TPS3808G01QDRVRQ1 - Auto-Q1 0.4-5V Adj Supervisor | Texas Instruments
MPN: TPS3808G01QDRVRQ1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.78 | $1.78 |
| 10 | $1.59 | $15.90 |
| 100 | $1.28 | $128.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.86 | $860.00 |
| 3,000 | $0.71 | $2,130.00 |
TPS3808G01QDRVRQ1 Overview
A voltage supervisor (also called a reset IC or voltage monitor) is a dedicated power-management device that observes one or more system rails and generates a clean reset signal to a microcontroller, FPGA, ASIC, or processor whenever the rail sags, droops, or falls out of specification. Voltage supervisors sit below DC-DC converters and LDOs in the power-tree hierarchy and above the digital logic that depends on valid supply rails. By separating the monitoring function from the regulator, designers can guarantee deterministic boot and brown-out behavior independent of converter load transients.
Key features include an adjustable SENSE threshold down to 0.405 V with high threshold accuracy, a programmable reset delay from 1.25 ms to 10 s via an external capacitor on the CT pin, very low quiescent current of 2.4 uA typical, and an open-drain active-low RESET output that supports wired-OR with other supervisors. The device operates from a 1.7 V to 6.5 V VDD supply and tolerates SENSE voltages up to 6.5 V independent of VDD, simplifying dual-rail monitoring.
The TPS3808G01QDRVRQ1 is the automotive-grade (-Q1) version of the TPS3808G01DRVR and adds AEC-Q100 qualification, extended temperature support, and PPAP documentation for safety-critical automotive designs. Internally, a precision bandgap reference, comparator, and delay-timing block combine to give a glitch-immune, monotonic RESET behavior even during fast load steps.
Typical applications include automotive ECU power-rail monitoring, ADAS sensor supplies, body and chassis modules, industrial PLC supervisory circuits, battery-powered IoT sensor nodes, and FPGA/MCU brown-out protection. The combination of 2.4 uA IQ and a tiny 2x2 mm WSON footprint makes it ideal where board area and standby drain are at a premium. Designers should place the CT capacitor close to the CT pin and use a 0.1 uF VDD bypass capacitor within 1 mm of the device. Compared with the non-automotive TPS3808G01DRVR, the Q1 variant is the drop-in choice when an AEC-Q100 release is required.
Drop-in alternatives for TPS3808G01QDRVRQ1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TPS3808G01QDRVRQ1 (same form factor and footprint) — differing in Function, Package, Reset Output Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPS3808G01DRVR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS3808G01QDBVRQ1
✅ Drop-In✓ In Stock
$0.78 / Unit
View Datasheet →TPS3808G25QDRVRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
TPS3808G33QDRVRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
TPS3808G12QDRVRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
TPS3808G01QDRVRQ1 Specifications
| Function | Processor Supervisor (Voltage Monitor / Reset IC) |
| Number of Voltages Monitored | 1 |
| SENSE Input Voltage Range | 0.4 V to 5 V |
| VDD Supply Voltage Range | 1.7 V to 6.5 V |
| Adjustable Threshold (typ) | 0.405 V (SENSE) |
| Reset Output Type | Open-Drain / Open-Collector, Active-Low |
| Reset Timeout | Adjustable / Selectable (1.25 ms to 10 s) |
| Quiescent Current (typ) | 2.4 uA |
| Manual Reset (MR) Input | Yes (active-low logic input) |
| Operating Temperature Range | -40 C to +125 C (AEC-Q100 Grade 1) |
| AEC-Q100 Qualification | Qualified (Automotive) |
| Package | 6-pin WSON (DRV), 2x2 mm with exposed pad |
| Mounting Type | Surface Mount |
| MSL Level | 1 (per TI automotive catalog) |
| Lead-Free / RoHS | Yes (RoHS compliant) |
TPS3808G01QDRVRQ1 Pin Configuration
| Pin 1 | SENSE — Voltage sense input; monitors 0.4 V to 5 V rails, threshold 0.405 V typical |
| Pin 2 | GND — Ground reference |
| Pin 3 | MR — Manual reset input (active-low logic) |
| Pin 4 | CT — Programmable reset-delay capacitor pin (1.25 ms to 10 s) |
| Pin 5 | VDD — Supply voltage input (1.7 V to 6.5 V) |
| Pin 6 | RESET — Open-drain, active-low reset output |
Typical Applications
TPS3808G01QDRVRQ1 is suitable for 6 applications: Automotive ECU Power-Rail Monitoring, ADAS Sensor and Camera Module Supervision, Industrial PLC and Factory Automation, Battery-Powered IoT Sensor Nodes, FPGA and ASIC Brown-Out Protection, Medical Monitoring Device Supervision.
Automotive ECU Power-Rail Monitoring
The TPS3808G01QDRVRQ1's 0.4-5 V SENSE range and 0.405 V adjustable threshold make it an ideal supervisor for 1.8 V, 2.5 V, 3.3 V, or 5 V MCUs in engine, transmission, and body ECUs. The open-drain RESET output drives the MCU reset pin directly and supports wired-OR with other supervisors, while the 2.4 uA IQ preserves standby battery life in always-on CAN/LIN modules. AEC-Q100 Grade 1 qualification (-40 C to +125 C) plus PPAP documentation meets automotive reliability requirements for ISO 26262 ASIL-rated systems.
Recommended
ADAS Sensor and Camera Module Supervision
In ADAS radar, camera, and lidar modules, the TPS3808G01QDRVRQ1 monitors low-voltage FPGA and serializer rails (0.8-3.3 V) and triggers a clean RESET whenever the supply droops below the safety threshold. Its programmable 1.25 ms-10 s delay lets the designer stretch RESET long enough for serializer PLLs to relock, while the 2x2 mm WSON footprint fits in space-constrained camera PCBs behind the windshield. AEC-Q100 qualification ensures operation across -40 C to +125 C under hood and behind-bumper thermal stress.
Recommended
Industrial PLC and Factory Automation
For industrial PLCs and factory-automation I/O modules, the TPS3808G01QDRVRQ1 monitors 24 V-derived logic rails and provides deterministic reset to microcontrollers and isolated transceivers. The wide 1.7-6.5 V VDD range tolerates unregulated 5 V or 3.3 V bias rails from switching converters, while the manual reset (MR) input enables front-panel pushbutton reset without extra glue logic. The 6-pin WSON (DRV) footprint and -40 C to +125 C range support harsh industrial environments with wide thermal cycling.
Recommended
Battery-Powered IoT Sensor Nodes
In wireless sensor nodes powered by coin-cell or Li-ion batteries, the TPS3808G01QDRVRQ1 draws only 2.4 uA quiescent current and protects the MCU from undervoltage brown-outs that could otherwise corrupt flash or sensor calibration. Its tiny 2x2 mm WSON package leaves board space for the radio and antenna, and the open-drain RESET can directly drive the MCU's reset line without extra bias current. The adjustable SENSE threshold supports 1.8 V MCUs in low-energy BLE designs and 3.3 V MCUs in LoRa nodes.
Recommended
FPGA and ASIC Brown-Out Protection
Low-power FPGAs and ASICs require a monotonic, glitch-free reset signal during power-up and brown-out events, and the TPS3808G01QDRVRQ1 delivers exactly that. Its 0.405 V SENSE threshold monitors post-regulation 1.0-3.3 V rails, while the programmable delay (1.25 ms-10 s via CT capacitor) lets designers extend RESET to cover PLL lock and config-load times. The open-drain output wires cleanly to any logic rail, supporting 1.2 V core, 1.8 V aux, and 3.3 V I/O simultaneously.
Recommended
Medical Monitoring Device Supervision
In portable medical devices such as glucose meters, pulse oximeters, and wearable patches, the TPS3808G01QDRVRQ1 ensures the low-power MCU resets cleanly whenever the battery droops below a safe threshold. Its 2.4 uA IQ adds negligible standby drain while the open-drain active-low RESET drives both the MCU and an optional audible alarm. The wide -40 C to +125 C operating range supports refrigerated, body-worn, and bedside medical environments where temperature swings are common.
Recommended
Recommended Products Summary
Engineering reference data for TPS3808G01QDRVRQ1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS3808G01DRVR | TPS3808G01QDBVRQ1 | TPS3808G25QDRVRQ1 | TPS3808G33QDRVRQ1 | TPS3808G12QDRVRQ1 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 6-WSON (DRV) 2x2 mm | 6-WSON (DRV) 2x2 mm - same | SOT-23-6 (DBV) 3x3 mm | 6-WSON (DRV) 2x2 mm - same | 6-WSON (DRV) 2x2 mm - same | 6-WSON (DRV) 2x2 mm - same |
| AEC-Q100 Automotive Grade | Yes (-Q1, Grade 1) | No (industrial) | Yes (-Q1, Grade 1) | Yes (-Q1) | Yes (-Q1) | Yes (-Q1) |
| SENSE Threshold | 0.405 V adjustable | 0.405 V adjustable | 0.405 V adjustable | 2.5 V fixed | 3.3 V fixed | 1.2 V fixed |
| Quiescent Current (typ) | 2.4 uA | 2.4 uA | 2.4 uA | 2.4 uA | 2.4 uA | 2.4 uA |
| Reset Output Type | Open-Drain, Active-Low | Open-Drain, Active-Low | Open-Drain, Active-Low | Open-Drain, Active-Low | Open-Drain, Active-Low | Open-Drain, Active-Low |
| Manual Reset (MR) Pin | Yes | Yes | Yes | Yes | Yes | Yes |
| Programmable Delay | 1.25 ms to 10 s | 1.25 ms to 10 s | 1.25 ms to 10 s | 1.25 ms to 10 s | 1.25 ms to 10 s | 1.25 ms to 10 s |
| VDD Supply Range | 1.7 V to 6.5 V | 1.7 V to 6.5 V | 1.7 V to 6.5 V | 1.7 V to 6.5 V | 1.7 V to 6.5 V | 1.7 V to 6.5 V |
Key Differentiators
- AEC-Q100 Grade 1 automotive qualification (vs TPS3808G01DRVR)
- Adjustable SENSE threshold for multi-rail flexibility (vs TPS3808G33QDRVRQ1)
- 2x2 mm WSON footprint for dense PCBs (vs TPS3808G01QDBVRQ1)
Design Notes
Place the VDD bypass capacitor (0.1 uF X7R) within 1 mm of pin 5 and connect it directly to a clean ground plane. Keep the CT capacitor trace short (under 3 mm) to avoid leakage-induced timing errors, and route SENSE as a Kelvin connection directly at the load-side of the monitored rail to prevent IR drop from falsely tripping the supervisor.
The 6-pin WSON (DRV) package relies on its exposed thermal pad (EP) for heat dissipation. Solder the EP to a grounded copper pour of at least 10 mm x 10 mm to keep theta_JA below 100 C/W. In automotive under-hood environments with ambient above 85 C, this copper area also helps the device tolerate short transients above 6.5 V VDD.
Do not drive VDD above 6.5 V (absolute max 7 V) or SENSE above 6.5 V - both inputs are independent but share the same ESD clamp. When monitoring a rail higher than 5 V, use an external resistor divider on SENSE with low leakage (<1 nA). The RESET pin requires a pull-up resistor (10 kohm to 100 kohm) to the logic rail of the host MCU since it is open-drain; omitting the pull-up causes the MCU to never see a high-level reset release.
The MR (manual reset) input is TTL/CMOS-compatible but should be debounced externally if driven by a mechanical pushbutton. Add a 100 nF capacitor in parallel with the MR pull-up resistor to filter switch bounce below 1 ms, preventing spurious resets. The SENSE input has a built-in hysteresis of approximately 1.5% of threshold to prevent oscillation under noisy or slow-rising rails.
Compliance Information
RoHS and REACH compliant per TI product page. AEC-Q100 Grade 1 automotive qualified with PPAP and IMDS support. Halogen-free per TI packaging label. Conflict-minerals statement available on TI.com.
