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Texas Instruments BQ7693001DBT
- Part No.:
- BQ7693001DBT
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 30-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
BQ7693001DBT.pdf
- Description:
- IC BATT MON MULTI 6-10C 30TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:179
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Product details
Overview
BQ7693001DBT 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 nominal. Used in e-scooters and power tools requiring precise cell-level monitoring and autonomous fault response.
For engineers reviewing the BQ7693001DBT datasheet, BQ7693001DBT pinout, BQ7693001DBT application, or BQ7693001DBT equivalent, this page provides verified technical context, real-world design meaning of specifications, validated pin functions, confirmed alternative parts with documented differences, and supply-chain-ready availability details - all grounded in TI's SLUSBK2I datasheet and official package documentation.
Technical Context
The BQ7693001DBT implements a dedicated analog front-end architecture with independent 14-bit ADCs for cell voltage (VC0–VC10), pack current (SRP/SRN), die temperature, and two external thermistors (TS1/TS2). Its protection logic executes in hardware without host intervention, supporting configurable OV/UV trip points (16-LSB steps), OCD/SCD thresholds (8–100 mV range), and programmable delay timers (1–8 s for OV/UV, 8–1280 ms for OCD).
It operates in multiple power modes: NORMAL (ADC/CC on/off combinations), SHIP (0.6–1.8 µA), and BOOT-initiated startup. The device uses a segmented voltage domain structure - VC5X serves as reference for cells 6–10 - enabling accurate differential sensing across up to 10 series cells while maintaining <±25 mV total error over –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cell Count Support | 6–10 series Li-ion/LiFePO₄ cells; enables 24–36 V nominal battery packs with segmented sensing (VC0–VC5 + VC5X-referenced VC6–VC10). |
| Cell Voltage Accuracy | ±15 mV at 25°C (3.2–4.6 V range); ensures reliable OV/UV detection within 1 LSB step (16 mV) without calibration. |
| Current Sensing | 16-bit coulomb counter with ±200 mV input range, ±40 LSB INL, and 8.44 µV LSB; supports precision capacity tracking using external sense resistor. |
| Protection Response | Hardware-triggered OCD (8–100 mV threshold), SCD (22–200 mV), OV/UV (configurable via register), with fixed delay options (1/2/4/8 s) and no firmware dependency. |
| Power Consumption | 130–195 µA in full NORMAL mode (ADC + CC active); drops to 0.6–1.8 µA in SHIP mode for long-term storage. |
| I²C Interface | Standard-mode compatible (up to 100 kHz), CRC optional; address preconfigured to 0x08; enables host read/write of all registers and status flags. |
| Thermistor Support | Two independent 103AT thermistor inputs (TS1 referenced to VSS, TS2 referenced to VC5X); includes internal 10 kΩ pull-up and bias control. |
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, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VC0–VC5 | Cell voltage sense inputs (low-side to mid-stack) | Direct connection to negative terminal of Cell 1 (VC0) and positive terminals of Cells 1–5 (VC1–VC5); referenced to VSS. |
| VC6–VC10 | Cell voltage sense inputs (high-side stack) | Connected to positive terminals of Cells 6–10; referenced to VC5X (not VSS), enabling differential measurement across 10-series configuration. |
| VC5X | Reference node for upper cell stack | Serves as local ground for TS2 and VC6–VC10; must be tied to Cell 5's negative terminal (VC5B) per layout guidelines. |
| SRP / SRN | Current sense differential inputs | Measure voltage drop across external sense resistor (RSNS); SRP connects near battery negative, SRN near load/FET source. |
| CHG / DSG | Low-side N-channel FET gate drivers | Drive external MOSFET gates directly; output swing tracks REGSRC (10–14 V typical), supporting >1 A continuous drive capability. |
| TS1 / TS2 | Thermistor interface pins | TS1 referenced to VSS; TS2 referenced to VC5X; each requires 10 kΩ pull-down if unused to prevent floating input. |
| REGSRC / REGOUT | Integrated LDO power path | REGSRC accepts 6–25 V input; REGOUT delivers regulated 2.5 V (fixed) to external circuitry or microcontroller I/O rails. |
| ALERT | Open-drain interrupt and override | Asserts low on protection event or register flag; also accepts external override signal to clear latched faults without host reset. |
| SCL / SDA | I²C serial interface | Standard bidirectional bus lines; support CRC checksum option; require external 4.7 kΩ pull-ups to REGOUT or other 3.3 V rail. |
| BAT | Main battery high-side input | Connects to top of battery stack (Cell 10+); withstands absolute max 108 V; supplies internal bias for high-voltage domains. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated cell balancing | Internal 5 mA per-cell balancing FETs eliminate need for external balancing circuits; reduces BOM count and PCB area in 6–10S packs. |
| Random cell connection tolerance | Supports non-sequential cell wiring (e.g., VC3 connected before VC2); prevents misconfiguration errors during assembly or field repair. |
| No EEPROM programming required | All configuration stored in volatile registers; simplifies manufacturing test flow and eliminates programming step - device operates immediately after power-on. |
| Dual thermistor support with independent references | TS1 (VSS-referenced) monitors pack ambient or Cell 1–5; TS2 (VC5X-referenced) monitors upper stack (Cells 6–10); avoids single-point thermal failure. |
| SHIP mode ultra-low power state | 0.6–1.8 µA quiescent current with only boot-detection circuit active; enables multi-year shelf life for battery modules in storage. |
Applications
| e-Scooter Battery Packs | Power Tool Battery Packs |
|---|---|
Use Scenario: 36 V, 10S2P Li-ion pack powering 350–500 W hub motor with regenerative braking feedback. IC Role / Device Role / Timing Role: Primary AFE performing real-time cell voltage monitoring, pack current integration, dual-zone thermal supervision, and hardware-triggered discharge cutoff during overcurrent events. Use Value: Enables safe operation at 30 A continuous discharge with <100 µs SCD response, preventing MOSFET avalanche failure during stall conditions. |
Use Scenario: 36 V, 10S1P LiFePO₄ pack for cordless drill delivering 20 A peak pulses with rapid duty cycling. IC Role / Device Role / Timing Role: Standalone protector executing OV/UV checks every 250 ms, balancing Cells 1–10 during idle, and asserting ALERT to MCU on thermal excursion (>65°C). Use Value: Eliminates need for external supervisor IC; reduces system latency by handling OCD/SCD in <1.3 ms without host CPU involvement. |
| Energy Storage System (ESS) Modules | Industrial UPS Battery Strings |
Use Scenario: Rack-mounted 36 V, 10S4P Li-ion module used in residential solar ESS with CAN-connected BMS master. IC Role / Device Role / Timing Role: Local cell-level monitor feeding voltage/current/temperature data via I²C to central controller; manages passive balancing autonomously. Use Value: Provides ±25 mV cell voltage accuracy over –40°C to +85°C, ensuring consistent state-of-charge estimation across seasonal temperature swings. |
Use Scenario: 36 V backup string in 19-inch telecom UPS with hot-swap capability and remote fault reporting. IC Role / Device Role / Timing Role: Fault-isolation AFE detecting UV on individual cells during brownout, latching DSG driver, and signaling ALERT to SNMP agent. Use Value: Guarantees fail-safe shutdown within 1 s of undervoltage detection - meeting UL 1973 short-circuit safety requirements for stationary storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery monitor AFE applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ7693000DBT | No CRC support on I²C; identical pinout, timing, and protection features. | Suitable for cost-sensitive designs where bus integrity verification is handled externally or omitted. | Select BQ7693000DBT when CRC is unnecessary and BOM cost reduction is prioritized over I²C packet validation. |
| BQ7694001DBT | Supports 9–15S stacks (vs. 6–10S); larger 44-TSSOP package; higher absolute max voltage (108 V); same 2.5 V LDO and thermistor architecture. | Required for 48 V systems (e.g., e-bikes, industrial robots) needing >10S monitoring without daisy-chaining. | Choose BQ7694001DBT only when scaling beyond 10 series cells - not a drop-in replacement due to pin count, layout, and voltage domain changes. |
Compared with BQ7693001DBT, BQ7693000DBT removes I²C CRC but retains identical protection timing and accuracy, while BQ7694001DBT extends cell count and voltage range at the cost of larger footprint and non-interchangeable pinout - making both alternatives functionally adjacent but not pin-compatible replacements.
Availability
BQ7693001DBT is available at Aetrix Electronics and suitable for e-scooter battery management, power tool pack protection, and industrial UPS modules requiring stable component supply, long-lifecycle assurance, and TI-qualified automotive-grade reliability.
Supply support for BQ7693001DBT 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 family was designed specifically for high-power, multi-cell Li-ion and LiFePO₄ battery packs in light electric vehicles and industrial energy storage - emphasizing hardware autonomy, ultra-low power states, and simplified system integration without EEPROM dependency.
FAQ
What is the maximum number of series cells supported by the BQ7693001DBT?
The BQ7693001DBT supports up to 10 series-connected cells in a single-package configuration. Its segmented sensing architecture uses VC0–VC5 referenced to VSS and VC6–VC10 referenced to VC5X, enabling accurate voltage measurement across the full 10-cell stack without external multiplexers or daisy-chaining. This matches the 6–10S specification confirmed in TI's SLUSBK2I datasheet Section 5 and Table 6-2.
Does the BQ7693001DBT include an integrated voltage regulator?
Yes, the BQ7693001DBT integrates a 2.5 V output LDO regulator. REGSRC accepts 6–25 V input, and REGOUT delivers a fixed 2.5 V supply capable of driving external logic or MCU I/O rails. This eliminates the need for an external LDO in many designs, as verified in the "Additional features" list (Section 1) and Electrical Characteristics table (Section 7.5) of the official datasheet.
How does the BQ7693001DBT handle overcurrent protection?
The BQ7693001DBT implements hardware-based Overcurrent in Discharge (OCD) protection with user-configurable thresholds from 8 mV to 100 mV across the SRP–SRN sense resistor. It offers selectable delay timers (8–1280 ms) and triggers immediate DSG FET shutdown without host intervention. This behavior is documented in Sections 1 (Features), 7.5 (Electrical Characteristics), and 8.3 (Feature Description) of TI's SLUSBK2I datasheet.
Is the BQ7693001DBT pin-compatible with other devices in the BQ769x0 family?
No, the BQ7693001DBT is not pin-compatible with BQ76920 or BQ76940 variants. It uses a 30-pin TSSOP (DBT) package, whereas BQ76920 uses 20-pin TSSOP (PW) and BQ76940 uses 44-pin TSSOP (DBT). Pin counts, layouts, and voltage domain references (e.g., VC5X presence) differ fundamentally - confirmed in Section 6 Pin Configuration and Table 5 Device Comparison of the datasheet.
What thermistor types are supported by the BQ7693001DBT?
The BQ7693001DBT supports two 103AT NTC thermistors - one referenced to VSS (TS1) and one referenced to VC5X (TS2) - as explicitly stated in Section 1 Features and Table 6-2 Pin Functions. Each thermistor input includes internal 10 kΩ pull-up biasing, and the device measures resistance via voltage division, enabling temperature calculation across –40°C to +85°C per TI's application guidance.
BQ7693001DBT 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
BQ7693001DBT FAQ
1.How can I place an order for BQ7693001DBT through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ7693001DBT 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 BQ7693001DBT reliable?
The price and inventory of BQ7693001DBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ7693001DBT is usually 5 days.
3.What payment methods are accepted for BQ7693001DBT?
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Note: Certain payment methods may incur a processing fee.
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BQ7693001DBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ7693001DBT 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 BQ7693001DBT?
For technical support, including BQ7693001DBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ7693001DBT requirements.
6.How does Aetrix verify that BQ7693001DBT is sourced from the original manufacturer or authorized distributors?
All BQ7693001DBT 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 BQ7693001DBT meets industry standards.
7.What is the process for return or replacement of BQ7693001DBT?
All BQ7693001DBT units undergo pre-shipment inspection (PSI). If there is an issue with BQ7693001DBT, 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 BQ7693001DBT part is unused and in its original packaging.
Return procedure for BQ7693001DBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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