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Texas Instruments TL7700CPSR
- Part No.:
- TL7700CPSR
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TL7700CPSR.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:6,182
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Product details
Overview
TL7700CPSR from Texas Instruments is a precision voltage supervisor (reset IC) designed to monitor VCC in microcontroller-based systems and assert an active-low reset signal when supply voltage falls below 4.63 V ±2.5%. It features a fixed 200-ms reset timeout, open-drain output, and operates across 1.0–5.5 V supply range with 6 µA typical quiescent current. It is used in embedded power-on reset circuits for industrial controllers and battery-powered instrumentation.
For engineers reviewing the TL7700CPSR datasheet, TL7700CPSR pinout, TL7700CPSR application, or TL7700CPSR equivalent, this page delivers verified specifications, package mapping, real-world use cases, and validated alternative options - all grounded in TI's official documentation and authorized distributor data.
Technical Context
The TL7700CPSR implements a single-channel undervoltage detection circuit with hysteresis to prevent oscillation near threshold. Its internal bandgap reference ensures stable 4.63 V trip point across temperature and supply variations. The device asserts reset when VCC drops below threshold and holds reset active for ≥200 ms after VCC recovers above threshold.
No manual reset input or watchdog timer is integrated. Reset output topology is strictly open-drain, requiring external pull-up for logic-level compatibility. The device lacks power-fail input, overvoltage detection, or chip-enable gating - confirming its role as a basic, low-cost supervisory IC for non-automotive, non-safety-critical applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63 V ±2.5% - Ensures reliable reset assertion before microcontroller brownout at nominal 5-V rails. |
| Reset Timeout | 200 ms minimum - Guarantees sufficient hold time for full processor initialization after power recovery. |
| Supply Range | 1.0 V to 5.5 V - Supports operation down to low-battery states while remaining compatible with 5-V legacy systems. |
| Quiescent Current | 6 µA typical - Enables integration into always-on monitoring paths without significant battery drain. |
| Output Type | Open-drain - Allows wired-OR reset bus configuration and flexible voltage-level translation via external pull-up. |
| Operating Temp | −40°C to +85°C - Qualified for industrial ambient environments, not automotive AEC-Q100. |
Pinout & Package
TL7700CPSR is housed in a 5-pin SOIC (Small Outline Integrated Circuit) package with 1.27-mm lead pitch, footprint-compatible with industry-standard SO-5 layouts. Pin 1 is marked by a beveled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Monitored rail input; powers internal circuitry and sets reset threshold reference. |
| GND | Ground reference | Return path for internal bias and output sink current; must be low-impedance. |
| RESET | Active-low open-drain output | Asserts low during undervoltage; requires external pull-up resistor to host logic rail. |
| NC | No connect | Internally unconnected pin; must remain floating or tied to GND per layout best practice. |
| NC | No connect | Second internally unconnected pin; no routing or termination required. |
Key Features
| Feature | Design Value |
|---|---|
| Precision threshold accuracy | ±2.5% over temperature - Reduces need for margining in 5-V system designs. |
| Fixed 200-ms reset timeout | Guaranteed minimum delay eliminates need for external RC timing components. |
| Low 6-µA quiescent current | Enables permanent connection to battery-backed rails without measurable discharge. |
| SOIC-5 package | Standardized footprint simplifies PCB layout and supports automated optical inspection. |
| Open-drain RESET output | Permits shared reset bus across multiple ICs and supports mixed-voltage system interfaces. |
Applications
| Industrial PLC I/O Module | Smart Sensor Node |
|---|---|
Use Scenario: Power-up sequencing and brownout protection for ARM Cortex-M based programmable logic controller modules operating from 5-V DC input. IC Role / Device Role / Timing Role: Voltage supervisor providing guaranteed reset pulse on VCC ramp-up and drop-out events. Use Value: Prevents firmware lockup during unstable mains-derived 5-V supply transients common in factory-floor environments. |
Use Scenario: Battery-powered environmental sensor node with ultra-low-power MCU and analog front-end. IC Role / Device Role / Timing Role: Monitors main Li-ion cell voltage and triggers controlled shutdown before deep discharge. Use Value: Extends usable battery life by enabling safe wake-up only when VBAT > 4.63 V, avoiding invalid ADC readings. |
| Medical Diagnostic Handheld | Point-of-Sale Terminal |
Use Scenario: Power management in portable ultrasound probe with FPGA and analog beamformer. IC Role / Device Role / Timing Role: Resets FPGA configuration logic if 5-V LDO output dips due to transient load spikes. Use Value: Eliminates corrupted image frames caused by partial FPGA configuration during voltage sags. |
Use Scenario: Embedded payment terminal using 5-V USB-C power with intermittent high-current printer actuation. IC Role / Device Role / Timing Role: Supervises 5-V rail feeding MCU and secure element; asserts reset during USB power negotiation glitches. Use Value: Maintains cryptographic integrity by preventing secure element operation outside valid voltage window. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E33DBVR | 3.3-V threshold, SOT-23-3, 0.25-µA IQ, 200-ms delay, ±0.5% accuracy | Lower threshold and higher accuracy; unsuitable for 5-V systems requiring 4.63-V trip point | Select only if system uses 3.3-V VCC and demands tighter threshold tolerance. |
| TPS3823K33DBVR | 3.3-V threshold, SOT-23-5, 15-µA IQ, 200-ms delay, ±2.4% accuracy, push-pull output | Different threshold and output type; lacks open-drain flexibility for wired-OR buses | Choose when push-pull drive strength is needed and 3.3-V supervision suffices. |
Compared with TL7700CPSR, TLV809E33DBVR offers superior accuracy but mismatches the 4.63-V requirement, while TPS3823K33DBVR provides push-pull drive but targets 3.3-V rails - making neither a drop-in replacement, though both serve adjacent supervision needs in TI's portfolio.
Availability
TL7700CPSR is available at Aetrix Electronics and suitable for industrial control systems, battery-powered instrumentation, medical handhelds, and point-of-sale terminals requiring stable component supply and long-term manufacturability.
Supply support for TL7700CPSR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets since 1930.
The TL7700CPSR belongs to TI's foundational voltage supervisor product line, engineered for cost-sensitive, non-automotive applications where precise undervoltage detection and robust reset timing are essential for system reliability.
FAQ
What is the exact reset threshold voltage of TL7700CPSR?
The TL7700CPSR has a fixed undervoltage detection threshold of 4.63 V with ±2.5% accuracy over temperature and supply voltage. This value is trimmed at wafer test and does not require external configuration. The threshold remains stable across the full −40°C to +85°C operating range, and TL7700CPSR asserts reset when VCC falls below this level.
Does TL7700CPSR support manual reset functionality?
No, TL7700CPSR does not include a manual reset (MR) input. It is a purely voltage-triggered supervisor with no provision for external reset assertion. If manual reset capability is required, alternatives such as TPS3823K33DBVR or TLV809E33DBVR - both offering MR pins - should be evaluated instead of TL7700CPSR.
What package type and pin count does TL7700CPSR use?
TL7700CPSR is packaged in a 5-pin SOIC (Small Outline Integrated Circuit) with standard 1.27-mm lead pitch. Two pins are designated NC (no connect), one is VCC, one is GND, and one is the open-drain RESET output. The SOIC-5 footprint is widely supported in PCB design tools and assembly processes.
Can TL7700CPSR be used in automotive applications?
TL7700CPSR is not AEC-Q100 qualified and is specified only for industrial temperature range (−40°C to +85°C). It lacks automotive-grade screening, qualification testing, and failure rate reporting. For automotive use, TI recommends AEC-Q100 qualified alternatives such as TPS3823K33QDBVRQ1 or TPS3895ADBVR - not TL7700CPSR.
What is the quiescent current consumption of TL7700CPSR?
TL7700CPSR draws 6 µA typical quiescent current (IDD) across its 1.0–5.5 V supply range. This low static current enables continuous monitoring in battery-backed or energy-harvesting systems without meaningful impact on standby runtime. Measured values remain within datasheet limits under all specified operating conditions for TL7700CPSR.
TL7700CPSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 10µs Maximum Propagation Delay
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
TL7700CPSR FAQ
1.How can I place an order for TL7700CPSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL7700CPSR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TL7700CPSR reliable?
The price and inventory of TL7700CPSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL7700CPSR is usually 5 days.
3.What payment methods are accepted for TL7700CPSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL7700CPSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL7700CPSR?
TL7700CPSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL7700CPSR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TL7700CPSR?
For technical support, including TL7700CPSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL7700CPSR requirements.
6.How does Aetrix verify that TL7700CPSR is sourced from the original manufacturer or authorized distributors?
All TL7700CPSR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TL7700CPSR meets industry standards.
7.What is the process for return or replacement of TL7700CPSR?
All TL7700CPSR units undergo pre-shipment inspection (PSI). If there is an issue with TL7700CPSR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TL7700CPSR part is unused and in its original packaging.
Return procedure for TL7700CPSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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