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MP2662 21V, 500mA Single-Cell Li-ion Battery Charger WLCSP-9
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pMPS MP2662 — Single-Cell Li-ion Battery Charger, 21V input, 500 mA output, WLCSP-9./p
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MP2662 21V, 500mA Single-Cell Li-ion Battery Charger WLCSP-9
The MPS MP2662 is a Single-Cell Li-ion Battery Charger. It accepts up to 21 V at the input, is rated for 500 mA and handles 1s battery stacks. It is supplied in a WLCSP-9 package.
The MP2662 is a highly integrated, single-cell, Li-ion/Li-polymer battery charger with system power path management for space-limited portable applications.
Key Specifications
| Part Number | MP2662 |
| Function | Single-Cell Li-ion Battery Charger |
| Input Voltage | up to 21 V |
| Current Rating | 500 mA |
| Battery Cells | 1s |
| Interface | I²C |
| Package | WLCSP-9 |
| Ordering Codes | MP2662 |
Features
- Fully Autonomous Charger for Single-Cell Li-Ion/Polymer Batteries
- 21V Maximum Input Voltage Rating with Over-Voltage Protection (OVP)
- ±0.5% Charging Voltage Accuracy
- I2C Interface for Setting Charging Parameters and Status Reporting
- Fully Integrated Power Switches and No External Blocking Diode Required
- Built-In Robust Charging Protection Including Battery Temperature Monitoring and Programmable Timer
- PCB Over-Temperature Protection (PCB_OTP)
- System Reset Function
- Built-In Battery Disconnection Function for Shipping Mode
- Thermal Limiting Regulation On-Chip
Typical Application Circuit
Applications
- Wearable Devices
- Smart Handheld Devices
- Fitness Accessories
Design Notes
- Charge current accuracy depends on the sense resistor tolerance, so use a 1% or better part and keep its traces Kelvin-connected.
- Wire the NTC input for JEITA profile control if the pack is charged over temperature.
- Set the input current limit to what the adapter can actually deliver; a limit above the adapter rating causes the input rail to collapse mid-charge.
- Termination current and recharge threshold dominate cycle life in shallow-cycling products.
Common Questions
What input voltage does the MP2662 support?
Up to 21 V. The rated output is 500 mA.
Which package and ordering codes apply to the MP2662?
WLCSP-9; order codes include MP2662.
What are the defining features of the MP2662?
Fully Autonomous Charger for Single-Cell Li-Ion/Polymer Batteries 21V Maximum Input Voltage Rating with Over-Voltage Protection (OVP)
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