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Stand-alone lineup

  White
paper
Description Supply
Voltage
(V)
Over
voltage
Detection
Accuracy
(Typ)(mV)
Charge/
Discharge
DControl
FET driver
Current
Consumption
Operating
(Typ)(µA)
Current
Consumption
Power
down
(Typ)(µA)
Over
voltage
Under
voltage
Detection
Chrage
and
Dischrage
Over-Current
Detection
Temperature
Detection
Short
Circuit
Detection
Open
Wire
Detection
Parameter
Change
Operation
Temperature
(°C)
PKG Halogen
Free
Support*1
Sample
and
Buy
  • *1 : Halogen-free compatible mark : Halogen-free compatible products are available. Contact your sales representative for details.
  • NRND :Not Recommended for New Designs

Overview

Abnormality detection and protection functions are implemented without microcontroller
  • The stand-alone type battery monitoring LSI protects the battery pack by itself without an external microcontroller.

  • Many kinds of functions for various applications are available , such as secondary protection, number of cells, various kinds of detection (overvoltage, undervoltage, charge / discharge overcurrent, high / low temperature, short-circuit current, open-wire ), and FET gate-driver circuit built-in.

  • There are some additional types that can measure each cell voltage and current by combined microcontroller.

Features

Features1Maximum operating voltage 80V

LAPIS Technology's original high voltage process realized maximum operating voltage of 80V.

Features2Supports 4 to 14-cells line-up

Since it supports 3-cells to 14-cells in series, it is possible to constitute the optimum system for various applications.

Features3The lowest current consumption in the industry

The current consumption in normal operation mode is 25µA (typ.), (ML5233 is 30µA) which is the lowest in the industry, and contributes to energy saving of system.
The current consumption in power-down mode is 0.1µA (typ.) which is the lowest in the industry, and battery pack long-term storage is possible.

Features4Multistage connection supports multi-cell high voltage systems

ML5233 supports multistage connection. It is possible to construct a multi-cell, exceeding 20-cells, high voltage Lithium-Ion battery systems.

Features5MOS-FET overheating prevention function realize the miniaturization and high reliability

The ML5245 has a function to suppress overheating caused by the current flowing through the body diode of the charge/discharge NMOS-FET.
It eliminates the need for connecting multiple NMOS-FETs in parallel, or adding a heat dissipation function, and it achieves miniaturization and high reliability.

Features6Highly accurate voltage detection

The cell voltage detection accuracy is the industry's best ±15 mV (ML5233 and ML5245). Since each cell voltage of the battery pack can be measured with high accuracy, the battery capacity can be used to the full.

Features7Line-up secondary protection LSI for multi-cell system

ML5232 supports up to 14-cells as a secondary protection LSI for multi-cell systems.
It detects overvoltage of each cell, and outputs one of two types of alarm signals, Nch open drain or CMOS.

Features8Cell voltage and current mesurement function

There are some additional types that outputs cell voltage and current measured by battery monitoring LSI. It is possible to read cell voltage and current measured with an external microcontroller. It can be used for battery gas-gauge and battery life prediction.

Features9Provide an evaluation board

Evaluation board is available for ML5233 and ML5245. By connecting an assembled battery pack to the evaluation board, battery pack system is evaluated easily.

Applications

The stand-alone type battery monitoring LSI protects battery packs in various application fields, and supports the safety of Li-ion batteries with various functions.

The stand-alone type of battery monitoring LSI protects battery pack in various application field

LSI Evaluation kits

  Evaluation board
outline
Evaluation kit
Contents
Notes Sample and Buy

Evaluation kit provided

Evaluation kit provided
Evaluation kits for battery monitoring LSI are available.
Connecting cables and software tools are included.
(included parts are different between each LSI.)
Privide evaluation board

LSI Documents Download

  • *MSL : Moisture Sensitivity Level
 

Data sheets

rev.

Users Manual

rev.

White paper

rev.

Errata

rev.

Other

rev.

Package Code

Dimensions,
Implementation
specifications

Environmental
data

MSL*