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HomeProductsIntegrated Circuits (ICs)PMIC - SupervisorsTL7700CDGKR
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TL7700CDGKR - Texas Instruments

Manufacturer Part Number
TL7700CDGKR
Manufacturer
Texas Instruments
Allelco Part Number
32D-TL7700CDGKR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
22,984 pcs available, New & Original
Parts Description
IC SUPERVISOR 1 CHANNEL 8VSSOP
Package
8-VSSOP
Data sheet
TL7700CDGKR.pdf

HTML Datasheet

TL7700 Datasheet.pdf

PCN Design/Specification

TL7700 13/Dec/2016.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 22984
  • Unit Price: $3.051
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $3.051 $3.05
10+ $2.979 $29.79
30+ $2.931 $87.93
100+ $2.884 $288.40
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TL7700CDGKR Tech Specifications
Texas Instruments - TL7700CDGKR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TL7700CDGKR

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Threshold Adjustable/Selectable
Type Simple Reset/Power-On Reset
Supplier Device Package 8-VSSOP
Series -
Reset Timeout 10µs Maximum Propagation Delay
Reset Active Low
Product Attribute Attribute Value
Package / Case 8-TSSOP, 8-MSOP (0.118', 3.00mm Width)
Package Tape & Reel (TR)
Output Open Drain or Open Collector
Operating Temperature -40°C ~ 85°C (TA)
Number of Voltages Monitored 1
Mounting Type Surface Mount
Base Product Number TL7700

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

TL7700CDGKR Image
TL7700CDGKR (1)

Manufacturer Part Number

TL7700CDGKR

Manufacturer

Texas Instruments

Introduction

The TL7700CDGKR is a supervisory circuit designed for power management applications, providing simple reset/power-on reset functionality.

Product Features and Performance

Monitors one voltage level

Adjustable/Selectable voltage threshold

Open Drain or Open Collector output

Active low reset signal

Quick reset timeout with a maximum propagation delay of 10µs

Operates over a temperature range of -40°C to +85°C

Surface mountable, compatible with 8-TSSOP, 8-MSOP packages

Product Advantages

Precision monitoring for power-sensitive applications

Flexible threshold settings for diverse applications

Minimizes delay in system recovery with quick reset timeout

Suitable for harsh temperature environments

Compact package for space-constrained applications

Key Technical Parameters

Voltage Threshold: Adjustable/Selectable

Reset Timeout: 10µs Maximum Propagation Delay

Operating Temperature: -40°C ~ 85°C

Mounting Type: Surface Mount

Package: 8-TSSOP, 8-MSOP

Quality and Safety Features

Robust construction ensuring functionality under varying conditions

Meets standard requirements for electronic component safety

Compatibility

Compatible with a wide range of microcontroller and power management systems

Application Areas

Consumer Electronics

Automotive systems

Industrial Controls

Telecommunications

Product Lifecycle

Status: Active

This product is not nearing discontinuation and replacements or upgrades are readily available

Several Key Reasons to Choose This Product

Versatile voltage monitoring suitable for multiple applications

Quick system recovery with fast reset timeout feature

Robust performance in a wide range of temperatures

Compact form factor for space-sensitive designs

High reliability and compatibility with Texas Instruments' quality standards

Frequently Asked Questions(FAQ)

How does the TL7700CDGKR handle power supply monitoring in a 5V system with an adjustable threshold, and what are the implications for brownout protection?
The TL7700CDGKR is designed to monitor a single supply voltage with an adjustable threshold, making it suitable for systems requiring precise brownout detection. In a 5V system, the user can set the threshold via external resistors to trigger a reset when the input drops below a desired level—commonly around 4.65V or 4.3V depending on application requirements. This allows the supervisor IC to initiate a controlled system reset during under-voltage conditions, preventing erratic behavior. With a maximum propagation delay of 10µs, the device responds quickly enough to ensure reliable operation without excessive latency. The open-drain output enables wired-OR configurations across multiple supervisors if needed, enhancing fault tolerance in multi-supply environments.
What are the key differences between the TL7700CDGKR and the TL7700CDR comparator in terms of functionality and use case suitability?
While both share the same base product number (TL7700), the TL7700CDGKR is a supervisor with integrated reset generation based on a monitored voltage, whereas the TL7700CDR functions as a standard comparator without internal hysteresis or reset logic. The CDGKR variant includes active-low reset output, selectable thresholds, and timing control, making it ideal for microcontroller supervision and system recovery. In contrast, the CDR lacks these supervisory features and is better suited for analog signal comparison tasks. Designers should choose the CDGKR when needing automatic system reset upon undervoltage events and avoid the CDR for pure analog switching applications.
Can the TL7700CDGKR be used effectively in battery-powered devices with dynamic voltage scaling, and how does its propagation delay affect system responsiveness?
Yes, the TL7700CDGKR is well-suited for battery-powered devices employing dynamic voltage scaling due to its low quiescent current and fast response time. With a maximum propagation delay of just 10µs from threshold crossing to reset assertion, the device ensures timely intervention during rapid voltage transitions common in sleep-wake cycles or load changes. This short delay minimizes the window during which the system might operate unpredictably after a brownout. When paired with microcontrollers that support deep sleep modes, the supervisor helps maintain data integrity by forcing clean resets only after confirming sustained under-voltage conditions.
What considerations must be taken into account when cascading multiple TL7700CDGKR units for multi-voltage rail supervision in a complex embedded system?
Cascading multiple TL7700CDGKR devices requires careful attention to the open-drain outputs, which allow wired-OR connections but introduce cumulative capacitance and potential loading effects. Each unit’s reset line should be tied together through pull-up resistors appropriate for the total number of devices. Additionally, threshold settings must align with expected rail tolerances to prevent false triggers during normal transients. Since each IC monitors one voltage independently, cross-talk between rails must be minimized through proper PCB layout and decoupling. Designers should also verify that the combined response time remains within acceptable limits for their application, considering gate delays across all connected supervisors.
How does the operating temperature range of -40°C to 85°C influence the selection of external components for the TL7700CDGKR in automotive or industrial edge cases?
The industrial-grade temperature range (-40°C to 85°C) supports use in demanding environments but mandates careful component selection. Precision resistors used in the threshold-setting network must exhibit stable TCR (temperature coefficient of resistance) over this span to maintain accuracy. For example, a 0.1% initial tolerance resistor with <10 ppm/°C TCR ensures threshold drift remains within ±5mV across extremes. Similarly, pull-up resistors on the open-drain output should have low tempco to preserve rise times and noise margins. These choices ensure reliable operation where thermal cycling or ambient heat could otherwise compromise reset stability.
What is the significance of the Moisture Sensitivity Level (MSL) rating of MSL 1 for the TL7700CDGKR, and how does it impact manufacturing handling?
An MSL rating of 1 indicates that the TL7700CDGKR is not susceptible to moisture-induced damage and can be stored indefinitely under standard conditions without baking prior to reflow soldering. This simplifies inventory management and reduces production overhead in high-volume manufacturing. However, it still requires adherence to JEDEC standards for handling during assembly, including avoiding exposure beyond recommended floor life. For most SMT lines, this means no special storage or pre-conditioning is required, streamlining logistics and reducing risk of defects like popcorning during reflow.
In what scenarios would the adjustable threshold feature of the TL7700CDGKR provide tangible benefits over fixed-threshold alternatives?
Adjustable threshold capability offers significant flexibility in systems where nominal supply voltages vary slightly due to manufacturing tolerances or aging—such as in legacy 5V logic families or custom DC-DC converters. Instead of relying on tight-tolerance fixed supervisors, engineers can fine-tune the trip point using external resistors to accommodate real-world supply deviations. For instance, setting a threshold at 4.6V instead of 4.5V provides a small margin against transient dips while still protecting against prolonged under-voltage. This adaptability reduces BOM cost by eliminating need for precision-fixed devices and improves yield in production testing.
How does RoHS3 compliance and REACH status affect global regulatory adoption of the TL7700CDGKR in consumer electronics markets?
RoHS3 compliance confirms that the TL7700CDGKR meets updated European restrictions on hazardous substances, including stricter limits on phthalates and mercury. Combined with REACH Unaffected status, this signals full alignment with EU environmental regulations without requiring additional substance declarations or exemptions. As such, the device can be freely incorporated into consumer products marketed across Europe and other regions enforcing similar directives, minimizing legal and supply chain risks associated with non-compliant materials.
What role does the 8-VSSOP package play in space-constrained designs, and how does its footprint compare to alternative packaging options for similar supervisors?
The 8-VSSOP package measures 3.0mm x 3.0mm, offering a compact form factor ideal for handheld or space-limited embedded systems. Compared to SOIC-8 (5.3mm width), it occupies roughly half the board area, enabling higher density layouts. Its thin profile also supports flexible PCBs and reduces overall stack height in multi-layer assemblies. However, thermal performance is limited compared to larger packages like TSSOP-8, though sufficient for passive cooling in low-power applications. Engineers must balance size constraints against trace routing complexity near high-current paths.
How should the active-low reset output be interfaced with modern microcontrollers that expect push-pull reset inputs?
Most modern MCUs accept active-low reset signals regardless of output type, but compatibility depends on internal pull-up configuration. The TL7700CDGKR’s open-drain output requires an external pull-up resistor (typically 1kΩ–10kΩ) to VDD to ensure valid logic-high levels. If the MCU has an internal pull-up enabled on its reset pin, external resistance may be reduced or omitted—but verification through datasheet review is essential. Failure to provide adequate pull-up can result in undefined states or failure to release reset properly after voltage restoration.
What precautions are necessary when using the TL7700CDGKR in noisy power environments where supply rails experience frequent transients?
In electrically noisy systems, transient spikes near the threshold can cause spurious resets. To mitigate this, designers should implement filtering on the VCC monitor input using a small ceramic capacitor (e.g., 0.1µF) close to the IC, combined with series resistance if surge protection is needed. Additionally, selecting threshold margins wider than typical noise amplitudes (e.g., setting threshold above max observed ripple) prevents nuisance trips. Hysteresis can be added externally via RC feedback if required, although the TL7700 does not include built-in hysteresis. Careful PCB grounding and separation of analog and digital sections further reduce coupling risks.
Is the TL7700CDGKR suitable for use in redundant power architectures where primary and backup supplies are monitored independently?
Absolutely. The TL7700CDGKR’s single-channel design allows independent monitoring of primary and secondary rails by configuring separate instances for each supply. Each can generate its own reset signal, enabling graceful degradation or failover logic. By connecting outputs via diodes or logic gates, systems can prioritize reset sources based on priority or health metrics. This redundancy enhances reliability in critical applications like medical devices or communication infrastructure, where uninterrupted operation is paramount.
How does the ECCN classification (EAR99) influence export controls when sourcing or distributing the TL7700CDGKR globally?
Classified under EAR99, the TL7700CDGKR falls outside strict U.S. export restrictions, meaning it generally does not require licenses for shipment to most countries under standard commercial terms. This simplifies international procurement and distribution, particularly for defense-related or aerospace projects where ITAR-regulated parts would pose licensing hurdles. However, end-use verification is still advisable in sensitive sectors, as EAR99 items remain subject to general surveillance and certain embargoes apply regardless of technical classification.
What impact does the absence of built-in watchdog timer functionality have on system reliability when using the TL7700CDGKR?
The TL7700CDGKR only handles power-on reset and brownout detection, so it does not protect against software hangs or CPU lockups. Systems requiring watchdog capabilities must either use a dedicated WDT peripheral or add external circuitry. This distinction is crucial in safety-critical applications where both voltage supervision and runtime monitoring are needed. Designers should evaluate whether firmware-based watchdogs suffice or if additional hardware adds unacceptable complexity, balancing cost against functional requirements.
How does the propagation delay specification translate into real-world system behavior during sudden power loss events?
With a maximum propagation delay of 10µs, the TL7700CDGKR asserts reset within microseconds of detecting an under-voltage condition. During sudden power loss, this ensures the microcontroller enters reset state before executing corrupted instructions, preserving memory contents and registers. In contrast, slower supervisors might miss brief glitches or respond too late, leading to unpredictable code paths. The short delay also allows faster wake-up times once power stabilizes, improving system responsiveness in intermittent-load scenarios common in IoT nodes.
Can the TL7700CDGKR be safely powered down before its monitored supply to prevent reverse current flow?
No. Although many modern supervisors include reverse-current protection, the TL7700CDGKR does not specify such features in its electrical characteristics. If the IC’s VCC is present while the monitored input is absent (or grounded), leakage currents may occur, potentially affecting upstream circuitry. To avoid this, always ensure the monitored supply rises before enabling the supervisor’s power, or insert a Schottky diode in series with the VCC pin if bidirectional isolation is required.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TL7700CDGKR

Product Attribute TL7700CDGKRG4 TL7700CDGKT TL7700CPSR TL7700CPG4
Part Number TL7700CDGKRG4 TL7700CDGKT TL7700CPSR TL7700CPG4
Manufacturer Luminary Micro / Texas Instruments Texas Instruments Texas Instruments Luminary Micro / Texas Instruments
Number of Voltages Monitored - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Output - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Series - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Reset Timeout - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Type - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage - Threshold - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Reset - - - -

TL7700CDGKR Datasheet PDF

Download TL7700CDGKR pdf datasheets and Texas Instruments documentation for TL7700CDGKR - Texas Instruments.

HTML Datasheet
TL7700 Datasheet.pdf
PCN Design/Specification
TL7700 13/Dec/2016.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

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TL7700CDGKR Image

TL7700CDGKR

Texas Instruments
32D-TL7700CDGKR

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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