Features: *Provides Authentication of Battery Packs Through a Programmable CRC With a 96-bit Unique Device ID*16 Bytes of User-Programmable Nonvolatile Memory*12.5 KV IEC ESD Protection on HDQ Input*Internal Time-Base Eliminates External Crystal Oscillator*Low-Power Operating: <30 µ A*Sin...
BQ26150: Features: *Provides Authentication of Battery Packs Through a Programmable CRC With a 96-bit Unique Device ID*16 Bytes of User-Programmable Nonvolatile Memory*12.5 KV IEC ESD Protection on HDQ Input...
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Power Management IC Development Tools HEADPHONE DRIVER
UNIT | ||
VSS | Supply voltage (HDQ with respect to VSS ) | 0.3 V to 7.7 V |
VI | Input voltage (HDQP with respect to VSS ) | 0.3 V to 7 V |
IO | Output current (HDQ and HDQP) | 5 mA |
TA | Operating free-air temperature range | 20 to 70 |
Tstg | Storage temperature range | 65 to 150 |
TJ | Junction temperature range | 40 to 125 |
Lead temperature (soldering, 10 sec) | 300 |
The bq26150 provides a method to authenticate battery packs, ensuring that only packs manufactured by authorized sub-contractors are used in the end application. The bq26150 uses a 96-bit unique device ID, device unique 16-bit seed, and a 16-bit device specific CRC to provide security. The BQ26150 ID, CRC seed, and CRC polynomial coefficients are stored securely in each bq26150 device, allowing the host to authenticate each pack.
The bq26150 communicates to the system over a simple one-wire, bidirectional serial interface. The 5 kbits/s HDQ bus interfaces reduces communications overhead in the external microcontroller. The bq26150 also uses the HDQ bus to charge an external capacitor that provides power to the bq26150.