TPS386040 Series

Push-pull, quad-supply voltage supervisors with programmable delay & watchdog timer

Catalog(3 parts)

Part	Supplied Contents	Type	Function	Utilized IC / Part	Package / Case	Operating Temperature▲▼	Operating Temperature▲▼	Output	Number of Voltages Monitored▲▼	Reset Timeout	Supplier Device Package	Reset	Voltage - Threshold	Mounting Type
Texas Instruments TPS386040EVM TPS386040 Power Supply Supervisor/Tracker/Sequencer Power Management Evaluation Board	Board(s)	Power Management	Power Supply Supervisor/Tracker/Sequencer	TPS386040
Texas Instruments TPS386040RGPR Supervisor Open Drain or Open Collector 4 Channel 20-QFN (4x4)		Multi-Voltage Supervisor			20-VFQFN Exposed Pad	125 °C	-40 °C	Open Drain or Open Collector	4 ul	Adjustable/Selectable	20-QFN (4x4)	Active Low	Adjustable/Selectable	Surface Mount
Texas Instruments TPS386040RGPT Supervisor Push-Pull, Totem Pole 4 Channel 20-QFN (4x4)		Multi-Voltage Supervisor			20-VFQFN Exposed Pad	125 °C	-40 °C	Push-Pull, Totem Pole	4 ul	Adjustable/Selectable	20-QFN (4x4)	Active Low	Adjustable/Selectable	Surface Mount

Key Features

• Four Independent Voltage SupervisorsChannel 1:Adjustable Threshold Down to 0.4 VManual Reset (MR) InputChannels 2, 3:Adjustable Threshold Down to 0.4 VChannel 4:Adjustable Threshold at Any Positive or Negative VoltageWindow ComparatorAdjustable Delay Time: 1.4 ms to 10 sThreshold Accuracy: 0.25% TypicalVery Low Quiescent Current: 11 µA TypicalWatchdog Timer With Dedicated OutputWell-Controlled Output During Power UpTPS386000: Open-DrainRESETnandWDOTPS386040: Push-PullRESETnandWDOPackage: 4-mm × 4-mm, 20-Pin VQFNFour Independent Voltage SupervisorsChannel 1:Adjustable Threshold Down to 0.4 VManual Reset (MR) InputChannels 2, 3:Adjustable Threshold Down to 0.4 VChannel 4:Adjustable Threshold at Any Positive or Negative VoltageWindow ComparatorAdjustable Delay Time: 1.4 ms to 10 sThreshold Accuracy: 0.25% TypicalVery Low Quiescent Current: 11 µA TypicalWatchdog Timer With Dedicated OutputWell-Controlled Output During Power UpTPS386000: Open-DrainRESETnandWDOTPS386040: Push-PullRESETnandWDOPackage: 4-mm × 4-mm, 20-Pin VQFN

Description

The TPS3860x0 family of supply voltage supervisors (SVSs) can monitor four power rails that are greater than 0.4 V and one power rail less than 0.4 V (including negative voltage) with a 0.25% (typical) threshold accuracy. Each of the four supervisory circuits (SVS-n) assert aRESETnor RESETn output signal when the SENSEm input voltage drops below the programmed threshold. With external resistors, the threshold of each SVS-n can be programmed (wheren= 1, 2, 3, 4 andm= 1, 2, 3, 4L, 4H). Each SVS-n has a programmable delay before releasingRESETnor RESETn. The delay time can be set independently for each SVS from 1.4 ms to 10 s through the CTn pin connection. Only SVS-1 has an active-low manual reset (MR) input; a logic-low input toMRassertsRESET1or RESET1. SVS-4 monitors the threshold window using two comparators. The extra comparator can be configured as a fifth SVS to monitor negative voltage with voltage reference output VREF. The TPS3860x0 has a very low quiescent current of 11 µA (typical) and is available in a small, 4-mm x 4-mm, VQFN-20 package. The TPS3860x0 family of supply voltage supervisors (SVSs) can monitor four power rails that are greater than 0.4 V and one power rail less than 0.4 V (including negative voltage) with a 0.25% (typical) threshold accuracy. Each of the four supervisory circuits (SVS-n) assert aRESETnor RESETn output signal when the SENSEm input voltage drops below the programmed threshold. With external resistors, the threshold of each SVS-n can be programmed (wheren= 1, 2, 3, 4 andm= 1, 2, 3, 4L, 4H). Each SVS-n has a programmable delay before releasingRESETnor RESETn. The delay time can be set independently for each SVS from 1.4 ms to 10 s through the CTn pin connection. Only SVS-1 has an active-low manual reset (MR) input; a logic-low input toMRassertsRESET1or RESET1. SVS-4 monitors the threshold window using two comparators. The extra comparator can be configured as a fifth SVS to monitor negative voltage with voltage reference output VREF. The TPS3860x0 has a very low quiescent current of 11 µA (typical) and is available in a small, 4-mm x 4-mm, VQFN-20 package.