.0V） XC31BPN40A（4.0V） (3) Output Voltage vs. Input Voltage XC31BPN20A（2.0V） XC31BPN40A（4.0V） 5/9 XC31B Series ■TYPICAL PERFORMANCE CHARACTERISTICS(Continued) (4) Input Transient Response 1 (5) Input Transient Response 2 (6) CE Pin Transient Response 6/9 XC31B Series ■TYPICAL PERFORMANCE CHARACTERISTICS(Continued) (7) Ripple Rejection Rate ■PACKAGING INFORMATION ●SOT-25 ●USP-6B 7/9 XC31B Series ■PACKAGING INFORMATION (Continued) ●USP-6B Recommended Pattern Layout ●USP-6B Recommended Metal Mask Design ■MARKING RULE ●SOT-25 ①Based on internal standards ②Represents integer of output voltage SOT-25 (TOP VIEW) MARK VOLTAGE (V) 2 3 4 5 6 2.x 3.x 4.x 5.x 6.x ③Represents decimal number point of output voltage MARK 0 1 2 3 4 5 6 7 8 9 ④Represents assembly lot number (Based on internal standards) 8/9 VOLTAGE (V) x.0 x.1 x.2 x.3 x.4 x.5 x.6 x.7 x.8 x.9 XC31B 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 catalog 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 catalog. 3. Please ensure suitable shipping controls (including fail-safe designs and aging protection) are in force for equipment employing products listed in this catalog. 4. The products in this catalog 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 catalog 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 catalog may be copied or reproduced without the prior permission of Torex Semiconductor Ltd. 9/9