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Texas Instruments BQ7692006PWR
- Part No.:
- BQ7692006PWR
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
BQ7692006PWR.pdf
- Description:
- IC BATT MON MULTI 3-5C 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,973
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Product details
Overview
BQ7692006PWR from Texas Instruments is a 3- to 5-series Li-ion/LiFePO₄ battery monitor AFE with integrated charge/discharge FET drivers, 14-bit cell voltage ADC (±10 mV accuracy at 25°C), coulomb counter, and hardware overvoltage/undervoltage/overcurrent protection. It supports e-bike and power tool battery packs requiring precise cell balancing and ultra-low-power SHIP mode.
For engineers reviewing the BQ7692006PWR datasheet, BQ7692006PWR pinout, BQ7692006PWR application, or BQ7692006PWR equivalent, key selection criteria include its fixed I²C address (0x18), no-CRC interface option, 20-pin TSSOP package, and support for up to five series cells in high-voltage industrial battery systems.
Technical Context
The BQ7692006PWR implements a fully integrated analog front-end with dual independent ADCs: one for cell voltage/temperature sensing (14-bit, ±10 mV typical accuracy) and another dedicated coulomb counter (16-bit, ±2 LSB INL). Its protection logic executes autonomous hardware-triggered responses-including OV/UV latching, OCD/SCD detection with programmable delay-and requires no EEPROM programming.
It features a 2.5-V or 3.3-V LDO regulator (REGOUT) powered from REGSRC, low-side N-channel FET drivers (CHG/DSG) capable of 10–14 V output swing, and a random-cell-connection-tolerant architecture that eliminates strict cell-order wiring constraints in pack assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cell Count Support | 3–5 series Li-ion or LiFePO₄ cells; enables compact 18-V battery packs. |
| I²C Address | Fixed 7-bit address 0x18; eliminates address conflict risk in multi-device systems. |
| ADC Resolution | 14-bit cell voltage ADC with 382 µV LSB; delivers ±10 mV accuracy at 25°C for reliable state-of-charge estimation. |
| Protection Triggers | Hardware-based OV/UV/OCD/SCD with user-programmable thresholds and delays; reduces host MCU intervention latency. |
| Supply Current | 40–195 µA in NORMAL mode (ADC/CC configurable); enables multi-year shelf life in SHIP mode (0.6–1.8 µA). |
| Package | 20-pin TSSOP (6.5 mm × 4.4 mm); compatible with standard SMT reflow and automated optical inspection. |
| Operating Temp | –40°C to +85°C ambient; validated for e-bike and power tool environments with thermal shutdown at 100–150°C. |
Pinout & Package
Package: 20-pin TSSOP (PW), 6.50 mm × 4.40 mm × 1.20 mm body size, lead pitch 0.65 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DSG | Discharge FET driver output | Drives low-side N-FET gate; outputs 10–14 V swing to control pack discharge path. |
| CHG | Charge FET driver output | Drives low-side N-FET gate; enables independent charge path control and reverse-current blocking. |
| VSS | Chip ground reference | Primary return for all internal analog/digital circuits; must be low-impedance connection to pack negative. |
| SDA / SCL | I²C bidirectional data / clock | Standard 3.3-V tolerant interface; supports CRC option (disabled in BQ7692006PWR variant). |
| VC0–VC5 | Cell voltage sense inputs | Differential inputs for 1st cell negative (VC0) through 5th cell positive (VC5); tolerate random cell connection order. |
| SRP / SRN | Current sense differential inputs | Measure pack current via external shunt; support ±200 mV input range with 8.44 µV LSB resolution. |
| ALERT | Open-drain interrupt output | Asserts on protection event or status change; doubles as boot override input via pull-up resistor. |
| REGSRC / REGOUT | LDO input / regulated output | REGSRC accepts 6–25 V; REGOUT supplies stable 2.5 V (or 3.3 V in other variants) for external circuitry. |
| TS1 / CAP1 | Thermistor bias / decoupling | TS1 connects to 10-kΩ 103AT thermistor; CAP1 provides local bypass for VC0–VC5 analog rail. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated cell balancing FETs | Internal 70-mA per-cell balancing current enables passive top-balancing without external components. |
| No EEPROM programming required | Factory-configured I²C address (0x18) and LDO voltage eliminate production-line configuration steps. |
| Random cell connection tolerance | Eliminates need for strict cell string ordering during pack assembly-reducing manufacturing error risk. |
| SHIP mode ultra-low power | 0.6–1.8 µA quiescent current extends shelf life and preserves battery capacity during storage. |
| Direct thermistor support | Three dedicated TS pins (TS1–TS3) with internal 10-kΩ pull-up enable direct 103AT thermistor interfacing. |
Applications
| e-Bike Battery Packs | Power Tool Battery Packs |
|---|---|
Use Scenario: 36-V, 10-Ah lithium-ion battery pack for Class 3 e-bikes with regenerative braking and USB-C charging. IC Role / Device Role / Timing Role: Primary AFE monitoring cell voltages, pack current, die temperature, and thermistor readings; triggers hardware protections within microseconds. Use Value: Enables accurate SOC/SOH estimation and prevents thermal runaway during high-current discharge cycles. | Use Scenario: 18-V cordless drill battery with fast-charge capability and real-time capacity reporting to tool display. IC Role / Device Role / Timing Role: Monitors individual cell voltages and temperatures during 5-A continuous discharge; manages CHG/DSG FETs for safe cutoff. Use Value: Extends cycle life by preventing over-discharge and enabling precision cell balancing before each charge cycle. |
| Battery Backup Units (BBUs) | Industrial Energy Storage Systems |
Use Scenario: 24-V UPS for telecom base stations with 72-hour runtime and remote health telemetry. IC Role / Device Role / Timing Role: Provides coulomb counting and voltage monitoring for runtime prediction; alerts host controller via ALERT pin on UV event. Use Value: Delivers ±10 mV cell voltage accuracy critical for predicting end-of-discharge timing under variable load profiles. | Use Scenario: Modular 48-V energy storage rack with hot-swap capability and distributed thermal monitoring. IC Role / Device Role / Timing Role: Serves as per-module AFE in multi-unit system; communicates pack-level metrics over I²C to central BMS controller. Use Value: Supports scalable architecture with deterministic 250-ms cell voltage measurement interval and 2-s temperature sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery monitor AFE applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ7692000PWR | I²C address 0x08; includes CRC option enabled; same 20-TSSOP package and cell count support. | Suitable for systems requiring CRC-protected I²C communication and default address compatibility. | Select BQ7692000PWR when CRC validation is required for robustness in noisy EMI environments. |
| MAX17521G+T | 3–6 cell support; 16-bit ADC; integrated high-side FET drivers; different pinout and register map. | Designed for higher-reliability industrial systems needing high-side switching and enhanced fault diagnostics. | Choose MAX17521G+T when high-side FET control and extended diagnostic logging are mandatory. |
Compared with BQ7692006PWR, BQ7692000PWR offers CRC-enabled I²C but shares identical protection features and power consumption, while MAX17521G+T adds high-side drive capability at the cost of layout redesign and firmware adaptation.
Availability
BQ7692006PWR is available at Aetrix Electronics and suitable for e-bike battery packs, power tool battery management, and industrial energy storage systems requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for BQ7692006PWR 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 experience in battery management IC design.
The BQ769x0 product line targets high-power portable and industrial battery systems, delivering integrated protection, precision monitoring, and ultra-low-power operation for next-generation e-mobility and energy storage applications.
FAQ
What is the I²C address of the BQ7692006PWR and is it configurable?
The BQ7692006PWR has a factory-programmed fixed 7-bit I²C address of 0x18. This address is permanently stored in on-chip memory and cannot be modified in the field. Unlike some variants such as BQ7692000PWR (0x08), the BQ7692006PWR does not support address reconfiguration or CRC option activation, simplifying system integration where address collision avoidance is critical.
Does the BQ7692006PWR support thermistor-based temperature monitoring?
Yes, the BQ7692006PWR supports thermistor-based temperature monitoring via its TS1 pin, which provides an internal 10-kΩ pull-up to VSS for direct connection to a 103AT thermistor. The device measures thermistor voltage using its 14-bit ADC and converts readings into temperature values with calibrated accuracy across –40°C to +85°C. No external biasing circuitry is required.
What protection functions are implemented in hardware on the BQ7692006PWR?
The BQ7692006PWR implements four hardware-based protections: overvoltage (OV), undervoltage (UV), overcurrent in discharge (OCD), and short-circuit in discharge (SCD). Each uses dedicated comparators and timers with user-programmable thresholds and delays. These functions operate autonomously without host MCU intervention, ensuring sub-millisecond response times and fail-safe behavior during critical fault conditions.
Can the BQ7692006PWR balance more than one cell simultaneously?
Yes, the BQ7692006PWR supports simultaneous passive cell balancing across all monitored cells (up to five), using integrated 70-mA balancing FETs per cell. Balancing is controlled via register writes and occurs during relaxed measurement intervals (12.5 ms relaxation time before voltage readback). This enables efficient top-balancing without external FETs or timing controllers.
What is the maximum operating voltage for the BQ7692006PWR's BAT pin?
The absolute maximum rating for the BAT pin of the BQ7692006PWR is 36 V, consistent with its 3–5 series cell support (nominal 18 V). The recommended operating range is 6 V to 25 V. Exceeding 36 V risks permanent damage. For higher-voltage applications (e.g., 10S+), TI recommends the BQ76930 or BQ76940 families instead.
BQ7692006PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Battery Monitor
- Battery Chemistry:
- Multi-Chemistry
- Number of Cells:
- 3 ~ 5
- Fault Protection:
- Over Current, Over/Under Voltage, Short Circuit
- Interface:
- I2C
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
BQ7692006PWR FAQ
1.How can I place an order for BQ7692006PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ7692006PWR 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 BQ7692006PWR reliable?
The price and inventory of BQ7692006PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ7692006PWR is usually 5 days.
3.What payment methods are accepted for BQ7692006PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ7692006PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ7692006PWR?
BQ7692006PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ7692006PWR 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 BQ7692006PWR?
For technical support, including BQ7692006PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ7692006PWR requirements.
6.How does Aetrix verify that BQ7692006PWR is sourced from the original manufacturer or authorized distributors?
All BQ7692006PWR 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 BQ7692006PWR meets industry standards.
7.What is the process for return or replacement of BQ7692006PWR?
All BQ7692006PWR units undergo pre-shipment inspection (PSI). If there is an issue with BQ7692006PWR, 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 BQ7692006PWR part is unused and in its original packaging.
Return procedure for BQ7692006PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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