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MIC79050-4.2YM-TR
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Product Detailed Parameters
- Description：IC BATT CHG LI-ION 1CELL 8SOIC
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Battery Chemistry：Lithium Ion
- Voltage - Supply (Max)：16V
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Number of Cells：1
- Current - Charging：Constant, Pulsed
- Programmable Features：-
- Fault Protection：Over Current, Over Temperature, Reverse Battery, Reverse Current
- Charge Current - Max：-
- Battery Pack Voltage：4.2V
- Interface：-
- Grade：-
- Qualification：-
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Overview
The MIC79050-4.2YM-TR is a linear battery charger IC designed for single-cell lithium-ion batteries, manufactured by Microchip Technology. It features an integrated on-chip pass transistor to enable high-precision charging without external current sensing resistors. The device provides a fixed output voltage of 4.2V and supports input supply voltages up to 16V. It operates within a junction temperature range of -40°C to +125°C and is housed in an 8-pin SOIC-N package with tape-and-reel packaging.
Feature Summary
- Integrates an on-chip pass transistor for simplified circuit design
- Provides ultra-high precision charging accuracy over the operating temperature range
- Features zero off-mode current state to minimize power consumption when disconnected
Applications
- Single-cell lithium-ion battery charging systems
- Lithium-polymer battery management applications
Procurement Notes
Verify the specific suffix YM-TR corresponds to the 8-pin SOIC-N tape-and-reel configuration. Confirm RoHS compliance status as some variants may differ. Ensure the target application requires a fixed 4.2V output and does not need adjustable voltage settings. Check for any obsolete status or lifecycle notices from the manufacturer before finalizing procurement plans.
Selection Notes
Select this component when a simple, cost-effective solution for single-cell Li-Ion charging is required. It is suitable for designs where minimizing external component count is a priority due to the integrated pass transistor. Consider the 8-pin SOIC-N package constraints and the 16V maximum input voltage rating relative to the system power supply.
Part Context
This part belongs to the MIC79050 family of linear battery chargers. It is specifically configured for a 4.2V output target, distinguishing it from other voltage variants in the series. The 'YM' suffix indicates the 8-pin SOIC-N package, while '-TR' denotes the reel packaging format for automated assembly processes.
Replacement Considerations
Direct substitute: MIC79050-4.2YMM-TR (8-pin MSOP). Verify package compatibility and pinout alignment if transitioning between SOIC-N and MSOP footprints.
