BQ771801 Series
Family 2-5S Overvoltage Protector with Internal Delay Timer
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Family 2-5S Overvoltage Protector with Internal Delay Timer
| Part | Mounting Type | Number of Cells [Min] [custom] | Number of Cells [Max] [custom] | Operating Temperature [Max] | Operating Temperature [Min] | Function | Package / Case | Supplier Device Package | Battery Chemistry |
|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ771801DPJR | Surface Mount | 2 | 5 | 110 °C | -40 °C | Battery Protection | 8-WDFN Exposed Pad | 8-WSON (3x4) | Lithium Ion |
Texas Instruments BQ771801DPJT | Surface Mount | 2 | 5 | 110 °C | -40 °C | Battery Protection | 8-WDFN Exposed Pad | 8-WSON (3x4) | Lithium Ion |
Key Features
• 2-, 3-, 4-, and 5-series cell overvoltage protectionInternal delay timerFixed OVP thresholdHigh-accuracy overvoltage protection: ± 10 mVLow power consumption ICC≈ 1 µA (VCELL(ALL)< VPROTECT)Low leakage current per cell input < 100 nAFunctional Safety-CapableDocumentation available to aid functional safety system designPackage footprint options:Small 8-pin QFN (3.00 mm × 4.00 mm)Leaded 8-pin MSOP (3.00 mm × 5.00 mm, including leads)2-, 3-, 4-, and 5-series cell overvoltage protectionInternal delay timerFixed OVP thresholdHigh-accuracy overvoltage protection: ± 10 mVLow power consumption ICC≈ 1 µA (VCELL(ALL)< VPROTECT)Low leakage current per cell input < 100 nAFunctional Safety-CapableDocumentation available to aid functional safety system designPackage footprint options:Small 8-pin QFN (3.00 mm × 4.00 mm)Leaded 8-pin MSOP (3.00 mm × 5.00 mm, including leads)
Description
AI
The BQ7718xy family of products provides an overvoltage monitor and protector for Li-Ion battery pack systems. Each cell is monitored independently for an overvoltage condition. For quicker production-line testing, the BQ7718xy device provides a Customer Test Mode (CTM) with greatly reduced delay time.
In the BQ7718xy device, an internal delay timer is initiated upon detection of an overvoltage condition on any cell. Upon expiration of the delay timer, the output is triggered into its active state (either high or low depending on the configuration).
The BQ7718xy family of products provides an overvoltage monitor and protector for Li-Ion battery pack systems. Each cell is monitored independently for an overvoltage condition. For quicker production-line testing, the BQ7718xy device provides a Customer Test Mode (CTM) with greatly reduced delay time.
In the BQ7718xy device, an internal delay timer is initiated upon detection of an overvoltage condition on any cell. Upon expiration of the delay timer, the output is triggered into its active state (either high or low depending on the configuration).