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MIC79050 Datasheet(PDF) 1 Page - Microchip Technology |
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MIC79050 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 28 page  2017 - 2022 Microchip Technology Inc. and its subsidiaries. DS20005771B-page 1 MIC79050 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 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. Package Types MIC79050 3-Lead SOT-223 (S) IN BAT GND 13 2 TAB GND MIC79050 8-Lead SOIC/MSOP (M/MM) 1 2 3 4 8 7 6 5 GND GND GND GND EN IN BAT FB Simple Lithium-Ion Battery Charger |
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