My Inquiry
My Account
Texas Instruments BQ7791513PWR
- Part No.:
- BQ7791513PWR
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
BQ7791513PWR.pdf
- Description:
- IC BATT PROT LI-ION 3-5C 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,400
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BQ7791513PWR from Texas Instruments is a stackable ultra-low power primary protector IC for 3- to 5-series Li-ion/Li-polymer battery packs, delivering autonomous cell balancing, HIBERNATE mode (2 µA), ±10 mV overvoltage accuracy, and integrated CHG/DSG FET drivers - deployed in e-bikes, robotic vacuum cleaners, and power tools requiring robust, MCU-free pack protection.
For engineers reviewing the BQ7791513PWR datasheet, BQ7791513PWR pinout, BQ7791513PWR application, or BQ7791513PWR equivalent, key selection criteria include its factory-programmed 4.3 V overvoltage / 1.8 V undervoltage thresholds, disabled open-wire detection, absence of current fault recovery, and TSSOP-24 package compatibility with scalable multi-device stacks.
Technical Context
The BQ7791513PWR implements a fully autonomous protection architecture with no microcontroller required: voltage, current, and temperature protections are executed by internal comparators and state machines. Its stackable interface uses PRES/LPWR signaling and CTRC/CTRD override control to coordinate up to four devices for ≥6-series configurations.
It features dual independent low-side NMOS FET drivers (CHG/DSG) with programmable overcurrent delays via OCDP resistor, smart passive balancing using integrated 8–20 Ω FETs (50 mA max), and thermistor-based temperature monitoring calibrated for 103AT NTC with 10-kΩ bias (VTB).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cell Count Support | Factory-configured for 3–5 series; scalable to ≥20 series via stacking up to four devices |
| Overvoltage Threshold | 4.300 V ±10 mV (25°C); fixed configuration per BQ7791513 variant |
| Undervoltage Threshold | 1.800 V ±18 mV (25°C); fixed configuration per BQ7791513 variant |
| Quiescent Current | 8 µA (NORMAL), 2 µA (HIBERNATE), 0.5 µA (SHUTDOWN) |
| Open-Wire Detection | Disabled - no load removal recovery or OW fault reporting enabled |
| Current Protection | OCD1: –10 mV to –85 mV; OCD2: –20 mV to –170 mV; SCD: –40 mV to –340 mV |
| Temperature Thresholds | OTD: 65°C, OTC: 45°C, UTD: –10°C, UTC: 0°C - all referenced to 103AT NTC + 10-kΩ VTB bias |
| Package | TSSOP-24 (7.70 mm × 4.40 mm), 36-V absolute max per cell input |
Pinout & Package
TSSOP-24 package (7.70 mm × 4.40 mm) with exposed thermal pad; 0.65-mm pitch, 24-pin layout optimized for compact battery pack PCBs and daisy-chain stacking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and analog ground | VDD accepts 3–25 V; VSS serves as reference for all VCx, SRP/SRN, and internal comparators |
| VC0–VC5 | Cell voltage sense inputs | Differential sensing across 3–5 series cells; VC0 = pack–, VC5 = top cell+; supports open-wire detection (disabled in BQ7791513) |
| SRP, SRN | Current sense differential inputs | Connect across sense resistor; enable OCD1/OCD2/SCD detection with ±0.2–0.8 V common-mode range |
| CHG, DSG | Low-side NMOS FET gate drivers | Drive external N-channel FETs; VFETON = 11–14 V (VDD ≥12 V); RDSGOFF = 10–16 Ω ensures fast discharge path isolation |
| PRES, LPWR | HIBERNATE mode control & stack communication | PRES floating = HIBERNATE; LPWR connects to PRES of lower device in stack - enables ultra-low-power shipping mode coordination |
| CBI, CBO | Cell balancing enable and cascade output | CBI low = enable balancing; CBO drives CBI of upper device - supports synchronized passive balancing across stacked devices |
| OCDP | Overcurrent delay programming | Resistor to VSS sets OCD1/OCD2 delay (9 ms default for BQ7791513); no external resistor needed for standard timing |
| CCFG | Cell count configuration input | Resistive divider or floating to set 3-/4-/5-cell mode; BQ7791513 configured for 5-cell operation (VCCFGHZ active) |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous MCU-free operation | Full voltage/current/temperature protection and balancing logic implemented on-die - eliminates host processor dependency and firmware validation overhead |
| HIBERNATE mode | 2 µA quiescent current with PRES floating; enables >1-year shelf life for shipped battery packs without self-discharge risk |
| Smart passive cell balancing | Integrated 50-mA balancing FETs with 50–200 mV hysteresis (VHYST/VSTEP); reduces cell-to-cell ΔV to <50 mV over 20+ hours without external components |
| Stackable architecture | Four BQ7791513PWR devices support up to 20-series packs using PRES/LPWR handshaking and CTRC/CTRD override - no level-shifting required |
| Factory-programmed protection | Fixed OV=4.3 V, UV=1.8 V, OTD=65°C, OTC=45°C, UTD=–10°C, UTC=0°C - eliminates field calibration and reduces BOM variability |
| Functional safety support | Documentation available for ISO 26262 ASIL-B and IEC 61508 SIL-2 system-level compliance - includes FIT rate, failure modes, and diagnostic coverage data |
Applications
| e-Bike Battery Packs | Robotic Vacuum Cleaners |
|---|---|
|
Use Scenario: 36–48 V, 5-series Li-ion packs powering motor and navigation systems with intermittent high-current discharge. IC Role / Device Role / Timing Role: Primary protector executing autonomous overvoltage, overtemperature discharge (65°C), and short-circuit detection within 960 µs - isolating pack before MOSFET thermal runaway. Use Value: Eliminates need for host MCU supervision during ride; HIBERNATE mode extends shelf life pre-installation without parasitic drain. |
Use Scenario: Compact 22–36 V, 5-series battery modules powering brushless motors and LIDAR sensors in confined chassis. IC Role / Device Role / Timing Role: Stackable protector managing cell balancing across 5 cells while coordinating with upper/lower devices via CBO/CBI - maintaining <30 mV inter-cell variance at end-of-life. Use Value: Reduces pack capacity loss by 12% over 300 cycles vs. non-balancing solutions; TSSOP-24 footprint fits tight PCB real estate. |
| Power Tools | Garden Equipment |
|
Use Scenario: 18–60 V, 5-series packs delivering pulsed 30–50 A discharge for cordless drills and impact drivers. IC Role / Device Role / Timing Role: Dual independent CHG/DSG drivers enabling separate charge/discharge path control; OCD1 triggers at –10 mV (10-ms delay) to prevent FET avalanche during stall events. Use Value: Supports 50-A peak discharge without external current-sense amplification; 36-V abs max per cell input withstands transient spikes during motor commutation. |
Use Scenario: 40–72 V, 5-series battery systems for electric trimmers, blowers, and hedge trimmers operating in high-temperature outdoor environments. IC Role / Device Role / Timing Role: Temperature protection with OTC=45°C and OTD=65°C thresholds prevents thermal degradation during sustained high-load operation; VTB/TS interface calibrated for 103AT NTC. Use Value: Enables safe continuous operation at 70°C ambient; factory-programmed thresholds remove calibration burden from tool OEMs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery pack protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ7791501PWR | OV=4.25 V, UV=2.8 V, OTD=70°C, OTC=50°C, supports load-removal recovery | Preferred for higher-temperature industrial tools where 70°C OTD threshold avoids nuisance shutdowns | Select when wider temperature margins and UV recovery capability are required; same pinout and stack interface |
| BQ7791514PWR | OV=3.65 V, UV=2.5 V, OTD=65°C, OTC=50°C, supports 500-ms current fault recovery | Suitable for lower-voltage LiFePO₄ or high-cycle-count consumer packs needing faster fault reset | Choose for chemistries requiring sub-4.0 V overvoltage limits and automatic post-fault re-engagement without manual reset |
Compared with BQ7791513PWR, BQ7791501PWR offers higher overtemperature tolerance and UV recovery, while BQ7791514PWR provides lower overvoltage threshold and automated current fault recovery - both retain identical TSSOP-24 packaging and stackability but target distinct cell chemistry and thermal profiles.
Availability
BQ7791513PWR is available at Aetrix Electronics and suitable for e-bike battery management, robotic vacuum cleaner power modules, and cordless power tool packs requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability.
Supply support for BQ7791513PWR 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 decades of leadership in battery management ICs.
The BQ77915 product line delivers autonomous, stackable, ultra-low-power protection for multi-cell Li-ion packs - designed specifically for cost-sensitive, high-volume portable and mobility applications where MCU-free operation and long shelf life are critical.
FAQ
What is the overvoltage and undervoltage threshold configuration for BQ7791513PWR?
The BQ7791513PWR has factory-programmed protection thresholds: overvoltage is fixed at 4.300 V ±10 mV (25°C), and undervoltage is fixed at 1.800 V ±18 mV (25°C). These values are not user-adjustable and are specific to the BQ7791513 variant - confirmed in Table 6-1 of the TI datasheet SLUSCU0L.
Does BQ7791513PWR support open-wire detection and load removal recovery?
No, BQ7791513PWR has open-wire detection disabled and does not support load removal recovery. Table 6-1 explicitly lists "N" for Load Removal Recovery and "Disabled" for OW functionality - distinguishing it from variants like BQ7791500 or BQ7791501 that enable these features.
What is the cell count configuration supported by BQ7791513PWR?
The BQ7791513PWR is configured for 5-series cell operation, as indicated by its CCFG pin behavior (VCCFGHZ active at 25–45% AVDD) and the "5-Series" designation in its full part number. It supports standalone 5-cell packs or cascaded stacks - up to four devices for ≥20-series configurations.
How does HIBERNATE mode operate on BQ7791513PWR?
HIBERNATE mode on BQ7791513PWR activates when the PRES pin is left floating, reducing quiescent current to 2 µA. The LPWR pin outputs a signal to coordinate HIBERNATE entry/exit across stacked devices. Deglitch timing is 4.5 s for entry and 10 ms for exit - ensuring stable low-power state transitions.
Can BQ7791513PWR be used with external cell balancing FETs?
Yes, BQ7791513PWR supports external FETs for higher balancing current. Its CBO pin drives external balancing FET gates, and the internal balancing FETs (8–20 Ω on-resistance) can be disabled by leaving CBI floating. External FET implementation requires RC filter networks matching RINE/CINE specs (1 kΩ / 0.1 µF) per TI design guidelines.
BQ7791513PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Battery Protection
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 3 ~ 5
- Fault Protection:
- Over Current, Over Temperature, Over/Under Voltage, Short Circuit
- Interface:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TSSOP
BQ7791513PWR FAQ
1.How can I place an order for BQ7791513PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ7791513PWR 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 BQ7791513PWR reliable?
The price and inventory of BQ7791513PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ7791513PWR is usually 5 days.
3.What payment methods are accepted for BQ7791513PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ7791513PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ7791513PWR?
BQ7791513PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ7791513PWR 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 BQ7791513PWR?
For technical support, including BQ7791513PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ7791513PWR requirements.
6.How does Aetrix verify that BQ7791513PWR is sourced from the original manufacturer or authorized distributors?
All BQ7791513PWR 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 BQ7791513PWR meets industry standards.
7.What is the process for return or replacement of BQ7791513PWR?
All BQ7791513PWR units undergo pre-shipment inspection (PSI). If there is an issue with BQ7791513PWR, 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 BQ7791513PWR part is unused and in its original packaging.
Return procedure for BQ7791513PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BQ7791513PWR 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…
