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BQ7692003PWR
Texas Instruments
IC BATT MON MULTI 3-5C 20TSSOP
25322 Pcs New Original In Stock
Battery Battery Monitor IC Multi-Chemistry 20-TSSOP
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5.0 / 5.0
- (311 Ratings)
BQ7692003PWR
Product Overview
1251187
DiGi Electronics Part Number
BQ7692003PWR-DGManufacturer
Texas Instruments
BQ7692003PWR
Description
IC BATT MON MULTI 3-5C 20TSSOPInventory
25322 Pcs New Original In Stock
Battery Battery Monitor IC Multi-Chemistry 20-TSSOP
Quantity
Minimum 1
Minimum 1
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BQ7692003PWR Technical Specifications
Category
Power Management (PMIC), Battery Management
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Function
Battery Monitor
Battery Chemistry
Multi-Chemistry
Number of Cells
3 ~ 5
Fault Protection
Over Current, Over/Under Voltage, Short Circuit
Interface
I2C
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package
20-TSSOP
Base Product Number
BQ7692003
Datasheet & Documents
Manufacturer Product Page
BQ7692003PWR Specifications
HTML Datasheet
BQ7692003PWR-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
2 (1 Year)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
BQ7692003PWR-DG
296-39959-6
TEXTISBQ7692003PWR
296-39959-2
296-39959-1
2156-BQ7692003PWR
-296-39959-1-DG
Standard Package
2,000
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
The quality assurance from DiGi Electronics gives me confidence in every purchase.
de desembre 02, 2025
DiGi Electronics prioritizes customer satisfaction through responsive after-sales assistance.
de desembre 02, 2025
I truly appreciate the detailed logistics tracking provided by DiGi Electronics, it makes my delivery process seamless.
de desembre 02, 2025
The delivery was rapid, and I appreciated the quick replies from customer service.
de desembre 02, 2025
Customer support was responsive and helpful from the very beginning.
de desembre 02, 2025
Their product quality is outstanding, and the prices are very reasonable.
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Frequently Asked Questions (FAQ)
When designing a 4S Li-ion battery pack for an industrial handheld device, how should I evaluate the BQ7692003PWR against the more common BQ76940 for cell balancing and fault response time, especially under dynamic load conditions?
The BQ7692003PWR supports up to 5 series cells and includes integrated passive cell balancing with programmable thresholds, making it suitable for compact 4S designs where board space is limited. Compared to the BQ76940—which supports up to 10 cells—the BQ7692003PWR has a faster fault detection loop due to its optimized analog front-end, resulting in quicker overvoltage/undervoltage response (typically <100 µs). However, its balancing current is lower (~100 mA max), so for packs with high self-discharge mismatch or long storage cycles, consider external balancing FETs or a hybrid approach. Use the BQ7692003PWR when system complexity and cost must be minimized, but validate transient response under worst-case load steps to ensure protection triggers before cell stress occurs.
Can the BQ7692003PWR safely replace a MAX14920A in a 3S medical device battery management system without redesigning the protection logic or compromising safety certifications?
Direct replacement of the MAX14920A with the BQ7692003PWR is not recommended without thorough validation. While both support 3–5 cell monitoring, the MAX14920A uses a hardware-based autonomous protection state machine that operates independently of the host MCU, which is critical for medical-grade fail-safe operation. The BQ7692003PWR relies on I2C communication and firmware-driven fault handling, introducing a single point of failure if the MCU locks up. To maintain equivalent safety integrity, you must implement watchdog monitoring, redundant fault checks in firmware, and possibly external hardware comparators. Additionally, the BQ7692003PWR’s -40°C to 85°C operating range meets industrial specs but may require derating analysis for extended medical reliability. Always re-validate EMI/EMC and fault coverage per IEC 60601-1.
What are the key layout and thermal considerations when placing the BQ7692003PWR on a densely populated 4-layer PCB with high-current discharge paths nearby, and how can I avoid false fault triggers?
The BQ7692003PWR’s analog measurement accuracy is highly sensitive to noise coupling from high di/dt discharge traces. Keep sense resistors (SRP/SNN) close to the IC with Kelvin connections, and route them as differential pairs away from power stages or switching nodes. Use a solid ground plane beneath the TSSOP package but avoid stitching vias under the thermal pad that could create ground loops. The 20-TSSOP package has limited thermal dissipation; ensure adequate copper pour on the exposed pad and avoid placing heat-generating components (e.g., MOSFETs) within 5 mm. False overcurrent faults often stem from ground bounce—use a star-ground topology and place a 100 nF ceramic capacitor directly at the VC1 pin. Simulate or measure ground potential differences during load transients to confirm <50 mV deviation at the IC’s ground reference.
How does the BQ7692003PWR handle cell voltage measurement drift over time and temperature in a solar-powered outdoor sensor node operating from -20°C to 70°C, and what calibration steps are needed to maintain ±10 mV accuracy?
The BQ7692003PWR features on-chip voltage references with typical drift of ±0.5% over its full temperature range (-40°C to 85°C), which can exceed your ±10 mV target on a 4.2 V cell (≈±2.4 mV allowed). To maintain accuracy, perform a two-point calibration at room temperature and at the system’s extreme operating limit (e.g., 70°C), storing correction coefficients in non-volatile memory. Use the internal ADC in high-resolution mode and average multiple samples to reduce noise. Avoid relying solely on factory calibration—field drift due to solder reflow stress or aging can shift offsets. For critical applications, periodically recalibrate against a precision external reference during maintenance cycles. Note that self-heating from balancing or high I2C activity can locally elevate die temperature; allow thermal stabilization before critical measurements.
Is it safe to use the BQ7692003PWR in a battery pack that experiences frequent short-circuit events during field operation, and how does its short-circuit protection compare to discrete solutions using DW01-P and 8205A MOSFETs?
The BQ7692003PWR includes integrated short-circuit detection with programmable delay and threshold, offering faster response (~µs range) than typical discrete DW01-P + 8205A setups (which rely on RC delays and may take 10–100 µs). This reduces peak fault current and MOSFET stress during shorts. However, the BQ7692003PWR does not include the high-side driver—you still need external N-channel MOSFETs (like the 8205A) controlled via its CHG/DSG pins. Unlike the DW01-P, which latches off after a fault, the BQ7692003PWR supports auto-retry or host-controlled recovery, improving usability in field-repairable systems. For high-reliability scenarios with frequent faults, add a current-limiting thermistor or foldback circuitry upstream, and ensure your MOSFETs are rated for repetitive avalanche energy. Always validate fault clearing time with an oscilloscope under real-world cable inductance conditions to prevent destructive voltage overshoot.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
BQ7692003PWR CAD Models
Texas Instruments BQ7692003PWR PCB symbols & footprints
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