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| NLow Power Consumption : 7A NOperating Voltage Range : 3.0V ~ 10.0V NOutput Voltage Temp. Coefficient : TYP -3900ppm/C NSOT-25 Package GMobile phones GPortable AV equipment GPalm top computers, PDA GBattery powered equipment 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 -30C to +80C.The XC31B comes in a mini molded SOT-25 package with a quiescent current of only 7A(2.0V) and as such, is suitable for use with various portable devices. Output voltage is selectable in 0.1V steps within a range of 2.0V to 6.0V (at 25C). Operating Voltage Range : 3.0V ~ 10.0V Output Voltage Range : 2.0V ~ 6.0V Output Voltage Accuracy : 3% Detectable Temperature Range : -30C ~ +80C Output Voltage Temp. Coefficient : TYP -3900ppm/C Low Power Consumption : 7 A (2.0V) 9 635 GOrdering Information - - C GSOT-25 9 636 q qwer w e e e e e e w w w w w w w w w w r 9 637 XC31BPN20A VOUT(T)1)=2.0V XC31BPN40A VOUT(T)1)=4.0V 9 Note: 1) VOUT(T)=Specified Output Voltage at 25C. 2) Should output current exceed 100A, 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 Ta VOUT 4) Liniarity margin error is calculated as follows, 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. TL emax TD VOUT GNotes 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 (1) OUTPUT VOLTAGE vs. AMBIENT TEMPERATURE (2) SUPPLY CURRENT vs. AMBIENT TEMPERATURE 9 (3) OUTPUT VOLTAGE vs. INPUT VOLTAGE 639 (4) INPUT TRANSIENT RESPONSE 1 (5) INPUT TRANSIENT RESPONSE 2 9 (6) CE PIN TRANSIENT RESPONSE 640 (7) RIPPLE REJECTION RATE 9 641 |
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