TPS3840-Q1 Series

Automotive high-input voltage supervisor with manual reset and programmable-reset time delay

Catalog

Automotive high-input voltage supervisor with manual reset and programmable-reset time delay

Part	Supplier Device Package	Voltage - Threshold	Reset	Type	Output	Package / Case	Number of Voltages Monitored	Operating Temperature [Min]	Operating Temperature [Max]	Reset Timeout	Mounting Type	Qualification	Grade
Texas Instruments TPS3840DL27DBVR	SOT-23-5	2.7 V	Active Low	Power Supply Monitor	Open Drain or Open Collector	SC-74A SOT-753	1	-40 °C	125 ¯C	619 ms	Surface Mount
Texas Instruments TPS3840DL19DBVR	SOT-23-5	1.9 V	Active Low	Simple Reset/Power-On Reset	Open Drain or Open Collector	SC-74A SOT-753	1	-40 °C	125 ¯C	619 ms	Surface Mount
Texas Instruments TPS3840DL47DBVRQ1	SOT-23-5	4.7 V	Active Low	Simple Reset/Power-On Reset	Open Drain or Open Collector	SC-74A SOT-753	1	-40 °C	125 ¯C	619 ms	Surface Mount	AEC-Q100	Automotive
Texas Instruments TPS3840DL24DBVR	SOT-23-5	2.4 V	Active Low	Simple Reset/Power-On Reset	Open Drain or Open Collector	SC-74A SOT-753	1	-40 °C	125 ¯C	619 ms	Surface Mount
Texas Instruments TPS3840PL44DBVR	SOT-23-5	4.4 V	Active Low	Simple Reset/Power-On Reset	Push-Pull Totem Pole	SC-74A SOT-753	1	-40 °C	125 ¯C	619 ms	Surface Mount
Texas Instruments TPS3840PL40DBVRQ1	SOT-23-5	4 V	Active Low	Simple Reset/Power-On Reset	Push-Pull Totem Pole	SC-74A SOT-753	1	-40 °C	125 ¯C	619 ms	Surface Mount	AEC-Q100	Automotive
Texas Instruments TPS3840DL22DBVR	SOT-23-5	2.2 V	Active Low	Power Supply Monitor	Open Drain or Open Collector	SC-74A SOT-753	1	-40 °C	125 ¯C	619 ms	Surface Mount
Texas Instruments TPS3840PH45DBVR	SOT-23-5	4.5 V	Active High	Simple Reset/Power-On Reset	Push-Pull Totem Pole	SC-74A SOT-753	1	-40 °C	125 ¯C	619 ms	Surface Mount
Texas Instruments TPS3840PH40DBVR	SOT-23-5	4 V	Active High	Simple Reset/Power-On Reset	Push-Pull Totem Pole	SC-74A SOT-753	1	-40 °C	125 ¯C	619 ms	Surface Mount
Texas Instruments TPS3840DL45DBVR	SOT-23-5	4.5 V	Active Low	Power Supply Monitor	Open Drain or Open Collector	SC-74A SOT-753	1	-40 °C	125 ¯C	619 ms	Surface Mount

Catalog

Automotive high-input voltage supervisor with manual reset and programmable-reset time delay

Key Features

• Qualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to +125°C ambient operating temperatureDevice HBM ESD classification level 2Device CDM ESD classification level C7BWide operating voltage : 1.5 V to 10 VUse external resistors to extend Vin rangeNano supply current : 350 nA (Typ), 700 nA (Max)Fixed threshold voltage (VIT-)Threshold from 1.6 V to 4.9 V in 0.1-V stepsHigh accuracy: 1% (Typ), 1.5% (Max)Built-in hysteresis (VIT+)1.6 V < VIT-≤ 3.0 V = 100 mV (typical)3.1 V ≤ VIT-< 4.9 V = 200 mV (typical)Fast start-up delay (tSTRT): 350 µs (Max)Programmable capacitor-based reset time delay:tD: 50 µs (no capacitor) to 6.2 s (10-µF)Active-low manual reset (MR)Three output topologies:TPS3840DL-Q1: open-drain, active-low (RESET)TPS3840PL-Q1: push-pull, active-low (RESET)TPS3840PH-Q1: push-pull, active-high (RESET)Package: 5-pin SOT-23 (DBV)Qualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to +125°C ambient operating temperatureDevice HBM ESD classification level 2Device CDM ESD classification level C7BWide operating voltage : 1.5 V to 10 VUse external resistors to extend Vin rangeNano supply current : 350 nA (Typ), 700 nA (Max)Fixed threshold voltage (VIT-)Threshold from 1.6 V to 4.9 V in 0.1-V stepsHigh accuracy: 1% (Typ), 1.5% (Max)Built-in hysteresis (VIT+)1.6 V < VIT-≤ 3.0 V = 100 mV (typical)3.1 V ≤ VIT-< 4.9 V = 200 mV (typical)Fast start-up delay (tSTRT): 350 µs (Max)Programmable capacitor-based reset time delay:tD: 50 µs (no capacitor) to 6.2 s (10-µF)Active-low manual reset (MR)Three output topologies:TPS3840DL-Q1: open-drain, active-low (RESET)TPS3840PL-Q1: push-pull, active-low (RESET)TPS3840PH-Q1: push-pull, active-high (RESET)Package: 5-pin SOT-23 (DBV)

Description

Wide Vin allows monitoring 9V rails or batteries without external components and 24V rails with external resistors. Nano-Iq extends battery life for low power applications and minimizes current consumption when using external resistors. Fast start-up delay allows the detection of a voltage fault before the rest of the system powers up providing maximum safety in hazardous start-up fault conditions. Low Power-on-Reset (VPOR) prevents false resets, premature enable or turn-on of next device, and proper transistor control during power-up and power-down. Reset output signal is asserted when the voltage at VDDdrops below the negative voltage threshold (VIT-) or when manual reset (MR) is pulled to a low logic (VMR_L). Reset signal is cleared when VDDrise above VIT-plus hysteresis (VIT+) and manual reset is floating or above VMR_Hand the reset time delay (tD) expires. Reset time delay can be programmed by connecting a capacitor between CT pin and ground. For a fast reset CT pin can be left floating. Additional features: Built-in glitch immunity protection forMRand VDD, built-in hysteresis, low open-drain output leakage current (ILKG(OD)). Wide Vin allows monitoring 9V rails or batteries without external components and 24V rails with external resistors. Nano-Iq extends battery life for low power applications and minimizes current consumption when using external resistors. Fast start-up delay allows the detection of a voltage fault before the rest of the system powers up providing maximum safety in hazardous start-up fault conditions. Low Power-on-Reset (VPOR) prevents false resets, premature enable or turn-on of next device, and proper transistor control during power-up and power-down. Reset output signal is asserted when the voltage at VDDdrops below the negative voltage threshold (VIT-) or when manual reset (MR) is pulled to a low logic (VMR_L). Reset signal is cleared when VDDrise above VIT-plus hysteresis (VIT+) and manual reset is floating or above VMR_Hand the reset time delay (tD) expires. Reset time delay can be programmed by connecting a capacitor between CT pin and ground. For a fast reset CT pin can be left floating. Additional features: Built-in glitch immunity protection forMRand VDD, built-in hysteresis, low open-drain output leakage current (ILKG(OD)).