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MIC79050

Simple Lithium-Ion Battery Charger

Status: In Production

Features:

  • 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
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

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 state, 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-pin versions also come equipped with enable and feedback inputs. All versions are specified over the temperature range of -40°C to +125°C.

Additional Features
    • 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
Parametrics
Name
Value
Linear Mode
Yes
# of Cells
1
Int/Ext FET
Yes
Vcc Range (V)
2.5 to 16
Voltage Regulation Accuracy (%)
0.75

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC79050-4.2YMM
0.025100
0.124600
8
MSOP
3x3mm
NiPdAu
e4
MIC79050-4.2YMM-TR
0.025100
0.334700
8
MSOP
3x3mm
NiPdAu
e4
MIC79050-4.2YM
0.078000
0.180842
8
SOIC
3.9mm
NiPdAu
e4
MIC79050-4.2YM-TR
0.078000
0.238400
8
SOIC
3.9mm
NiPdAu
e4
MIC79050-4.2YS
0.123000
0.243590
3
SOT-223
-
Matte Tin
e3
MIC79050-4.2YS-TR
0.123000
0.440000
3
SOT-223
-
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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