TPS3823-Q1 Series

Active-low, push-pull, automotive voltage supervisor (reset IC) with 1.6-s watchdog & manual reset

Catalog

Active-low, push-pull, automotive voltage supervisor (reset IC) with 1.6-s watchdog & manual reset

Part	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Reset	Output	Voltage - Threshold	Supplier Device Package	Mounting Type	Number of Voltages Monitored	Qualification	Grade	Reset Timeout	Type
Texas Instruments TPS3823-25QDBVRQ1	SC-74A, SOT-753	-40 °C	125 °C	Active Low	Push-Pull, Totem Pole	2.25 V	SOT-23-5	Surface Mount	1	AEC-Q100	Automotive	120 ms	Simple Reset/Power-On Reset
Texas Instruments TPS3823-50QDBVRQ1	SC-74A, SOT-753	-40 °C	125 °C	Active Low	Push-Pull, Totem Pole	4.55 V	SOT-23-5	Surface Mount	1	AEC-Q100	Automotive	120 ms	Simple Reset/Power-On Reset
Texas Instruments TPS3823-33QDBVRQ1	SC-74A, SOT-753	-40 °C	125 °C	Active Low	Push-Pull, Totem Pole	2.93 V	SOT-23-5	Surface Mount	1	AEC-Q100	Automotive	120 ms	Simple Reset/Power-On Reset

Catalog

Active-low, push-pull, automotive voltage supervisor (reset IC) with 1.6-s watchdog & manual reset

Key Features

• Qualified for automotive applicationsAEC-Q100 Qualified With the Following Results:Device temperature grade 1: –40°C to 125°CDevice HBM ESD classification level 2Device CDM ESD classification level C4BESD protection exceeds 2000V Per MIL-STD-883, Method 3015; using human body model (C = 100pF, R = 1500Ω)Power-on reset generator with fixed delay time of 200ms (TPS3823/4/5/8-xx-Q1) or 25ms (TPS3820-xx-Q1)Manual reset input (TPS3820/3/5/8-xx-Q1)Reset output available in active-low (TPS3820/3/4/5-xx-Q1), Active-High (TPS3824/5-xx-Q1), and open drain (TPS3828-xx-Q1)Supply voltage supervision range: 2.5V, 3V, 3.3V, 5VWatchdog timer (TPS3820/3/4/8-xx-Q1)Supply current of 15µA (typical)5-Pin SOT-23 packageTemperature range: −40°C to 125°CQualified for automotive applicationsAEC-Q100 Qualified With the Following Results:Device temperature grade 1: –40°C to 125°CDevice HBM ESD classification level 2Device CDM ESD classification level C4BESD protection exceeds 2000V Per MIL-STD-883, Method 3015; using human body model (C = 100pF, R = 1500Ω)Power-on reset generator with fixed delay time of 200ms (TPS3823/4/5/8-xx-Q1) or 25ms (TPS3820-xx-Q1)Manual reset input (TPS3820/3/5/8-xx-Q1)Reset output available in active-low (TPS3820/3/4/5-xx-Q1), Active-High (TPS3824/5-xx-Q1), and open drain (TPS3828-xx-Q1)Supply voltage supervision range: 2.5V, 3V, 3.3V, 5VWatchdog timer (TPS3820/3/4/8-xx-Q1)Supply current of 15µA (typical)5-Pin SOT-23 packageTemperature range: −40°C to 125°C

Description

For all new designs with TPS3820-xx-Q1, use the TPS3820-xxQPDBVRQ1 part number. The TPS3820-xxQP is functionally equivalent and a replacement to the TPS3820xxQ. The TPS3820-xxQDBVRQ1 is not recommended for new designs (NRND). The TPS382x-xx-Q1 family of supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. During power on, RESET asserts when the supply voltage VDD becomes greater than 1.1V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET active low as long as VDD remains below the threshold voltage, VIT−. An internal timer delays the return of the output to the inactive state (high) to verify a proper system reset. The delay time, td, starts after VDD has risen above the threshold voltage VIT−. When the supply voltage drops below the threshold voltage VIT−, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage, VIT–, set by an internal voltage divider. The TPS382x-xx-Q1 family also offers watchdog time out options of 200ms (TPS3820-xx-Q1) and 1.6s (TPS3823/4/8-xx-Q1). For all new designs with TPS3820-xx-Q1, use the TPS3820-xxQPDBVRQ1 part number. The TPS3820-xxQP is functionally equivalent and a replacement to the TPS3820xxQ. The TPS3820-xxQDBVRQ1 is not recommended for new designs (NRND). The TPS382x-xx-Q1 family of supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. During power on, RESET asserts when the supply voltage VDD becomes greater than 1.1V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET active low as long as VDD remains below the threshold voltage, VIT−. An internal timer delays the return of the output to the inactive state (high) to verify a proper system reset. The delay time, td, starts after VDD has risen above the threshold voltage VIT−. When the supply voltage drops below the threshold voltage VIT−, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage, VIT–, set by an internal voltage divider. The TPS382x-xx-Q1 family also offers watchdog time out options of 200ms (TPS3820-xx-Q1) and 1.6s (TPS3823/4/8-xx-Q1).