MAX17044

Part: MAX17043/MAX17044 from Maxim Integrated

Type: Host-Side Fuel-Gauge System

Description: Ultra-compact, low-cost, host-side fuel-gauge systems for lithium-ion batteries, using the ModelGauge algorithm to track relative state-of-charge continuously without relearn cycles or an external current-sense resistor, and communicating via an I2C interface.

Operating Conditions:

• Supply voltage: +2.5V to +4.5V
• Operating temperature: -20°C to +70°C
• MAX17043 CELL Pin voltage: -0.3V to +5.0V
• MAX17044 CELL Pin voltage: -0.3V to +10.0V

Absolute Maximum Ratings:

• Max supply voltage: +6V (on all other pins relative to VGND)
• Max continuous current: null
• Max junction/storage temperature: -55°C to +125°C

Key Specs:

• Active Current (IACTIVE): 50 µA (typ) at VDD = 2.0V
• Sleep-Mode Current (ISLEEP): 1 µA (typ) at VDD = 3.6V, +25°C
• MAX17043 Voltage Measurement Error: ±12.5 mV (TA = +25°C, VIN = VDD)
• MAX17044 Voltage Measurement Error: ±30 mV (TA = +25°C, 5.0V < VIN < 9.0V)
• SCL Clock Frequency (fSCL): 0 to 400 kHz
• MAX17043 VCELL Measurement Range: 0 to 5.00V
• MAX17044 VCELL Measurement Range: 0 to 10.00V
• Capacitive Load for Each Bus Line (CB): 400 pF (max)

Features:

• Host-Side or Battery-Side Fuel Gauging (1 Cell for MAX17043, 2 Cell for MAX17044)
• Precision Voltage Measurement (±12.5mV for MAX17043, ±30mV for MAX17044)
• Accurate Relative Capacity (RSOC) Calculated from ModelGauge Algorithm
• No Full-to-Empty Battery Relearning Necessary
• No Sense Resistor Required
• External Alarm/Interrupt for Low-Battery Warning
• 2-Wire Interface
• Low Power Consumption

Applications:

• Smartphones, Tablets
• Health and Fitness Monitors
• Digital Still, Video, and Action Cameras
• Medical Devices
• Handheld Computers and Terminals
• Wireless Speakers

Package:

• 9-bump UCSP (0.4mm pitch)
• 8-pin TDFN (2mm x 3mm)

• Host-Side or Battery-Side Fuel Gauging
  • 1 Cell (MAX17043)
  • 2 Cell (MAX17044)
• Precision Voltage Measurement
  • ±12.5mV Accuracy to 5.00V (MAX17043)
  • ±30mV Accuracy to 10.00V (MAX17044)
• Accurate Relative Capacity (RSOC) Calculated from ModelGauge Algorithm
• No Offset Accumulation on Measurement
• No Full-to-Empty Battery Relearning Necessary
• No Sense Resistor Required
• External Alarm/Interrupt for Low-Battery Warning
• 2-Wire Interface
• Low Power Consumption
• Tiny, Lead(Pb)-Free, 8-Pin, 2mm x 3mm TDFN Package or Tiny 0.4mm Pitch 9-Bump UCSP Package

• Smartphones, Tablets
• Health and Fitness Monitors
• Digital Still, Video, and Action Cameras
• Medical Devices
• Handheld Computers and Terminals
• Wireless Speakers

ModelGauge is a trademark of Maxim Integrated Products, Inc. UCSP is a trademark of Maxim Integrated Products, Inc.

Visit <www.maximintegrated.com/products/patents> for product patent marking information.

Simple Fuel-Gauge Circuit Diagram

Features

• Host-Side or Battery-Side Fuel Gauging
  • 1 Cell (MAX17043)
  • 2 Cell (MAX17044)
• Precision Voltage Measurement
  • ±12.5mV Accuracy to 5.00V (MAX17043)
  • ±30mV Accuracy to 10.00V (MAX17044)
• Accurate Relative Capacity (RSOC) Calculated from ModelGauge Algorithm
• No Offset Accumulation on Measurement
• No Full-to-Empty Battery Relearning Necessary
• No Sense Resistor Required
• External Alarm/Interrupt for Low-Battery Warning
• 2-Wire Interface
• Low Power Consumption
• Tiny, Lead(Pb)-Free, 8-Pin, 2mm x 3mm TDFN Package or Tiny 0.4mm Pitch 9-Bump UCSP Package

(2.5V ≤ VDD ≤ 4.5V, TA = -20°C to +70°C, unless otherwise noted.)

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.