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Texas Instruments BQ7693007DBT
- Part No.:
- BQ7693007DBT
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 30-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
BQ7693007DBT.pdf
- Description:
- IC BATT MON MULTI 6-10C 30TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,937
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Product details
Overview
BQ7693007DBT from Texas Instruments is a 6- to 10-series Li-ion and LiFePO₄ battery monitor AFE with integrated cell balancing FETs, low-side charge/discharge FET drivers, and dual thermistor support. It delivers ±15 mV cell voltage accuracy (25°C), 14-bit ADC resolution, and hardware-based overvoltage/undervoltage/overcurrent protection for high-power battery packs up to 36 V. It serves as the core analog front-end in e-bike and power tool battery management systems.
For engineers reviewing the BQ7693007DBT datasheet, BQ7693007DBT pinout, BQ7693007DBT application, or BQ7693007DBT equivalent, key selection criteria include its 30-pin TSSOP package, I²C interface with CRC option, 2.5-V LDO output, 5 mA per-cell balancing current, and random cell connection tolerance - all validated for industrial-grade operation from –40°C to +85°C.
Technical Context
The BQ7693007DBT implements a dedicated analog front-end architecture with independent 14-bit ADCs for cell voltage (2–5 V range) and temperature sensing, plus a 16-bit coulomb counter for pack current measurement across ±200 mV. Its protection logic executes fully in hardware - OV/UV thresholds are programmable in 16-LSB steps, OCD/SCD detection uses configurable delay timers and sense-resistor-referenced voltage windows, and fault reporting occurs via an open-drain ALERT pin.
Power management includes dynamic sub-block enabling, ultra-low-power SHIP mode (≤1.8 µA), and dual-regulator support: REGSRC accepts 6–25 V input to generate a stable 2.5-V REGOUT for host MCU supply. The device supports direct connection of up to three 103AT thermistors with internal biasing and decimation timing controlled by register settings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cell Count Range | 6 to 10 series Li-ion/LiFePO₄ cells - supports nominal 36-V battery packs with segmented voltage monitoring (VC0–VC10, VC5B) |
| Cell Voltage Accuracy | ±15 mV at 25°C (3.2–4.6 V range) - enables precise state-of-charge estimation without external calibration |
| ADC Resolution | 14-bit for cell voltage & die temperature, 16-bit for pack current - provides 382 µV LSB and 8.44 µV CC LSB for high-resolution monitoring |
| Cell Balancing Current | 5 mA per cell - sufficient for passive balancing in mid-power applications like e-scooters and cordless tools |
| I²C Interface | Standard-mode compatible with optional CRC - simplifies host communication while ensuring data integrity in noisy EMI environments |
| Operating Temperature | –40°C to +85°C - qualified for industrial and light electric vehicle battery pack environments |
| Supply Current (Normal Mode) | 130–195 µA with ADC and coulomb counter active - balances measurement fidelity with ultra-low quiescent power |
Pinout & Package
Package: 30-pin TSSOP (DBT), 7.80 mm × 4.40 mm × 1.20 mm body size, lead pitch 0.65 mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DSG | Discharge FET driver output | Drives external N-channel MOSFET gate to disconnect load during overcurrent or fault conditions |
| CHG | Charge FET driver output | Drives external N-channel MOSFET gate to block charging path during overvoltage or cell imbalance |
| VC0–VC10 | Cell voltage sense inputs | Direct connections to cell stack nodes; VC0 = bottom cell negative, VC10 = top cell positive for 10S configuration |
| VC5B | 6th cell negative reference | Segmented reference point enabling differential sensing across 6–10 cell configurations without rework |
| SRP / SRN | Current sense differential inputs | Accepts ±200 mV differential signal from sense resistor for coulomb counting and OCD/SCD detection |
| TS1 / TS2 | Thermistor inputs | Support two independent 103AT thermistors with internal 10 kΩ pull-up; TS2 referenced to VC5X for isolation |
| REGSRC / REGOUT | LDO input and regulated output | REGSRC accepts 6–25 V battery input; REGOUT delivers stable 2.5 V @ up to 10 mA for MCU or peripheral supply |
| ALERT | Open-drain fault indicator | Asserts low on OV/UV/OCD/SCD/fault events; doubles as boot override input when pulled high |
| SCL / SDA | I²C bus interface | Standard bidirectional I²C pins with internal weak pull-ups; support CRC for error-checked register access |
| BAT | Main battery terminal | Connects to top of battery stack; rated for up to 36 V absolute max (BAT–VSS) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated cell balancing FETs | Enables passive balancing without external components - reduces BOM count and layout area for 6–10S packs |
| Hardware-based protection engine | OV/UV/OCD/SCD triggers execute independently of host MCU - ensures fail-safe response even during firmware hang or reset |
| Random cell connection tolerance | Eliminates strict node-order wiring requirements - simplifies assembly and improves manufacturing yield in high-volume battery packs |
| No EEPROM programming required | Factory-configured I²C address (0x08), LDO voltage (2.5 V), and CRC enablement - ready-to-use out of box with zero configuration overhead |
| SHIP mode ultra-low power | 0.6–1.8 µA shutdown current - extends shelf life and minimizes self-discharge in stored battery packs |
Applications
| e-Bikes & Pedelecs | Power Tools |
|---|---|
Use Scenario: 36-V, 10S Li-ion battery pack powering mid-drive motor and display unit with real-time SoC and thermal monitoring. IC Role / Device Role / Timing Role: Primary AFE performing cell voltage sampling every 250 ms, coulomb counting, and hardware-triggered discharge cutoff during SCD events. Use Value: Enables accurate range estimation and prevents thermal runaway via dual thermistor inputs and ±15 mV cell voltage accuracy. | Use Scenario: Cordless drill/driver battery with fast-charge capability, high-current discharge pulses (>30 A), and cycle-life optimization. IC Role / Device Role / Timing Role: Monitors individual cell voltages during charge termination and detects short-circuit faults within 35–520 µs using hardware SCD logic. Use Value: Supports safe 3C+ discharge rates and extends pack lifetime through per-cell balancing and UV/OV protection with 1 s–8 s programmable delays. |
| Battery Backup Units (BBUs) | Industrial Energy Storage |
Use Scenario: Rack-mounted 48-V UPS module requiring seamless switchover, runtime prediction, and cold-temperature operation down to –20°C. IC Role / Device Role / Timing Role: Measures die temperature and two external thermistors to derate charge/discharge current below –10°C; calculates pack voltage every 250 ms. Use Value: Maintains system uptime by preventing lithium plating at low temperatures and enabling precise end-of-discharge detection at 2.5 V/cell. | Use Scenario: Stationary 36-V LiFePO₄ energy storage system for solar microgrids with 2000+ cycle life requirement and remote diagnostics. IC Role / Device Role / Timing Role: Provides long-term cell voltage drift compensation via factory-calibrated ADC and supports firmware updates over I²C with CRC-protected registers. Use Value: Reduces maintenance cost through reliable state-of-health tracking and eliminates need for field recalibration due to ±35 mV accuracy over –40°C to +85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery monitor AFE applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ7693003DBT | I²C address 0x08, 2.5-V LDO, CRC enabled - identical pinout and electrical specs except factory-programmed interface options | Same 6–10S monitoring function; differs only in default I²C configuration and CRC setting | Select BQ7693003DBT if CRC validation is required for secure host communication in safety-critical firmware updates |
| BQ7694007DBT | Supports 9–15S cells, 44-pin TSSOP, higher voltage rating (up to 48 V), same 5 mA balancing current and 14-bit ADC | Targets larger packs (e.g., 48-V e-motorcycles); requires PCB redesign due to different pin count and layout | Choose BQ7694007DBT only when scaling beyond 10S - not drop-in; verify thermal design for 44-pin package's lower RθJA (70.1°C/W) |
Compared with BQ7693007DBT, BQ7693003DBT offers identical functionality with CRC pre-enabled for enhanced data integrity, while BQ7694007DBT extends cell count support to 15S but demands mechanical and thermal redesign - making BQ7693007DBT optimal for cost-sensitive 6–10S industrial and LEV applications.
Availability
BQ7693007DBT is available at Aetrix Electronics and suitable for light electric vehicles, cordless power tools, and industrial battery backup units requiring stable component supply, long-lifecycle support, and automotive-grade reliability.
Supply support for BQ7693007DBT 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 ICs and high-reliability power solutions.
The BQ769x0 product line was designed specifically for robust, high-voltage battery pack monitoring in light electric vehicles, power tools, and energy storage systems - emphasizing hardware-based protection, low-power operation, and factory-calibrated precision without EEPROM dependency.
FAQ
What is the factory-configured I²C address and LDO voltage for BQ7693007DBT?
The BQ7693007DBT ships with a fixed 7-bit I²C address of 0x08 and a 2.5-V output LDO (REGOUT). These settings are permanently stored in factory-programmed memory and cannot be modified in the field. This eliminates configuration overhead during system integration and ensures deterministic communication startup without software initialization sequences.
Does BQ7693007DBT support thermistor-based temperature monitoring, and how many channels are available?
Yes, BQ7693007DBT supports two independent thermistor inputs (TS1 and TS2) optimized for 103AT NTC thermistors. TS1 references to VSS, while TS2 references to VC5X - enabling isolated thermal sensing across different voltage domains in multi-segment battery packs. Internal 10-kΩ pull-up resistors eliminate external bias components, and temperature measurements occur every 2 seconds with 12.5-ms decimation time.
What protection features are implemented in hardware versus firmware for BQ7693007DBT?
BQ7693007DBT implements overvoltage, undervoltage, overcurrent in discharge, and short-circuit in discharge entirely in hardware - with no dependency on host MCU execution. These protections trigger within microseconds to milliseconds and assert the ALERT pin directly. Firmware retains control only over non-critical functions like balancing scheduling, register readouts, and status logging - ensuring fail-safe operation during MCU failure or brownout.
Can BQ7693007DBT be used in 12S battery configurations?
No, BQ7693007DBT is specified for 6- to 10-series cell configurations only. Its pinout (VC0–VC10, VC5B) and internal voltage domain segmentation (BAT–VC5x, VC5x–VSS) are architecturally limited to 10S maximum. Attempting 12S operation exceeds absolute maximum ratings on VCn pins and invalidates protection thresholds. For 12S+ designs, BQ7694007DBT (9–15S) is the appropriate TI alternative.
What is the cell balancing current capability and thermal impact of BQ7693007DBT?
BQ7693007DBT provides 5 mA per-cell balancing current using integrated FETs. At full 10-cell balancing, total dissipation is ≤50 mW - well within the 30-pin TSSOP's 70.1°C/W junction-to-ambient thermal resistance. No external heatsinking is required under continuous operation, and balancing duty cycle can be adjusted via host firmware to further limit average power and temperature rise in compact battery modules.
BQ7693007DBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 30-TFSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Battery Monitor
- Battery Chemistry:
- Multi-Chemistry
- Number of Cells:
- 6 ~ 10
- 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:
- 30-TSSOP
BQ7693007DBT FAQ
1.How can I place an order for BQ7693007DBT through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ7693007DBT 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 BQ7693007DBT reliable?
The price and inventory of BQ7693007DBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ7693007DBT is usually 5 days.
3.What payment methods are accepted for BQ7693007DBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ7693007DBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ7693007DBT?
BQ7693007DBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ7693007DBT 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 BQ7693007DBT?
For technical support, including BQ7693007DBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ7693007DBT requirements.
6.How does Aetrix verify that BQ7693007DBT is sourced from the original manufacturer or authorized distributors?
All BQ7693007DBT 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 BQ7693007DBT meets industry standards.
7.What is the process for return or replacement of BQ7693007DBT?
All BQ7693007DBT units undergo pre-shipment inspection (PSI). If there is an issue with BQ7693007DBT, 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 BQ7693007DBT part is unused and in its original packaging.
Return procedure for BQ7693007DBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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