LM431BIZ/NOPB

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	LM431
Supplier Device Package:	TO-92-3
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Cathode:	1mA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	50ppm/°C Typical
Tolerance:	±1%
Current - Output:	100mA
Voltage - Output (Max):	37V
Voltage - Output (Min/Fixed):	2.495V
Output Type:	Adjustable
Reference Type:	Shunt
Part Status:	Obsolete
Packaging:	Bulk

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The LM431BIZ/NOPB is a low-power integrated circuit designed to serve as a voltage reference, meaning that it is capable of providing a constant output voltage across a wide range of conditions. This device, manufactured by Texas Instruments, is commonly used in precision voltage regulation and power supply sequencing, as well as motor control and electro-hydraulic actuator systems. In this article, we will explore the applications and key features of the LM431BIZ/NOPB, as well as its working principle.The LM431BIZ/NOPB is an adjustable precision four-terminal shunt regulator, capable of providing ultra-precise minimum and maximum operating voltage levels. The voltage reference is adjustable with a single external resistor, enabling it to maintain a constant output voltage regardless of the temperature changes, power supply transients, and other environmental conditions. The device also features a wide temperature range and a tight voltage tolerance, making it capable of precisely regulating the output voltage in demanding applications.This voltage reference unit is mainly used in power supply sequencing, motor control, touch sensors, and similar applications that require precise voltage monitoring. It is also well-suited for precision control of lithium-ion battery management systems, as it allows the system to sense and monitor the necessary operating conditions to prevent overcharging or undercharging of the battery cells. Additionally, its temperature-compensated output voltage and wide temperature range make it ideal for automotive and medical systems.The working principle of the LM431BIZ/NOPB is based on an internal precision Zener diode and an amplifier. The output is fed back through the resistor divider circuit, which further adjusts the voltage level. The output voltage is then clamped to a predetermined level, and the voltage reference is able to remain stable throughout the wide temperature range and power supply transients.The LM431BIZ/NOPB is an ideal voltage reference for a range of applications, including precision voltage regulation, power supply sequencing, and motor control systems. Its internal precision Zener diode and amplifier enable it to provide an ultra-precise output voltage range with minimal variation over temperature and other environmental conditions. Additionally, its wide temperature range and temperature-compensated properties make it suitable for automotive, industrial, and medical applications.

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