Overview
The LC709203FXE-03MH is a Fuel Gauge IC designed by onsemi, specifically tailored for monitoring single-cell lithium-ion (Li+) and lithium-polymer batteries. It is part of the Smart LiB Gauge family of fuel gauges, known for their high accuracy and precision in measuring the remaining battery power. This IC features a unique correction technology that enhances the accuracy of battery temperature and voltage measurements without the need for an external sense resistor.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | VDD | 2.5 | - | 4.5 | V |
| Input Voltage (TSENSE) | VI | -0.3 | - | VDD + 0.3 | V |
| Output Voltage (TSW) | VOH | VDD - 0.4 | - | - | V |
| Low Level Output Voltage (TSW) | VOL | - | - | 0.4 | V |
| High Level Input Current (SDA, SCL) | IIH | - | - | 1 | μA |
| Low Level Input Current (SDA, SCL) | IIL | -1 | - | - | μA |
| Operating Ambient Temperature | Topr | -40 | - | 85 | °C |
| Storage Ambient Temperature | Tstg | -55 | - | 125 | °C |
| Package Type | - | - | - | WLCSP-9 | - |
Key Features
- High accuracy of remaining battery power measurements
- Precision voltage measurement
- No external sense resistor required
- Alert function for low battery and low voltage
- I2C interface (up to 400 kHz supported)
- Low power consumption
- Temperature compensation via thermistor input or I2C
- Detects battery insertion
- Compact packaging in WLCSP-9 (1.60x1.76 mm)
- Pb-free and Halogen-free package
Applications
- Wireless handsets
- Smartphones and PDA devices
- MP3 players
- Digital cameras
- Portable game players
- USB-related devices
- Battery management for portable and wireless applications
Q & A
- What is the primary function of the LC709203FXE-03MH?
The primary function is to measure the remaining power level of single-cell lithium-ion (Li+) and lithium-polymer batteries.
- What is the operating voltage range of the LC709203FXE-03MH?
The operating voltage range is from 2.5V to 4.5V.
- Does the LC709203FXE-03MH require an external sense resistor?
No, it does not require an external sense resistor.
- What communication interface does the LC709203FXE-03MH support?
The LC709203FXE-03MH supports an I2C interface up to 400 kHz.
- What are the key features of the temperature measurement in the LC709203FXE-03MH?
The temperature measurement can be done via thermistor input or through the I2C interface.
- What is the package type of the LC709203FXE-03MH?
The package type is WLCSP-9 (1.60x1.76 mm).
- Is the LC709203FXE-03MH Pb-free and Halogen-free?
- What are some common applications of the LC709203FXE-03MH?
Common applications include wireless handsets, smartphones, MP3 players, digital cameras, and portable game players.
- What is the operating ambient temperature range of the LC709203FXE-03MH?
The operating ambient temperature range is from -40°C to 85°C.
- Does the LC709203FXE-03MH support low battery and low voltage alerts?
