MP26124

MP26124

24V Input, 2A, 600kHz, 4S Cell Switching Li-Ion Battery Charger

Datasheet

Description

The MP26124 is a monolithic, DC/DC, step-down, switching charger for 4-series cell Li-ion battery packs. The MP26124 has an integrated high-side power MOSFET that can output a charge current up to 2A and also has peak-current-mode control for fast loop response and easy compensation.
The MP26124 uses a sense resistor to control a programmable charge current and regulates the charge current and charge voltage accurately using two control loops.
The MP26124 has multiple fault condition protections including cycle-by-cycle current limiting and thermal shutdown. Other safety features include battery temperature monitoring and protection, charge status indication, and a programmable timer to stop the charging cycle when the timer expires.
The MP26124 requires a minimal number of readily available external components and is available in a QFN-16 (4mmx4mm) package.

Features & Benefits

Charge 4S Cell Li-Ion Battery Packs
Up to 24V Operation Voltage
Programmable Charging Current up to 2A
±0.75% VBATT Accuracy
0.2Ω Integrated Power MOSFET
Up to 90% Efficiency
Fixed 600kHz Frequency
Preconditioning for Fully Depleted Batteries
Charging Status Indicator
Input Supply Fault Indicator
Thermal Shutdown
Cycle-by-Cycle Over-Current Protection (OCP)
Battery Temperature Monitor and Protection
Available in a QFN-16 (4mmx4mm) Package

Active Part Numbers:

MP26124GR-P MP26124GR-Z

Meaning of P & Z

Related Products

EV26124-R-00A 4-Cell, 24V Input, 600kHz, Switching Li-Ion Battery Charger Evaluation Board

The EV26124-R-00A is an evaluation board designed to demonstrate the capabilities of the MP26124, a high-performance, 4-cell, Li-ion battery switching charger with a built-in, internal power MOSFET. The EV26124-R-00A achieves 1A of charge current across a wide input supply range. The charge current can be configured by sensing the current through an accurate sense resistor.

The MP26124 regulates the charge current and full-charge voltage using two control loops to achieve a highly accurate constant current (CC) charge and constant voltage (CV) charge. The device also integrates trickle charge, automatic recharge, and charger timer functions.

Full protection features include thermal protection, as well as battery temperature monitoring and protection. The MP26124 also indicates AC adapter power good (PG) and charge status to the system.

$25.00
+ tax