TPS3700DSER - 18V Window Voltage Detector | Texas Instruments
MPN： TPS3700DSER ✓ 啟用中TPS3700DSER 概覽
A window voltage detector is a power-management monitoring IC that evaluates whether a supply voltage remains between programmable upper and lower limits. The TPS3700 uses external resistors to set the monitored thresholds while retaining a common internal reference for the comparator circuitry. Its two open-drain outputs can be pulled up to 18 V, allowing flexible connection to system logic, reset inputs, or fault-management circuits. Because open-drain outputs do not actively drive a voltage high, each output requires an appropriate pull-up arrangement.
The main features of the TPS3700 are its wide 1.8 V to 18 V operating range, high-voltage output capability, internal 400 mV reference, dual comparator architecture, and independent open-drain indication for overvoltage and undervoltage conditions. These characteristics suit systems that need compact, deterministic supply-range supervision rather than a general-purpose precision analog signal chain. The monitored voltage can also be configured using external components, allowing the same device family to address different rail thresholds.
The TPS3700 is designed as a low-power system supervisor for power supplies, battery-backed systems, industrial control equipment, communication infrastructure, and embedded electronics. Its small package helps reduce board area, while the wide input range supports monitoring above common low-voltage rails. The operating-temperature specification permits use across industrial temperature environments when the surrounding system provides appropriate electrical and thermal conditions.
When placing the device in a design, connect the monitored voltage and external threshold-setting network according to the manufacturer datasheet, and provide suitable pull-up resistors on both open-drain outputs. Pay particular attention to trace resistance, resistor tolerance, input-noise conditions, and the logic levels connected to the outputs. Do not infer alternate-package compatibility from a similar function; the 6-WSON DSE footprint and pin configuration must be verified before substitution.
This product page combines the verified Texas Instruments device description, distributor references, and practical design guidance for engineers evaluating TPS3700DSER. It distinguishes explicit catalog facts from parameters that require confirmation in the full datasheet, helping procurement and hardware teams assess the part without relying on unverified assumptions.
直接替換替代品，適用於 TPS3700DSER — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： TPS3700DSER （相同外形與佔位） — 差異在於 Package, Product Type, Output Type, Automotive Qualification, Hysteresis.
TPS3710DSER
✅ 直接替換📋 參考替代品（不在目錄中）
TPS3703A3250DSER
✅ 直接替換📋 參考替代品（不在目錄中）
TPS3703F6050DSER
✅ 直接替換📋 參考替代品（不在目錄中）
TPS3700DSER 規格
| Product Type | High-voltage window voltage detector |
| Operating Supply Range | 1.8 V to 18 V |
| 輸出類型 | Open-drain |
| Number of Comparators | 2 |
| Internal Reference | 400 mV |
| Overvoltage Monitoring | Supported |
| Undervoltage Monitoring | Supported |
| Output Voltage Rating | 18 V |
| 封裝 | 6-WSON DSE, 1.5 mm x 1.5 mm |
| 工作溫度 | -40°C to +125°C |
| 安裝類型 | Surface mount |
| 腳位數 | 6 pins |
| Configuration | Window detector or two independent voltage monitors |
| Reference Source | Internal reference |
| DigiKey Category | Comparator Window Open-Drain 6-WSON (1.5 x 1.5) |
| Supplier Reference | High-Voltage Window Comparator |
TPS3700DSER 6-wson dse, 1.5 mm x 1.5 mm 腳位配置指南
TPS3700DSER（6-wson dse, 1.5 mm x 1.5 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： TPS3700DSER.
請參閱 資料表 以查看完整腳位配置。
典型應用
TPS3700DSER 適用於 6 應用s: Industrial 12 V Rail Supervision, Power-Supply Overvoltage and Undervoltage Detection, Battery-Packed Equipment Monitoring, Communication Equipment Supply Monitoring, Embedded System Power-Sequencing Control, Automotive and Rugged 12 V Fault Detection.
Industrial 12 V Rail Supervision
TPS3700DSER fits industrial rail monitoring where the input bus can reach 18 V and the system must detect both undervoltage and overvoltage conditions. Its two open-drain outputs can separately report the two fault states to a controller, reset circuit, or safety-monitoring input. The 1.8 V to 18 V operating range gives the designer room to monitor a nominal 12 V rail, while the -40°C to +125°C specification covers a broad industrial temperature span. Use the manufacturer threshold equations to select external resistors and confirm that each pull-up remains within the host logic’s voltage limits.
推薦
Power-Supply Overvoltage and Undervoltage Detection
Use TPS3700DSER at the output of a regulated supply to verify that the rail remains inside a permitted window. The device’s two comparators can be combined as a window detector, reducing the need for a separate pair of basic comparators in space-constrained designs. Its open-drain outputs are useful when the system prefers fault signals tied into an enable, reset, or relay-control path. Because the outputs do not drive high voltage actively, add suitable pull-up resistors and account for their switching behavior when setting system fault thresholds.
推薦
Battery-Packed Equipment Monitoring
TPS3700DSER can supervise a battery-derived rail in portable or stored equipment where the monitor must distinguish an undervoltage event from an overvoltage event. The 1.8 V lower operating boundary allows monitoring of low-voltage systems, while the upper boundary supports rails above conventional 5 V and 3.3 V levels. The internal 400 mV reference provides a defined basis for the external threshold network. In a battery product, check quiescent current, threshold accuracy, and output leakage in the complete datasheet before selecting resistor values.
推薦
Communication Equipment Supply Monitoring
The TPS3700DSER can provide local overvoltage and undervoltage indication in communication equipment where a rail fault must be reported locally before system-level protection acts. Two open-drain outputs allow the design to expose separate fault indications to a controller or monitoring ASIC. Its 18 V operating capability is useful for 12 V and other higher-voltage telecom-adjacent rails, while the compact WSON footprint helps conserve board area. Validate threshold tolerance, fault polarity, pull-up voltage, and propagation delay against the system’s communication timing requirements.
推薦
Embedded System Power-Sequencing Control
TPS3700DSER can monitor a supply rail and provide fault outputs that participate in a power-sequencing or system-enable arrangement. The two outputs can indicate separate upper and lower threshold events, allowing a controller to hold downstream circuits inactive when the rail is invalid. The wide 1.8 V to 18 V monitoring range supports multiple supply architectures, and the 6-pin WSON package supports compact controller boards. Confirm output polarity and pull-up arrangements in the datasheet, because open-drain signaling must be integrated with the controller’s logic thresholds and reset architecture.
推薦
Automotive and Rugged 12 V Fault Detection
The TPS3700DSER is a candidate for rugged 12 V systems that need compact overvoltage and undervoltage fault detection. Its stated 18 V operating limit provides coverage for a nominal 12 V rail, while the -40°C to +125°C operating range is relevant to harsh environments. The device is not automatically automotive-qualified merely because of its temperature rating, so AEC-Q100 status and other compliance requirements must be confirmed from current manufacturer documentation. Validate transient immunity, threshold tolerances, and output fault behavior in the final vehicle or equipment specification.
推薦
推薦產品摘要
工程參考資料，適用於 TPS3700DSER — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TPS3710DSER | TPS3703A3250DSER | TPS3703F6050DSER |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 6-WSON DSE, 1.5 mm x 1.5 mm | 6-WSON DSE, 1.5 mm x 1.5 mm | 6-WSON DSE, 1.5 mm x 1.5 mm | 6-WSON DSE, 1.5 mm x 1.5 mm |
| Number of Pins | 6 pins | 6 pins | 6 pins | 6 pins |
| Special Features | Overvoltage and undervoltage window detection | Window-monitor comparison candidate | Window-monitor comparison candidate | Window-monitor comparison candidate |
主要差異化特點
- Wide high-voltage monitoring range (對比TPS3710DSER)
- Dual open-drain overvoltage and undervoltage outputs (對比TPS3703A3250DSER)
- Internal 400 mV reference (對比TPS3703F6050DSER)
設計說明
Do not treat TPS3700DSER as a generic comparator substitute. The device has a specific 6-WSON DSE footprint, two open-drain outputs, an internal 400 mV reference, and configurable window thresholds. Before using TPS3710DSER, TPS3703A3250DSER, or TPS3703F6050DSER, compare the manufacturer pin functions, threshold equations, output ratings, and timing. The verified comparison results identify candidates but do not prove complete pin-to-pin equivalence.
Place the TPS3700 near the monitored supply and use short, adequately wide traces for the monitored-voltage path. Keep the external threshold resistor network close to the device where practical, and route the two open-drain outputs away from sensitive high-impedance nodes. Because the WSON package is only 1.5 mm by 1.5 mm, follow the manufacturer land pattern and verify solder-mask clearance, exposed-pad treatment, and assembly tolerances.
Size pull-up resistors for the maximum expected output voltage and the amount of current allowed by the host system. Open-drain outputs do not source current, so their high level depends on the pull-up network and its leakage. Confirm that the pull-up voltage remains compatible with the downstream logic and that the output’s fault polarity matches the system reset or enable requirements.
合規資訊
The verified snippets do not provide explicit RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive-qualification data for TPS3700DSER. The part’s operating temperature range is verified, but that does not establish AEC-Q100 qualification.
