Series CMOS Temperature Sensor ◆Low Power Consumption : 7µA ■Applications ◆Operating Voltage Range : 3.0V ~ 10.0V ●Mobile phones ◆Output Voltage Temp. Coefficient ●Portable AV equipment : TYP -3900ppm/°C ◆SOT-25 Package ●Palm top computers, PDA ●Battery powered equipment ■General Description ■Features 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°C to +80°C.The XC31B comes in a mini molded SOT-25 package with a quiescent current of only 7µA(2.0V) and as such, is suitable for use Operating Voltage Range : 3.0V ~ 10.0V Output Voltage Range : 2.0V ~ 6.0V Output Voltage Accuracy : ±3% Detectable Temperature Range : -30°C ~ +80°C Output Voltage Temp. Coefficient : TYP -3900ppm/°C Low Power Consumption : 7 µA (2.0V) with various portable devices. Output voltage is selectable in 0.1V steps within a range of 2.0V to 6.0V (at 25°C). ■Pin Configuration VIN VOUT 5 4 1 2 3 NC VSS CE 9 ■Pin Assignment PIN NAME FUNCTION 1 NC No Connection 2 VSS Ground 3 CE Chip Enable 4 VOUT Output VIN Power Supply PIN NUMBER 5 SOT-25 (TOP VIEW) 635 XC31B Series ■Product Classification ●Ordering Information ＸＣ３１Ｂｘｘｘｘｘｘｘ ↑↑ ↑ ↑↑↑ ａｂ ｃ ｄｅｆ DESIGNATOR DESCRIPTION DESIGNATOR a Polarity of Output Voltage P: + (Positive) b Temperature Coefficient N: – (Negative) c Output Voltage (25°C) 20 = 2.0V 30 = 3.0V d Revision Character A∼ ■Packaging Information ●SOT-25 +0.1 0.15 -0.05 0.4 +0.1 -0.05 +0.2 -0.1 0.2min 9 1.6 2.8±0.2 0∼0.1 （0.95） 1.9±0.2 2.9±0.2 636 1.1±0.1 DESCRIPTION e Package Type M=SOT–25 f Device Orientation R = Embossed Tape (Standard Feed) L = Embossed Tape (Reverse Feed) XC31B Series ■Marking qBased on internal standards qwer wRepresents the integer of the Output Voltage SYMBOL 2 3 4 5 6 SOT-25 (TOP VIEW) VOLTAGE (V) 2.e 3.e 4.e 5.e 6.e eRepresents the decimal number point of the Output Voltage SYMBOL 0 1 2 3 4 5 6 7 8 9 VOLTAGE (V) w.0 w.1 w.2 w.3 w.4 w.5 w.6 w.7 w.8 w.9 rRepresents the assembly lot no. ■Block Diagram 9 VIN CE Bandgap Temperature Sensor + VOUT - VSS ■Absolute Maximum Ratings Ta = 25°C, VSS = 0V PARAMETER SYMBOL 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 Power Dissipation Pd 150 mW Operating Ambient Temperature Topr −40 ∼ +85 ℃ Storage Temperature Tstg −40 ∼ +125 ℃ 637 XC31B Series ■Electrical Characteristics XC31BPN20A VOUT(T)1)=2.0V PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 1.94 - 10 V 2.0 2.06 V +80 ℃ Input Voltage VIN Output Voltage VOUT IOUT=100 µA2), VIN=4.0V, Ta=25℃ TD3) IOUT=100µA, VIN=4.0V -30℃≤Ta≤80℃ -3400 -3900 -4400 ppm/℃ Temperature Sensitivity TSE -30℃≤Ta≤80℃ -6.8 -7.8 -8.8 mV/℃ Liniarity Margin Error TL4) -30℃≤Ta≤80℃ 1 3.5 % Load Stability △VOUT VIN=4.0V 1µA≤IOUT≤100µA 2.0 Supply Current 1 ISS1 VIN=VCE=4.0V, Ta=25℃ 7 VIN=4.0V, VCE=VSS, Ta=25℃ Detectable Temperature Range Output Voltage Temperature Coefficient -30 Supply Current 2 ISS2 CE "High" Level Voltage VCEH CE "Low" Level Voltage VCEL mV 17 µA 0.1 µA 1.5 V 0.3 V MAX UNITS XC31BPN40A VOUT(T)1)=4.0V PARAMETER SYMBOL CONDITIONS MIN TYP - 10 V 3.88 2.0 4.12 V +80 ℃ Input Voltage VIN Output Voltage VOUT IOUT=100µA2), VIN=6.0V,Ta=25℃ TD3) IOUT=100µA, VIN=6.0V -30℃≤Ta≤80℃ -3400 -3900 -4400 ppm/℃ Temperature Sensitivity TSE -30℃≤Ta≤80℃ -13.6 -15.6 -17.6 mV/℃ Liniarity Margin Error TL4) -30℃≤Ta≤80℃ 1 3.5 % Load Stability △VOUT VIN=6.0V 1µA≤IOUT≤100µA 3.0 Supply Current 1 ISS1 VIN=VCE=6.0V, Ta=25℃ 8 VIN=6.0V, VCE=VSS, Ta=25℃ -30 Detectable Temperature Range Output Voltage Temperature Coefficient 9 Supply Current 2 ISS2 CE "High" Level Voltage VCEH CE "Low" Level Voltage VCEL mV 18 µA 0.1 µA V 1.5 0.3 V Note: 1) VOUT(T)=Specified Output Voltage at 25°C. 2) Should 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 △VOUT TD＝ △Ta・VOUT 4) Liniarity margin error is calculated as follows, TL＝ emax 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. ■Directions for use ●Notes 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 flucturates. The chip enable (CE) function is effective for helping to avoid overshoot and also in saving consumption current. 638 XC31B Series ■Typical Performance Characteristics (1) OUTPUT VOLTAGE vs. AMBIENT TEMPERATURE XC31BPN20A（2.0V） XC31BPN40A（4.0V） IOUT=100μA,VIN=4.0V 2.3 2.2 1.9 1.7 IOUT=100μA,VIN=6.0V 5.2 Output Voltage:VOUT (V) Output Voltage:VOUT (V) 2.5 4.8 4.4 4.0 3.6 3.2 2.8 1.5 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 Temp.: Ta (℃) Temp.: Ta (℃) (2) SUPPLY CURRENT vs. AMBIENT TEMPERATURE XC31BPN20A（2.0V） XC31BPN40A（4.0V） VIN=4.0V 8 6 4 2 VIN=6.0V 12 Supply Current: ISS1 (μA) Supply Current: ISS1 (μA) 10 10 8 6 4 2 0 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 Temp.: Ta (℃) Temp.: Ta (℃) 9 (3) OUTPUT VOLTAGE vs. INPUT VOLTAGE XC31BPN20A（2.0V） 2.2 2.0 1.8 1.6 1.4 IOUT=100μA, Topr=25℃ 4.4 Output Voltage: VOUT (V) 2.4 Output Voltage: VOUT (V) XC31BPN40A（4.0V） IOUT=100μA, Topr=25℃ 4.2 4.0 3.8 3.6 3.4 1.0 2.0 3.0 4.0 Input Voltage: VIN (V) 5.0 6.0 3.0 4.0 5.0 6.0 7.0 8.0 Input Voltage: VIN (V) 639 XC31B Series (4) INPUT TRANSIENT RESPONSE 1 XC31BPN40A（4.0V） Input Voltage 5 4 3 4 2 1 3 2 0 -1 Output Voltage -2 1 -3 0 -4 -5 Input Voltage: VIN (V) Output Voltage: VOUT (V) 5 Output Voltage: VOUT (V) IOUT=100μA, Topr=25℃, CL=0.01μF 10 9 8 7 6 5 4 3 2 1 0 IOUT=100μA, Topr=25℃, CL=0.01μF 10 8 Input Voltage 6 4 2 0 -2 Output Voltage -4 -6 Input Voltage: VIN (V) XC31BPN20A（2.0V） -8 -10 Time (100μsec/div) Time (100μsec/div) (5) INPUT TRANSIENT RESPONSE 2 XC31BPN20A（2.0V） 3.5 3.0 4 2.5 3 Output Voltage 2 2.0 1 1.5 1.0 0 IOUT=100μA, Topr=25℃, CL=0.01μF 8 7 5.5 6 5.0 4.5 5 Output Voltage 4 4.0 3 3.5 3.0 2 Time (500μsec/div) 9 6.0 Input Voltage Time (500μsec/div) (6) CE PIN TRANSIENT RESPONSE XC31BPN20A（2.0V） CE=1.5V 4 CE Input Voltage 3 CE=0.25V 2 Output Voltage 1 CE=1.5V 8 CE Input Voltage 6 CE=0.25V 4 Output Voltage 2 0 0 Time (100μsec/div) 640 IOUT=100μA, VIN5.0V, Topr=25℃, CL=0.01μF 10 Output Voltage: VOUT (V) Output Voltage: VOUT (V) 5 XC31BPN40A（4.0V） IOUT=100μA, VIN=3.0V, Topr=25℃, CL=0.01μF Time (100μsec/div) Input Voltage: VIN (V) 4.0 Output Voltage: VOUT (V) Input Voltage Input Voltage: VIN (V) Output Voltage: VOUT (V) 6 5 XC31BPN40A（4.0V） IOUT=100μA, Topr=25℃, CL=0.01μF XC31B Series (7) RIPPLE REJECTION RATE Ripple Rejection Rate: RR（dB） XC31BPN40A（4.0V） VIN=6VDC+1Vp-pAC, CL=1000pF IOUT=100μA, Topr=25℃ 60 50 40 30 20 10 0 0.01 0.1 1 10 Ripple Frequency: f (kHz) ■Typical Application Circuit VIN VOUT ADC CL CE VSS CL：0.01μF（ceramic capacitor） 9 641