The MIC79050-4.2BS is a simple single-cell Lithium-Ion battery charger. It includes an on-chip pass transistor for high precision charging. Featuring ultra-high precision (±0.75% over the Li-Ion battery charging temperature range) and zero off-mode current state, the MIC79050-4.2BS provides a very simple, cost effective solution for charging Lithium-Ion battery.Other features of the MIC79050-4.2BS include current limit and thermal shutdown protection. In the event the input voltage to the charger is disconnected, the MIC79050-4.2BS also provides minimal reverse-current and reversed-battery protection.The MIC79050-4.2BS is a fixed 4.2V device and comes in the thermally-enhanced MSOP-8, SOIC-8, and SOT-223 packages. The 8-pin versions also come equipped with enable and feedback inputs. All versions are specified over the temperature range of -40°C to +125°C.
Feature
- High accuracy charge voltage: ±0.75% over -5°C to + 60°C (Li-Ion charging temperature range)
- Zero off-mode current
- 10µA reverse leakage
- Ultra-low 380mV dropout at 500mA
- Wide input voltage range
- Logic controlled enable input (8-pin devices only)
- Thermal shutdown and current limit protection
- Power MSOP-8, Power SOIC-8, and SOT-223
- Pulse charging capability
