BQ77307
- Primary or secondary voltage, current, and temperature protection for 2-series to 7-series cells with an autonomous recovery option
- Voltage protection:
- Cell overvoltage (COV): 0 V–5.5 V in 1-mV steps, ±4-mV accuracy
- Cell undervoltage (CUV): 0 V–5.5 V in 1-mV steps, ±4-mV accuracy
- Current protection:
- Short circuit in discharge (SCD): 10 mV–500 mV, varying steps
- Overcurrent in charge (OCC): 3 mV–123 mV, 2-mV steps
- Overcurrent in discharge 1 and 2 (OCD1 and OCD2): 4 mV–200 mV, 2-mV steps
- Temperature protection using external NTC thermistor:
- Overtemperature in charge and discharge (OTC and OTD)
- Undertemperature in charge and discharge (UTC and UTD)
- Internal die overtemperature
- Integrated low-side drivers for NFET protection with an optional autonomous recovery
- Low power operation:
- NORMAL mode, both FETs enabled: 8 µA
- NORMAL mode, FETs disabled: 5 µA
- SHUTDOWN Mode: < 1 µA
- High voltage tolerance of 45 V on cell connect and select additional pins
- Integrated one-time-programmable (OTP) memory for device settings, programmed by TI
- Programmable interrupt for host processor, status information available through I 2C
- 400-kHz I 2C serial communications with optional CRC support
- Programmable LDO for external system usage
- 20-pin QFN 3.5 mm × 3.5 mm × 0.9 mm (RGR) package
技術文件
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檢視所有 2 類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | BQ77307 2-Series to 7-Series High Accuracy Battery Primary or Secondary Protector for Li-Ion, Li-Polymer, LiFePO4(LFP), and LTO Battery Packs datasheet | PDF | HTML | 2023年 12月 8日 |
User guide | BQ77307 Technical Reference Manual | PDF | HTML | 2023年 12月 6日 |
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)。
封裝 | 引腳 | 下載 |
---|---|---|
VQFN (RGR) | 20 | 檢視選項 |
訂購與品質
內含資訊:
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊:
- 晶圓廠位置
- 組裝地點
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。