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Lithium-ion battery monitoring LSI

Stand-alone type

Stand-alone type

  • Lineup
  • Overview
  • Evaluation kits
  • Document
  • FAQ
 

Stand-alone type

 

White
paper

general
description

Supply
voltage

OV
detection
accuracy

(Typ.)

FET
drive
circuit

Current
consum-
ption
in normal
mode

(Typ.)

Current
consum-
ption
in power
down
mode

(Typ.)

OV / UV
detection

Charge/
discharge
OC
detection

SC
dete-
ction

Setting
thres-
hold

Opera-
ting
temper-
ature
  (°C)  

PKG

OV : Overvoltage
UV : Undervoltage
OC : Overcurrent
SC : Short current

 

Overview

Lithium-ion battery monitoring LSI,Stand-alone type

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), and FET gate-driver circuit built-in.

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

Features

Features1
Maximum operating voltage 80V
Maximum operating voltage 80V. Allow wide margin for noise

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

Features2
Supports 4 to 14-cells line-up

Since it supports 4-cells to 14-cells in series, it is possible to constitute the optimum system for various applications.

Features3
The lowest current consumption in the industry
Contributiing to energy saving of system

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.

Features4
Multistage connection supports multi-cell high voltage systems
Supports to multi-cells high voltage system with multistage connection

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

Features5
MOS-FET overheating prevention function realize the miniaturization and high reliability
By built-in FET overheat protection function, realize the miniatulization 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.

Features6
Highly 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.

Features7
Line-up secondary protection LSI for multi-cell system
 Lithium-ion battery monitoring LSI secondary protection LSI

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.

Features8
Cell voltage and current mesurement function
Cell 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.

Features9
Provide an evaluation board
Evaluation tool

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

Stand-alone type

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

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.

 

LSI Evaluation kits

  Evaluation board
outline
Evaluation kit
Contents
Notes Sample and
Buy
 

Evaluation kit provided

Privide evaluation board
  • 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.)


 

LSI Documents Download

 

Data
sheets

rev.

Users
Manual

rev.

White
paper

rev.

Errata

rev.

Other

rev.

Package Code

Dimensions,
Implementation specifications

Environmental
data

MSL



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