1FEATURES
2• Fully Integrated 2-Series, 3-Series, and 4-
Series Li-Ion or Li-Polymer Cell Battery Pack
Manager and Protection
• High Side N-CH Protection FET Drive
• Impedance Track™ Gas Gauging
• Integrated Cell Balancing While Charging or At
Rest
• PF Snapshot and Black Box Technology
Analyze Returned Packs
• AC Peak Power Information Capability
(TURBO Mode)
• SBS v1.1 Interface
• Low Power Modes
– Low Power: < 180 μA
– Sleep < 76 μA
• Complete Set of Advanced Protections:
– Internal Cell Short
– Cell Imbalance
– Cell Voltage
– Overcurrent
– Temperature
– FET Protection
• Sophisticated Charge Algorithms
– JEITA
– Enhanced Charging
– Adaptive Charging
– Cell Balancing While Charging or At Rest
• General Purpose Output for Power Interrupt
• Diagnostic Lifetime Data Monitor
• SHA-1 Authentication
• Small Package: TSSOP

APPLICATIONS
• Notebook/Netbook PCs
• Medical and Test Equipment
• Portable Instrumentation

DESCRIPTION
The bq30z554-R1 device is a fully integrated
Impedance Track™ gas gauge and analog monitoring
single-package solution that provides protection and monitoring with authentication for 2-series, 3-series,
and 4-series cell Li-Ion battery packs. The bq30z554-
R1 device incorporates sophisticated algorithms that
offer cell balancing while charging or at rest.
The device communicates via an SBS v1.1 interface,
providing high accuracy cell parameter reporting and
control of battery pack operation, and can be
designed into systems that require AC peak power
(TURBO mode), using a method to ensure that
system performance is not disrupted.
An optimum balance of quick response hardware-
based protection along with intelligent CPU control
delivers an ideal pack solution. The device has
flexible user-programmable settings of critical system parameters, such as voltage, current, temperature,
and cell imbalance, among other conditions.
The bq30z554-R1 device has advanced charge
algorithms, including JEITA support, enhanced cell
charging, and adaptive charging compensating
charge losses, enabling faster charging. In addition, the bq30z554-R1 device can monitor critical
parameters over the life of the battery pack, tracking
usage conditions.
A general purpose output is used for power
interruption, employing an external push button
switch.
The advanced snapshot and black box functionality
show critical information for analysis of returned battery packs.
SHA-1 authentication with secure memory for authentication keys enables identification for genuine
battery packs beyond doubt.