TL7705BCD Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TL7705BCD is a single-channel supply voltage supervisor and power-on reset generator by Texas Instruments for 5V systems in an 8-pin SOIC package. It features an adjustable threshold, programmable time delay, and integrated reset output for reliable microcontroller startup. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TL7705BCD Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated power-on reset generator with programmable time delay for reliable microcontroller and system initialization in 5V applications
- Adjustable undervoltage threshold allowing designers to customize reset assert and deassert voltage levels for specific power supply monitoring requirements
- Single-channel voltage supervisor in a compact 8-pin SOIC package minimizing board area while providing dedicated supply monitoring functionality
- Pb-free e4 RoHS-compliant construction with 15-year estimated end-of-life ensuring long-term availability for industrial and automotive system designs
Applications
The TL7705BCD is commonly used in microprocessor and microcontroller-based systems to monitor the 5V supply rail and generate a clean reset signal during power-up, power-down, and supply voltage dropout events. It ensures that processors do not operate under undefined conditions caused by insufficient supply voltage, preventing data corruption and erratic behavior in industrial controllers, embedded computers, and programmable logic devices. The adjustable threshold also makes it suitable for monitoring custom power rails in mixed-voltage system designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | POWER-ON RESET GENERATOR |
| Adjustable Threshold | YES |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 3.5mA |
| Supply Voltage-Max (Vsup) | 18V |
| Supply Voltage-Min (Vsup) | 3.6V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.55V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TL7705BCD:
Voltage Supervisor/Reset IC, Adjustable, 1 Channel, +4.55V, BIPolar, PDSO8
Voltage Supervisor/Reset IC, Adjustable, 1 Channel, +4.55V, BIPolar, PDSO8
Voltage Supervisor/Reset IC, Adjustable, 1 Channel, +4.55V, BIPolar, PDSO8
Voltage Supervisor/Reset IC, Adjustable, 1 Channel, +4.55V, BIPolar, PDSO8
Frequently Asked Questions
What does the TL7705BCD monitor and what does it output?
The TL7705BCD monitors the 5V power supply rail and generates a reset output signal when the supply voltage falls below a programmable threshold. This reset signal holds the microcontroller or processor in a reset state until the supply has recovered and remained stable for the programmed delay period.
Is the reset threshold adjustable on the TL7705BCD?
Yes, the TL7705BCD has an adjustable threshold, allowing designers to set the exact supply voltage level at which the reset is asserted and deasserted. This is typically configured using external resistor dividers connected to the sense input, enabling customization for various power rail monitoring requirements.
What is the programmable time delay feature of the TL7705BCD?
The TL7705BCD includes a programmable time delay that sets the minimum period the supply voltage must remain above the threshold before the reset output is deasserted. This delay, typically configured with an external capacitor, prevents false resets during supply voltage transients and ensures the system boots only when power is fully stable.
What package does the TL7705BCD use?
The TL7705BCD is available in an 8-pin SOIC package (JESD-30 code R-PDSO-G8). This compact surface-mount package is easy to place on PCBs and is compatible with standard automated SMT assembly processes used in industrial, consumer, and embedded electronics manufacturing.
What are suitable alternatives to the TL7705BCD?
Suitable alternatives include the TL7705A series variants, or modern supervisory ICs such as the TPS3836 or MCP101 series for similar voltage monitoring functions. When substituting, verify the reset threshold voltage, time delay range, output logic polarity, and package compatibility to ensure the replacement fits your existing PCB design.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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