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HomeProductsIntegrated Circuits (ICs)PMIC - SupervisorsBD48K56G-TL
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BD48K56G-TL - Rohm Semiconductor

Manufacturer Part Number
BD48K56G-TL
Manufacturer
LAPIS Technology
Allelco Part Number
98D-BD48K56G-TL
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
2,639 pcs available, New & Original
Parts Description
IC SUPERVISOR 1 CHANNEL 3SSOP
Package
3-SSOP
Data sheet
BD48K56G-TL.pdf

HTML Datasheet

SSOP3 Taping Spec.pdf

Other Related Documents

BD48K56G-TL Flammability.pdf

Environmental Information

BD48K56G-TL Whisker Info.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 2639
  • Unit Price: $0.156
  • Subtotal: $0.00

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1+ $0.156 $0.16
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

BD48K56G-TL Tech Specifications
Rohm Semiconductor - BD48K56G-TL technical specifications, attributes, parameters and parts with similar specifications to Rohm Semiconductor - BD48K56G-TL

Product Attribute Attribute Value
Manufacturer LAPIS Technology
Voltage - Threshold 5.6V
Type Voltage Detector
Supplier Device Package 3-SSOP
Series BD48Kxx
Reset Timeout -
Reset Active Low
Product Attribute Attribute Value
Package / Case TO-236-3, SC-59, SOT-23-3
Package Tape & Reel (TR)
Output Open Drain or Open Collector
Operating Temperature -40°C ~ 105°C (TA)
Number of Voltages Monitored 1
Mounting Type Surface Mount
Base Product Number BD48K56

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

How does the BD48K56G-TL compare to other voltage detectors in terms of threshold accuracy and stability over temperature for battery-powered monitoring applications?
The BD48K56G-TL offers a fixed 5.6V detection threshold with typical hysteresis, making it suitable for precise power-on reset functions in systems requiring stable voltage supervision. While its absolute accuracy is not specified as ±1%, industrial-grade operation from -40°C to 105°C ensures consistent performance across environmental extremes. Compared to adjustable detectors like the MAX809, this part trades flexibility for guaranteed threshold consistency, which benefits designs where tight reset timing is critical. Its open-drain output also simplifies interfacing with microcontrollers, reducing component count versus push-pull alternatives.
What are the key differences between the BD48K56G-TL and substitute models such as the BD48L56G-TL when selecting a supervisor IC for a low-power embedded system?
The primary difference lies in supply voltage range and power consumption characteristics—while both share the same 5.6V threshold and package, the BD48L56G-TL is optimized for lower input voltages (down to 1.8V), making it more appropriate for modern low-voltage MCUs. In contrast, the BD48K56G-TL targets higher rail systems and may offer slightly better noise immunity due to internal architecture differences. For a 3.3V or 5V system, either could work, but the L-series provides greater design margin if future downscaling is anticipated. The K-series, however, remains preferable when operating near 5.6V rails without additional regulation.
Can the BD48K56G-TL safely drive a microcontroller’s reset pin directly, and what external components are needed to ensure reliable operation during brownout conditions?
Yes, the BD48K56G-TL features an active-low, open-drain output that can directly interface with most microcontroller reset inputs. However, a pull-up resistor (typically 10kΩ) to VCC is required to maintain a high logic level during normal operation. To enhance noise immunity and prevent false resets, adding a small capacitor (e.g., 100nF) between the reset line and ground improves transient response. This configuration ensures clean transitions even under rapid load changes, which is especially important in automotive or industrial environments where electrical noise is prevalent.
How should layout considerations affect placement of the BD48K56G-TL on a PCB to minimize susceptibility to voltage transients and ensure accurate threshold detection?
Due to its sensitivity to supply rail fluctuations, the BD48K56G-TL should be placed close to the main power source with short traces to reduce parasitic inductance and resistance. Avoid routing sensitive signals parallel to the power path, and consider using a dedicated decoupling capacitor (≥1μF) near the VDD pin to stabilize input voltage during current surges. Ground plane proximity further enhances noise rejection. These practices help maintain reliable threshold comparison, particularly in systems with switching regulators or pulsed loads.
Is the BD48K56G-TL suitable for use in harsh environments such as automotive applications, given its temperature rating and packaging?
With an operating temperature range of -40°C to 105°C and a moisture sensitivity level (MSL) of 3 (168 hours), the BD48K56G-TL meets many industrial and some automotive qualification standards. Its 3-SSOP package provides adequate thermal and mechanical robustness for most non-severe automotive use cases. However, full AEC-Q100 compliance would require verification by the manufacturer, so designers targeting production vehicles must confirm reliability through additional testing. For off-board or infotainment modules, however, it represents a cost-effective solution without compromising durability.
What impact does hysteresis have on the BD48K56G-TL’s behavior during voltage ripple scenarios, and how does this influence system-level stability?
Although hysteresis isn’t explicitly documented for the BD48K56G-TL, ROHM’s BD48Kxx series typically incorporates internal hysteresis to prevent chatter during marginal voltage conditions. This means the device won’t toggle the reset signal with every minor ripple below 5.6V, improving system stability during startup or dynamic load changes. As a result, downstream logic experiences cleaner resets, reducing the risk of corrupted states. Designers can expect reliable operation even with supply dips up to tens of millivolts, assuming adequate decoupling is implemented.
How does the choice between open-drain and push-pull outputs affect integration of the BD48K56G-TL into a multi-supervisor system?
The BD48K56G-TL’s open-drain output enables wired-OR configurations with other reset sources, allowing multiple supervisory circuits to share a single reset line without contention. This reduces pin count and simplifies firmware handling compared to push-pull outputs, which can cause bus conflicts. In contrast, push-pull devices require careful coordination to avoid shoot-through currents. For a system using several BD48K56G-TLs alongside other supervisors, the open-drain topology offers greater scalability and fault tolerance, though it necessitates external pull-ups.
What precautions should be taken when substituting the BD48K56G-TL with alternative parts like the BD48L56G-TL in existing schematics?
Substitution requires verifying compatibility of operating voltage ranges, output drive strength, package footprint, and pinout. The BD48L56G-TL supports lower supply voltages but may have different propagation delays or power-down leakage characteristics. Ensure that the new part maintains correct logic levels at all expected VDD values. Additionally, confirm that reset pulse widths meet MCU requirements post-substitution. Simulation or prototype validation is recommended before committing to production, especially in safety-critical applications.

Parts with Similar Specifications

The three parts on the right have similar specifications to Rohm Semiconductor BD48K56G-TL

Product Attribute BD48K60G-TL BD48K59G-TL BD48K54G-TL BD48K45G-TL
Part Number BD48K60G-TL BD48K59G-TL BD48K54G-TL BD48K45G-TL
Manufacturer Rohm Semiconductor Rohm Semiconductor Rohm Semiconductor Rohm Semiconductor
Voltage - Threshold - - - -
Series - - - -
Output - - - -
Reset Timeout - - - -
Type - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Reset - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Mounting Type - Surface Mount Through Hole Surface Mount
Base Product Number - DAC34H84 MAX500 ADS62P42
Number of Voltages Monitored - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

BD48K56G-TL Datasheet PDF

Download BD48K56G-TL pdf datasheets and Rohm Semiconductor documentation for BD48K56G-TL - Rohm Semiconductor.

HTML Datasheet
SSOP3 Taping Spec.pdf
Other Related Documents
BD48K56G-TL Flammability.pdf
Environmental Information
BD48K56G-TL Whisker Info.pdf

Customers Also Interested in

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Customer Reviews

Evaluation: 10 Articles

  • Arch***ct
    Jul 15, 2026

    Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.

  • FPGA***lorer88
    Jul 7, 2026

    The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.

  • Nath***oleman
    Jun 29, 2026

    Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.

  • 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.

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Note:
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BD48K56G-TL Image

BD48K56G-TL

Rohm Semiconductor
98D-BD48K56G-TL

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

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