Outline
This IC is linear charge control IC for 1-cell Li-ion and Li-polymer batteries.
It is capable of charging from 0V of battery voltage, so it is
adaptive for low capacity battery (coin) .
It is capable of setting of BAT regulation voltage according to various battery.
It does not require an externally provided sensing resistor or
reverse-current protection diode, enabling reductions in the
component count and the amount of generated heat.
Function to charge control (OFF) at high/low battery temperature ensures safety of battery.
Product Series
Linear Charger IC (Single function Type)
Features
1. Built-in Power MOSFET
2. Built-in reverse current protection
3. Charge voltage selectable (CVSEL pin)
4. Charge control charge temperature by thermistor (Stop:Over 45℃, under 0℃)
5. Built-in thermal regulation function
6. Charge status flag (Nch open drain)
7. Space saving package (2.7mm x 2.5mm x 0.55mm)
8. Operating temperature range Ta=-40～85℃
Applications
Small mobile device(Wearable device, healthcare device, others)
Major Specification
| Parameter | Specifications | Unit |
|---|---|---|
| Rating voltage (VIN) | 6 | V |
| Operating voltage range (VIN) | 4.5～5.5 | V |
| Charge voltage | 4.2/4.05 | V |
| Fast charge current | 700 | mA |
| Pre charge current | Fast charge current x0.1 | mA |
| Fast charge starting voltage | 3 | V |
| Full charge current | Fast charge current x0.1 | mA |
| BAT leakage current (max.) | 2 | μA |
| Thermal regulation temperature | 93 | ℃ |
| Charge timer | Pre:1, Fast:5 | Hour |
