Battery Fuel Gauges | FFG3105

Battery ID and Smart Charge Monitor

Obsolete

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Overview

The FFG3105 battery ID and smart charge monitor chip is designed for battery packs used in cell phones and other mobile devices. The FFG3105 has two programmable 64-bit registers, which can be used to store a pack’s identification code. The FFG3105 monitors the cell voltage and temperature providing precise knowledge of these values. This information can be used in charging applications to ensure optimal performance and safety.
The FFG3105 includes an integrated temperature sensor and battery voltage monitor. The FFG3105 also includes twelve 16-bit registers which can be used to store battery parameters and recent history. A system side fuel gauge like onsemi’s FFG1040 can use these registers to facilitate fast initialization following battery removal and reinsertion or for battery swaps. All registers including temperature and voltage readings can be accessed by the host via I2C in either Standard-mode or Fast-mode.
Each Battery ID register has an internal redundant copy to improve robustness and protect against potential miss programming.
The FFG3105 utilizes a 2 x 3 ball, 0.5 mm pitch, WLCSP with nominal dimensions of 0.96 x 1.66 mm2.

  • Mobile Handsets

  • Two, One-Time-Programmable, 64-Bit Registers for Unique Identifier Codes.
  • Precision Voltage and Temperature Measurement enables Smart Charging Topologies
  • Low Power:
  • < 2 µA Shutdown Current
  • 2 µA Standby Current
  • < 4.5 µA Average Active Current
  • Fully Integrated I2C Slave with support for Normal and Fast Modes with auto increment.
  • Internal BID redundancy for increased robustness
  • 6-Ball, 2 x 3, 0.5 mm Pitch - Chip Scale Packaging (WLCSP)

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FFG3105UCX

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Obsolete

CAD Model

Pb

A

H

P

WLCSP-6

567PY

1

260

REEL

3000

N

Li-ion

1

I2C

2.5

4.5

-

-

-40

85

Price N/A

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Reliability Data

Die Related Summary Data

Device: FFG3105UCX

Equivalent to wafer fab process: CM

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

CM

0

273774116

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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