My Inquiry
My Account
Texas Instruments BQ7695201PFBR
- Part No.:
- BQ7695201PFBR
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 48-TQFP
- Datasheet:
-
BQ7695201PFBR.pdf
- Description:
- 3-S TO 16-S HIGH-ACCURACY BATTER
- Quantity:
- Payment:
- Shipping:
Inventory:208
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BQ7695201PFBR from Texas Instruments is a high-accuracy, 3- to 16-series Li-ion/LiFePO₄ battery monitor and protector IC with integrated high-side charge-pump NFET drivers, dual programmable LDOs (REG1/REG2), and simultaneous voltage/current ADC sampling. It delivers <10 mV typical cell voltage accuracy, <1 µV typical input offset for coulomb counting, and supports autonomous or host-controlled cell balancing in industrial battery packs up to 80 V.
For engineers reviewing the BQ7695201PFBR datasheet, BQ7695201PFBR pinout, BQ7695201PFBR application, or BQ7695201PFBR equivalent, key selection criteria include its SPI interface with CRC enabled, 48-pin TQFP (PFB) package, 9–10 µA DEEPSLEEP current, 85 V high-voltage tolerance on cell inputs, and support for up to nine external thermistors in safety-critical energy storage systems.
Technical Context
The BQ7695201PFBR implements two independent ADCs-one for high-accuracy cell voltage measurement (<10 mV error) and another for ±200-mV current-sense range with <1 µV offset-enabling synchronized sampling. Its protection subsystem includes configurable overvoltage, undervoltage, overtemperature, and overcurrent detection with internal diagnostics.
It integrates a high-side charge pump for NFET gate drive, autonomous recovery logic, secondary chemical fuse drive, and OTP memory programmable during production. Power management includes NORMAL (286 µA), SLEEP (24–41 µA), DEEPSLEEP (9–10 µA), and SHUTDOWN (1 µA) modes, optimized for long-life battery pack operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cell Count Range | 3-series to 16-series Li-ion/LiFePO₄ stacks - supports scalable battery pack designs from 12 V to 80 V nominal. |
| Cell Voltage Accuracy | <10 mV (typical) - enables precise state-of-charge estimation and tight voltage-based protection thresholds. |
| Coulomb Counter Offset | <1 µV (typical) - minimizes integration drift in current measurement for accurate capacity tracking over time. |
| Current Sense Range | ±200 mV across sense resistor - accommodates wide dynamic range of charge/discharge currents without external amplification. |
| Supply Current (DEEPSLEEP) | 9–10 µA - extends shelf life and standby runtime in always-on battery backup and portable tools. |
| Interface | SPI with CRC enabled - provides robust, noise-immune communication for host-controlled BMS firmware updates and real-time telemetry. |
| High-Voltage Tolerance | 85 V on VC0–VC16, PACK, LD - eliminates need for external level-shifting in high-cell-count industrial packs. |
| Operating Temperature | –40°C to +85°C - validated for deployment in e-bikes, cordless power tools, and outdoor energy storage units. |
Pinout & Package
48-pin TQFP (PFB) package, 7 mm × 7 mm body size, exposed thermal pad (not electrically connected). Pin functions are fully defined per TI SLUSE13B datasheet Section 6.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VC0–VC16 | Cell voltage sense inputs | Direct analog inputs for 16-cell stack monitoring; each serves as balance current return path for adjacent cell. |
| SRP / SRN | Coulomb counter differential inputs | Accept ±200-mV sense resistor voltage for high-precision current integration with sub-µV offset. |
| CHG / DSG | NMOS FET drive outputs | Drive external discharge/charge MOSFETs; support fast fault response and configurable delay timing. |
| PCHG / PDSG | PFET precharge/predischarge control | Enable safe inrush current limiting and load pre-discharge before main FET activation. |
| REG1 / REG2 | Programmable LDO outputs | Configurable 1.8 V / 2.5 V / 3.0 V / 3.3 V / 5.0 V outputs for powering external MCU, sensors, or transceivers. |
| TS1–TS3 | Thermistor/ADC inputs | Support up to nine external NTC thermistors via multiplexing; TS2 enables wake-from-SHUTDOWN on temperature event. |
| SPI_MOSI / MISO / SCLK / CS | SPI interface pins | HDQ, SDA, SCL, CFETOFF, DFETOFF, DCHG, DDSG, RST_SHUT serve as multifunction I/O for SPI protocol implementation. |
| FUSE | Secondary chemical fuse drive | Drives external fuse with controlled current ramp to prevent false triggering while ensuring reliable overcurrent shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous cell balancing | Reduces manual host intervention; balances cells using internal timers and voltage thresholds without MCU polling. |
| Integrated high-side charge pump | Eliminates need for external bootstrap circuitry when driving high-side NFETs in 16S configurations. |
| Dual programmable LDOs (REG1/REG2) | Power external peripherals at user-selected voltages; reduces BOM count and simplifies power tree design. |
| OTP memory programmable on production line | Enables field-specific configuration (e.g., protection thresholds, LDO settings) without post-manufacture programming infrastructure. |
| Tolerant of random cell attach sequence | Prevents damage or misconfiguration during automated battery pack assembly - improves manufacturing yield and reliability. |
| Two independent ADCs with synchronized sampling | Ensures time-aligned voltage and current data for accurate power calculation and impedance tracking in dynamic loads. |
Applications
| Battery Backup Unit (BBU) | E-bike & E-scooter |
|---|---|
Use Scenario: Uninterruptible power supply for telecom base stations and edge servers requiring >72-hour hold-up time. IC Role / Device Role / Timing Role: Primary battery monitor and protector managing 12–16S LiFePO₄ stacks, executing autonomous overvoltage/undervoltage cutoff and coulomb counting. Use Value: Sub-10 mV voltage accuracy ensures precise end-of-discharge detection, extending usable capacity by ~2.3% versus ±25 mV competitors. | Use Scenario: High-power traction battery pack with regenerative braking and rapid charge cycles. IC Role / Device Role / Timing Role: Real-time cell voltage balancing controller and thermal supervisor using TS1–TS3 inputs for motor/controller temperature feedback. Use Value: 9–10 µA DEEPSLEEP current preserves battery charge during parking; SPI CRC prevents corrupted configuration during vibration-induced signal noise. |
| Cordless Power Tools | Non-military Drones |
Use Scenario: 10–14S Li-ion pack subjected to high-current bursts (>30 A) and mechanical shock. IC Role / Device Role / Timing Role: Fast-response protector triggering CHG/DSG FETs within 150 µs of overcurrent detection; monitors cell imbalance during active use. Use Value: ±200-mV current sense range captures peak tool startup currents without saturation; high-voltage tolerance avoids clamping diodes on VC inputs. | Use Scenario: Compact 6–12S LiPo battery with strict weight and thermal constraints for flight control autonomy. IC Role / Device Role / Timing Role: Low-power telemetry node providing voltage, temperature, and SOC data via SPI to flight controller during all operational modes. Use Value: 1 µA SHUTDOWN mode enables multi-week storage without parasitic drain; OTP-programmed LDOs power IMU at 3.3 V without external regulator. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery monitor and protector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ7695202PFBR | I²C interface with CRC enabled; REG1 LDO defaults to 3.3 V (enabled); BQ7695201PFBR uses SPI and disables REG1 by default. | Preferred where host MCU has limited SPI peripherals but robust I²C bus with pull-up capability and clock stretching support. | Select BQ7695202PFBR only if system architecture mandates I²C and requires factory-set 3.3 V LDO output without runtime reconfiguration. |
| BQ7694201PFBT | 10S max cell count; no integrated charge pump; lower quiescent current (6 µA DEEPSLEEP); SPI-only, no HDQ/I²C options. | Suitable for cost-sensitive, lower-voltage (<42 V) applications like portable medical devices or consumer drones where 16S scalability is unnecessary. | Choose BQ7694201PFBT only when 10S limit is acceptable and high-side NFET drive is handled externally - not a drop-in replacement for BQ7695201PFBR. |
Compared with BQ7695202PFBR and BQ7694201PFBT, the BQ7695201PFBR uniquely combines SPI+CRС integrity, 16S scalability, integrated high-side charge pump, and production-line OTP programming - making it optimal for industrial-grade, high-voltage battery packs requiring field-configurable protection and minimal external components.
Availability
BQ7695201PFBR is available at Aetrix Electronics and suitable for battery backup units, e-mobility systems, and cordless power tools requiring stable component supply, long-term lifecycle support, and automotive-grade reliability validation.
Supply support for BQ7695201PFBR 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 over 50 years of innovation in precision analog ICs.
The BQ76952 family targets high-accuracy, high-reliability battery management for industrial and transportation applications - designed to replace discrete protection circuits with integrated, programmable, and production-ready solutions for 3S–16S Li-based packs.
FAQ
What communication interface does the BQ7695201PFBR support?
The BQ7695201PFBR supports SPI with CRC enabled as its primary interface. Unlike other variants in the BQ76952 family (e.g., BQ7695202PFBR with I²C), this part is configured at manufacture for SPI-only operation. The SCL, SDA, and HDQ pins are repurposed as SPI_SCLK, SPI_MISO, and SPI_MOSI respectively, enabling deterministic, noise-resistant communication in electric vehicle and power tool environments.
Does the BQ7695201PFBR include an integrated charge pump?
Yes, the BQ7695201PFBR includes an integrated high-side charge pump specifically designed to drive NFET protection FETs in 16-series battery configurations. This eliminates the need for external bootstrap capacitors or dedicated charge-pump ICs. The charge pump operates autonomously during FET switching events and supports optional autonomous recovery after fault conditions, directly enhancing system safety and reducing bill-of-materials complexity.
What is the operating voltage range for cell sensing on the BQ7695201PFBR?
The BQ7695201PFBR supports up to 85 V absolute maximum on all VC0–VC16 pins, enabling direct connection to 16S Li-ion (≤67.2 V) and 16S LiFePO₄ (≤57.6 V) battery stacks without external voltage dividers. Per TI SLUSE13B Section 7.1, VC0 accepts 0–6 V, while VC1–VC4 tolerate up to VVC(x−1)+5.5 V, and VC5–VC16 tolerate up to VVC(x−1)+5.5 V or VSS+80 V - ensuring robust operation across full pack voltage transients.
How many external thermistors can the BQ7695201PFBR monitor simultaneously?
The BQ7695201PFBR supports up to nine external thermistors through its three dedicated TS1–TS3 pins combined with five multifunction pins (ALERT, CFETOFF, DFETOFF, DCHG, DDSG) configurable as thermistor inputs. All nine channels share the same internal ADC and reference, with sequential scanning managed by the device's built-in sequencer - enabling comprehensive thermal profiling of large-format battery packs without external multiplexers or additional ADCs.
What power modes does the BQ7695201PFBR offer, and what are their typical current draws?
The BQ7695201PFBR offers four power modes: NORMAL (286 µA), multiple SLEEP options (24–41 µA), multiple DEEPSLEEP options (9–10 µA), and SHUTDOWN (1 µA). These modes are selected via register writes or hardware pins (e.g., RST_SHUT), and each disables specific subsystems - such as ADC sampling, LDOs, or communication peripherals - to optimize energy use during idle, storage, or emergency shutdown states in battery-powered equipment.
BQ7695201PFBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-TQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Multi-Function Controller
- Battery Chemistry:
- LiFePO4/Li-ion
- Number of Cells:
- 3 ~ 16
- Fault Protection:
- Over Temperature
- Interface:
- SPI
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TQFP (7x7)
BQ7695201PFBR FAQ
1.How can I place an order for BQ7695201PFBR through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ7695201PFBR 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 BQ7695201PFBR reliable?
The price and inventory of BQ7695201PFBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ7695201PFBR is usually 5 days.
3.What payment methods are accepted for BQ7695201PFBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ7695201PFBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ7695201PFBR?
BQ7695201PFBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ7695201PFBR 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 BQ7695201PFBR?
For technical support, including BQ7695201PFBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ7695201PFBR requirements.
6.How does Aetrix verify that BQ7695201PFBR is sourced from the original manufacturer or authorized distributors?
All BQ7695201PFBR 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 BQ7695201PFBR meets industry standards.
7.What is the process for return or replacement of BQ7695201PFBR?
All BQ7695201PFBR units undergo pre-shipment inspection (PSI). If there is an issue with BQ7695201PFBR, 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 BQ7695201PFBR part is unused and in its original packaging.
Return procedure for BQ7695201PFBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BQ7695201PFBR Tags
-
BQ29700DSER
Texas Instruments
-
S-8241ABKMC-GBKT2G
ABLIC Inc.
-
S-8241ABPMC-GBPT2G
ABLIC Inc.
-
BQ27427YZFR
Texas Instruments
-
BQ27426YZFR
Texas Instruments
-
STC3117IJT
STMicroelectronics
-
STC3115IJT
STMicroelectronics
-
BQ76925RGER
Texas Instruments
-
NPM1100-QDAA-R
Nordic Semiconductor ASA
-
BQ27441DRZR-G1A
Texas Instruments
-
STC3115AIQT
STMicroelectronics
-
S-8252AAL-M6T1U
ABLIC Inc.
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
