BQ32000
- Automatic Switchover to Backup Supply
- I2C Interface Supports Serial Clock up to 400 kHz
- Uses 32.768-kHz Crystal With –63-ppm to +126-ppm Adjustment
- Integrated Oscillator-Fail Detection
- 8-Pin SOIC Package
- –40°C to 125°C Ambient Operating Temperature
The BQ32000 device is a compatible replacement for industry standard real-time clocks.
The BQ32000 features an automatic backup supply with integrated trickle charger. The backup supply can be implemented using a capacitor or non-rechargeable battery. The BQ32000 has a programmable calibration adjustment from –63 ppm to +126 ppm. The BQ32000 registers include an OF (oscillator fail) flag indicating the status of the RTC oscillator, as well as a STOP bit that allows the host processor to disable the oscillator. The time registers are normally updated once per second, and all the registers are updated at the same time to prevent a timekeeping glitch. The BQ32000 includes automatic leap-year compensation.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | BQ32000 Real-Time Clock (RTC) datasheet (Rev. F) | PDF | HTML | 2026/8/6 | ||
| 應用說明 | BQ32002 APIs for Tiva | 2014/1/28 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
BQ32KSW-LINUX — 適用於 BQ32K 的 Linux 驅動程式
The Linux driver supports the BQ32000 Serial RTC. The Linux driver supports communication through the I2C bus and interfaces with the RTC sub-system.
Linux Mainline StatusAvailable in Linux Main line: Yes
Available through git.ti.com: N/A
- bq32000
The files associated (...)
TIDA-010253 — 適用於儲能系統的電池控制單元參考設計
此參考設計為高電壓鋰離子 (Li-ion)、磷酸鐵鋰 (LiFePO4) 電池架的中央控制器。此設計提供適用於高電壓繼電器的驅動電路、通訊介面 (包括 RS-485、控制器區域網路 (CAN)、菊鍊與乙太網路)、濕度感測器的可擴充介面、高電壓類比轉數位轉換器 (ADC),以及電流感測器。
此設計使用高性能微控制器進行開發和測試應用。這些功能讓此參考設計適用於高容量電池架應用的中央控制器。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。