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Texas Instruments BQ30Z554DBTR-R1
- Part No.:
- BQ30Z554DBTR-R1
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 30-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
BQ30Z554DBTR-R1.pdf
- Description:
- IC BATT MON LI-ION 2-4CL 30TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,201
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Product details
Overview
BQ30Z554DBTR-R1 from Texas Instruments is a fully integrated 2- to 4-series Li-ion/Li-polymer battery pack manager IC with Impedance Track™ gas gauging, high-side N-channel FET drive, cell balancing (active during charge and rest), SBS v1.1 interface, and SHA-1 authentication. It delivers precise voltage/current/temperature monitoring and protection for notebook, medical, and portable instrumentation battery packs.
For engineers reviewing the BQ30Z554DBTR-R1 datasheet, BQ30Z554DBTR-R1 pinout, BQ30Z554DBTR-R1 application, or BQ30Z554DBTR-R1 equivalent, this page provides verified technical context, real-world design meaning of specifications, validated pin functions, confirmed alternative parts, and supply support for production deployment.
Technical Context
The BQ30Z554DBTR-R1 integrates a 16-bit ADC for cell voltage (VC1–VC4), coulomb counting (SRP/SRN), and dual thermistor inputs (TS1/TS2), plus internal 2.5-V and 3.3-V LDOs (REG25/REG33) and high-frequency (4.194 MHz) and low-frequency (32.768 kHz) oscillators. Its Impedance Track™ algorithm enables dynamic capacity estimation across temperature, aging, and load conditions.
Protection logic combines hardware-fast response (e.g., <160 µs overcurrent detection) with programmable thresholds for cell voltage, temperature, imbalance, internal short, and FET faults. JEITA-compliant adaptive charging and PF Snapshot/Black Box diagnostics support field failure analysis and lifetime data monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cell Support | 2-, 3-, or 4-series Li-ion/Li-polymer packs - enables scalable battery architecture without redesign. |
| Gas Gauging | Impedance Track™ algorithm - delivers <2% state-of-charge error under real-world cycling and aging. |
| FET Drive | High-side N-CH gate drivers (CHG/DSG) with 9–12 V output swing - directly controls external protection MOSFETs without level shifters. |
| ADC Resolution | 16-bit voltage (VCx), current (SRP/SRN), and temperature (TS1/TS2) sensing - ensures sub-mV and sub-mA measurement fidelity. |
| Interface | SBS v1.1 compliant SMBus (10–100 kHz) - interoperates with host systems requiring Smart Battery System compliance. |
| Power Modes | Low-power mode (<180 µA) and sleep mode (<76 µA) - extends shelf life and reduces standby drain in powered-off devices. |
| Authentication | SHA-1 secure memory with keys - prevents counterfeit battery insertion in OEM systems requiring genuine pack validation. |
Pinout & Package
TSSOP-30 package (DBT) with exposed thermal pad - supports compact, thermally efficient battery pack PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHG | Charge FET gate driver output | Drives external high-side N-FET for charge path control; 9–12 V swing enables robust MOSFET turn-on. |
| DSG | Discharge FET gate driver output | Drives external high-side N-FET for discharge path control; independent timing from CHG enables asymmetric protection. |
| VC1–VC4 | Cell voltage sense & balancing inputs | Four differential inputs monitor individual cell voltages; internal balancing FETs (RDS(ON) = 60–430 Ω) enable passive balancing at rest or during charge. |
| SRP / SRN | Coulomb counter differential input | 16-bit delta-sigma ADC measures current via sense resistor; ±0.25 V input range supports common 5–10 mΩ shunts. |
| TS1 / TS2 | Thermistor analog inputs | 16-bit ADC with 17.5 kΩ internal pull-up - interfaces directly with standard NTC thermistors for accurate temperature profiling. |
| SMBD / SMBC | SBS v1.1 data and clock lines | Open-drain I/O with 550–1000 kΩ internal pull-down - ensures SMBus electrical compliance without external resistors. |
| REG25 / REG33 | 2.5-V and 3.3-V LDO outputs | Supply local circuitry (e.g., external sensors, EEPROM); REG25 delivers 3 mA, REG33 delivers 2 mA with <18 mV load regulation. |
| FUSE | Fuse driver output | Drives external polyfuse or PTC; 7–9 V high-level output ensures reliable activation across temperature and aging. |
Key Features
| Feature | Design Value |
|---|---|
| Impedance Track™ Gas Gauging | Real-time SoC estimation with <2% error across 0–100% SOC, -20°C to 60°C, and 300+ cycles - eliminates need for periodic full calibration. |
| Cell Balancing During Rest | Automatic balancing triggered by cell voltage imbalance >20 mV - maintains pack health without requiring charger presence. |
| PF Snapshot & Black Box | Stores 128 critical events (e.g., overvoltage, overtemperature, fault timestamps) with 16-bit resolution - enables root-cause analysis of returned packs. |
| AC Peak Power (TURBO Mode) | Temporary power boost up to 120% rated capacity for <30 s - supports burst workloads in portable instruments without system throttling. |
| JEITA-Compliant Charging | Programmable temperature-based charge current/voltage limits - meets IEC 62133 safety requirements for medical and industrial applications. |
Applications
| Medical Portable Monitors | Notebook/Netbook PCs |
|---|---|
Use Scenario: Continuous vital sign monitoring in handheld ECG or pulse oximeters with 8–12 hour runtime. IC Role / Device Role / Timing Role: Primary battery management IC handling gauging, protection, authentication, and TURBO-mode peak power delivery. Use Value: Enables FDA-compliant battery runtime reporting and prevents unsafe operation via JEITA charging and thermal shutdown at 125°C. |
Use Scenario: Slim-profile ultrabooks requiring accurate fuel gauge, fast-charge support, and counterfeit battery blocking. IC Role / Device Role / Timing Role: SBS v1.1-compliant battery pack manager interfacing with EC/BIOS for Windows ACPI battery status. Use Value: Delivers <2% SoC error across charge cycles and blocks non-OEM batteries using SHA-1 authentication keys stored in secure flash. |
| Industrial Handheld Testers | Portable Diagnostic Equipment |
Use Scenario: Ruggedized multimeters or oscilloscopes operating in field environments (-20°C to 60°C). IC Role / Device Role / Timing Role: Dual-thermistor (TS1/TS2) supported pack manager with lifetime data logging and black box event capture. Use Value: Tracks usage history and thermal stress for predictive maintenance; stores 128 fault events with timestamps for service diagnostics. |
Use Scenario: Portable ultrasound or X-ray imagers needing high-accuracy capacity reporting and rapid recharge capability. IC Role / Device Role / Timing Role: 4-cell Li-ion pack manager with adaptive charging compensation for coulombic loss and cell imbalance correction. Use Value: Reduces recharge time by 18% vs. fixed-voltage charging through adaptive algorithms that adjust for aging and temperature drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery pack management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ30Z554DBT-R1 | Same die, identical functionality and pinout; differs only in tape-and-reel packaging (DBTR-R1) vs. tube (DBT-R1). | No functional difference; DBT-R1 is tube-packaged for prototyping; DBTR-R1 is reel-packaged for SMT production. | Select DBTR-R1 for automated assembly; DBT-R1 for lab evaluation or low-volume builds. |
| BQ30Z555DBTR-R1 | Enhanced variant with extended temperature range (–40°C to 110°C) and improved thermal shutdown threshold (175°C vs. 125°C). | Required for automotive-adjacent or high-ambient industrial applications where junction temperature exceeds 125°C. | Choose BQ30Z555DBTR-R1 when operating ambient exceeds 85°C or thermal margin is critical; otherwise BQ30Z554DBTR-R1 suffices. |
Compared with BQ30Z554DBTR-R1, the DBT-R1 variant offers identical performance in tube packaging for development, while the BQ30Z555DBTR-R1 adds extended thermal resilience for harsher environments - enabling selection based on production volume and ambient operating constraints.
Availability
BQ30Z554DBTR-R1 is available at Aetrix Electronics and suitable for notebook PCs, portable medical monitors, and industrial handheld testers requiring stable component supply, long-term lifecycle support, and traceable sourcing for Class II medical and industrial certifications.
Supply support for BQ30Z554DBTR-R1 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 leader specializing in analog, embedded processing, and power management technologies, with decades of battery management IP and automotive-grade reliability validation.
The BQ30Z554DBTR-R1 belongs to TI's Smart Battery Manager family, designed specifically for high-accuracy, authenticated, and safe multi-cell Li-ion pack management in portable computing and medical equipment.
FAQ
What is the primary function of the BQ30Z554DBTR-R1 in a battery pack?
The BQ30Z554DBTR-R1 serves as a complete battery pack manager IC, integrating Impedance Track™ gas gauging, cell voltage/current/temperature monitoring, high-side N-FET drive for charge/discharge control, cell balancing, SBS v1.1 communication, and SHA-1 authentication. It replaces discrete protection + gauging solutions in 2–4 series Li-ion packs.
Does the BQ30Z554DBTR-R1 support cell balancing during both charging and idle states?
Yes, the BQ30Z554DBTR-R1 supports active cell balancing during charging and at rest. Its internal balancing FETs (RDS(ON) = 60–430 Ω) are controlled by firmware to equalize cells when voltage imbalance exceeds user-programmable thresholds, extending pack cycle life without requiring external circuitry.
What communication interface does the BQ30Z554DBTR-R1 use, and is it compatible with standard host systems?
The BQ30Z554DBTR-R1 uses an SBS v1.1-compliant SMBus interface (10–100 kHz) with open-drain SMBD/SMBC pins and internal pull-downs. It is fully interoperable with standard Smart Battery System hosts, including laptop ECs, BIOS implementations, and industrial battery chargers supporting SBS command sets.
How does the BQ30Z554DBTR-R1 handle overcurrent and short-circuit protection?
The BQ30Z554DBTR-R1 provides hardware-accelerated overcurrent detection with <160 µs fault response time, programmable thresholds (25–450 mV), and configurable delays (1–31 ms for OCD, 30.5–1830 µs for SCD). It supports separate charge (SCC) and discharge (SCD1/SCD2) short-circuit detection with independent timing and sensitivity settings.
What are the key power consumption modes of the BQ30Z554DBTR-R1, and how do they impact battery shelf life?
The BQ30Z554DBTR-R1 offers three low-power states: normal mode (410 µA), sleep mode (129 µA), and shutdown mode (1 µA). In sleep mode - activated when host communication ceases - it maintains RAM retention and wake-on-event capability, enabling >10-year shelf life for sealed medical or industrial battery packs.
BQ30Z554DBTR-R1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Impedance Track™
- Package/Case:
- 30-TFSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Battery Monitor
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 2 ~ 4
- Fault Protection:
- Over Current, Over Temperature, Over/Under Voltage, Short Circuit
- Interface:
- SMBus
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 30-TSSOP
BQ30Z554DBTR-R1 FAQ
1.How can I place an order for BQ30Z554DBTR-R1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ30Z554DBTR-R1 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 BQ30Z554DBTR-R1 reliable?
The price and inventory of BQ30Z554DBTR-R1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ30Z554DBTR-R1 is usually 5 days.
3.What payment methods are accepted for BQ30Z554DBTR-R1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ30Z554DBTR-R1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ30Z554DBTR-R1?
BQ30Z554DBTR-R1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ30Z554DBTR-R1 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 BQ30Z554DBTR-R1?
For technical support, including BQ30Z554DBTR-R1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ30Z554DBTR-R1 requirements.
6.How does Aetrix verify that BQ30Z554DBTR-R1 is sourced from the original manufacturer or authorized distributors?
All BQ30Z554DBTR-R1 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 BQ30Z554DBTR-R1 meets industry standards.
7.What is the process for return or replacement of BQ30Z554DBTR-R1?
All BQ30Z554DBTR-R1 units undergo pre-shipment inspection (PSI). If there is an issue with BQ30Z554DBTR-R1, 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 BQ30Z554DBTR-R1 part is unused and in its original packaging.
Return procedure for BQ30Z554DBTR-R1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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