REF6245IDGKT Integrated Circuits (ICs)

Temperature Coefficient:	3ppm/°C
Supplier Device Package:	8-VSSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Current - Supply:	1.15mA
Voltage - Input:	4.75 V ~ 5.5 V
Noise - 10Hz to 10kHz:	--
Noise - 0.1Hz to 10Hz:	3µVp-p
Series:	--
Tolerance:	±0.05%
Current - Output:	3.5mA
Voltage - Output (Min/Fixed):	4.5V
Output Type:	Fixed
Reference Type:	Series
Part Status:	Active
Packaging:	Tape & Reel (TR)

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REF6245IDGKT is a voltage reference from Texas Instruments. It belongs to a specific category of power management ICs (PMICs) called Voltage References. A voltage reference or a voltage regulator is an electronic device which provides an electrical reference point, by producing a stable, predetermined reference output voltage. It acts as a Fixed Voltage Regulator, which outputs a reference voltage regardless of external load in contrast to Adjustable Voltage Regulator which adjusts the output voltage in accordance with the load demand.REF6245IDGKT voltage reference is a low-power, low-noise, low-dropout 2.5V precision voltage reference and single cell Li-Ion linear battery charger with Digital Power System control interface. It facilitates battery charging via an internal current source and constant voltage source. The output voltage is 0.50V. It is capable of achieving a high accuracy with 10 ppm/°C voltage reference tolerance over the rated temperature range of -55°C to 125°C. It features low power (1.1 μA) and 0.5 μVRMS noise making it ideal for applications that require low noise performance and minimum number of external components.In addition, the REF6245IDGKT voltage reference features a wide range of features to make it suitable for a variety of applications. It includes a low threshold voltage buck converter (boost regulator) and a programmable current source controller with a 0.1 µA motor current limit. It also includes a granular power saving mode which allows the reference to be shut off at high current draws. This voltage reference has an adjustable slew rate setting and can be used with a top-side DC/DC converter to reduce losses by limiting the power level during transients. It also has a thermalFuse feature which enables temperature protection of the device when used in automotive applications. The working principle of the REF6245IDGKT voltage reference is based on the use of a voltage scaling network to reduce the wide variations in input voltages into a predictable and consistent output voltage. This voltage scaling network comprises a resistor, a series of capacitors, and a Zener diode. The Zener diode forms the basis of this network as it provides the path for current to remain in the circuit even when the voltage level is temporarily increased beyond the reference stage. The other components in the voltage scaling network act as protection or as buffering elements to make sure that the output voltage remains stable despite any fluctuation in input voltage.The REF6245IDGKT voltage references are typically used in various applications including communication systems, automotive, consumer electronics, medical and industrial applications. For example, in the automotive applications, this voltage reference can be used for providing reliable power to key components such as the vehicle’s ECU and sensor electronics. In consumer electronics, it is used to provide reliable and accurate power supply to components such as memory cards and rapid charging circuits. In the industrial applications, it is used for providing accurate reference voltage for process automation and machine control systems. In conclusion, REF6245IDGKT voltage reference from Texas Instruments is a top-of-the-line voltage reference with a wide range of features and applications. It is an ideal solution for meeting the requirements of power management ICs in the consumer electronics, medical, automotive, and industrial applications. The voltage reference works on the principle of voltage scaling network and provides reliable, stable and accurate output voltage.

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