MAX1782

Advanced Smart Battery-Pack Controller


Please check latest availability status for a specific part variant.

Description

The MAX1782 smart battery-pack controller integrates a user-programmable microcontroller core, a coulomb-counting fuel gauge, a multi-channel data-acquisition unit, and an SMBus™ v1.1 compliant master/slave SMBus interface. The 8-bit, RISC microcontroller core has an integrated 8k bytes of user programmable EEPROM, which provides battery-pack designers with complete flexibility in developing fuel gauging and control algorithms. The MAX1782 is equipped with full ICE (in-circuit emulator) capability for efficient firmware development and debugging.

The 16-bit data-acquisition unit measures individual cell voltages, cell stack voltage, chip internal/external temperature, and two general purpose analog inputs. Individual cell voltage measurements with 0.85% accuracy and over-current protection allow the MAX1782 to eliminate a separate 1st level protection IC. Adjustable over-current thresholds and delay timers provide a flexible solution.

The MAX1782 provides an additional input which allows the protection MOSFETs to be forced off by external hardware.

The integrating fuel gauge module provides a typical input offset of less than 1µV, and gain accuracy of better than 1.5% with no trimming required during pack manufacture. The MAX1782 has a wide 4V to 28V operating voltage range. The IC is available in a 7mm x 7mm 48-TQFN package with a maximum thickness of 0.8mm.

Key Features

  • Accurate Fuel Gauge Uses V to F Method
    • < 1µV Input Offset Voltage
    • < 1.5% Gain Accuracy
    • No Calibration Required
  • 8-bit RISC Microcontroller Core
  • 8k Bytes of Program/Data EEPROM
  • 64 Bytes of Byte Writeable EEPROM
  • 264 Bytes of RAM
  • Watchdog Timer
  • ICE for Firmware Debugging
  • Integrated Development Environment (IDE)
    • C Compiler
    • Inline Assembler
  • Eliminates Separate Primary-Protection IC
    • Individual Cell Voltage Measurements with 0.85% accuracy
    • Built-In Protection MOSFET Gate Drivers
    • 8% Accurate Overcurrent Protection
    • Programmable Over-Current Delay Timers
  • SMBus v1.1-Compliant, with Master Capability
  • Typical Operating Current < 120µA
  • Typical Shutdown Current < 10nA
  • Integrated 32kHz Oscillator: No Crystal
  • Fully Integrated LDO (VIN = 4V to 28V)

Applications/Uses

  • Data Acquisition Systems
  • Notebook Battery Packs
  • Proprietary Battery Packs
  • Remote Data Logging
Product Reliability Reports: MAX1782.pdf 
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 >

 
Status:
Package:
Temperature:

Related Resources


MAX77831
2.5V to 16V Input, 18W Output High-Efficiency Buck-Boost Converter

  • Wide Input Voltage Range: 2.5V to 16V
  • Default Output Voltage
  • Default 1.8MHz Switching Frequency

MAX25222
Automotive 4-Channel TFT-LCD Power Supply with VCOM Buffer and ASIL B Features

  • High Integration
  • Low EMI
  • I2C Control/Diagnostic Interface with FLTB (Interrupt) Output

MAX15157B
60V Current-Mode Buck Controller with Accurate Current Report

  • Wide Operating Range Reduces Development Time
  • Integration Reduces Design Footprint
  • Robust Fault Protection Improves Quality and Simplifies System Design

MAX25605
6-Switch Sequential LED Controller For Automotive Lighting Systems

  • Flexible Dimming Configuration Provides Optimal Performance​ without a Microcontroller or Software
  • Flexible Configuration Allows the Use of the Same Device in Different Applications​
  • EMI Reduction

MAX77960
25VIN 3A/6AOUT USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries

  • 3.5V to 25.4V Input Operating Range, 30VDC Withstand
  • 97% Peak Efficiency for 2S Battery at 9VIN/7.4VOUT/1.5AOUT
  • 97% Peak Efficiency for 3S Battery at 15VIN/12.6VOUT/2AOUT

MAX77961
25VIN 3A/6AOUT USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries

  • 3.5V to 25.4V Input Operating Range, 30VDC Withstand
  • 97% Peak Efficiency for 2S Battery at 9VIN/7.4VOUT/1.5AOUT
  • 97% Peak Efficiency for 3S Battery at 15VIN/12.6VOUT/2AOUT

MAX20361
Small, Single-/Multi-Cell Solar Harvester with MPPT and Harvest Counter

  • Single-/Multi-Cell Solar Energy Harvester
  • Maximum Power Point Tracking (MPPT) Technique Using Fractional VOC Method
  • Battery/Supercapacitor Charger

MAX20360
PMIC with Ultra-Low IQ Regulators, Charger, Fuel Gauge, and Haptic Driver for Small Li+ System

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

MAX38886
2.5V to 5.0V, 0.5A/2.5A, Charge/Discharge Regulator for Supercapacitor Backup Applications

  • 2.5V to 5V System Output Voltage
  • Up to 4.5V Capacitor Voltage Range
  • Up to 2.5A Peak Inductor Discharge Current

MAX20342
USB Type-C Charger Detector with Integrated OVP

  • Low Power Consumption
  • Delivers USB Compliance and Flexibility
  • Simplifies Complex System Designs

MAX77655
Low IQ SIMO PMIC with 4-Outputs Delivering up to 700mA Total Output Current

  • Highly Integrated
  • Flexible and Configurable
  • Small Size

MAX17783C
4.5V to 60V, 2.5A, High Efficiency, Step-Down DC-DC Converter

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

MAX25210
Automotive Ultra Low Quiescent Current Linear Regulator Family

  • Enables System Designers to Meet Stringent Module Requirements for 100μA Quiescent Current
  • Tiny Output Capacitors Reduce Board Space and BOM Cost
  • Accurate Active-Low RESET Output with Adjustable Delay Eliminates Need for Separate Reset IC

MAX17691A
4.2V–60V No-Opto Isolated Flyback Converter with Integrated FET

  • Reduces External Components and Total Cost
  • Reduces Power Dissipation
  • Supports Key System-Level Design Requirements

MAX17691B
4.2V–60V No-Opto Isolated Flyback Converter with Integrated FET

  • Reduces External Components and Total Cost
  • Reduces Power Dissipation
  • Supports Key System-Level Design Requirements

MAX20028
Step-Down Controller with Dual 2.1MHz Step-Down DC-DC Converters

  • High-Efficiency Voltage DC-DC Controller Saves Power
  • Dual 2.1MHz DC-DC Converters with Integrated FETs Saves Space
  • High Accuracy to Meet ASIL Specification

MAX77533
14V Input, 1.5A High-Efficiency Buck Converter with 9μA IQ

  • 1.5A Single Channel Buck Regulator
  • 3V to 14V Input Voltage Range
  • 0.8V to 99%VSUP Output Voltage Range

MAX20766
Smart Slave IC with Integrated Current and Temperature Sensors

  • Increased Power Density with Fewer External Components
  • Accurate Real-Time Telemetry of Critical Parameters
  • Advanced Self-Protection Features for the System and IC

MAX20796
Dual-Phase Scalable Integrated Voltage Regulator with PMBus Interface

  • Peak Efficiency 92%; Full-Load Efficiency 90% at VIN = 12V, VOUT = 1V
  • Operating Input Voltage Range 4.5V to 16V
  • Output Voltage Range is 0.5V to 5.5V

MAX17227A
400mV to 5.5V Input, 2A nanoPower Boost Converter with Short-Circuit Protection and True Shutdown

  • 350nA Quiescent Supply Current from Output
  • Output Short-Circuit Protection
  • True Shutdown Mode

MAX20030
Dual Buck, Sync Boost and LDO–Complete Front-End Power Supply with 17μA IQ

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
  • Enables Crank-Ready Designs
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range

MAX20031
Dual Buck, Sync Boost and LDO–Complete Front-End Power Supply with 17μA IQ

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
  • Enables Crank-Ready Designs
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range

MAX25431
Automotive 40V, 2.2MHz, H-Bridge Buck-Boost Controller

  • Meets Stringent Automotive Quality and Reliability Requirements
  • Efficient Solution in a Small Solutions Size
  • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements

MAX77932C
8A Dual-Phase Switched-Capacitor Converter

  • ​8A Switched Capacitor Converter
  • 2S to 1S Battery Voltage Conversion (VOUT = VIN/2)
  • Integrated Power Switches

MAX17701
4.5V to 60V, Synchronous Step-Down Supercapacitor Charger Controller

  • Optimized Feature Set for Supercapacitor Charging
  • Reliable Operation in Adverse Environmental Conditions

MAX25014
Automotive Low Input Voltage I2C 4-Channel 150mA Backlight Driver

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

MAX77751
3.15A USB Type-C Autonomous Charger for 1-Cell Li+ Batteries

  • Up to 16V Protection
  • 13.7V Maximum Input Operating Voltage
  • 3.15A Maximum Charging Current

MAX16926
Automotive 4-Output Display Power Solution with Watchdog

  • High Integration
  • Integrated Watchdog Timer
  • Robust and Low EMI

MAX25221
Automotive 4-Channel TFT-LCD Power Supply with VCOM buffer

  • High Integration
  • Low EMI
  • I2C Control/Diagnostic Interface with FLTB (Interrupt) Output

MAX25220
Automotive 4-Channel TFT-LCD Power Supply with VCOM Buffer

  • High Integration
  • Low EMI
  • I2C Control/Diagnostic Interface with FLTB (Interrupt) Output

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