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TPS3808G01QDRVRQ1

AEC-Q100 supervisor, adj 0.4-5V, 0.5% accuracy, prog delay, SOT-23-6

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Manufacturer Part：

TPS3808G01QDRVRQ1

Package：

SOT-23-6 / DRV-6 (2.9 x 1.6 x 1.2mm, 0.95mm pitch)

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Description

Product Overview

The TPS3808G01QDRVRQ1 from Texas Instruments is an automotive-qualified (AEC-Q100) adjustable supervisory circuit with programmable reset delay in a 6-pin SOT-23-6 package. It monitors a single voltage rail from 0.4V to 5.0V with 0.5% threshold accuracy and provides an active-low reset output with adjustable delay from 1.25ms to 10s.

Key Specifications

Monitored Voltage Range 0.4V to 5.0V (adjustable via external divider)
Threshold Accuracy 0.5% (typical)
Reset Output Active-low (open-drain)
Reset Timeout (Adjustable) 1.25ms to 10s (via CT pin)
Supply Voltage 1.7V to 6.5V
Supply Current 2.4 µA typical
SENSE Input Current 5 pA typical
Power-On Reset Delay Programmable
MR (Manual Reset) Pin Yes (active low)
AEC-Q100 Qualified Yes (Grade 1: -40 to +125°C)
Operating Temperature -40 to +125°C
Package SOT-23-6 (DRV suffix)

Features

  • Automotive AEC-Q100 Grade 1 qualified
  • Adjustable threshold: 0.4V to 5.0V via external divider
  • 0.5% threshold accuracy
  • Programmable reset delay: 1.25ms to 10s
  • Ultra-low supply current: 2.4µA
  • Ultra-low SENSE pin input current: 5pA
  • Manual reset (MR) input
  • Open-drain RESET output
  • Immune to brief VDD transients
  • SOT-23-6 compact package

Applications

  • Automotive MCU/DSP power-on reset
  • FPGA and processor voltage monitoring
  • Battery-powered system supervision
  • Multi-rail system sequencing
  • Industrial controller watchdog

The TPS3808G01QDRVRQ1 from TI is an AEC-Q100 Grade 1 automotive supervisory circuit in SOT-23-6. Monitors 0.4-5.0V via external divider with 0.5% threshold accuracy. Programmable reset delay from 1.25ms to 10s via CT pin resistor or capacitor. 2.4µA supply current and 5pA SENSE input current for battery-powered systems. Manual Reset (MR) input and open-drain RESET output. G01 denotes adjustable version, Q denotes automotive qualified, DRV denotes SOT-23-6, RQ1 denotes tape-and-reel automotive grade.

The TPS3808G01 monitors the SENSE pin voltage against an internal 0.405V reference. When the SENSE voltage drops below the threshold (VIT = 0.405V × (1 – 0.5%)), the RESET output asserts low. The reset timeout period is programmed by connecting a resistor (RCT) from the CT pin to GND. The relationship is: t(d) = RCT × 0.1ms/kΩ, allowing delays from 1.25ms (12.5kΩ) to 10s (100MΩ). Alternatively, a capacitor on CT can set the delay. When VDD rises above the minimum operating voltage, the device asserts reset for the programmed timeout period before releasing. The MR (Manual Reset) pin allows software or hardware-triggered resets. The 5pA SENSE input current allows the use of high-value divider resistors without accuracy degradation, critical for battery-powered applications.

Pin Name Type Function
1 RESET# Output Reset output (active low, open-drain)
2 GND Ground Ground
3 CT Input Programmable delay (resistor or capacitor to GND)
4 SENSE Input Voltage monitor input (connect via external divider)
5 MR# Input Manual reset (active low, internal pull-up)
6 VDD Power Supply voltage (1.7-6.5V)
  • Automotive MCU 3.3V/5V power-on reset with 200ms delay
  • FPGA core voltage 0.9V monitoring with 100ms reset timeout
  • Multi-rail sequencing: 3.3V rail must be stable before 1.8V rail enable
  • Battery-powered system brownout detection at 2.0V threshold
  • Industrial PLC processor supervisor with manual reset button
Manufacturer Part Number Package Notes
TI TPS3808G01DBVR SOT-23-6 Non-automotive version
TI TPS3823-33DBVR SOT-23-5 Fixed 3.3V threshold, simpler
ADI ADM811LARTZ-REEL7 SOT-23-5 Fixed threshold supervisor
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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