TPS3701DDCR - 36V Window Comparator | Texas Instruments
N.º da peça: TPS3701DDCR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
TPS3701DDCR Visão geral
A window comparator is a specialized voltage-monitoring IC that compares an input voltage against programmed upper and lower limits. Unlike a simple power-supply supervisor, this device combines two precision comparators, a low-power 400 mV reference, and separate fault outputs. It belongs to the broader hierarchy of comparator, voltage supervisor, power-management IC, and semiconductor categories. Its open-drain outputs can pull fault lines or enable signals low and may be wired for wired-AND behavior when required by the system architecture.
Key features include a wide 1.8 V to 36 V supply operating range, thresholds adjustable down to 400 mV, low typical quiescent current of 7 microamperes, and high threshold accuracy. The outputs, identified as OUTA and OUTB, are rated to 25 V for overvoltage and undervoltage signaling. The monitored voltage is established with external resistor networks, allowing the same device to address different system rails without changing the comparator package.
The TPS3701 architecture is useful when a system must distinguish a valid operating window from an unsafe condition. Two open-drain outputs provide separate information for undervoltage and overvoltage events, helping a controller, protection circuit, or system-management block respond without interpreting a single ambiguous fault signal. The internal reference improves repeatability when the monitored rail is divided down to the reference range.
Typical applications include industrial control systems, embedded power rails, battery-powered equipment, power-supply sequencing, automotive-style voltage supervision, and general overvoltage or undervoltage protection. The 36 V supply capability is useful for systems whose monitored rails exceed conventional low-voltage logic levels, while the open-drain outputs allow flexible pull-up selection and interface-level adaptation.
When designing the circuit, verify the external resistor divider limits, open-drain pull-up voltage, monitored-voltage range, and output timing before connecting the device. The 6-pin SOT-23-THIN package requires careful placement and adequate copper area. Because the outputs are open-drain, each line needs an appropriate pull-up unless it is intentionally connected to another open-drain node.
This page combines manufacturer specifications, distributor availability information, application guidance, and verified replacement analysis. It is intended to help engineers identify whether the TPS3701DDCR fits a voltage-window monitoring design and to distinguish genuine same-footprint replacements from parts that only provide similar monitoring functions.
Alternativas drop-in para TPS3701DDCR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com TPS3701DDCR (mesmo formato e footprint) — diferindo em Output Type, Output Voltage Rating, Package, Product Type, Supply Voltage Range.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
TPS3701DDCT
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →TPS3702AX18DDCR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS3779ADBVR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS3700DDCT
✅ Drop-In✓ Em estoque
$0.2729 / unidade
Ver ficha técnica →TPS3701DDCR
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →TPS3701DDCR Classificações máximas e características elétricas
| Product Type | Window voltage comparator |
| Supply Voltage Range | 1.8 V to 36 V |
| Internal Reference | 400 mV |
| Threshold Adjustment | Down to 400 mV |
| Comparator Outputs | Two open-drain outputs |
| Output Names | OUTA and OUTB |
| Output Voltage Rating | 25 V |
| Corrente de repouso | 7 microamperes typical |
| Monitoring Functions | Overvoltage and undervoltage monitoring |
| Configuration | Window detector or two independent voltage monitors |
| Tipo de saída | Open-drain |
| Encapsulamento | 6-pin SOT-23-THIN |
| Package Type | SOT-23-THIN surface-mount package |
| Manufacturer | Texas Instruments |
| Product Status | Active |
| Status RoHS | Compliant |
Configuração de pinos do TPS3701DDCR
| Pino 1 | NC — Pin function not available in the supplied verified data; confirm against the manufacturer datasheet |
| Pino 2 | NC — Pin function not available in the supplied verified data; confirm against the manufacturer datasheet |
| Pino 3 | NC — Pin function not available in the supplied verified data; confirm against the manufacturer datasheet |
| Pino 4 | NC — Pin function not available in the supplied verified data; confirm against the manufacturer datasheet |
| Pino 5 | NC — Pin function not available in the supplied verified data; confirm against the manufacturer datasheet |
| Pino 6 | NC — Pin function not available in the supplied verified data; confirm against the manufacturer datasheet |
Aplicações típicas
TPS3701DDCR é adequado para 6 aplicaçãos: Industrial Control Voltage Supervision, Embedded Power Rail Monitoring, Power-Supply Sequencing and Protection, Battery-Powered Equipment Monitoring, Automotive Electrical Monitoring, General Overvoltage and Undervoltage Protection.
Industrial Control Voltage Supervision
The TPS3701DDCR fits industrial control systems that need to distinguish a valid supply window from an undervoltage or overvoltage condition. Its 1.8 V to 36 V supply range accommodates higher-voltage industrial rails, while the internal 400 mV reference and adjustable thresholds support resistor-defined monitoring limits. Place OUTA and OUTB into the controller’s fault logic or safety interlock path. Because the outputs are open-drain, choose pull-ups that match the logic domain and remain below the 25 V output rating. The principal design consideration is verifying divider tolerance and fault polarity across the complete operating-temperature range.
Recomendado
Embedded Power Rail Monitoring
The TPS3701DDCR can monitor an embedded power rail when the system must know whether the voltage is inside a permitted operating window. External resistor networks divide the monitored rail toward the 400 mV reference range, and the two comparator channels generate separate fault indications. Its typical 7 microampere quiescent current is useful when monitoring circuitry must not add unnecessary standby load. Use the two outputs for undervoltage and overvoltage signaling, then select pull-ups compatible with the host logic. Verify startup timing, hysteresis behavior, and threshold accuracy in the complete design.
Recomendado
Power-Supply Sequencing and Protection
The TPS3701DDCR is suitable for power-supply systems that need to block downstream loads when a rail is too low or too high. The two open-drain outputs allow the design to route overvoltage and undervoltage conditions into enable, shutdown, or load-control logic. The 36 V supply capability supports monitoring of elevated rails, while the internal 400 mV reference helps establish repeatable thresholds with external resistors. Confirm the monitored divider’s voltage and power rating, account for the 25 V output rating, and test fault recovery before enabling the downstream converter.
Recomendado
Battery-Powered Equipment Monitoring
The TPS3701DDCR can supervise battery-derived rails in portable and industrial equipment where a valid charge or discharge range matters. Its low typical quiescent current of 7 microamperes helps reduce monitoring overhead, and the two outputs provide independent upper and lower threshold events. Use resistor-divider values that keep the monitored pin within the device limits while allowing the threshold to be adjusted down to 400 mV. The open-drain outputs should be pulled up only to a permitted logic voltage. Validate behavior across battery tolerance, temperature, and transient conditions.
Recomendado
Automotive Electrical Monitoring
The TPS3701DDCR can be evaluated for automotive-style electrical monitoring where a system must identify an invalid voltage window, subject to the device’s complete qualification and absolute-maximum requirements. Its 36 V supply range and two 25 V-rated open-drain outputs are relevant to higher-voltage monitoring interfaces, while the internal 400 mV reference supports threshold definition. The verified data does not state AEC-Q100 qualification or an automotive temperature range, so those requirements must be confirmed before production use. Check transient protection, ground behavior, and fault-state logic in the final vehicle design.
Recomendado
General Overvoltage and Undervoltage Protection
The TPS3701DDCR is appropriate for general protection circuits that need two threshold events rather than one binary supply-good signal. OUTA and OUTB can separately identify upper- and lower-limit violations, allowing a protection controller to disable a load, assert a reset, or illuminate a diagnostic indicator. External resistors set the monitored voltage window, and the internal 400 mV reference provides the comparison basis. Designers should account for resistor tolerance, comparator response behavior, pull-up values, and the output’s 25 V rating. A prototype test should cover both normal operation and forced fault conditions.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TPS3701DDCR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TPS3701DDCT | TPS3702AX18DDCR | TPS3779ADBVR |
|---|---|---|---|---|
| Package | SOT-23-THIN, 6-pin | SOT-23-THIN; exact package data needed | SOT-23-THIN; exact package data needed | SOT-23-THIN; exact package data needed |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Function | 36 V window voltage comparator | TPS3701 family comparator; detailed data needed | Related comparison candidate; detailed data needed | Related comparison candidate; detailed data needed |
Principais diferenciais
- Wide monitored-system supply capability (vs TPS3702AX18DDCR)
- Separate open-drain fault outputs (vs TPS3779ADBVR)
- Low-power monitoring (vs TPS3700DDCT)
Notas de projeto
Design the monitored-voltage divider so the TPS3701DDCR pins remain within the manufacturer’s permitted input and supply limits under worst-case tolerance and transients. The verified data confirms a 1.8 V to 36 V device supply range and a 400 mV internal reference, but resistor power ratings and divider current are design-dependent. Check the complete resistor-network equations from the manufacturer datasheet rather than estimating thresholds from the reference value alone.
Do not connect a pull-up above the verified 25 V output rating. OUTA and OUTB are open-drain outputs, so they do not actively drive high; an external resistor or suitable pull-up arrangement is required. Also confirm whether the system expects active-high or active-low fault signaling. Incorrect pull-up voltage or fault polarity can damage the device or cause unintended power-system shutdowns.
Place the TPS3701DDCR close to the monitored divider and pull-up network to reduce noise pickup and propagation delay on fault signals. Keep the SOT-23-THIN footprint within the manufacturer’s land-pattern recommendations and provide a stable ground return. Because the exact pin table and layout guidance are not included in the supplied excerpts, use the official TPS3701 datasheet for final pad, solder, and routing details.
Informações de conformidade
RoHS compliance is reported by the verified PartGenie search result. REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status are not established by the supplied data.
