日本語 中文
Products >
Applications >
Design >
Support >
Order >
About Us >
Maxim
›
Products
›
Power
›
MAX1906

MAX1906

Li+ Battery-Pack Protector with Integrated Fuse Driver

Download Data Sheet
Subscribe

Please check latest availability status for a specific part variant.

Overview

Description

The MAX1906 protects against overvoltage conditions in lithium-ion/lithium polymer (Li+) battery packs by blowing a three-terminal protection fuse. The IC should be used in conjunction with resettable protection circuits to provide a high level of safety against overcharging Li+ batteries. It can be used with 2-, 3-, or 4-series cell battery packs.

The MAX1906 monitors individual cell voltages. If any cell voltage exceeds the overvoltage threshold for greater than 2.1s, the MAX1906 activates an internal SCR. The SCR sinks sufficient current to blow an external protection fuse, permanently disabling the battery pack. Alternatively, the IC can drive the gate of an external MOSFET to blow the fuse.

The MAX1906 also offers protection against disconnected voltage sense pins. If a disconnected pin is detected, the DISCON output is forced low. The MAX1906 includes a test mode, which determines if the circuit is operating correctly while in an assembled battery pack.

The low-cost MAX1906 is available in a thermally enhanced 16-pin QFN package.
MAX1906: Typical Operating Circuit MAX1906: Typical Operating Circuit Enlarge+

Key Features

  • Protects Against Overvoltage
  • ±1% Accurate Protection Thresholds
  • Integrated 2.1s Fault-Delay Timer
  • Built-in 1.5A SCR Fuse Driver
  • Test Mode for Functional Verification in Assembled Pack
  • 8µA (max) Supply Current
  • 1µA (max) Standby Current
  • Protects Against Disconnected B1P-B4P Pins
  • Protects 2-, 3-, or 4-Series Li+ Battery Packs
  • Available in Small 16-Pin QFN Package (5mm x 5mm)

    • Applications/Uses

    • 2-, 3-, or 4-Series Li+ Battery Packs for Portable Products

    Design Resources

    Quality And Environmental

    Request Reliability Report for: MAX1906 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

    Order

     
    Status:
    Package:
    Temperature:

    Related Resources

    New Products


    MAX20710
    Integrated, Step-Down Switching Regulator with PMBus

    • High Power Density and Low Component Count
    • Optimized Component Performance and Efficiency with Reduced Design-In Time
    • Increased Power-Supply Reliability with System and IC Self-Protection Features

    MAX14922
    High-Side Switch Controller with Current Limiting

    • +9V to +70V Operating Supply Range
    • 5V / 50mA Integrated Linear Regulator
    • -40°C to +125°C Ambient Temperature Operating Range

    MAX77962
    23VIN 3.2AOUT USB-C Buck-Boost Charger with Integrated FETs for 2S Li-Ion Batteries

    • 3.5V to 23V Input Operating Range, 30VDC Withstand Voltage
    • Reverse Leakage Protection
    • 50mA to 3.15A Programmable Input Current Limit

    MAX14917
    Industrial Octal High-Side Switch

    • Robust Solutions
    • Reduces Power and Heat Dissipation
    • Flexible

    MAX17760
    4.5V to 76V, 300mA, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX20430
    Four-Output Mini PMIC for Safety Applications

    • Multiple Functions for Small Size
    • High-Precision for ASIL Applications
    • Diagnostics and Redundant Circuits

    MAX17320
    2S-4S ModelGauge m5 EZ Fuel Gauge with Protector, Internal Self-Discharge Detection, and SHA-256 Authentication

    • Battery Health + Programmable Safety/Protection
    • ModelGauge m5 EZ Algorithm
    • Precision Measurement Without Calibration

    MAX18066
    High-Efficiency, 4A, Step-Down DC-DC Regulator with Internal Power Switches

    • Feature Integration Shrinks Solution Size
    • High Efficiency Conserves Power
    • Safe, Reliable, Accurate Operation

    MAX18166
    High-Efficiency, 4A, Step-Down DC-DC Regulator with Internal Power Switches

    • Feature Integration Shrinks Solution Size
    • High Efficiency Conserves Power
    • Safe, Reliable, Accurate Operation

    MAX77511
    10V Input, Quad-Phase Configurable, 3A/Phase, High-Efficiency Buck Converter

    • 3A/Phase Configurable Buck Regulator
    • 2.3V to 10V Input Voltage Range
    • 0.25V to 5.2V Output Voltage Range

    MAX77711
    10V Input, Quad-Phase Configurable, 3A/Phase, High-Efficiency Buck Converter

    • 3A/Phase Configurable Buck Regulator
    • 2.3V to 10V Input Voltage Range
    • 0.25V to 5.2V Output Voltage Range

    MAX15162
    8V to 60V Smart Dual 1.5A Circuit Breaker with Accurate Current Monitoring

    • 8V to 60V Wide Input Voltage Range
    • Integrated Dual-Power MOSFET 
    • Turn-On Resistance 140mΩ (WLP), 180mΩ (TQFN) MOSFET

    MAX16543
    Integrated Protection IC on a High-Power 12V Bus with an Integrated MOSFET and Lossless Current Sensing

    • Used with the MAX16545B/MAX16545C to Provide Integrated Protection for Loads > 60A On 12V Bus
    • High Density: Industry’s Smallest Circuit Breaker Solution Provides More Than 75% Board Area Savings
    • Lossless, Precise Total System Current Sensing and Reporting

    MAX16545B
    Integrated Protection IC on 12V Bus with an Integrated MOSFET, Lossless Current Sensing, and PMBus Interface

    • High Density (6.5mm × 4mm for 60A): Less than 25% of the Board Area of Conventional Solutions
    • Enables Advanced System Power Management

    MAX16545C
    Integrated Protection IC on 12V Bus with an Integrated MOSFET, Lossless Current Sensing, and PMBus Interface

    • High Density (6.5mm × 4mm for 60A): Less than 25% of the Board Area of Conventional Solutions
    • Enables Advanced System Power Management

    MAX20353
    Wearable Power Management Solution

    • Extend Battery Use Time Between Battery Charging
    • Easy-to-Implement Li+ Battery Charging
    • Minimize Solution Footprint Through High Integration

    MAX15093, MAX15093A
    2.7V to 18V, 15A, Hot-Swap Solution with Current Report Output

    • Integration Reduces Solution Size for Blade Servers and Other Space-Constrained Designs
    • Flexibility Enables Use in Many Unique Designs
    • Safety Features Ensure Accurate, Robust Protection

    MAX15093A
    2.7V to 18V, 15A, Hot-Swap Solution with Current Report Output

    • Integration Reduces Solution Size for Blade Servers and Other Space-Constrained Designs
    • Flexibility Enables Use in Many Unique Designs
    • Safety Features Ensure Accurate, Robust Protection

    MAX15158, MAX15158A
    High-Voltage Multiphase Boost Controller

    • Wide Operating Range
    • Integration Reduces Design Footprint
    • Robust Fault Protection Improves Quality and Reliability

    MAX15158A
    High-Voltage Multiphase Boost Controller

    • Wide Operating Range
    • Integration Reduces Design Footprint
    • Robust Fault Protection Improves Quality and Reliability

    MAX25201
    36V Automotive Low-IQ 200kHz to 2.2MHz Synchronous Boost Controller

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • 20µA Quiescent Current in Skip Mode
    • ±1.5% FB Voltage Accuracy
    • Output Voltage Range: Fixed or Adjustable Between 3.5V and 60V
  • Enables Crank-Ready Designs
    • Operates Down to 1.8V After Startup
    • Wide Input Supply Range from 4.5V to 36V
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands Without Sacrificing Wide Input Voltage Range
    • Spread-Spectrum Option
    • Frequency-Synchronization Input
    • Resistor-Programmable Frequency Between 200kHz and 2.2MHz

    • MAX25202
    36V Automotive Low-IQ 200kHz to 2.2MHz Synchronous Boost Controller

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • 20µA Quiescent Current in Skip Mode
    • ±1.5% FB Voltage Accuracy
    • Output Voltage Range: Fixed or Adjustable Between 3.5V and 60V
  • Enables Crank-Ready Designs
    • Operates Down to 1.8V After Startup
    • Wide Input Supply Range from 4.5V to 36V
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands Without Sacrificing Wide Input Voltage Range
    • Spread-Spectrum Option
    • Frequency-Synchronization Input
    • Resistor-Programmable Frequency Between 200kHz and 2.2MHz

    • MAX25200
    36V Automotive Low-IQ 200kHz to 2.2MHz Sepic/Flyback Controller

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
  • 20μA Quiescent Current in Skip Mode
  • ±1.5% FB Voltage Accuracy

    • MAX20499
    Automotive Core Power Supply 5V, 8A/12A Step-Down Converter

  • High-Efficiency DC-DC Converter
  • Up to 12A peak output current:
    • MAX20499A: 8A
    • MAX20499B: 12A
  • Differential Remote Voltage Sensing

    • MAX17823B
    12-Channel High-Voltage Data Acquisition System

    • AEC-Q100 Grade 2 Temperature Range
    • Operating Voltage from 9V to 65V
    • Ultra-Low-Power Operation

    MAX25024
    Automotive Low Input Voltage I2C 4-Channel 150mA Backlight Driver Supporting ASIL B

    • Wide Voltage-Range Operation
    • High Integration
    • Robust and Low EMI

    MAX25613
    Automotive Infrared LED Controller

    • High-Current IR LED Driver with Reduced Peak Current on the Battery Harness
    • Protection Features Increase System Reliability
    • Automotive Ready

    MAX25601A
    Synchronous Boost and Synchronous Buck LED Controllers

    • Integration Minimizes BOM for High-Brightness LED Driver, Saving Space and Cost
    • Wide Dimming Ratio Allows High Contrast Ratio
    • Protection Features and Wide Temperature Range Increase System Reliability

    MAX25601B
    Synchronous Boost and Synchronous Buck LED Controllers

    • Integration Minimizes BOM for High-Brightness LED Driver, Saving Space and Cost
    • Wide Dimming Ratio Allows High Contrast Ratio
    • Protection Features and Wide Temperature Range Increase System Reliability

    MAX25601C
    Synchronous Boost and Synchronous Buck LED Controllers

    • Integration Minimizes BOM for High-Brightness LED Driver, Saving Space and Cost
    • Wide Dimming Ratio Allows High Contrast Ratio
    • Protection Features and Wide Temperature Range Increase System Reliability

    MAX25601D
    Synchronous Boost and Synchronous Buck LED Controllers

    • Integration Minimizes BOM for High-Brightness LED Driver, Saving Space and Cost
    • Wide Dimming Ratio Allows High Contrast Ratio
    • Protection Features and Wide Temperature Range Increase System Reliability

    MAX20076E
    36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • 20ns Minimum On-Time Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAX25276D
    36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • 20ns Minimum On-Time Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAX20076D
    36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • 20ns Minimum On-Time Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAX20075D
    36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • 20ns Minimum On-Time Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAXM17720
    Integrated 4V-60V, 150mA, Himalaya uSLIC Power Module DC-DC Converter with 50mA Linear Regulator

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17724
    Integrated 4V-60V, 150mA, Himalaya uSLIC Power Module DC-DC Converter with 50mA Linear Regulator

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17712
    Integrated 4V-60V, 150mA, Himalaya uSLIC Power Module DC-DC Converter with 50mA Linear Regulator

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM15068
    7.5V to 60V, 200mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17633
    4.5V to 36V, 2A Himalaya uSLIC Step-Down Power Modules

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17634
    4.5V to 36V, 2A Himalaya uSLIC Step-Down Power Modules

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17635
    4.5V to 36V, 2A Himalaya uSLIC Step-Down Power Modules

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17537
    4.5V to 60V, 3A High-Efficiency, DC-DC Step-Down SiP Power Module with Integrated Inductor

    • Reduces Design Complexity, Manufacturing Risks, and Time to Market
    • Saves Board Space in Space-Constrained Applications
    • Offers Flexibility for Power-Design Optimization

    MAXM17632
    4.5V to 36V, 1A Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17631
    4.5V to 36V, 1A Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17630
    4.5V to 36V, 1A Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAX15095D
    2.7V to 18V, 6.6A Integrated Hot-Swap/Electronic Circuit Breaker

    • Integration Reduces Solution Size for Blade Servers and Other Space-Constrained Designs
    • Flexibility Enables Use in Many Unique Designs
    • Safety Features Ensure Accurate, Robust Protection

    MAX15095, MAX15095A, MAX15095D
    2.7V to 18V, 6.6A Integrated Hot-Swap/Electronic Circuit Breaker

    • Integration Reduces Solution Size for Blade Servers and Other Space-Constrained Designs
    • Flexibility Enables Use in Many Unique Designs
    • Safety Features Ensure Accurate, Robust Protection

    MAX15095A
    2.7V to 18V, 6.6A Integrated Hot-Swap/Electronic Circuit Breaker

    • Integration Reduces Solution Size for Blade Servers and Other Space-Constrained Designs
    • Flexibility Enables Use in Many Unique Designs
    • Safety Features Ensure Accurate, Robust Protection

    Reference Designs

    Type ID Title
    Evaluation Board3465MAX1906EVKIT Evaluation Kit for the MAX1906X, MAX1906V, MAX1906S