MM3458
Outline
This IC is linear charge control IC for 1–cell Li–ion and Li-polymer battery.
This IC does not require externally provided sensing resistor
or reverse-current protection diode, enabling reductions in the
component count and the amount of generated heat.
This IC is battery temperature profile compliant, Function to limit charging current and voltage in low and high 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. JEITA battery temperature profile compliant
4. Built-in thermal regulation function
5. Charge status flag (Nch open drain)
6. Space saving package (2.7mm x 2.5mm x 0.55mm)
7. Operating temperature range Ta=-40～85℃
Applications
Mobile device(Wearable device, healthcare device, others)
Major Specification
| Parameter | Specifications | Unit |
|---|---|---|
| Rating voltage (VIN) | 6 | V |
| Operating voltage range (VIN) | 4.0～6.0 | V |
| Charge voltage | 4.2 | V |
| Fast charge current | 1500 | 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 |
