These tendencies are brought from the thermal effects on the blue chip wavelength and the conversion efficiency of phosphors. For example, allocation between pad and solder mask, incline, lack, and unbalance of solder amount are main quality factor of assembly. S3 S2 S1 Min. The data of this application note is made especially for giving some reference information about LMA characteristics, not for any warranty. Finally designer could recognize how degree LED junction temperature can rise-up from these steps. Use of state of the art silicone More information.
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June Precision Voltage-to-Frequency Converters. General Description. The output. Thus, it provides all the inherent advantages of. And, the frequency from.
The precision timer circuit has low bias cur-. And the output. Typical Applications. See Typical Applications section. Absolute Maximum Ratings Note 1.
Distributors for availability and specifications. Supply Voltage. Output Short Circuit to Ground. Input Voltage. Operating Ambient Temperature Range.
N Package P D. Lead Temperature Soldering, 10 sec. Dual-In-Line Package Plastic. ESD Susceptibility Note 4.
N Package. T MIN. T MAX. Electrical Characteristics. VFC Non-Linearity. In Circuit of Figure 1. Conversion Accuracy Scale Factor Gain. LM, LMA. Temperature Stability of Gain. Change of Gain with V S. Rated Full-Scale Frequency. Gain Stability vs Time. Overrange Beyond Full-Scale Frequency. Offset Voltage. Bias Current. Offset Current.
Common-Mode Range. Timer Threshold Voltage, Pin 5. Input Bias Current, Pin 5. All Devices. Min Typ. Download LMA Datasheet. The output when used as a voltage-to-frequency converter is a pulse train at a frequency precisely proportional to the applied in- put voltage.
Thus, it provides all the inherent advantages of the voltage-to-frequency conversion techniques, and is easy to apply in all standard voltage-to-frequency converter appli- cations. And, the frequency from a battery powered voltage-to-frequency converter can be easily channeled through a simple photoisolator to provide isolation against high common mode levels.
The precision timer circuit has low bias cur- rents without degrading the quick response necessary for kHz voltage-to-frequency conversion.
Features n Guaranteed linearity 0.
Datasheet Texas Instruments LM231AN/NOPB
LM231AN DATASHEET PDF
Precision Voltage-to-Frequency Converter