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Texas Instruments BQ3060PWR
- Part No.:
- BQ3060PWR
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
BQ3060PWR.pdf
- Description:
- IC GAS GAUGE LI-ION 2-4C 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,976
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Product details
Overview
BQ3060PWR from Texas Instruments is a single-chip, SBS 1.1-compliant battery manager IC for 2–4 series Li-ion/Li-polymer packs, integrating coulomb counting (15-bit effective resolution), dual delta-sigma ADCs (16-bit for voltage/temp, 15–22-bit integrator for current), and hardware-based overcurrent/short-circuit protection. It performs CEDV gas gauging, cell balancing drive, SHA-1 authentication, and P-channel FET control in netbook and medical portable instruments.
For engineers reviewing the BQ3060PWR datasheet, BQ3060PWR pinout, BQ3060PWR application, or BQ3060PWR equivalent, this page delivers verified technical context on SMBus 1.1 interface timing (up to 400 kHz), 24-pin TSSOP package layout, low-power sleep mode (<69 μA), integrated 2.7 V regulator (REG27), and dual thermistor support (TS1/TS2) - all critical for smart battery pack design validation and replacement selection.
Technical Context
The BQ3060PWR implements a dual-ADC architecture: one 16-bit delta-sigma ADC with 16-channel multiplexer for cell voltages (VC1–VC4), pack voltage (BAT), temperature (TS1/TS2), and sense resistor differential (SRP/SRN); another high-resolution integrator ADC (15–22-bit) dedicated to coulomb counting with ±0.007%FSR INL and 10 μV offset error. Its AFE includes programmable gain, auto-calibration for SRP/SRN offset, and 5 mΩ–20 mΩ sense resistor compatibility.
Protection logic combines software-configurable first-level safety (overvoltage, undervoltage, overtemperature) with hardware-triggered second-level responses via FUSE pin activation, including discharge overcurrent detection (50–200 mV threshold), short-circuit in charge/discharge (±50–300 mV), and thermal shutdown at 125–175°C. All protections feature configurable delay timers (e.g., t(OCDD) = 1–31 ms) and independent enable/disable control per function.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | PACK input: 5.2–25 V; supports startup at 5.5 V and shutdown at 3.3 V - enables operation across 2S–4S Li-ion stacks. |
| Coulomb Counter | 15-bit effective resolution, ±10 μV offset error, 250 ms conversion time - delivers high-accuracy capacity tracking with minimal drift over temperature. |
| Cell Voltage Accuracy | ±10 mV (–10°C to 60°C), ±35 mV (–40°C to 85°C) - factory-calibrated per-cell measurement ensures reliable state-of-charge estimation. |
| SMBus Interface | Compliant with SMBus 1.1; supports 10–100 kHz slave mode and 40–400 kHz XL mode - enables robust host communication with flexible timing margins. |
| Power Consumption | Sleep mode: 61–69 μA; normal mode: 441 μA - extends battery runtime during idle states without sacrificing real-time monitoring capability. |
| FET Drive Outputs | CHG/DSG/ZVCHG pins drive P-channel MOSFETs with VO(FETON) ≥12 V at 20 V BAT - ensures full enhancement of high-side protection FETs in compact pack designs. |
| Thermal Sensing | Internal sensor ±3°C accuracy + two external NTC inputs (TS1/TS2) with 17–20 kΩ internal bias - provides redundant, system-level thermal monitoring for JEITA-compliant charging. |
Pinout & Package
Package: 24-pin TSSOP (PW), body size 4.4 mm × 7.8 mm, 0.65 mm pitch. Thermal resistance RθJA = 83.6°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BAT | Power input reference | Connects to battery stack negative terminal; serves as analog ground reference for VCx and SRN inputs. |
| VC1–VC4 | Cell voltage sensing & balancing drive | Differential inputs for 2–4 series cells; each doubles as open-drain driver for external balancing FETs (RBAL_drive = 0.85–5.7 kΩ). |
| SRP / SRN | Coulomb counter analog inputs | Measure voltage drop across sense resistor (5–20 mΩ); support bipolar range (–0.20 V to +0.25 V) for bidirectional current detection. |
| TS1 / TS2 | External thermistor interfaces | Accept NTC thermistors (e.g., Semitec 103AT); internal 17–20 kΩ pull-up enables ratiometric temperature measurement. |
| CHG / DSG / ZVCHG | P-channel FET gate drivers | Open-drain outputs with 12–18 V drive capability; control charge, discharge, and pre-charge FETs independently. |
| FUSE | Secondary protector I/O | Push-pull output to blow external fuse; also functions as input to detect blown-fuse state - enables irreversible safety cutoff. |
| SMBD / SMBC | SMBus data/clock | Two-wire interface compliant with SMBus 1.1; supports high-speed 400 kHz programming and broadcast alerts to host controller. |
| REG27 | Internal 2.7 V LDO output | Stable 2.7 V ±0.5% supply for internal circuitry; capable of sourcing 25–50 mA - eliminates need for external bias rail. |
Key Features
| Feature | Design Value |
|---|---|
| CEDV Gas Gauging | Compensates end-of-discharge voltage for temperature and state-of-charge, enabling accurate remaining capacity prediction without full discharge cycles. |
| Hardware Overcurrent Protection | Detects discharge overcurrent (OCD), short-circuit in charge (SCC), and short-circuit in discharge (SCD) with sub-millisecond response (≤915 µs) and programmable thresholds. |
| SHA-1 Authentication | Prevents unauthorized battery pack replacement by validating cryptographic signatures during SMBus handshake - critical for OEM security compliance. |
| Integrated Flash Memory | 20k write-cycle endurance, 10-year data retention; stores calibration coefficients, lifetime logs, and user-defined configuration parameters non-volatilely. |
| Cell Balancing Driver | Four independent VCx pins provide active external balancing control with programmable on-resistance (0.85–5.7 kΩ), supporting voltage-based balancing during charge. |
Applications
| Netbook Battery Management | Medical Portable Instrument Power |
|---|---|
Use Scenario: Smart battery pack in ultra-thin netbooks requiring precise runtime estimation and JEITA-compliant charging. IC Role / Device Role / Timing Role: Primary gas gauge and protection controller; manages CHG/DSG FETs, reports SOC/SOH via SMBus 1.1, executes CEDV algorithm. Use Value: Enables <69 μA sleep current and accurate capacity tracking across 0–100% SOC, extending usable runtime by up to 8% versus basic coulomb counters. |
Use Scenario: Rechargeable battery system in FDA-cleared handheld diagnostic devices needing fail-safe thermal and overvoltage protection. IC Role / Device Role / Timing Role: Dual-role safety monitor - uses TS1/TS2 for real-time thermistor feedback and FUSE pin for irreversible shutdown on overtemperature. Use Value: Delivers certified second-level protection (125–175°C thermal shutdown, ±10 mV cell voltage accuracy) meeting IEC 62368-1 requirements for medical power systems. |
| Test Equipment Battery Pack | Industrial Portable Analyzer |
Use Scenario: Field-deployable battery-powered oscilloscope or multimeter requiring long-term calibration stability and data logging. IC Role / Device Role / Timing Role: Lifetime data logger and calibration anchor; stores 10+ years of voltage/current/temperature history in internal flash memory. Use Value: Maintains traceable calibration records with 20k-program-cycle flash endurance and ±10 mV cell voltage accuracy - reduces recalibration frequency by 40%. |
Use Scenario: Ruggedized environmental analyzer operating in –40°C to 85°C ambient with intermittent high-current loads. IC Role / Device Role / Timing Role: Robust pack manager handling wide VIN (5.2–25 V), extreme temp operation, and hardware-triggered fault isolation via FUSE pin. Use Value: Guarantees functional operation across full industrial temperature range with <1% full-scale error drift and 150 PPM/°C ADC stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ3050PWR | Lacks ZVCHG pin and pre-charge FET drive; no external cell balancing driver on VCx pins; reduced protection set (no SCC/SCD hardware detection). | Suitable only for simpler 2–3S packs without zero-volt recovery or active balancing; not compliant with JEITA fast-charge profiles requiring pre-charge. | Select BQ3050PWR only if cost sensitivity outweighs need for ZVCHG functionality and hardware short-circuit protection. |
| BQ30Z554RGER | 48-pin VQFN package; adds integrated high-side charge/discharge FET drivers (no external MOSFETs required); includes enhanced SHA-256 authentication. | Targets higher-power 4S–6S applications (e.g., power tools); eliminates external FET layout but increases PCB area and thermal complexity. | Choose BQ30Z554RGER when board space allows larger package and system requires embedded FET drivers plus stronger crypto. |
Compared with BQ3060PWR, BQ3050PWR omits critical hardware safety features (ZVCHG, SCC/SCD detection), while BQ30Z554RGER trades compact TSSOP integration for higher integration density and stronger security - making BQ3060PWR the optimal balance of size, safety, and configurability for mid-tier portable instruments.
Availability
BQ3060PWR is available at Aetrix Electronics and suitable for netbook battery packs, medical portable instruments, test equipment power systems, and industrial portable analyzers requiring stable component supply and long-lifecycle support.
Supply support for BQ3060PWR 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 and embedded processing technologies, with decades of expertise in battery management systems and power electronics.
The BQ3060PWR belongs to TI's bq30 family of smart battery managers, designed specifically for cost-sensitive, space-constrained 2–4S Li-ion/Li-polymer applications demanding high-accuracy gauging, comprehensive protection, and SMBus interoperability.
FAQ
What is the primary function of the BQ3060PWR in a battery pack?
The BQ3060PWR serves as a fully integrated battery manager IC that performs real-time coulomb counting, CEDV-based gas gauging, hardware- and software-configurable protection (overvoltage, overcurrent, short-circuit, overtemperature), and SMBus 1.1 communication for 2–4 series Li-ion/Li-polymer battery packs. Its role includes controlling CHG/DSG/ZVCHG FETs, managing cell balancing via VCx pins, and providing SHA-1 authentication - all within a single 24-pin TSSOP package.
Does the BQ3060PWR support zero-volt charging, and how is it implemented?
Yes, the BQ3060PWR supports zero-volt charging through its dedicated ZVCHG pin (Pin 22), which drives a P-channel pre-charge FET. When enabled, ZVCHG provides controlled low-current charging to deeply discharged cells before main charging begins. The BQ3060PWR monitors cell voltages and automatically engages ZVCHG when any cell falls below the configured threshold, ensuring safe recovery without risking lithium plating.
How does the BQ3060PWR handle cell voltage measurement accuracy across temperature?
The BQ3060PWR achieves ±10 mV cell voltage accuracy from –10°C to 60°C and ±35 mV from –40°C to 85°C using factory-calibrated ADC and high-voltage translation circuitry. It compensates for temperature-induced drift via internal calibration routines and supports customer-performed voltage calibration using the Data Flash Programming and Calibrating the bq3060 Gas Gauge (SLUA502) procedure - ensuring consistent accuracy across operational life.
What protection features are implemented in hardware versus firmware on the BQ3060PWR?
The BQ3060PWR implements hardware-based overcurrent in discharge (OCD), short-circuit in charge (SCC), and short-circuit in discharge (SCD) protection with sub-millisecond response (≤915 µs). These trigger directly from analog comparators feeding the AFE, independent of CPU execution. In contrast, overvoltage, undervoltage, and overtemperature protections are software-configurable first-level responses, while FUSE pin activation enables irreversible second-level shutdown for critical faults like safety overvoltage or AFE register corruption.
Can the BQ3060PWR operate without an external microcontroller, and what interfaces does it require?
No, the BQ3060PWR requires an external host controller for configuration, calibration, and runtime command exchange via its SMBus 1.1-compatible two-wire interface (SMBD/SMBC pins). It does not operate autonomously: the host must initialize protection thresholds, update JEITA charging profiles, read SOC/SOH data, and manage flash memory contents. No UART, SPI, or I²C alternatives exist - SMBus is the sole supported digital interface for the BQ3060PWR.
BQ3060PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Multi-Function Controller
- 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:
- 24-TSSOP
BQ3060PWR FAQ
1.How can I place an order for BQ3060PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ3060PWR 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 BQ3060PWR reliable?
The price and inventory of BQ3060PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ3060PWR is usually 5 days.
3.What payment methods are accepted for BQ3060PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ3060PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ3060PWR?
BQ3060PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ3060PWR 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 BQ3060PWR?
For technical support, including BQ3060PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ3060PWR requirements.
6.How does Aetrix verify that BQ3060PWR is sourced from the original manufacturer or authorized distributors?
All BQ3060PWR 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 BQ3060PWR meets industry standards.
7.What is the process for return or replacement of BQ3060PWR?
All BQ3060PWR units undergo pre-shipment inspection (PSI). If there is an issue with BQ3060PWR, 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 BQ3060PWR part is unused and in its original packaging.
Return procedure for BQ3060PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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