REF195ESZ Detailed explanation of pin function specifications and circuit principle instructions
It looks like you're asking for a detailed technical specification and explanation of a component with the part number "REF195ESZ," including information about its brand, packaging, pin functions, and FAQ related to its pinout. I'll break down what you've requested into several parts:
Brand and Packaging: Brand: The part number "REF195ESZ" corresponds to a precision voltage reference IC from Texas Instruments (TI). Package: The "ESZ" suffix typically refers to a SOT-23-5 package (5-pin SOT-23 surface-mount package). Pinout and Function Specifications: The REF195ESZ has 5 pins in total. I'll list the pin functions in a table format as you requested. Pin Number Pin Name Pin Function Description 1 REFOUT Output of the precision reference voltage, 5V typically, to the load. 2 GND Ground pin, connected to the common reference of the system. 3 VCC Supply voltage pin, typically 6V to 40V, powering the reference IC. 4 NC No connection, not used for any function. 5 IN+ Input pin for voltage reference, receives a voltage to be compared to the output. Pin Function FAQ:Here’s a list of 20 common FAQs regarding the REF195ESZ pinout:
Question Answer Q1: What is the function of pin 1 on REF195ESZ? A1: Pin 1, labeled REFOUT, is the output of the precision reference voltage (5V typically). Q2: What is the voltage range required at pin 3 (VCC)? A2: The VCC pin requires a supply voltage range between 6V to 40V. Q3: Can pin 4 (NC) be connected to anything? A3: No, pin 4 (NC) is a "No Connection" pin and should not be connected to any circuit. Q4: What is the typical output voltage at REFOUT? A4: The typical output voltage at REFOUT is 5V. Q5: Is the REF195ESZ internally regulated? A5: Yes, it internally regulates the output voltage and provides a stable reference. Q6: Can I use pin 2 (GND) for any other purpose? A6: No, pin 2 (GND) should only be used as the ground reference for the system. Q7: What is the current drive capability of the REFOUT pin? A7: The REFOUT pin typically drives up to 10mA without significant voltage deviation. Q8: What is the recommended load on the REFOUT pin? A8: A low impedance load is recommended, but the device can supply a load of up to 10mA. Q9: Is there any temperature variation in the output voltage? A9: The REF195ESZ is a precision voltage reference with a low temperature coefficient, minimizing output voltage variation with temperature. Q10: Does pin 3 (VCC) need a decoupling capacitor ? A10: Yes, a bypass capacitor (typically 0.1µF) is recommended between VCC and GND to reduce noise. Q11: What type of filter is suggested for the REFOUT pin? A11: A low-pass filter is typically used to reduce noise on the REFOUT pin. Q12: Can the REF195ESZ be used in a voltage divider circuit? A12: No, it is a voltage reference, and its output is not intended to be divided; instead, it should be used as a stable voltage source. Q13: What is the output voltage tolerance of the REF195ESZ? A13: The output voltage tolerance is typically ±0.2% over temperature. Q14: How stable is the output voltage over time? A14: The REF195ESZ has excellent long-term stability, with typical drift less than 15ppm per year. Q15: Can the REF195ESZ be used with a lower input voltage than 6V? A15: No, the REF195ESZ requires a minimum input voltage of 6V to function correctly. Q16: What is the maximum input voltage for the REF195ESZ? A16: The maximum input voltage at pin 3 (VCC) is 40V. Q17: Is the REF195ESZ suitable for battery-powered applications? A17: Yes, the REF195ESZ can be used in battery-powered applications, as long as the input voltage is within the specified range. Q18: What is the load regulation of the REF195ESZ? A18: The load regulation is typically less than 0.01% for load changes from 0 to 10mA. Q19: Does the REF195ESZ have over-voltage protection? A19: No, the REF195ESZ does not have built-in over-voltage protection, so external protection is recommended if needed. Q20: Can I use the REF195ESZ with inductive loads? A20: It is not recommended to use the REF195ESZ with inductive loads as they may cause instability.These details provide you with a comprehensive view of the REF195ESZ specifications and pin functions, covering everything from pinout descriptions to common usage questions.
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