Product details

Function Protection Number of series cells (min) 3 Number of series cells (max) 16 Features FET drive, Open wire (OW), Over-temperature (OT), Overvoltage, Stackable, Under-temperature (UT), Undervoltage Operating current (typ) (µA) 1 Rating Catalog Vin (max) (V) 85 TI functional safety category Functional Safety-Capable Overvoltage protection 3.6, 3.8, 4.225, 4.25, 4.275, 4.3, 4.325, 4.35 Operating temperature range (°C) -40 to 110 Battery overvoltage protection (min) (V) 3.55 Battery overvoltage protection (max) (V) 5.1
Function Protection Number of series cells (min) 3 Number of series cells (max) 16 Features FET drive, Open wire (OW), Over-temperature (OT), Overvoltage, Stackable, Under-temperature (UT), Undervoltage Operating current (typ) (µA) 1 Rating Catalog Vin (max) (V) 85 TI functional safety category Functional Safety-Capable Overvoltage protection 3.6, 3.8, 4.225, 4.25, 4.275, 4.3, 4.325, 4.35 Operating temperature range (°C) -40 to 110 Battery overvoltage protection (min) (V) 3.55 Battery overvoltage protection (max) (V) 5.1
TSSOP (PW) 24 49.92 mm² 7.8 x 6.4
  • 3-series cell to 16-series cell protection
  • High-accuracy overvoltage protection
    • ± 10 mV at 25°C
    • ± 20 mV from 0°C to 60°C
  • Overvoltage protection options from 3.55 V to 5.1 V
  • Undervoltage protection with options from 1.0 V to 3.5 V
  • Open-wire connection detection
  • Overtemperature protection
  • Random cell connection
  • Functional safety-capable
  • Fixed internal delay timers
  • Fixed detections thresholds
  • Fixed output drive type for each of COUT and DOUT
    • Active high or active low
    • Active high drive to 6 V
    • Open drain with the ability to be pulled up externally to VDD
  • Low power consumption I CC ≈ 1 µA (V CELL(ALL) < V OV)
  • Low leakage current per cell input < 100 nA with open wire detection disabled
  • Package footprint options:
    • Leaded 24-pin TSSOP with 0.65-mm lead pitch
  • 3-series cell to 16-series cell protection
  • High-accuracy overvoltage protection
    • ± 10 mV at 25°C
    • ± 20 mV from 0°C to 60°C
  • Overvoltage protection options from 3.55 V to 5.1 V
  • Undervoltage protection with options from 1.0 V to 3.5 V
  • Open-wire connection detection
  • Overtemperature protection
  • Random cell connection
  • Functional safety-capable
  • Fixed internal delay timers
  • Fixed detections thresholds
  • Fixed output drive type for each of COUT and DOUT
    • Active high or active low
    • Active high drive to 6 V
    • Open drain with the ability to be pulled up externally to VDD
  • Low power consumption I CC ≈ 1 µA (V CELL(ALL) < V OV)
  • Low leakage current per cell input < 100 nA with open wire detection disabled
  • Package footprint options:
    • Leaded 24-pin TSSOP with 0.65-mm lead pitch

The BQ77216 family of products provides a range of voltage and temperature monitoring, including overvoltage (OVP), undervoltage (UVP), open wire (OW), and overtemperature (OT) protection for Li-ion battery pack systems. Each cell is monitored independently for overvoltage, undervoltage, and open-wire conditions. With the addition of an external NTC thermistor, the device can detect overtemperature conditions.

In the BQ77216 device, an internal delay timer is initiated upon detection of an overvoltage, undervoltage, open-wire, or overtemperature condition. Upon expiration of the delay timer, the respective output is triggered into its active state (either high or low, depending on the configuration).

The BQ77216 family of products provides a range of voltage and temperature monitoring, including overvoltage (OVP), undervoltage (UVP), open wire (OW), and overtemperature (OT) protection for Li-ion battery pack systems. Each cell is monitored independently for overvoltage, undervoltage, and open-wire conditions. With the addition of an external NTC thermistor, the device can detect overtemperature conditions.

In the BQ77216 device, an internal delay timer is initiated upon detection of an overvoltage, undervoltage, open-wire, or overtemperature condition. Upon expiration of the delay timer, the respective output is triggered into its active state (either high or low, depending on the configuration).

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Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

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Reference designs

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This reference design is a low standby and ship-mode current consumption and high cell voltage accuracy 10s–16s Lithium-ion (Li-ion), LiFePO4 battery pack design. It monitors each cell voltage, pack current, cell and MOSFET temperature with high accuracy and protects the Li-ion, LiFePO4 (...)
Design guide: PDF
Schematic: PDF
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TSSOP (PW) 24 Ultra Librarian

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