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Texas Instruments BQ25713BRSNR
- Part No.:
- BQ25713BRSNR
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
BQ25713BRSNR.pdf
- Description:
- IC BAT MON MULT-CHEM 1-4C 32WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,350
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Product details
Overview
BQ25713BRSNR from Texas Instruments is a synchronous I²C-controlled narrow-voltage DC (NVDC) buck-boost battery charge controller for 1s–4s Li-ion/Li-polymer batteries. It delivers ±0.5% charge voltage regulation, supports 3.5–24-V input, enables USB OTG output (3–20.8 V), and integrates system power monitoring compliant with IMVP8/IMVP9 for CPU throttling in ultrabooks and 2-in-1 platforms.
For engineers reviewing the BQ25713BRSNR datasheet, BQ25713BRSNR pinout, BQ25713BRSNR application, or BQ25713BRSNR equivalent, key selection considerations include NVDC power path behavior, PROCHOT profile programmability, Pass Through Mode (PTM) efficiency gain, Vmin Active Protection (VAP) for peak-load support, and WQFN-32 package thermal performance in space-constrained portable designs.
Technical Context
The BQ25713BRSNR implements a four-switch buck-boost topology with automatic mode transition among buck, buck-boost, and boost based on real-time VBUS and battery voltage conditions-no host intervention required. Its integrated ADC monitors input current (IDPM), battery current (IBAT), and system power (PSYS) with ±2% accuracy for each, feeding real-time data to the I²C interface for dynamic thermal and power management.
It features TI's patented Pass Through Mode (PTM) that bypasses the power stage during high-efficiency adapter-to-system delivery, reducing conduction loss and enabling faster battery charging. The device also supports VAP mode: when powered solely by battery, it pre-charges input capacitors to absorb transient system power spikes and prevent VSYS collapse below minimum operating voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5 V to 24 V - supports USB 2.0/3.0/3.1 Type-C and USB PD adapters without external level-shifting. |
| Charge Voltage Accuracy | ±0.5% - ensures precise cell voltage control across temperature, critical for battery longevity and safety compliance. |
| OTG Output Range | 3.0 V to 20.8 V at 8-mV resolution - meets USB PD 3.0 PPS specifications for programmable power supply applications. |
| System Power Monitor | IMVP8/IMVP9-compliant PSYS output - provides proportional current signal for direct CPU PROCHOT assertion during thermal or power events. |
| Switching Frequency | 800 kHz or 1.2 MHz - selectable to optimize efficiency vs. size trade-off using 2.2-µH or 1.0-µH inductors. |
| Package | 32-pin 4 mm × 4 mm WQFN - exposes thermal pad for low RθJB (7.8 °C/W) and reliable operation up to 125°C junction temperature. |
| Safety Certifications | IEC 62368-1 CB certified - validated for end-equipment safety in consumer and industrial portable systems. |
Pinout & Package
Package: 32-pin WQFN (RSN), 4.00 mm × 4.00 mm, exposed thermal pad soldered to PCB ground plane for thermal dissipation (RθJB = 7.8 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBUS (Pin 1) | Input power rail sense | Accepts 3.5–24 V adapter input; triggers CHRG_OK after 50-ms deglitch when >3.5 V. |
| ACP/ACN (Pins 3/2) | Input current sensing differential pair | Measures adapter current with matched leakage (±16 µA mismatch); requires RC filter per Section 10. |
| SRP/SRN (Pins 20/19) | Battery current sensing differential pair | Monitors charge/discharge current with ±12 µA leakage mismatch; supports precharge and fast-charge modes. |
| VSYS (Pin 22) | System voltage regulation node | Regulated output (1.024–19.2 V range); maintains operation even with depleted or absent battery via NVDC path. |
| PROCHOT (Pin 11) | Processor thermal alert output | Open-drain active-low signal compliant with IMVP8/IMVP9; asserts on IDPM, IBAT, or VSYS faults. |
| OTG/VAP (Pin 5) | Mode select control | Hardware-enabled entry into USB OTG (REG0x34[5]=1) or Vmin Active Protection (REG0x34[5]=0) modes. |
| HIDRV1/LODRV1 (Pins 31/29) | Buck-stage gate drivers | Drive external n-channel MOSFETs Q1 (high-side) and Q2 (low-side); BTST1 capacitor required. |
| HIDRV2/LODRV2 (Pins 24/26) | Boost-stage gate drivers | Drive external n-channel MOSFETs Q4 (high-side) and Q3 (low-side); BTST2 capacitor required. |
| SCL/SDA (Pins 13/12) | I²C interface | Standard-mode (100 kHz) or fast-mode (400 kHz) communication; 10-kΩ pullups required. |
| CELL_BATPRESZ (Pin 18) | Battery cell count configuration | Resistor-programmable 1s–4s detection; sets SYSOVP thresholds (5 V / 12 V / 19.5 V) and disables charge on removal. |
Key Features
| Feature | Design Value |
|---|---|
| Narrow Voltage DC (NVDC) Power Path | Enables instant-on from dead battery and seamless battery supplementation during adapter overload-no system brownout. |
| Pass Through Mode (PTM) | Bypasses switching regulators to deliver adapter power directly to VSYS, improving system efficiency by up to 3% and accelerating battery recharge. |
| Vmin Active Protection (VAP) | Pre-charges input decoupling capacitors from battery to absorb transient power spikes-prevents VSYS collapse during CPU turbo bursts. |
| IMVP8/IMVP9-Compliant PROCHOT | Programmable PROCHOT profile with adjustable pulse width (REG0x23[6:3]) and multi-source triggering (IDPM, IBAT, VSYS). |
| USB On-The-Go (OTG) | Generates regulated 3–20.8 V output from battery with 8-mV resolution and 50-mA current step-fully compliant with USB PD 3.0 PPS. |
Applications
| Ultrabook Power Management | Industrial Portable Test Equipment |
|---|---|
Use Scenario: Dual-input (USB-C PD + barrel jack) laptop platform requiring hot-swappable power sources and battery-backed runtime. IC Role / Device Role / Timing Role: Primary NVDC buck-boost charge controller managing adapter/battery arbitration, system voltage regulation, and PROCHOT-driven CPU throttling. Use Value: Enables instant-on from 0% battery, prevents system crash under peak CPU load via VAP, and extends runtime through PTM efficiency gains. | Use Scenario: Handheld oscilloscope or spectrum analyzer with 2s Li-ion battery and field-replaceable AC adapter. IC Role / Device Role / Timing Role: System power manager providing adaptive input current limiting (IDPM), accurate battery fuel gauging (IBAT), and robust overvoltage protection (VSYS/OVP). Use Value: Maintains stable 12-V system rail across variable input (9–24 V), supports firmware-updatable PROCHOT thresholds, and meets IEC 62368-1 safety certification. |
| Detachable Tablet with Keyboard Dock | Drone Battery Charging Hub |
Use Scenario: Tablet docked to keyboard base with shared battery and dual-power-path architecture (adapter + tablet battery). IC Role / Device Role / Timing Role: NVDC controller coordinating charge distribution between tablet and dock batteries while regulating VSYS for both subsystems. Use Value: Eliminates need for separate battery management ICs; enables bidirectional power flow and seamless transition between docked/undocked states. | Use Scenario: Multi-bay smart charger for 3s drone batteries with USB-C PD input and individual cell balancing supervision. IC Role / Device Role / Timing Role: High-accuracy charge controller with ±0.5% VBAT regulation and programmable charge termination for consistent cell matching. Use Value: Reduces charge time variance across bays; supports USB PD negotiation for dynamic input current allocation per bay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost battery charge controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ25713RSNR | Pin-to-pin and software compatible; differs only in device address (0x6B vs. 0x6A) and minor register defaults per Revision History. | No functional difference in NVDC operation, OTG, VAP, or PTM; identical electrical specs and package. | Select BQ25713BRSNR when I²C bus requires unique address 0x6A to avoid conflict with other BQ25713 devices. |
| BQ25718RSNR | Same I²C interface and WQFN-32 package; adds integrated 5-V LDO (REGN) and enhanced VAP timing control but lacks OTG voltage resolution finer than 64 mV. | Preferred for systems needing local 5-V bias rail and tighter VAP response; unsuitable where 8-mV OTG resolution is mandatory (e.g., USB PD 3.0 PPS compliance). | Choose BQ25718RSNR for simplified power tree with integrated REGN; retain BQ25713BRSNR where OTG precision and proven IMVP9 PROCHOT behavior are design-critical. |
Compared with BQ25713RSNR, the BQ25713BRSNR offers identical core functionality with a distinct I²C address-ideal for multi-device configurations. Against BQ25718RSNR, it trades integrated REGN and refined VAP timing for superior OTG voltage resolution (8 mV vs. 64 mV), making it the preferred choice for USB PD 3.0 PPS implementations requiring fine-grained VBUS control.
Availability
BQ25713BRSNR is available at Aetrix Electronics and suitable for ultrabooks, detachable tablets, industrial handhelds, drone chargers, and medical portable monitors requiring stable component supply, long-term lifecycle support, and IEC 62368-1 certified power management.
Supply support for BQ25713BRSNR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The BQ25713BRSNR belongs to TI's battery charge controller product line, engineered specifically for high-density, multi-source portable computing platforms requiring NVDC architecture, intelligent thermal management, and USB PD-compliant OTG capability.
FAQ
What is the primary function of the BQ25713BRSNR in a portable computing system?
The BQ25713BRSNR serves as a synchronous I²C-controlled buck-boost battery charge controller with NVDC power path management. In portable computing systems, it regulates system voltage (VSYS) independently of battery state, enables instant-on from 0% battery, manages charge from diverse inputs (USB PD, legacy adapters), and provides IMVP8/IMVP9-compliant PROCHOT signaling for CPU thermal throttling-ensuring stable operation under dynamic load conditions.
How does the BQ25713BRSNR implement Vmin Active Protection (VAP), and what system benefit does it provide?
The BQ25713BRSNR implements VAP by pre-charging input decoupling capacitors from the battery when only battery powers the system and no OTG load is present. During CPU turbo bursts or other peak-power events, this stored energy supplements instantaneous current demand, preventing VSYS from collapsing below the minimum system voltage. This avoids system crashes and eliminates the need for oversized bulk capacitance-directly supporting Intel-recommended platform stability for 1s–2s battery configurations.
Does the BQ25713BRSNR support USB Power Delivery 3.0 Programmable Power Supply (PPS) compliance, and how is this achieved?
Yes, the BQ25713BRSNR supports USB PD 3.0 PPS compliance through its USB OTG functionality. It generates a precisely adjustable VBUS output from 3.0 V to 20.8 V with 8-mV resolution and configurable slew rate-matching PPS voltage step requirements. The OTG output current is programmable up to 6.4 A in 50-mA increments, and the entire profile is controlled via I²C registers (e.g., REG0x35, REG0x09/08), enabling full PPS handshake emulation in host-managed applications.
What are the key differences between BQ25713BRSNR and BQ25713RSNR, and when should each be selected?
The BQ25713BRSNR and BQ25713RSNR are pin-to-pin and software compatible, differing only in I²C device address (0x6A vs. 0x6B) and minor default register values documented in the Revision History. They share identical electrical specifications, NVDC behavior, OTG resolution, and safety certifications. Select BQ25713BRSNR when deploying multiple BQ25713-family devices on the same I²C bus to avoid address collision; otherwise, either part satisfies the same functional requirements.
How does Pass Through Mode (PTM) improve system-level efficiency in the BQ25713BRSNR?
Pass Through Mode (PTM) in the BQ25713BRSNR improves system-level efficiency by bypassing the buck-boost power stage when input voltage is within the optimal range for direct VSYS delivery. Instead of converting power through switches and inductors, PTM routes adapter power directly to the system rail-reducing conduction losses, lowering thermal stress, and increasing overall power delivery efficiency by up to 3%. This mode also accelerates battery charging by freeing converter bandwidth for dedicated charge current delivery.
BQ25713BRSNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Battery Monitor
- Battery Chemistry:
- Multi-Chemistry
- Number of Cells:
- 1 ~ 4
- Fault Protection:
- Over Current, Over Temperature, Over Voltage
- Interface:
- I2C
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (4x4)
BQ25713BRSNR FAQ
1.How can I place an order for BQ25713BRSNR through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ25713BRSNR 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 BQ25713BRSNR reliable?
The price and inventory of BQ25713BRSNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ25713BRSNR is usually 5 days.
3.What payment methods are accepted for BQ25713BRSNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ25713BRSNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ25713BRSNR?
BQ25713BRSNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ25713BRSNR 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 BQ25713BRSNR?
For technical support, including BQ25713BRSNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ25713BRSNR requirements.
6.How does Aetrix verify that BQ25713BRSNR is sourced from the original manufacturer or authorized distributors?
All BQ25713BRSNR 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 BQ25713BRSNR meets industry standards.
7.What is the process for return or replacement of BQ25713BRSNR?
All BQ25713BRSNR units undergo pre-shipment inspection (PSI). If there is an issue with BQ25713BRSNR, 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 BQ25713BRSNR part is unused and in its original packaging.
Return procedure for BQ25713BRSNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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