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MP2790

更新时间： 2024-11-26 17:15:31
品牌 Logo 应用领域
芯源 - MPS 电池监控
页数 文件大小 规格书
126页 1723K
描述
具有库仑计数功能的 7 节至 10 节高精度电池监控器和保护器

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MP2790 数据手册

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MP2790  
DESCRIPTION  
FEATURES  
The MP2790 is a robust battery management  
device, providing a complete analog front-end  
(AFE) monitoring and protection solution. It is  
designed for multiple-cell series battery  
management systems (BMS). The device can  
support I2C or SPI communication. It supports  
connections for 7-cell to 10-cell series battery  
packs, with an absolute voltage exceeding 80V  
on particular pins.  
•
Incorporates Dual ADC Architecture  
o <±2% SOC Error with MPF4279x Fuel  
Gauge  
o Cell Voltage Measurement Error <5mV  
o Current/Coulomb Counter Error <±0.5%  
o Strictly Synchronized Current/Voltage  
Measurement for Impedance Sensing  
Includes N-Channel HS-FET Drivers for  
Charge and Discharge Control:  
o Supports MOSFET Soft-Start Discharge  
Control to Eliminate Pre-Charge Circuit  
o Drives Up to 100A DC with Parallel N-  
Channel MOSFETs  
•
•
The MP2790 integrates two separate analog-to-  
digital converters (ADCs). The first ADC  
measures each channel’s differential cell  
voltages (up to 10 channels), die temperature,  
and 4-channel temperatures via external NTC  
thermistors. The second ADC measures the  
charge/discharge current via an external current-  
sense resistor. The dual ADC architecture  
enables synchronous voltage and current  
measurements for cell and pack impedance  
monitoring.  
Hardware Configurable Protections:  
o Charge/Discharge OCP and SCP  
o Cell UVP and OVP  
o Pack UVP and OVP  
o Cell Low-/High-Temperature Protection  
o Die High-Temperature Protection  
Passive Cell Balancing up to 58mA per Cell:  
o Drives External Balancing Transistors  
o Automatic or Manual Control  
Additional Features:  
o Integrated 3.3V and 5V LDOs  
o Reduced Current Standby Mode  
o Load and Charger Plug-In Detection  
o High-Voltage and Low-Voltage GPIOs  
o Dedicated Thermistor Inputs  
o Open Wire Detection  
o Persistent Dead Battery Flag  
o Lockable MTP for Key Thresholds  
I2C or SPI Interface with 8-Bit CRC  
Random Cell Connection Tolerant  
Available in a TQFP-48 (7mmx7mm)  
Package  
•
•
When paired with an MPF4279x fuel gauge, the  
MP2790 can achieve a state-of-charge (SOC)  
error to within 2%.  
The MP2790 includes high-side MOSFET (HS-  
FET) drivers for charge and discharge control.  
The discharge (DSG) MOSFET driver includes a  
configurable soft start (SS) that provides a  
controlled turn-on, eliminating the need for an  
external pre-charge circuit. The MOSFET drivers  
also incorporate over-current protection (OCP),  
short-circuit protection (SCP), battery under-  
voltage protection (UVP), battery over-voltage  
protection (OVP), and high-/low-temperature  
protection. All of these protections have  
configurable thresholds.  
•
•
•
APPLICATIONS  
•
Internal passive balancing MOSFETs can be  
used to equalize mismatched cells, supporting  
up to 58mA. There is also the option to drive  
external balancing transistors (MOSFET or  
bipolar junction transistor [BJT]).  
Battery Backups and Uninterruptable Power  
Supplies (UPS)  
Power and Gardening Tools  
E-Bikes, E-Scooters  
Energy Storage Systems (ESS)  
Light Electric Vehicles (LEVs)  
•
•
•
•
The MP2790 is available in a TQFP-48  
(7mmx7mm) package.  
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.  
For MPS green status, please visit the MPS website under Quality  
Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are  
trademarks of Monolithic Power Systems, Inc. or its subsidiaries.  
MP2790 Rev. 1.0  
8/22/2023  
MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2023 MPS. All Rights Reserved.  
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