MIC79050-4.2YS集成电路（IC）的电池充电器规格书PDF中文资料

MIC79050-4.2YS属于集成电路（IC）的电池充电器。由微芯科技股份有限公司制造生产的MIC79050-4.2YS电池充电器电池充电器 PMIC（电源管理集成电路）是元器件级产品系列，用于在电子设备中实现电池充电控制和充电管理功能。这些器件主要根据电池化学及其设计用于的电池数量来分类，可提供电化学电池和超级电容器安全充电所必需的电流或电压调节和监视功能。

General Description

The MIC79050 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, the MIC79050

provides a very simple, cost effective solution for

charging lithium-ion battery.

Other features of the MIC79050 include current-limit

and thermal shutdown protection. In the event the input

voltage to the charger is disconnected, the MIC79050

also provides minimal reverse-current and

reversed-battery protection.

The MIC79050 is a fixed 4.2V device and comes in the

thermally-enhanced MSOP-8, SOIC-8, and SOT-223

packages. The 8-lead versions also come equipped

with enable and feedback inputs. All versions are

specified over the temperature range of –40°C to+125°C.

特性 Features

• High-Accuracy Charge Voltage: ±0.75 over

–5°C to + 60°C (Li-ion charging temperature range)

• Zero Off-Mode Current

• 10 μA Reverse Leakage

• Ultra-Low 380 mV Dropout at 500 mA

• Wide Input Voltage Range

• Logic-Controlled Enable Input (8-Lead Devices Only)

• Thermal Shutdown and Current-Limit Protection

• Power MSOP-8, Power SOIC-8, and SOT-223 Packages

• Pulse Charging Capability

Applications

• Li-Ion Battery Charger

• Cellular Phones

• Palmtop Computers

• PDAs

• Self-Charging Battery Packs