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Hangzhou Ruimeng Tech MS9940T product image
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Hangzhou Ruimeng Tech MS9940TRoHS

Manufacturer
Hangzhou Ruimeng TechAsian Brands
MPN
MS9940T
LCSC Part #
C5371402
Packaging
TSSOP-48
Customer #
Key Attributes
Battery management chips for 11 to 15 cells of lithium or phosphate batteries
Datasheetpdf iconHangzhou Ruimeng Tech MS9940T
In-Stock: 48
48 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 3.2239$ 3.22
10+$ 2.7559$ 27.56
30+$ 2.4782$ 74.35
100+$ 2.1974$ 219.74
500+$ 2.0673$ 1033.65
1,000+$ 2.0086$ 2008.60
Standard Packaging3000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Management
ManufacturerHangzhou Ruimeng Tech
PackagingTSSOP-48
FeaturesOvercurrent Protection;Short-Circuit Protection;Overvoltage protection;Over-discharge protection;Cell balancing
Operating Temperature-40℃~+85℃
Quiescent Current720nA
0V Battery Charge-
Type of BatteryLithium Battery;LiFePO4 Battery
Operating Voltage2.5V;3.3V
The Chip TypeProtection IC;Balancing IC
InterfaceI2C
Charge Current - Max-
Balance Current5mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

MS9940T is an analog front-end (AFE) IC supporting 11 to 15 series-connected battery cells. Via I2C, a host controller can use the MS9940T to implement battery pack management functions, including monitoring (cell voltage, pack current, pack temperature), protection (charge/discharge FET control), and cell balancing. Compatible with various battery chemistries such as Li-ion and LiFePO₄. The MS9940T operates over a temperature range of -40℃ to 85℃.

Features

AI Translation
  • Internal ADC measurement of cell voltage, die temperature, and operating ambient temperature
  • Dedicated internal ADC for cell pack current measurement (coulomb counter)
  • Direct support for up to three thermistors (103AT)
  • Overcurrent in discharge (OCD), short circuit in discharge (SCD)
  • Overvoltage (OV), undervoltage (UV)
  • Secondary protector fault detection
  • I2C interface
  • Integrated cell balancing FET
  • Charge and discharge low-side N-channel FET drivers
  • Alert interrupt for host MCU
  • Default 3.3V output regulator with 2.5V option
  • High supply voltage rating: 108V
  • Random cell connection tolerance

Applications

AI Translation
  • Light electric vehicles
  • Power tools and garden tools
  • Backup battery units
  • Wireless base station backup systems
  • Industrial battery packs