Intersil ISL9209CIRZ

电池监控器锂离子-40°C ~ 85°C（TA）

Overview

The ISL9209CIRZ is an integrated circuit (IC) optimized to provide a redundant safety protection to a Li-ion battery from failures of a charging system. The IC monitors the input voltage, the battery voltage, and the charge current. When any of the three parameters exceeds its limit, the IC turns off an internal P-Channel MOSFET to remove the power from the charging system. In addition to the above protected parameters, the IC also monitors its own internal temperature and turns off the P-Channel MOSFET when the temperature exceeds +140°C. Together with the battery charger IC and the protection module in a battery pack, the charging system using the ISL9209CIRZ has triple-level protection and is two-fault tolerant. The IC is designed to turn on the internal PFET slowly to avoid in-rush current at power-up but will turn off the PFET quickly when the input is overvoltage in order to remove the power before any damage occurs. The ISL9209CIRZ has a logic warning output to indicate the fault and an enable input to allow the system to remove the input power.

Features

Tube Package
with 12 Pins
operate supply voltage at the range of 5V

Surface Mount Mounting Type

Applications

There are a lot of Intersil (Renesas Electronics America)
ISL9209CIRZ Battery Management ICs applications.

• Golf carts
• Electric-powered machinery
• Fork lifts
• Grid power infrastructure
• Cell phone towers
• A/C power substations
• Internet infrastructure equipment
• Aviation ground support systems
• Tower communications
• Weather stations