MP2617B 4-10V, 3A Switching Charger QFN-20

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MP2617B 4-10V, 3A Switching Charger QFN-20

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pMPS MP2617B — Switching Charger, 4-10V input, 3 A output, QFN-20./p

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MPS Battery Management charger QFN-20 Power Management

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MP2617B 4-10V, 3A Switching Charger QFN-20

The MPS MP2617B is a Switching Charger. It operates from a 4 V to 10 V input, is rated for 3 A, handles 1s battery stacks and switches at 1.6 MHz. It is supplied in a QFN-20 package.

The MP2617A / MP2617B is a monolithic switch mode battery charger with power path management for single-cell Li-ion batteries in a wide range of tablet and other portable devices.

Key Specifications

Part Number	MP2617B
Function	Switching Charger
Input Voltage	4 V to 10 V
Current Rating	3 A
Battery Cells	1s
Switching Frequency	1.6 MHz
Package	QFN-20
Ordering Codes	MP2617B

Features

4V to 10V Operating Input Voltage
Smart Power Path Management
Five Control Loops: Input Current Limit, Input Voltage Limit, Constant Charge Current, Terminal Battery Control and Thermal Fold-Back.
1.6MHz Switching Frequency
Programmable Input Current Limit
Programmable Charge Current
Single Input for USB and AC adapter
Cover USB2.0 and USB3.0 Input Specification
Fully Integrated Power Switches
No External Blocking Diode and Sense Resistor Required

Typical Application Circuit

Applications

Smart Phone
Portable Media Player
Portable Hand-held Solution

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.