MP2651

MP2651

I²C-Controlled, USB PD 6A Buck-Boost Charger with OTG/Source Mode for 1-Cell to 4-Cell Series Battery Applications

MPL

Description

MPL

Optimized Performance with MPS Inductor

The MP2651 is a buck-boost charger IC designed for battery packs with 1 cell to 4 cells in series. It can accept a wide 4V to 22V input voltage (V_IN) range to charge the battery. The buck-boost topology allows the battery voltage (V_BATT) to be above or below V_IN.

While the input is present, the MP2651 operates in charge mode. It measures V_BATT and charges the battery with four phases: constant current trickle charge, constant current pre-charge, constant-current fast charge, and constant voltage charge. Other features include charge termination and auto-recharge.

The MP2651 integrates the input current (I_IN) limit and V_IN limit to avoid overloading the input power source. This is compliant with USB and PD specifications. In source mode, the device can supply a wide 3V to 21V V_IN range, and has an output current (I_OUT) limit with a high resolution.

The I²C/SMBus interface can configure the charge and discharge parameters in source mode: I_IN limit, V_IN limit, charge current, battery-full regulation voltage, output voltage (V_OUT), and I_OUT. The device can also use the registers to provide information on statuses and faults. Full protection features include input over-voltage protection (OVP), battery OVP, CFLR OVP, thermal shutdown, and a configurable timer to prevent prolonged charging of a dead battery. The device also limits the die temperature to a configurable threshold to guarantee safe operation.

The MP2651 is available in a TQFN-30 (4mmx5mm) package.

Features & Benefits

Buck-Boost Charger for 1-Cell to 4-Cell Series Battery Packs
4V to 22V Operating Input Voltage (V_IN) Range
Up to 26V Sustainable Voltage, or Up to 28V with an External MOSFET
Smooth Transitions Between Buck and Buck-Boost Mode
Configurable Maximum Input Current (I_IN) Limit
Configurable Minimum V_IN Limit
Up to 6A Configurable Charge Current
Configurable Battery-Full Voltage Up to 4.67V/Cell with 0.5% Accuracy
Output Compatible with USB PD 3.0 Source Mode
Configurable 3V to 21V Output Voltage (V_OUT) with 20mV/Step
Up to 6A Output Current (I_OUT) with 50mA/Step
500kHz to 1.2MHz Configurable Switching Frequency (f_SW)
I²C/SMBus Host Control Interface to Support Flexible Parameter Setting
Input Power Source Status Indicator
Integrated 10-Bit ADC for Monitoring in Both Charge Mode and Source Mode
Analog Output Pin for Monitoring Charge Current
Input Over-Voltage Protection (OVP)
Battery OVP
Output Short-Circuit Protection (SCP) in Source Mode
Battery Missing Detection
NTC Pin Floating Detection
Integrated N-Channel MOSFET Driver for Input Power Pass-Through or OVP
Configurable JEITA for Battery Temperature Protection
Thermal Regulation and Thermal Shutdown
Available in a TQFN-30 (4mmx5mm) Package

Active Part Numbers:

MP2651GVT-xxxx-Z MP2651GVT-0000-Z MP2651GVT-xxxx-P MP2651GVT-0000-P

Meaning of P & Z

Evaluation Tools

Optimized Performance with MPS Inductor

EV2651-VT-00A Evaluation Kit I²C-Controlled, 1-Cell to 4-Cell Buck-Boost Charger with Reverse Source Mode Evaluation Board

MPL

Optimized Performance with MPS Inductor

The EV2651-VT-00A is an evaluation board designed to demonstrate the capabilities of the MP2651, a buck-boost charger IC designed for battery packs with 1 cell to 4 cells in series. The device can accept a wide 4V to 22V input voltage (V_IN) range to charge the battery. It also supplies a wide 3V to 21V voltage range at the IN pin in source mode. This function is compliant with USB PD specifications.

When input power is present, the board charges the battery with a maximum 6A charge current. When source mode is enabled, the device has an output current (I_OUT) limit up to 6A.

With the I²C/SMBus interface, the MP2651 can flexibly configure the charge and discharge parameters. The I²C interface can also provide the device and fault statuses through the registers.

$50.00
+ tax