BQ79606A-Q1
6-S-Präzisions-Batteriemonitor, Balancer und integrierter Protektor für den Automobilbereich mit ASI
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BQ79606A-Q1
- Qualified for automotive applications
- AEC-Q100 Qualified with the following results:
- Device temperature grade 2: –40°C to +105°C ambient operating temperature range
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
- Voltage monitor, temperature monitor and communication functions: SafeTI™-26262 ASIL-D compliant
- ± 1.1mV Cell voltage measurement accuracy with an offset
- Configurable digital low pass filter as low as 1.2Hz
- Supports simultaneous cell voltage measurements
- Full-accuracy stack measurements in less than 1 ms (for 96 cells)
- Optional ring architecture to ensure stack communication even with communication cable break
- Monitors 3 to 6 cell connections and up to 6 NTC/auxiliary channels
- Integrated 16-bit analog-to-digital converters (ADC)
- Integrated high-voltage AFE filter components
- Designed for robust hot-plug performance
- Stackable configuration up to 64 devices (1 base + 63 stack, 384-series cells)
- Isolated differential daisy chain communication
- Supports transformer or capacitor based isolation
- Configurable SINC3 digital filter
- Integrated hardware protector
- Secondary protection for cell overtemperature and undertemperature
- Secondary protection for cell overvoltage and undervoltage
- Hardware protector function: SafeTI™-26262 ASIL-B compliant
- Integrated cell-balancing MOSFET’s up to 150 mA
- Designed to pass BCI testing
- UART Host interface
The BQ79606A-Q1 device provides simultaneous, high accuracy, channel measurements for three to six battery cells. With the inclusion of a daisy chain communication port, the BQ79606A-Q1 device is stackable (up to 64 devices) to support the large stack configurations found in battery packs for electrified automotive drive trains. Providing a Delta Sigma converter per cell input, the BQ79606A-Q1 allows simultaneous measurement of the battery voltages.
The BQ79606A-Q1 includes an auxiliary ADC that supports cell temperature measurements for up to six NTCs as well as internal rails to enable safety checks for the device. A die temperature measurement ADC is also included to provide temperature correction to enable high accuracy results over an extended temperature range.
Host communication to the BQ79606A-Q1 device is done via dedicated UART interface. Additionally, an isolated, differential daisy-chain communication interface that supports either capacitor or transformer isolation allows the host to communicate with the entire battery stack. The daisy-chain communication interface can be configured (optional) in a ring architecture that allows the host to talk to devices at either end of the stack in cases of communication line breaks.
Technische Dokumentation
Design und Entwicklung
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BQ79606EVM-897 — 6-Kanal-Präzisionsüberwachungsbaustein mit integriertem Protektor – Evaluierungsmodul
The bq79606EVM is an evaluation board for the bq79606A -Q1. The bq79606A -Q1 provides simultaneous, high accuracy, channel measurements for three to six battery cells. With the inclusion of a daisy chain communication port, the bq79606A -Q1 device is stackable (up to 64 devices) to support the (...)
BQ79606A-EXAMPLE-CODE — BQ79606A-Q1 Beispielcode für Batteriepack-Anwendungen im Automobilbereich
BQ79606-Q1-EXAMPLE-CODE — Example Code Files for BQ79606-Q1
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Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
---|---|---|
HTQFP (PHP) | 48 | Ultra Librarian |
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