LM4041BIDBZT

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	LM4041B
Supplier Device Package:	SOT-23-3
Package / Case:	TO-236-3, SC-59, SOT-23-3
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Cathode:	80µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	20µVrms
Series:	--
Temperature Coefficient:	100ppm/°C
Tolerance:	±0.2%
Current - Output:	12mA
Voltage - Output (Max):	10V
Voltage - Output (Min/Fixed):	1.233V
Output Type:	Adjustable
Reference Type:	Shunt
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to LM4041BIDBZTThe LM4041BIDBZT is a precision micro-power voltage reference diode from Texas Instruments. It belongs to the PMIC (power integrated circuit) category, and more specifically, to the voltage reference subcategory. Based on a CMOS process, the device is made of a single-metal bipolar transistor, a voltage reference resistor, and a temperature-compensating bandgap circuit. It is designed to provide a low-noise, low-power, low-cost reference source for precision voltage applications.Application of LM4041BIDBZTThe LM4041BIDBZT is suitable for applications that required an accurate and stable reference voltage, such as precision voltage references, voltage converters, low-power microprocessors, temperature sensors, and other mixed-signal analog applications. The device usually operates over a wide range of temperatures, from -55°C to +125°C, and can provide a stable reference voltage of 1.15V with a temperature coefficient of 0.09mV/°C.In addition, the device provides a reference voltage which is insensitive to changes in the supply voltage. This makes the LM4041BIDBZT ideal for battery-powered applications, such as portable computers and cell phones, where the battery voltage can vary depending on the battery\'s state of charge and load conditions.Working PrincipleThe LM4041BIDBZT is made of a bipolar transistor and two reference resistors, which form an oscillator cascade. The bipolar transistor is connected to a bandgap generator, which is the temperature-compensated reference circuit. The reference generator generates a very stable reference voltage, which is the output of the device.The oscillator cascade produces ripple signals, which are filtered and compared to the bandgap reference voltage. The output of the comparison is a voltage proportional to the bandgap reference voltage, thus providing a stable reference voltage. The output voltage is governed by the following equation:Vout = Vref + (Vb – Vref) x Ri/(Ri + Rf)Where Vref is the reference voltage generated by the bandgap circuit, Vb is the converted ripple voltage, Ri is the resistor connected to the bandgap generator, and Rf is the feedback resistor connected to the gate of the bipolar transistor.Due to the extremely low current requirements of the device, the LM4041BIDBZT is ideal for low-power applications. Because the device is constructed in a CMOS process, the supply voltage and input current requirements are extremely low. This makes the device a highly reliable reference source for battery-powered applications, as well as for dynamic power management systems.Conclusion The LM4041BIDBZT is a precision micro-power voltage reference diode from Texas Instruments. It belongs to the PMIC (power integrated circuit) category, and more specifically, to the voltage reference subcategory. With its low power requirements and excellent accuracy, the device is an ideal reference source for precision voltage applications, from temperature sensors to low-power microprocessors. The LM4041BIDBZT is also suitable for battery-powered applications, where the battery voltage can vary due to load conditions. The device is constructed in a CMOS process, which makes it a highly reliable and precise reference source.

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