TPS3838-Q1 Series

Active-low, open-drain, automotive, nano-power supervisors with manual reset

Catalog

Active-low, open-drain, automotive, nano-power supervisors with manual reset

Part	Number of Voltages Monitored	Output	Mounting Type	Voltage - Threshold	Reset	Operating Temperature [Max]	Operating Temperature [Min]	Type	Supplier Device Package	Package / Case	Grade	Qualification
Texas Instruments TPS3838E18DBVR	1	Open Drain or Open Collector	Surface Mount	1.71 V	Active Low	85 °C	-40 °C	Simple Reset/Power-On Reset	SOT-23-5	SC-74A SOT-753
Texas Instruments TPS3838K33DBVTG4	1	Open Drain or Open Collector	Surface Mount	2.93 V	Active Low	85 °C	-40 °C	Simple Reset/Power-On Reset	SOT-23-5	SC-74A SOT-753
Texas Instruments TPS3838K33DBVRG4	1	Open Drain or Open Collector	Surface Mount	2.93 V	Active Low	85 °C	-40 °C	Simple Reset/Power-On Reset	SOT-23-5	SC-74A SOT-753
Texas Instruments TPS3838E18DBVTG4	1	Open Drain or Open Collector	Surface Mount	1.71 V	Active Low	85 °C	-40 °C	Simple Reset/Power-On Reset	SOT-23-5	SC-74A SOT-753
Texas Instruments TPS3838L30DBVTG4	1	Open Drain or Open Collector	Surface Mount	2.64 V	Active Low	85 °C	-40 °C	Simple Reset/Power-On Reset	SOT-23-5	SC-74A SOT-753
Texas Instruments TPS3838E18QDBVRQ1	1	Open Drain or Open Collector	Surface Mount	1.71 V	Active Low	125 °C	-40 °C	Simple Reset/Power-On Reset	SOT-23-5	SC-74A SOT-753	Automotive	AEC-Q100
Texas Instruments TPS3838J25DBVTG4	1	Open Drain or Open Collector	Surface Mount	2.25 V	Active Low	85 °C	-40 °C	Simple Reset/Power-On Reset	SOT-23-5	SC-74A SOT-753
Texas Instruments TPS3838J25DBVR	1	Open Drain or Open Collector	Surface Mount	2.25 V	Active Low	85 °C	-40 °C	Simple Reset/Power-On Reset	SOT-23-5	SC-74A SOT-753
Texas Instruments TPS3838L30DBVR	1	Open Drain or Open Collector	Surface Mount	2.64 V	Active Low	85 °C	-40 °C	Simple Reset/Power-On Reset	SOT-23-5	SC-74A SOT-753
Texas Instruments TPS3838L30DBVT	1	Open Drain or Open Collector	Surface Mount	2.64 V	Active Low	85 °C	-40 °C	Simple Reset/Power-On Reset	SOT-23-5	SC-74A SOT-753

Catalog

Active-low, open-drain, automotive, nano-power supervisors with manual reset

Key Features

• Qualified for Automotive ApplicationsCustomer-Specific Configuration Control Can Be Supported Along With Major-Change ApprovalESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)Supply Current of 220 nA (Typ)Precision Supply Voltage Supervision Range: 1.8 V, 2.5 V, 3.0 V, 3.3 VPower-On Reset Generator With Selectable Delay Time of 10 ms or 200 msPush/PullRESETOutput (TPS3836), RESET Output (TPS3837), or Open-DrainRESETOutput (TPS3838)Manual Reset5-Pin SOT-23 PackageTemperature Range –40°C to 125°CApplications IncludeApplications Using Automotive Low-Power DSPs, Microcontrollers, or MicroprocessorsBattery-Powered EquipmentIntelligent InstrumentsWireless Communication SystemsAutomotive SystemsQualified for Automotive ApplicationsCustomer-Specific Configuration Control Can Be Supported Along With Major-Change ApprovalESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)Supply Current of 220 nA (Typ)Precision Supply Voltage Supervision Range: 1.8 V, 2.5 V, 3.0 V, 3.3 VPower-On Reset Generator With Selectable Delay Time of 10 ms or 200 msPush/PullRESETOutput (TPS3836), RESET Output (TPS3837), or Open-DrainRESETOutput (TPS3838)Manual Reset5-Pin SOT-23 PackageTemperature Range –40°C to 125°CApplications IncludeApplications Using Automotive Low-Power DSPs, Microcontrollers, or MicroprocessorsBattery-Powered EquipmentIntelligent InstrumentsWireless Communication SystemsAutomotive Systems

Description

The TPS3836, TPS3837, and TPS3838 device families of supervisory circuits provide circuit initialization and timing supervision, primarily for digital signal processors (DSP) and processor-based systems. During power-on,RESETis asserted when the supply voltage VDDbecomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDDand keeps theRESEToutput active as long as VDDremains 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 VDDrises above the threshold voltage VIT. When CT is connected to GND, a fixed delay time of typically 10 ms is asserted. When connected to VDD, the delay time is typically 200 ms. When the supply voltage drops below the threshold voltage VIT, the output becomes active (low) again. All the devices of this family have a fixed-sense threshold voltage (VIT) set by an internal voltage divider. The TPS3836 has an active-low, push-pullRESEToutput. The TPS3837 has an active-high, push-pull RESET, and the TPS3838 integrates an active-low, open-drainRESEToutput. The product spectrum is designed for supply voltages of 1.8 V, 2.5 V, 3.0 V, and 3.3 V. The circuits are available in either a SOT23-5 or a 2-mm × 2-mm SON-6 package. The TPS3836, TPS3837, and TPS3838 families are characterized for operation over a temperature range of –40°C to 85°C. The TPS3836, TPS3837, and TPS3838 device families of supervisory circuits provide circuit initialization and timing supervision, primarily for digital signal processors (DSP) and processor-based systems. During power-on,RESETis asserted when the supply voltage VDDbecomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDDand keeps theRESEToutput active as long as VDDremains 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 VDDrises above the threshold voltage VIT. When CT is connected to GND, a fixed delay time of typically 10 ms is asserted. When connected to VDD, the delay time is typically 200 ms. When the supply voltage drops below the threshold voltage VIT, the output becomes active (low) again. All the devices of this family have a fixed-sense threshold voltage (VIT) set by an internal voltage divider. The TPS3836 has an active-low, push-pullRESEToutput. The TPS3837 has an active-high, push-pull RESET, and the TPS3838 integrates an active-low, open-drainRESEToutput. The product spectrum is designed for supply voltages of 1.8 V, 2.5 V, 3.0 V, and 3.3 V. The circuits are available in either a SOT23-5 or a 2-mm × 2-mm SON-6 package. The TPS3836, TPS3837, and TPS3838 families are characterized for operation over a temperature range of –40°C to 85°C.