TPS3808G01QDRVRQ1 - Auto-Q1 0.4-5V Adj Supervisor | Texas Instruments
MPN: TPS3808G01QDRVRQ1 ✓ Hoạt độngTPS3808G01QDRVRQ1 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho TPS3808G01QDRVRQ1 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TPS3808G01QDRVRQ1 (cùng hình factor và footprint) — khác nhau ở Function, Package, Reset Output Type.
TPS3808G01DRVR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TPS3808G01QDBVRQ1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TPS3808G25QDRVRQ1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TPS3808G33QDRVRQ1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TPS3808G12QDRVRQ1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TPS3808G01QDRVRQ1 Thông số kỹ thuật
| Chức năng | 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) |
| Khoảng nhiệt độ hoạt động | -40 C to +125 C (AEC-Q100 Grade 1) |
| AEC-Q100 Qualification | Qualified (Automotive) |
| Hộp | 6-pin WSON (DRV), 2x2 mm with exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 1 (per TI automotive catalog) |
| Lead-Free / RoHS | Yes (RoHS compliant) |
Cấu hình chân TPS3808G01QDRVRQ1
| Chân 1 | SENSE — Voltage sense input; monitors 0.4 V to 5 V rails, threshold 0.405 V typical |
| Chân 2 | GND — Ground reference |
| Chân 3 | MR — Manual reset input (active-low logic) |
| Chân 4 | CT — Programmable reset-delay capacitor pin (1.25 ms to 10 s) |
| Chân 5 | VDD — Supply voltage input (1.7 V to 6.5 V) |
| Chân 6 | RESET — Open-drain, active-low reset output |
Ứng dụng tiêu biểu
TPS3808G01QDRVRQ1 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TPS3808G01QDRVRQ1 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- AEC-Q100 Grade 1 automotive qualification (vsTPS3808G01DRVR)
- Adjustable SENSE threshold for multi-rail flexibility (vsTPS3808G33QDRVRQ1)
- 2x2 mm WSON footprint for dense PCBs (vsTPS3808G01QDBVRQ1)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
