BQ79826Z-Q1 vs BQ79881-Q1 Comparison
Detailed side-by-side comparison of BQ79826Z-Q1 by Texas Instruments and BQ79881-Q1 by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | BQ79826Z-Q1 | BQ79881-Q1 |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Battery Management | Battery Management |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $12.40 | $7.45 |
| Product Type | 26S/24S stackable battery monitor with EIS engine | UIR Sensor with Pack-Level EIS |
| Cell Count Supported | Up to 26 series cells (stackable to higher counts) | — |
| Cell Voltage Accuracy | ±1.25 mV | — |
| Voltage Measurement Accuracy | < 2 mV across -40°C to +125°C | — |
| Passive Balancing Current | Up to 300 mA per cell | — |
| Integrated Protection | OV/UV cell-protector comparators | — |
| EIS Engine | Integrated electrochemical impedance spectroscopy | Integrated (pack-level) |
| Operating Temperature Range | -40°C to +125°C | — |
| Automotive Qualification | AEC-Q100 Grade 1 | AEC-Q100 |
| Functional Safety | ISO 26262 up to ASIL-D (system level) | ASIL-D capable (ISO 26262) |
| Package | 100-pin HTQFP (PZS), 12x12 mm, 0.4 mm pitch | LQFP-48 (7x7 mm) with EP |
| Mounting Type | Surface Mount with PowerPAD | Surface Mount |
| RoHS Status | Compliant | Compliant |
| Companion Pack Monitor | BQ79881-Q1 | — |
| Limp Home Mode | Supported (automotive) | — |
| Typical Supply Voltage Range | [DATA_NEEDED: typical supply voltage] | — |
| Communication Interface | Isolated daisy-chain UART/SPI | — |
| Function | — | Battery monitor with EIS, voltage, current, insulation resistance monitoring |
| HV Measurement Accuracy | — | <0.4% (ASIL-D) |
| Single-Ended Measurement Range | — | 0.3 V to 5 V |
| Pack Voltage Measurements | — | 2 (fast) |
| VI Sync within BQ79881 | — | 0 us |
| VI Sync with Cell Monitor | — | 5 us typical |
| Insulation Resistance Monitoring | — | Yes (UIR function) |
| Target Application | — | EV/BMS HV Automotive |
| MSL Level | — | [DATA_NEEDED: MSL level] |