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Updated at 01/11/2025 10:30:15(UTC+8)

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Description

The TPS3838K33DBVT is a Supervisory Circuit with active-low open-drain output. The supervisory circuit provides circuit initialization and timing supervision, primarily for DSP and processor-based systems. During power-on, /RESET is asserted when the supply voltage VDD becomes higher than 1.1V. Thereafter, the supervisory circuit monitors VDD and keeps the /RESET output active as long as VDD remains below the threshold voltage of VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time starts after VDD has risen above the threshold voltage VIT. When CT is connected to GND, a fixed delay time of typical 10ms is asserted. When connected to VDD, the delay time is typically 200ms. When the supply voltage drops below the threshold voltage VIT, the output becomes active (low) again. It has a fixed-sense threshold voltage (VIT) set by an internal voltage divider.
Manual reset
220nA Typical supply current
Green product and no Sb/Br

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TPS3838K33DBVT Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	5 Pin
Case/Package	SOT-23-5
Supply Voltage (DC)	1.60V (min)
Supply Current	0.015 mA
Number of Positions	5 Position
Power Dissipation	437 mW
Quiescent Current	220 nA
Threshold Voltage	2.93 V
Reset Threshold Voltage (Min)	2.84 V
Reset Threshold Voltage (Max)	2.99 V
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	437 mW
Supply Voltage	3.3 V
Supply Voltage (Max)	6 V
Supply Voltage (Min)	1.6 V
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Size-Length	2.9 mm
Size-Width	1.6 mm
Size-Height	1.15 mm
Operating Temperature	-40℃ ~ 85℃ (TA)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

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