TPS3850H12DRCR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	Adjustable/Selectable
Voltage - Threshold:	1.2V
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	10-VFDFN Exposed Pad
Supplier Device Package:	10-VSON (3x3)

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TPS3850H12DRCR Application Field and Working Principle

The TPS3850H12DRCR is a supervisor IC for power management in low-voltage systems, specifically those in the range of 3.75V to 5.25V. The device offers several key features, such as advanced power management, reset and system control, power-on sequence select, voltage monitoring and other features.

Application Field

The TPS3850H12DRCR low voltage supervisor can be found in a variety of applications, ranging from automotive and industrial to consumer and computing applications. The device is well suited for embedded systems, where some advanced management options are needed to ensure system stability.

• Automotive: TPS3850H12DRCR is used for battery management, car health monitoring, window and door control, airbag deployment management, suspension control, computer system resetting, etc.
• Industrial: TPS3850H12DRCR can be found in industrial machines, automation equipment, etc., as well as in systems where low voltage protection is needed.
• Consumer: TPS3850H12DRCR is used in consumer products, such as electronic medical monitoring systems, fitness trackers, electronic locks, intelligent home systems, etc.
• Computing: TPS3850H12DRCR can be used in servers and other computing systems to enable the powering on, powering off, and resetting of the system.

Working Principle

The TPS3850H12DRCR low-voltage supervisor chip uses an integrated circuit (IC) to monitor the voltage input signal from sources such as system power rails, battery voltage, and ground level. It can provide reset output signals and system control functions when the detected voltage is outside preset threshold limits.The device has an input supply voltage operating range of 3.75V to 5.25V and requires an extra VCC monitoring input that has a range of 1.14V to 5.25V. This VCC can be used to monitor any input within the supervisor, like a -12V rail, +5V rail, or 3.3V rail.The TPS3850H12DRCR reset output is a N-channel MOSFET driver that is triggered when the input voltage is below the preset threshold levels, signaling a reset/power down/shut down condition. The reset output is an active low signal, meaning it will be low when the output is triggered and will be high when the circuit is operating normally.The device also has several other features, such as programmable reset and power-on delay circuits, voltage monitoring, power-on and power-off sequencing, power supply monitoring and management, and other options.

Conclusion

The TPS3850H12DRCR is a supervisor IC for power management in low-voltage systems and can be found in a variety of applications from automotive to computing. It works by monitoring the input voltage and triggering a reset signal when the voltage is below preset threshold levels. The device also offers several other features, such as programmable reset and power-on delay circuits, voltage monitoring, power-on and power-off sequencing, power supply monitoring and management, and other options.

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